Add dependency check for git before stopping services

Reactive Resume v5.0.13 uses vite-plus (vp config) in its prepare
script which requires git. Without it, pnpm install fails with
'git command not found' (ELIFECYCLE exit code 1).

Closes #13110

CHANGELOG.md

@@ -427,7 +427,22 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
 ### 🆕 New Scripts
 
-  - teleport ([#13086](https://github.com/community-scripts/ProxmoxVE/pull/13086))
+  - iSponsorBlockTV ([#13123](https://github.com/community-scripts/ProxmoxVE/pull/13123))
+- Alpine-Wakapi ([#13119](https://github.com/community-scripts/ProxmoxVE/pull/13119))
+- teleport ([#13086](https://github.com/community-scripts/ProxmoxVE/pull/13086))
+
+### 🚀 Updated Scripts
+
+  - #### ✨ New Features
+
+    - Immich: v2.6.1 [@vhsdream](https://github.com/vhsdream) ([#13111](https://github.com/community-scripts/ProxmoxVE/pull/13111))
+    - VM's: add input validation and hostname sanitization to all VM scripts [@MickLesk](https://github.com/MickLesk) ([#12973](https://github.com/community-scripts/ProxmoxVE/pull/12973))
+
+### 🧰 Tools
+
+  - #### 🔧 Refactor
+
+    - Harden code-server addon install script [@MickLesk](https://github.com/MickLesk) ([#13116](https://github.com/community-scripts/ProxmoxVE/pull/13116))
 
 ## 2026-03-19
 

ct/alpine-wakapi.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Slaviša Arežina (tremor021)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://wakapi.dev/ | https://github.com/muety/wakapi
+
+APP="Alpine-Wakapi"
+var_tags="${var_tags:-code;time-tracking}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-4}"
+var_os="${var_os:-alpine}"
+var_version="${var_version:-3.23}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+  if [[ ! -d /opt/wakapi ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  RELEASE=$(curl -s https://api.github.com/repos/muety/wakapi/releases/latest | grep "tag_name" | awk '{print substr($2, 2, length($2)-3) }')
+  if [ "${RELEASE}" != "$(cat ~/.wakapi 2>/dev/null)" ] || [ ! -f ~/.wakapi ]; then
+    msg_info "Stopping Wakapi Service"
+    $STD rc-service wakapi stop
+    msg_ok "Stopped Wakapi Service"
+
+    msg_info "Updating Wakapi LXC"
+    $STD apk -U upgrade
+    msg_ok "Updated Wakapi LXC"
+
+    msg_info "Creating backup"
+    mkdir -p /opt/wakapi-backup
+    cp /opt/wakapi/config.yml /opt/wakapi/wakapi_db.db /opt/wakapi-backup/
+    msg_ok "Created backup"
+
+    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "wakapi" "muety/wakapi" "tarball"
+
+    msg_info "Configuring Wakapi"
+    cd /opt/wakapi
+    $STD go mod download
+    $STD go build -o wakapi
+    cp /opt/wakapi-backup/config.yml /opt/wakapi/
+    cp /opt/wakapi-backup/wakapi_db.db /opt/wakapi/
+    rm -rf /opt/wakapi-backup
+    msg_ok "Configured Wakapi"
+
+    msg_info "Starting Service"
+    $STD rc-service wakapi start
+    msg_ok "Started Service"
+    msg_ok "Updated successfully"
+  else
+    msg_ok "No update required. ${APP} is already at ${RELEASE}"
+  fi
+  exit 0
+}
+
+start
+build_container
+description
+
+msg_ok "Completed successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:3000${CL}"

ct/headers/alpine-wakapi

@@ -0,0 +1,6 @@
+    ___    __      _                _       __      __               _ 
+   /   |  / /___  (_)___  ___      | |     / /___ _/ /______ _____  (_)
+  / /| | / / __ \/ / __ \/ _ \_____| | /| / / __ `/ //_/ __ `/ __ \/ / 
+ / ___ |/ / /_/ / / / / /  __/_____/ |/ |/ / /_/ / ,< / /_/ / /_/ / /  
+/_/  |_/_/ .___/_/_/ /_/\___/      |__/|__/\__,_/_/|_|\__,_/ .___/_/   
+        /_/                                               /_/          

ct/headers/isponsorblocktv

@@ -0,0 +1,6 @@
+    _ _____                                   ____  __           __  _______    __
+   (_) ___/____  ____  ____  _________  _____/ __ )/ /___  _____/ /_/_  __/ |  / /
+  / /\__ \/ __ \/ __ \/ __ \/ ___/ __ \/ ___/ __  / / __ \/ ___/ //_// /  | | / / 
+ / /___/ / /_/ / /_/ / / / (__  ) /_/ / /  / /_/ / / /_/ / /__/ ,<  / /   | |/ /  
+/_//____/ .___/\____/_/ /_/____/\____/_/  /_____/_/\____/\___/_/|_|/_/    |___/   
+       /_/                                                                        

ct/immich.sh

@@ -83,7 +83,7 @@ EOF
     )
     INTEL_RELEASE="$(grep "intel-opencl-icd_" ./Dockerfile | awk -F '_' '{print $2}')"
     if [[ "$INTEL_RELEASE" != "$(cat ~/.intel_version)" ]]; then
-      msg_info "Updating Intel iGPU dependencies"
+      msg_info "Updating Intel OpenVINO dependencies"
       for url in "${INTEL_URLS[@]}"; do
         curl_with_retry "$url" "$(basename "$url")"
       done
@@ -94,9 +94,9 @@ EOF
       rm ./*.deb
       $STD apt-mark hold libigdgmm12
       dpkg-query -W -f='${Version}\n' intel-opencl-icd >~/.intel_version
-      msg_ok "Intel iGPU dependencies updated"
+      rm -f ./Dockerfile
+      msg_ok "Updated Intel OpenVINO dependencies"
     fi
-    rm ./Dockerfile
   fi
   if [[ -f ~/.immich_library_revisions ]]; then
     libraries=("libjxl" "libheif" "libraw" "imagemagick" "libvips")
@@ -109,7 +109,7 @@ EOF
     msg_ok "Image-processing libraries up to date"
   fi
 
-  RELEASE="v2.5.6"
+  RELEASE="v2.6.1"
   if check_for_gh_release "Immich" "immich-app/immich" "${RELEASE}" "each release is tested individually before the version is updated. Please do not open issues for this"; then
     if [[ $(cat ~/.immich) > "2.5.1" ]]; then
       msg_info "Enabling Maintenance Mode"
@@ -226,14 +226,13 @@ EOF
         [[ $attempt -lt 3 ]] && msg_warn "Python download attempt $attempt failed, retrying..." && sleep 5
       done
       msg_ok "Pre-installed Python ${ML_PYTHON}"
-      msg_info "Updating HW-accelerated machine-learning"
-      $STD uv add --no-sync --optional openvino onnxruntime-openvino==1.24.1 --active -n -p "${ML_PYTHON}" --managed-python
+      msg_info "Updating Intel OpenVINO machine-learning"
       for attempt in $(seq 1 3); do
         $STD sudo --preserve-env=VIRTUAL_ENV,UV_HTTP_TIMEOUT -nu immich uv sync --extra openvino --no-dev --active --link-mode copy -n -p "${ML_PYTHON}" --managed-python && break
         [[ $attempt -lt 3 ]] && msg_warn "uv sync attempt $attempt failed, retrying..." && sleep 10
       done
       patchelf --clear-execstack "${VIRTUAL_ENV}/lib/python3.13/site-packages/onnxruntime/capi/onnxruntime_pybind11_state.cpython-313-x86_64-linux-gnu.so"
-      msg_ok "Updated HW-accelerated machine-learning"
+      msg_ok "Updated Intel OpenVINO machine-learning"
     else
       ML_PYTHON="python3.11"
       msg_info "Pre-installing Python ${ML_PYTHON} for machine-learning"

ct/isponsorblocktv.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Matthew Stern (sternma) | MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/dmunozv04/iSponsorBlockTV
+
+APP="iSponsorBlockTV"
+var_tags="${var_tags:-media;automation}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-1024}"
+var_disk="${var_disk:-4}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -d /opt/isponsorblocktv ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  if check_for_gh_release "isponsorblocktv" "dmunozv04/iSponsorBlockTV"; then
+    msg_info "Stopping Service"
+    systemctl stop isponsorblocktv
+    msg_ok "Stopped Service"
+
+    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "isponsorblocktv" "dmunozv04/iSponsorBlockTV" "singlefile" "latest" "/opt/isponsorblocktv" "iSponsorBlockTV-*-linux"
+
+    msg_info "Starting Service"
+    systemctl start isponsorblocktv
+    msg_ok "Started Service"
+    msg_ok "Updated successfully!"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Run the setup wizard inside the container with:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}iSponsorBlockTV setup${CL}"

ct/reactive-resume.sh

@@ -33,6 +33,8 @@ function update_script() {
     systemctl stop reactive-resume
     msg_ok "Stopped services"
 
+    ensure_dependencies git
+
     cp /opt/reactive-resume/.env /opt/reactive-resume.env.bak
     NODE_VERSION="24" setup_nodejs
     CLEAN_INSTALL=1 fetch_and_deploy_gh_release "reactive-resume" "amruthpillai/reactive-resume" "tarball" "latest" "/opt/reactive-resume"

install/alpine-wakapi-install.sh

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Slaviša Arežina (tremor021)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://wakapi.dev/ | https://github.com/muety/wakapi
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing Dependencies"
+$STD apk add --no-cache \
+  ca-certificates \
+  tzdata
+$STD update-ca-certificates
+$STD apk add --no-cache go --repository=https://dl-cdn.alpinelinux.org/alpine/edge/community
+msg_ok "Installed Dependencies"
+
+fetch_and_deploy_gh_release "wakapi" "muety/wakapi" "tarball"
+
+msg_info "Configuring Wakapi"
+LOCAL_IP=$(/sbin/ip -o -4 addr list eth0 | awk '{print $4}' | cut -d/ -f1)
+cd /opt/wakapi
+$STD go mod download
+$STD go build -o wakapi
+cp config.default.yml config.yml
+sed -i 's/listen_ipv6: ::1/listen_ipv6: "-"/g' config.yml
+sed -i 's/listen_ipv4: 127.0.0.1/listen_ipv4: "0.0.0.0"/g' config.yml
+sed -i "s/public_url: http:\/\/localhost:3000/public_url: http:\/\/$LOCAL_IP:3000/g" config.yml
+msg_ok "Configured Wakapi"
+
+msg_info "Enabling Wakapi Service"
+cat <<EOF >/etc/init.d/wakapi
+#!/sbin/openrc-run
+description="Wakapi Service"
+directory="/opt/wakapi"
+command="/opt/wakapi/wakapi"
+command_args="-config config.yml"
+command_background="true"
+command_user="root"
+pidfile="/var/run/wakapi.pid"
+
+depend() {
+    use net
+}
+EOF
+chmod +x /etc/init.d/wakapi
+$STD rc-update add wakapi default
+msg_ok "Enabled Wakapi Service"
+
+msg_info "Starting Wakapi"
+$STD rc-service wakapi start
+msg_ok "Started Wakapi"
+
+motd_ssh
+customize

install/immich-install.sh

@@ -13,41 +13,43 @@ setting_up_container
 network_check
 update_os
 
-if [ -d /dev/dri ]; then
+if lscpu | grep -q 'GenuineIntel'; then
   echo ""
   echo ""
-  echo -e "🤖 ${BL}Immich Machine Learning Options${CL}"
+  echo -e "🤖 ${BL}Immich Machine-Learning Options${CL}"
   echo "─────────────────────────────────────────"
   echo "Please choose your machine-learning type:"
   echo ""
   echo " 1) CPU only (default)"
-  echo " 2) Intel OpenVINO (requires GPU passthrough)"
+  echo " 2) **NEW** Intel OpenVINO CPU or iGPU"
   echo ""
 
   read -r -p "${TAB3}Select machine-learning type [1]: " ML_TYPE
   ML_TYPE="${ML_TYPE:-1}"
   if [[ "$ML_TYPE" == "2" ]]; then
-    msg_info "Installing OpenVINO dependencies"
     touch ~/.openvino
     $STD apt install -y --no-install-recommends patchelf
-    tmp_dir=$(mktemp -d)
-    $STD pushd "$tmp_dir"
-    curl_with_retry "https://raw.githubusercontent.com/immich-app/immich/refs/heads/main/machine-learning/Dockerfile" "Dockerfile"
-    readarray -t INTEL_URLS < <(
-      sed -n "/intel-[igc|opencl]/p" ./Dockerfile | awk '{print $3}'
-      sed -n "/libigdgmm12/p" ./Dockerfile | awk '{print $3}'
-    )
-    for url in "${INTEL_URLS[@]}"; do
-      curl_with_retry "$url" "$(basename "$url")"
-    done
-    $STD apt install -y ./libigdgmm12*.deb
-    rm ./libigdgmm12*.deb
-    $STD apt install -y ./*.deb
-    $STD apt-mark hold libigdgmm12
-    $STD popd
-    rm -rf "$tmp_dir"
-    dpkg-query -W -f='${Version}\n' intel-opencl-icd >~/.intel_version
-    msg_ok "Installed OpenVINO dependencies"
+    if [[ -d /dev/dri ]]; then
+      msg_info "Installing Intel OpenVINO dependencies"
+      tmp_dir=$(mktemp -d)
+      $STD pushd "$tmp_dir"
+      curl_with_retry "https://raw.githubusercontent.com/immich-app/immich/refs/heads/main/machine-learning/Dockerfile" "Dockerfile"
+      readarray -t INTEL_URLS < <(
+        sed -n "/intel-[igc|opencl]/p" ./Dockerfile | awk '{print $3}'
+        sed -n "/libigdgmm12/p" ./Dockerfile | awk '{print $3}'
+      )
+      for url in "${INTEL_URLS[@]}"; do
+        curl_with_retry "$url" "$(basename "$url")"
+      done
+      $STD apt install -y ./libigdgmm12*.deb
+      rm ./libigdgmm12*.deb
+      $STD apt install -y ./*.deb
+      $STD apt-mark hold libigdgmm12
+      $STD popd
+      rm -rf "$tmp_dir"
+      dpkg-query -W -f='${Version}\n' intel-opencl-icd >~/.intel_version
+      msg_ok "Installed Intel OpenVINO dependencies"
+    fi
   fi
 fi
 
@@ -293,7 +295,7 @@ ML_DIR="${APP_DIR}/machine-learning"
 GEO_DIR="${INSTALL_DIR}/geodata"
 mkdir -p {"${APP_DIR}","${UPLOAD_DIR}","${GEO_DIR}","${INSTALL_DIR}"/cache}
 
-fetch_and_deploy_gh_release "Immich" "immich-app/immich" "tarball" "v2.5.6" "$SRC_DIR"
+fetch_and_deploy_gh_release "Immich" "immich-app/immich" "tarball" "v2.6.1" "$SRC_DIR"
 PNPM_VERSION="$(jq -r '.packageManager | split("@")[1] | split("+")[0]' ${SRC_DIR}/package.json)"
 NODE_VERSION="24" NODE_MODULE="pnpm@${PNPM_VERSION}" setup_nodejs
 
@@ -353,14 +355,13 @@ if [[ -f ~/.openvino ]]; then
     [[ $attempt -lt 3 ]] && msg_warn "Python download attempt $attempt failed, retrying..." && sleep 5
   done
   msg_ok "Pre-installed Python ${ML_PYTHON}"
-  msg_info "Installing HW-accelerated machine-learning"
-  $STD uv add --no-sync --optional openvino onnxruntime-openvino==1.24.1 --active -n -p "${ML_PYTHON}" --managed-python
+  msg_info "Installing Intel OpenVINO machine-learning"
   for attempt in $(seq 1 3); do
     $STD sudo --preserve-env=VIRTUAL_ENV,UV_HTTP_TIMEOUT -nu immich uv sync --extra openvino --no-dev --active --link-mode copy -n -p "${ML_PYTHON}" --managed-python && break
     [[ $attempt -lt 3 ]] && msg_warn "uv sync attempt $attempt failed, retrying..." && sleep 10
   done
   patchelf --clear-execstack "${VIRTUAL_ENV}/lib/python3.13/site-packages/onnxruntime/capi/onnxruntime_pybind11_state.cpython-313-x86_64-linux-gnu.so"
-  msg_ok "Installed HW-accelerated machine-learning"
+  msg_ok "Installed Intel OpenVINO machine-learning"
 else
   ML_PYTHON="python3.11"
   msg_info "Pre-installing Python ${ML_PYTHON} for machine-learning"

install/isponsorblocktv-install.sh

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Matthew Stern (sternma) | MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/dmunozv04/iSponsorBlockTV
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+fetch_and_deploy_gh_release "isponsorblocktv" "dmunozv04/iSponsorBlockTV" "singlefile" "latest" "/opt/isponsorblocktv" "iSponsorBlockTV-*-linux"
+
+msg_info "Setting up iSponsorBlockTV"
+install -d /var/lib/isponsorblocktv
+msg_ok "Set up iSponsorBlockTV"
+
+msg_info "Creating Service"
+cat <<EOF >/etc/systemd/system/isponsorblocktv.service
+[Unit]
+Description=iSponsorBlockTV
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=root
+Group=root
+Environment=iSPBTV_data_dir=/var/lib/isponsorblocktv
+ExecStart=/opt/isponsorblocktv/isponsorblocktv
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl enable -q isponsorblocktv
+msg_ok "Created Service"
+
+msg_info "Creating CLI wrapper"
+cat <<EOF >/usr/local/bin/iSponsorBlockTV
+#!/usr/bin/env bash
+export iSPBTV_data_dir="/var/lib/isponsorblocktv"
+
+set +e
+/opt/isponsorblocktv/isponsorblocktv "$@"
+status=$?
+set -e
+
+case "${1:-}" in
+  setup|setup-cli)
+    systemctl restart isponsorblocktv >/dev/null 2>&1 || true
+    ;;
+esac
+
+exit $status
+EOF
+chmod +x /usr/local/bin/iSponsorBlockTV
+ln -sf /usr/local/bin/iSponsorBlockTV /usr/bin/iSponsorBlockTV
+msg_ok "Created CLI wrapper"
+
+motd_ssh
+customize
+cleanup_lxc

install/reactive-resume-install.sh

@@ -18,7 +18,9 @@ PG_DB_NAME="reactive_resume" PG_DB_USER="reactive_resume" setup_postgresql_db
 NODE_VERSION="24" setup_nodejs
 
 msg_info "Installing Dependencies"
-$STD apt install -y chromium
+$STD apt install -y \
+  chromium \
+  git
 msg_ok "Installed Dependencies"
 
 fetch_and_deploy_gh_release "reactive-resume" "amruthpillai/reactive-resume" "tarball"

tools/addon/coder-code-server.sh

@@ -89,26 +89,31 @@ VERSION=$(curl -fsSL https://api.github.com/repos/coder/code-server/releases/lat
   awk '{print substr($2, 3, length($2)-4) }')
 
 msg_info "Installing Code-Server v${VERSION}"
+config_path="${HOME}/.config/code-server/config.yaml"
+preexisting_config=false
 
-if [ -f ~/.config/code-server/config.yaml ]; then
-  existing_config=true
+if [ -f "$config_path" ]; then
+  preexisting_config=true
 fi
 
 curl -fOL https://github.com/coder/code-server/releases/download/v"$VERSION"/code-server_"${VERSION}"_amd64.deb &>/dev/null
 dpkg -i code-server_"${VERSION}"_amd64.deb &>/dev/null
 rm -rf code-server_"${VERSION}"_amd64.deb
-mkdir -p ~/.config/code-server/
-systemctl enable -q --now code-server@"$USER"
+mkdir -p "${HOME}/.config/code-server/"
 
-if [ $existing_config = false ]; then
-cat <<EOF >~/.config/code-server/config.yaml
+if [ "$preexisting_config" = false ]; then
+cat <<EOF >"$config_path"
 bind-addr: 0.0.0.0:8680
 auth: none
 password: 
 cert: false
 EOF
 fi
+systemctl enable -q --now code-server@"$USER"
 systemctl restart code-server@"$USER"
+if ! systemctl is-active --quiet code-server@"$USER"; then
+  error_exit "code-server service failed to start."
+fi
 msg_ok "Installed Code-Server v${VERSION} on $hostname"
 
 echo -e "${APP} should be reachable by going to the following URL.

vm/archlinux-vm.sh

@@ -310,7 +310,10 @@ function advanced_settings() {
       HN="arch-linux"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo "${VM_NAME,,}" | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -332,27 +335,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$CORE_COUNT" ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$RAM_SIZE" ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z "$BRG" ]; then
@@ -365,43 +372,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 "$GEN_MAC" --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$MAC1" ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 "$GEN_MAC" --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$VLAN1" ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$MTU1" ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/debian-13-vm.sh

@@ -325,7 +325,10 @@ function advanced_settings() {
       HN="debian"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo "${VM_NAME,,}" | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -347,27 +350,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$CORE_COUNT" ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$RAM_SIZE" ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z "$BRG" ]; then
@@ -380,43 +387,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 "$GEN_MAC" --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$MAC1" ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 "$GEN_MAC" --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$VLAN1" ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$MTU1" ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   select_cloud_init
 

vm/debian-vm.sh

@@ -315,7 +315,10 @@ function advanced_settings() {
       HN="debian"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -337,27 +340,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -370,43 +377,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "CLOUD-INIT" --yesno "Configure the VM with Cloud-init?" --defaultno 10 58); then
     echo -e "${CLOUD}${BOLD}${DGN}Configure Cloud-init: ${BGN}yes${CL}"

vm/docker-vm.sh

@@ -251,7 +251,10 @@ function advanced_settings() {
     if [ -z $VM_NAME ]; then
       HN="docker"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
     fi
     echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
   else
@@ -275,24 +278,32 @@ function advanced_settings() {
   fi
 
   # CPU Cores
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
+    else
+      exit_script
     fi
-    echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
-  else
-    exit_script
-  fi
+  done
 
   # RAM Size
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 4096 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="4096"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 4096 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="4096"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 4096)." 8 58
+    else
+      exit_script
     fi
-    echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
-  else
-    exit_script
-  fi
+  done
 
   # Bridge
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
@@ -305,42 +316,63 @@ function advanced_settings() {
   fi
 
   # MAC Address
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
+      exit_script
     fi
-    echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
-  else
-    exit_script
-  fi
+  done
 
   # VLAN
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan (leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan (leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
+      exit_script
     fi
-    echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
-  else
-    exit_script
-  fi
+  done
 
   # MTU
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
+      exit_script
     fi
-    echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
-  else
-    exit_script
-  fi
+  done
 
   # Start VM
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then

vm/haos-vm.sh

@@ -391,7 +391,10 @@ function advanced_settings() {
       HN="haos${BRANCH}"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -416,27 +419,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="4096"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="4096"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 4096)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -449,43 +456,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/mikrotik-routeros.sh

@@ -377,7 +377,10 @@ function advanced_settings() {
       HN="mikrotik-routeros-chr"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -399,27 +402,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -432,43 +439,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/nextcloud-vm.sh

@@ -313,7 +313,10 @@ function advanced_settings() {
       HN="nextcloud-vm"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -335,27 +338,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -368,43 +375,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/openwrt-vm.sh

@@ -328,30 +328,41 @@ function advanced_settings() {
     if [ -z $VM_NAME ]; then
       HN="openwrt"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
     fi
     echo -e "${DGN}Using Hostname: ${BGN}$HN${CL}"
   else
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 1 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="1"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 1 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="1"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 1)." 8 58
+    else
+      exit-script
     fi
-    echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 256 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="256"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 256 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="256"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 256)." 8 58
+    else
+      exit-script
     fi
-    echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"
-  else
-    exit-script
-  fi
+  done
 
   if DISK_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" \
     --inputbox "Set Disk Size in GiB (e.g., 1, 2, 4)" 8 58 "1" \
@@ -422,41 +433,62 @@ function advanced_settings() {
     exit-script
   fi
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a WAN Vlan (leave blank for default)" 8 58 --title "WAN VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a WAN Vlan (leave blank for default)" 8 58 --title "WAN VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${DGN}Using WAN Vlan: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${DGN}Using WAN Vlan: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
+      exit-script
     fi
-    echo -e "${DGN}Using WAN Vlan: ${BGN}$VLAN1${CL}"
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN2=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a LAN Vlan" 8 58 999 --title "LAN VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN2 ]; then
-      VLAN2="Default"
-      LAN_VLAN=""
+  while true; do
+    if VLAN2=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a LAN Vlan" 8 58 999 --title "LAN VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN2" ]; then
+        VLAN2="Default"
+        LAN_VLAN=""
+        echo -e "${DGN}Using LAN Vlan: ${BGN}$VLAN2${CL}"
+        break
+      fi
+      if [[ "$VLAN2" =~ ^[0-9]+$ ]] && [ "$VLAN2" -ge 1 ] && [ "$VLAN2" -le 4094 ]; then
+        LAN_VLAN=",tag=$VLAN2"
+        echo -e "${DGN}Using LAN Vlan: ${BGN}$VLAN2${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      LAN_VLAN=",tag=$VLAN2"
+      exit-script
     fi
-    echo -e "${DGN}Using LAN Vlan: ${BGN}$VLAN2${CL}"
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
+      exit-script
     fi
-    echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     START_VM="yes"

vm/opnsense-vm.sh

@@ -421,30 +421,41 @@ function advanced_settings() {
     if [ -z "$VM_NAME" ]; then
       HN="OPNsense"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
     fi
     echo -e "${DGN}Using Hostname: ${BGN}$HN${CL}"
   else
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 4 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z "$CORE_COUNT" ]; then
-      CORE_COUNT="2"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 4 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="4"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 4)." 8 58
+    else
+      exit-script
     fi
-    echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 8192 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="8192"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 8192 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="8192"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 8192)." 8 58
+    else
+      exit-script
     fi
-    echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a LAN Bridge" 8 58 vmbr0 --title "LAN BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then

vm/owncloud-vm.sh

@@ -314,7 +314,10 @@ function advanced_settings() {
       HN="owncloud-vm"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -336,27 +339,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -369,43 +376,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/pimox-haos-vm.sh

@@ -274,26 +274,35 @@ function advanced_settings() {
     echo -e "${DGN}Using Hostname: ${BGN}$HN${CL}"
   else
     if [ $exitstatus = 0 ]; then
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${DGN}Using Hostname: ${BGN}$HN${CL}"
     fi
   fi
-  CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
-  exitstatus=$?
-  if [ -z $CORE_COUNT ]; then
-    CORE_COUNT="2"
-    echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"
-  else
-    if [ $exitstatus = 0 ]; then echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"; fi
-  fi
-  RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 4096 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
-  exitstatus=$?
-  if [ -z $RAM_SIZE ]; then
-    RAM_SIZE="4096"
-    echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"
-  else
-    if [ $exitstatus = 0 ]; then echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"; fi
-  fi
+  while true; do
+    CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+    exitstatus=$?
+    if [ $exitstatus -ne 0 ]; then exit-script; fi
+    if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+    if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+      echo -e "${DGN}Allocated Cores: ${BGN}$CORE_COUNT${CL}"
+      break
+    fi
+    whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
+  done
+  while true; do
+    RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 4096 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+    exitstatus=$?
+    if [ $exitstatus -ne 0 ]; then exit-script; fi
+    if [ -z "$RAM_SIZE" ]; then RAM_SIZE="4096"; fi
+    if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+      echo -e "${DGN}Allocated RAM: ${BGN}$RAM_SIZE${CL}"
+      break
+    fi
+    whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 4096)." 8 58
+  done
   BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ -z $BRG ]; then
@@ -302,39 +311,56 @@ function advanced_settings() {
   else
     if [ $exitstatus = 0 ]; then echo -e "${DGN}Using Bridge: ${BGN}$BRG${CL}"; fi
   fi
-  MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
-  exitstatus=$?
-  if [ -z $MAC1 ]; then
-    MAC="$GEN_MAC"
-    echo -e "${DGN}Using MAC Address: ${BGN}$MAC${CL}"
-  else
-    if [ $exitstatus = 0 ]; then
+  while true; do
+    MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+    exitstatus=$?
+    if [ $exitstatus -ne 0 ]; then exit-script; fi
+    if [ -z "$MAC1" ]; then
+      MAC="$GEN_MAC"
+      echo -e "${DGN}Using MAC Address: ${BGN}$MAC${CL}"
+      break
+    fi
+    if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
       MAC="$MAC1"
       echo -e "${DGN}Using MAC Address: ${BGN}$MAC1${CL}"
+      break
     fi
-  fi
-  VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
-  exitstatus=$?
-  if [ $exitstatus = 0 ]; then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default" VLAN=""
+    whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
+  done
+  while true; do
+    VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+    exitstatus=$?
+    if [ $exitstatus -ne 0 ]; then exit-script; fi
+    if [ -z "$VLAN1" ]; then
+      VLAN1="Default"
+      VLAN=""
       echo -e "${DGN}Using Vlan: ${BGN}$VLAN1${CL}"
-    else
+      break
+    fi
+    if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
       VLAN=",tag=$VLAN1"
       echo -e "${DGN}Using Vlan: ${BGN}$VLAN1${CL}"
+      break
     fi
-  fi
-  MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
-  exitstatus=$?
-  if [ $exitstatus = 0 ]; then
-    if [ -z $MTU1 ]; then
-      MTU1="Default" MTU=""
+    whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
+  done
+  while true; do
+    MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+    exitstatus=$?
+    if [ $exitstatus -ne 0 ]; then exit-script; fi
+    if [ -z "$MTU1" ]; then
+      MTU1="Default"
+      MTU=""
       echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
-    else
+      break
+    fi
+    if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
       MTU=",mtu=$MTU1"
       echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+      break
     fi
-  fi
+    whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
+  done
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${DGN}Start VM when completed: ${BGN}yes${CL}"
     START_VM="yes"

vm/truenas-vm.sh

@@ -355,7 +355,10 @@ function advanced_settings() {
     if [ -z $VM_NAME ]; then
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -380,27 +383,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 "$CORE_COUNT" --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 "$CORE_COUNT" --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 "$RAM_SIZE" --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="8192"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 "$RAM_SIZE" --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="8192"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 8192)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 "$BRG" --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -413,43 +420,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --defaultno --title "IMPORT ONBOARD DISKS" --yesno "Would you like to import onboard disks?" 10 58); then
     echo -e "${DISK}${BOLD}${DGN}Import onboard disks: ${BGN}yes${CL}"

vm/ubuntu2204-vm.sh

@@ -310,7 +310,10 @@ function advanced_settings() {
       HN="ubuntu"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -332,27 +335,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -365,43 +372,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/ubuntu2404-vm.sh

@@ -313,7 +313,10 @@ function advanced_settings() {
       HN="ubuntu"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -335,27 +338,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -368,43 +375,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/ubuntu2504-vm.sh

@@ -312,7 +312,10 @@ function advanced_settings() {
       HN="ubuntu"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -334,27 +337,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -367,43 +374,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"

vm/umbrel-os-vm.sh

@@ -373,7 +373,10 @@ function advanced_settings() {
       HN="umbrelos"
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     else
-      HN=$(echo ${VM_NAME,,} | tr -d ' ')
+      HN=$(echo "${VM_NAME,,}" | tr -cs 'a-z0-9-' '-' | sed 's/^-//;s/-$//')
+      if [ "$HN" != "${VM_NAME,,}" ]; then
+        whiptail --backtitle "Proxmox VE Helper Scripts" --title "HOSTNAME ADJUSTED" --msgbox "Invalid characters detected. Hostname has been adjusted to:\n\n  $HN" 10 58
+      fi
       echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
     fi
   else
@@ -398,27 +401,31 @@ function advanced_settings() {
     exit-script
   fi
 
-  if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $CORE_COUNT ]; then
-      CORE_COUNT="2"
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+  while true; do
+    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 2 --title "CORE COUNT" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$CORE_COUNT" ]; then CORE_COUNT="2"; fi
+      if [[ "$CORE_COUNT" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "CPU Cores must be a positive integer (e.g., 2)." 8 58
     else
-      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $RAM_SIZE ]; then
-      RAM_SIZE="2048"
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+  while true; do
+    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 2048 --title "RAM" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$RAM_SIZE" ]; then RAM_SIZE="2048"; fi
+      if [[ "$RAM_SIZE" =~ ^[1-9][0-9]*$ ]]; then
+        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "RAM Size must be a positive integer in MiB (e.g., 2048)." 8 58
     else
-      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}$RAM_SIZE${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Bridge" 8 58 vmbr0 --title "BRIDGE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $BRG ]; then
@@ -431,43 +438,61 @@ function advanced_settings() {
     exit-script
   fi
 
-  if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MAC1 ]; then
-      MAC="$GEN_MAC"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+  while true; do
+    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address" 8 58 $GEN_MAC --title "MAC ADDRESS" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MAC1" ]; then
+        MAC="$GEN_MAC"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC${CL}"
+        break
+      fi
+      if [[ "$MAC1" =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]]; then
+        MAC="$MAC1"
+        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "Invalid MAC address format. Use XX:XX:XX:XX:XX:XX (e.g., AA:BB:CC:DD:EE:FF)." 8 58
     else
-      MAC="$MAC1"
-      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $VLAN1 ]; then
-      VLAN1="Default"
-      VLAN=""
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+  while true; do
+    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for default)" 8 58 --title "VLAN" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$VLAN1" ]; then
+        VLAN1="Default"
+        VLAN=""
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      if [[ "$VLAN1" =~ ^[0-9]+$ ]] && [ "$VLAN1" -ge 1 ] && [ "$VLAN1" -le 4094 ]; then
+        VLAN=",tag=$VLAN1"
+        echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "VLAN must be a number between 1 and 4094, or leave blank for default." 8 58
     else
-      VLAN=",tag=$VLAN1"
-      echo -e "${VLANTAG}${BOLD}${DGN}VLAN: ${BGN}$VLAN1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
-  if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
-    if [ -z $MTU1 ]; then
-      MTU1="Default"
-      MTU=""
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+  while true; do
+    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+      if [ -z "$MTU1" ]; then
+        MTU1="Default"
+        MTU=""
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      if [[ "$MTU1" =~ ^[0-9]+$ ]] && [ "$MTU1" -ge 576 ] && [ "$MTU1" -le 65520 ]; then
+        MTU=",mtu=$MTU1"
+        echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+        break
+      fi
+      whiptail --backtitle "Proxmox VE Helper Scripts" --title "INVALID INPUT" --msgbox "MTU Size must be a number between 576 and 65520, or leave blank for default." 8 58
     else
-      MTU=",mtu=$MTU1"
-      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
+      exit-script
     fi
-  else
-    exit-script
-  fi
+  done
 
   if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "START VIRTUAL MACHINE" --yesno "Start VM when completed?" 10 58); then
     echo -e "${GATEWAY}${BOLD}${DGN}Start VM when completed: ${BGN}yes${CL}"