[CentOS] [OT] odd network question

> 
> I've found the default 10min bans hardly bother some attackers.
> So I've added the "recidive" feature of fail2ban.  After the
> second 10min ban, the attacker is blocked for 1 week.
> 

Oh definitely. My systems are set to "3 bans and you're out" - a
recidive ban is permanent after three other bans.  I have large parts
of some subnets in my ban list as attackers just move from one host to
another as they get banned.

P.