I see in some older (2013) threads referencing using CSF instead of Fail2Ban. Did anything come of that? I am having problems with Fail2Ban lately refusing to start on a couple of systems for no apparent reason. If CSF was available I thought I would try that.
CSF has a very restrictive license that doesn’t allow it to be independently distributed. So we cannot include it as a module or package. It is not hard to install it simply can’t be released by us.