I'm still running on 23 here. Mystic has the ability to auto block
IP addresses that try to connect multiple times within a set amount
of time. It adds them to a blacklist file, which it checks every
time someone tries connecting. Right now, that file is listing
45,860 different IP addresses on my system...
Much the same theory as fail2ban, although probably more effective then my implementatio is...
Spec
--- --- SuperBBS v1.17-3 (Eval)
* Origin: <Shoot'n the breeze on The Lower Planes> (21:3/105)