The IP 146.137.70.5 has just been banned by Fail2Ban after 19 attempts against SSH. Latest lines containing IP:146.137.70.5 in /var/log/syslog/sshd.log Jun 8 03:09:35 ftlogin1 sshd[1141]: Failed keyboard-interactive/pam for invalid user emailswitch from 146.137.70.5 port 53647 ssh2 Jun 8 03:09:35 ftlogin1 sshd[1160]: Invalid user guest from 146.137.70.5 Jun 8 03:09:35 ftlogin1 sshd[1163]: Postponed keyboard-interactive for invalid user guest from 146.137.70.5 port 54456 ssh2 Jun 8 03:09:37 ftlogin1 sshd[1160]: error: PAM: User not known to the underlying authentication module for illegal user guest from 146.137.70.5 Jun 8 03:09:37 ftlogin1 sshd[1160]: Failed keyboard-interactive/pam for invalid user guest from 146.137.70.5 port 54456 ssh2 Jun 8 03:09:37 ftlogin1 sshd[1169]: Invalid user TXoRL_31 from 146.137.70.5 Jun 8 03:09:37 ftlogin1 sshd[1172]: Invalid user product from 146.137.70.5 Jun 8 03:09:37 ftlogin1 sshd[1179]: Postponed keyboard-interactive for invalid user product from 146.137.70.5 port 54738 ssh2 Jun 8 03:09:38 ftlogin1 sshd[1172]: error: PAM: User not known to the underlying authentication module for illegal user product from 146.137.70.5 Jun 8 03:09:38 ftlogin1 sshd[1172]: Failed keyboard-interactive/pam for invalid user product from 146.137.70.5 port 54738 ssh2 - Fail2ban on