Checking Fail2ban regex

I’ve just stumbled across a great command in Fail2ban to check whether or not your filter will actually score a hit from your log file. From the command line. [code lang=bash] $ fail2ban-regex /path/to/logfile /etc/fail2ban/filter.d/myfilter.conf regex_to_ignore [/code] As an example. [code lang=bash] $ fail2ban-regex /var/log/secure.log /etc/fail2ban/filter.d/sshd.conf (myusername|myIPaddress) [/code] This seems like a great way to … Read more