The IP 183.136.216.4 has just been banned by Fail2Ban after 18 attempts against SSH. Latest lines containing IP:183.136.216.4 in /var/log/syslog/sshd.log Jan 24 13:18:14 ftlogin1 sshd[32713]: Postponed keyboard-interactive for root from 183.136.216.4 port 40735 ssh2 Jan 24 13:18:16 ftlogin1 sshd[32710]: error: PAM: Authentication failure for root from 183.136.216.4 Jan 24 13:18:16 ftlogin1 sshd[32710]: Failed keyboard-interactive/pam for root from 183.136.216.4 port 40735 ssh2 Jan 24 13:18:16 ftlogin1 sshd[32713]: Postponed keyboard-interactive for root from 183.136.216.4 port 40735 ssh2 Jan 24 13:18:17 ftlogin1 sshd[32710]: error: PAM: Authentication failure for root from 183.136.216.4 Jan 24 13:18:17 ftlogin1 sshd[32710]: Failed keyboard-interactive/pam for root from 183.136.216.4 port 40735 ssh2 Jan 24 13:18:22 ftlogin1 sshd[32717]: error: PAM: Authentication failure for root from 183.136.216.4 Jan 24 13:18:22 ftlogin1 sshd[32720]: Postponed keyboard-interactive for root from 183.136.216.4 port 59179 ssh2 Jan 24 13:18:23 ftlogin1 sshd[32717]: error: PAM: Authentication failure for root from 183.136.216.4 Jan 24 13:18:23 ftlogin1 sshd[32717]: Failed keyboard-interactive/pam for root from 183.136.216.4 port 59179 ssh2 - Fail2ban on