Log Files

When troubleshooting problems with your firewall, it is very likely you have to check the logs available on your system. In the UI of OPNsense, the log files are generally grouped with the settings of the component they belong to. The log files can be found here:

System Log System ‣ Log Files ‣ General Most of all system related events go here
Backend / config daemon System ‣ Log Files ‣ Backend Here you can find logs for config generation of API usage
Web GUI System ‣ Log Files ‣ Web GUI Lighttpd, the webserver of OPNsense itself, logs here
Firmware System ‣ Firmware ‣ Log File Updates from the packaging system go here
Gateways System ‣ Gateways ‣ Log File Lists Dpinger gateway tracking related log messages
Routing System ‣ Routes ‣ Log File Routing changes or interface events

Note

Log files on file system: /var/log/system.log (clog) /var/log/configd.log (clog) /var/log/lighttpd.log (clog) /var/log/pkg.log (clog) /var/log/gateways.log (clog) Note: By default gateway monitoring is disabled, so the log will be empty. /var/log/routing.log (clog)