Fail2ban

fail2Ban
Prevent Brute Force Attacks with Fail2Ban


 * bantime: Time in seconds that a host is blocked if it was caught by fail2ban (600 seconds = 10 minutes).

Remove Entry
Find entry: iptables -L iptables -L -n

Clear entry: iptables -D fail2ban-ssh -s [address] -j DROP

This is only temporary, and will be re-added when fail2ban is restarted

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List all jails: fail2ban-client status

List entries in jail: fail2ban-client status [jail] fail2ban-client status ssh

Unban an entry: fail2ban-client get ssh actionunban [address]   # note this does not appear to work for me!

firewall - How to Unban an IP properly with Fail2Ban - Server Fault - http://serverfault.com/questions/285256/how-to-unban-an-ip-properly-with-fail2ban

Whitelist
[DEFAULT] ignoreip = 127.0.0.1 192.168.1.0/24 8.8.8.8
 * 1) "ignoreip" can be an IP address, a CIDR mask or a DNS host. Fail2ban will not
 * 2) ban a host which matches an address in this list. Several addresses can be
 * 3) defined using space separator.

Whitelist - Fail2ban - http://www.fail2ban.org/wiki/index.php/Whitelist

keywords
fail2ban Fail2Ban FAIL2BAN