iptables --listChain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh state NEW limit: up to 1/hour burst 2 mode srcip htable-expire 60000
DROP       tcp  --  anywhere             anywhere            tcp dpt:ssh flags:SYN,RST,ACK/SYN
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:ssh

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination


auth.log: всёравно много таких:
sshd[13863]: Failed password for root from 222.169.127.22 port 43171 ssh2