The IP 115.239.228.4 has just been banned by Fail2Ban after 18 attempts against SSH. Latest lines containing IP:115.239.228.4 in /var/log/syslog/sshd.log Jan 25 19:19:07 ftlogin1 sshd[18699]: error: PAM: Authentication failure for root from 115.239.228.4 Jan 25 19:19:07 ftlogin1 sshd[18699]: Failed keyboard-interactive/pam for root from 115.239.228.4 port 43615 ssh2 Jan 25 19:19:08 ftlogin1 sshd[18702]: Postponed keyboard-interactive for root from 115.239.228.4 port 43615 ssh2 Jan 25 19:19:09 ftlogin1 sshd[18699]: error: PAM: Authentication failure for root from 115.239.228.4 Jan 25 19:19:09 ftlogin1 sshd[18699]: Failed keyboard-interactive/pam for root from 115.239.228.4 port 43615 ssh2 Jan 25 19:19:13 ftlogin1 sshd[18706]: error: PAM: Authentication failure for root from 115.239.228.4 Jan 25 19:19:13 ftlogin1 sshd[18709]: Postponed keyboard-interactive for root from 115.239.228.4 port 32993 ssh2 Jan 25 19:19:14 ftlogin1 sshd[18706]: error: PAM: Authentication failure for root from 115.239.228.4 Jan 25 19:19:14 ftlogin1 sshd[18706]: Failed keyboard-interactive/pam for root from 115.239.228.4 port 32993 ssh2 Jan 25 19:19:15 ftlogin1 sshd[18709]: Postponed keyboard-interactive for root from 115.239.228.4 port 32993 ssh2 - Fail2ban on