{{tag>firewall logging network}}

====== Shorewall custom logging ======
===== Custom log file =====

To log events created by Shorewall in a custom file called “firewall.log” in /var/log directory first edit the /etc/shorewall/shorewall.conf file. Edit this line:

  LOGFILE=/var/log/firewall.log

Actual logging is managed by rsyslog daemon. Create a new file called “firewall.conf” in /etc/rsyslog.d/ and add this:
==== Debian 7 & 8 ====

  :msg, contains, "Shorewall:" -/var/log/firewall.log
  & ~

==== Debian 9 ====

From new version of rsyslog (8.4.2, on Debian 9) use "stop" instead of tilda:

  :msg, contains, "Shorewall:" -/var/log/firewall.log
  & stop

Now restart rsyslog service and shorewall
===== Set up firewall.log rotation =====

Create the file /etc/logrotate.d/firewall and put this in it:

<code>
/var/log/firewall.log {
        rotate 4
        weekly
        missingok
        notifempty
        delaycompress
        compress
}
</code>
Don't forget to check if startup is enabled in /etc/default/shorewall[6] 

====== Tested on ======
  * Debian 9,10

====== See also ======
  * [[wiki:Prevent programm from logging to daemon.log]]