DevOps & Cloud
Risk: Medium
Port 514 — Syslog Event Logging
Port 514 is the traditional UDP port for Syslog daemons (rsyslog, syslog-ng), collecting centralized security events, system alerts, and audit logs from network devices.
PORT NUMBER
514
PROTOCOL
UDP
DEFAULT PROCESS
rsyslogd, syslog-ng
FIREWALL TARGET
514/udp
Instant Terminal Fixes for Port 514
macOS & Linux Terminal
1. Check who is listening on port 514:
sudo ss -ulpn | grep ":514 "2. Kill process occupying port 514 (EADDRINUSE fix):
sudo systemctl stop rsyslog3. UFW Firewall Allow rule:
sudo ufw allow from 10.0.0.0/8 to any port 514 proto udpWindows PowerShell (Admin)
1. Check listening port:
Get-NetUDPEndpoint -LocalPort 5142. Force kill process on port 514:
Stop-Service Syslog -Force -ErrorAction SilentlyContinue3. Docker Port Forwarding Mapping:
docker run -d -p 514:514/udp -v /var/log:/var/log balabit/syslog-ng:latestCommon Error Encountered
rsyslogd: bind() error on port 514: Address already in use.
Security Advisory & Hardening
Standard UDP syslog does not verify sender identity or encrypt log content. For sensitive compliance data, use Syslog over TLS (RFC 5425, port 6514).
Frequently Asked Questions
Port 514 Questions & Answers
Common questions regarding default services, kill commands, and firewall configurations.
Port 514 is commonly used for Syslog Event Logging. Port 514 is the traditional UDP port for Syslog daemons (rsyslog, syslog-ng), collecting centralized security events, system alerts, and audit logs from network devices.