The IP 144.0.0.22 has just been banned by Fail2Ban after 18 attempts against SSH. Latest lines containing IP:144.0.0.22 in /var/log/syslog/sshd.log Sep 18 19:02:28 ftlogin2 sshd[11314]: error: PAM: Authentication failure for root from 144.0.0.22 Sep 18 19:02:28 ftlogin2 sshd[11314]: Failed keyboard-interactive/pam for root from 144.0.0.22 port 39366 ssh2 Sep 18 19:02:28 ftlogin2 sshd[11398]: Postponed keyboard-interactive for root from 144.0.0.22 port 39366 ssh2 Sep 18 19:02:31 ftlogin2 sshd[11314]: error: PAM: Authentication failure for root from 144.0.0.22 Sep 18 19:02:31 ftlogin2 sshd[11314]: Failed keyboard-interactive/pam for root from 144.0.0.22 port 39366 ssh2 Sep 18 19:02:36 ftlogin2 sshd[11438]: error: PAM: Authentication failure for root from 144.0.0.22 Sep 18 19:02:37 ftlogin2 sshd[11441]: Postponed keyboard-interactive for root from 144.0.0.22 port 40177 ssh2 Sep 18 19:02:38 ftlogin2 sshd[11438]: error: PAM: Authentication failure for root from 144.0.0.22 Sep 18 19:02:38 ftlogin2 sshd[11438]: Failed keyboard-interactive/pam for root from 144.0.0.22 port 40177 ssh2 Sep 18 19:02:39 ftlogin2 sshd[11441]: Postponed keyboard-interactive for root from 144.0.0.22 port 40177 ssh2 - Fail2ban on