From 143a973f4ff7d66a21bd7bbe5bfeeb9ef5f56f9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?N=C3=ADcolas=20Pastorello?= <nicolaspastorello1@gmail.com>
Date: Thu, 29 Oct 2026 13:31:39 -0300
Subject: [PATCH] fix(victorialogs): enable syslog ingestion on TCP/UDP 514
 (#18300)

VictoriaLogs only accepts syslog when -syslog.listenAddr.tcp/udp are set,
so network gear that ships logs over syslog (UniFi, firewalls, switches)
had nowhere to send them. Add both listeners to the service and migrate
existing installs on update.
---
 ct/victorialogs.sh              | 10 ++++++++++
 install/victorialogs-install.sh |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/ct/victorialogs.sh b/ct/victorialogs.sh
index ec3cc6198..b1d596d20 100644
--- a/ct/victorialogs.sh
+++ b/ct/victorialogs.sh
@@ -32,6 +32,14 @@ function update_script() {
     exit
   fi
 
+  if ! grep -q -- '-syslog.listenAddr' /etc/systemd/system/victorialogs.service; then
+    msg_info "Enabling Syslog Ingestion"
+    sed -i '/^ExecStart=/ s|$| -syslog.listenAddr.tcp=:514 -syslog.listenAddr.udp=:514|' /etc/systemd/system/victorialogs.service
+    systemctl daemon-reload
+    systemctl restart victorialogs
+    msg_ok "Enabled Syslog Ingestion (TCP/UDP 514)"
+  fi
+
   if check_for_gh_release "victorialogs" "VictoriaMetrics/VictoriaLogs"; then
     msg_info "Stopping Service"
     systemctl stop victorialogs
@@ -56,3 +64,5 @@ msg_ok "Completed Successfully!\n"
 echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
 echo -e "${INFO}${YW}Access it using the following URL:${CL}"
 echo -e "${GATEWAY}${BGN}http://${IP}:9428${CL}"
+echo -e "${INFO}${YW}Syslog ingestion (TCP/UDP):${CL}"
+echo -e "${GATEWAY}${BGN}${IP}:514${CL}"
diff --git a/install/victorialogs-install.sh b/install/victorialogs-install.sh
index b8d06d664..a8b63812c 100644
--- a/install/victorialogs-install.sh
+++ b/install/victorialogs-install.sh
@@ -27,7 +27,7 @@ After=network.target
 Type=simple
 User=root
 WorkingDirectory=/opt/victorialogs
-ExecStart=/opt/victorialogs/victoria-logs-prod -storageDataPath=/opt/victorialogs_data -httpListenAddr=:9428
+ExecStart=/opt/victorialogs/victoria-logs-prod -storageDataPath=/opt/victorialogs_data -httpListenAddr=:9428 -syslog.listenAddr.tcp=:514 -syslog.listenAddr.udp=:514
 Restart=on-failure
 RestartSec=5