root@mail:~# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
           tcp  --  anywhere             anywhere            tcp dpt:ssh state NEW recent: SET name: SSH side: source
SSH_WHITELIST  tcp  --  anywhere             anywhere            tcp dpt:ssh state NEW
LOG        tcp  --  anywhere             anywhere            tcp dpt:ssh state NEW recent: UPDATE seconds: 60 hit_count: 4 TTL-Match name: SSH side: source limit: avg 2/sec burst 5 LOG level warning prefix `SSH_brute_force:'
DROP       tcp  --  anywhere             anywhere            tcp dpt:ssh state NEW recent: UPDATE seconds: 60 hit_count: 4 TTL-Match name: SSH side: source

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain SSHSCAN (0 references)
target     prot opt source               destination

Chain SSH_WHITELIST (1 references)
target     prot opt source               destination
ACCEPT     all  --  localhost.localdomain  anywhere            recent: REMOVE name: SSH side: source
root@mail:~#