I have a vps setup with simple fail2ban settings to keep from brute force attacks. However in my tcptrack monitor I see an IP that establishes several connections to my server. The TCPTrack shows that the ip address is "ESTABLISHED" through port 22.
The address 184.108.40.206 is shown several times with an established connection. I have tried to ban this ip address with:
/sbin/iptables -A INPUT -s 220.127.116.11 -j DROP
But it still shows up in tcptrack after I reset the server. I looked up this address in iplookup and it's an ip address from china. Not sure how to handle this intrusion. Any help would be appreciated.