environment gentoo
problem error message on boot ebda is big kernel setup stack overlaps lilo
solution mount using gentoo live cd, mount proc, mount root, mount boot, chroot, /sbin/lilo *done*
environment gentoo, fail2ban >0.8
problem drop ip packets from host that failed to authenticate via ssh
solution
1. emerge fail2ban
2. edit /etc/fail2ban/jail.conf
Look for [ssh-iptables] and fix:
enabled = true logpath = /var/log/messages
If you want emails, fix 'dest='.
debugging/monitoring
Nice summary
/usr/bin/fail2ban-client status ssh-iptables