Viewing Fail2Ban reports in Logwatch (RESOLVED)

OS type and version: CentOS Linux 7.9.2009

Webmin version: 1.981
Virtualmin version: 6.17 Pro

Just a heads-up in case anyone else searches for this at any time.

I have expanded the usage of the default installation of Fail2Ban which, although the automatically installed version worked well, I wanted to tweak it. But that is not what this post is about.

I wanted to see the number of bans and unbans without having to go and look at the logs directly (which is pretty low value really) so I investigated getting Logwatch to report these figures. It seems that Logwatch was/is intended to report but it isn’t doing so. After much digging and googling I found this page How can I enable fail2ban and mod_secure logs to appear in logwatch on centos 6.4? - Unix & Linux Stack Exchange from 7 years ago which held the answer as follows:

Edit /usr/share/logwatch/scripts/services/fail2ban on line 81 and perform the following

Replace this

} elsif ( my ($Service,$Action,$Host) = ($ThisLine =~ m/WARNING:?\s\[?(.*?)[]:]?\s(Ban|Unban)[^\.]* (\S+)/)) {

With this

} elsif ( my ($Service,$Action,$Host) = ($ThisLine =~ m/NOTICE:?\s+\[?(.*?)[]:]?\s(Ban|Unban)[^\.]* (\S+)/)) {

It works for me so maybe others might also benefit.

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