Jun 25 04:58:34 nunchi sshd[11046]: Invalid user dev from 190.211.141.217 port 23700
Jun 25 04:58:34 nunchi sshd[11046]: input_userauth_request: invalid user dev [preauth]
Jun 25 04:58:34 nunchi sshd[11046]: pam_unix(sshd:auth): check pass; user unknown
Jun 25 04:58:34 nunchi sshd[11046]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.211.141.217
Jun 25 04:58:36 nunchi sshd[11046]: Failed password for invalid user dev from 190.211.141.217 port 23700 ssh2
Jun 25 04:58:36 nunchi sshd[11046]: Received disconnect from 190.211.141.217 port 23700:11: Bye Bye [preauth]
Jun 25 04:58:36 nunchi sshd[11046]: Disconnected from 190.211.141.217 port 23700 [preauth]
Jun 25 04:59:09 nunchi sshd[11055]: Invalid user kua from 107.170.234.57 port 60704
Jun 25 04:59:09 nunchi sshd[11055]: input_userauth_request: invalid user kua [preauth]
Jun 25 04:59:09 nunchi sshd[11055]: pam_unix(sshd:auth): check pass; user unknown
Jun 25 04:59:09 nunchi sshd[11055]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.170.234.57
Jun 25 04:59:10 nunchi sshd[11055]: Failed password for invalid user kua from 107.170.234.57 port 60704 ssh2
Jun 25 04:59:10 nunchi sshd[11055]: Received disconnect from 107.170.234.57 port 60704:11: Bye Bye [preauth]
Jun 25 04:59:10 nunchi sshd[11055]: Disconnected from 107.170.234.57 port 60704 [preauth]
Jun 25 04:59:53 nunchi sshd[11071]: Invalid user testcf from 51.38.113.45 port 33878
Jun 25 04:59:53 nunchi sshd[11071]: input_userauth_request: invalid user testcf [preauth]
Jun 25 04:59:53 nunchi sshd[11071]: pam_unix(sshd:auth): check pass; user unknown
Jun 25 04:59:53 nunchi sshd[11071]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.113.45
Jun 25 04:59:55 nunchi sshd[11071]: Failed password for invalid user testcf from 51.38.113.45 port 33878 ssh2


2019-06-25 04:58:36,924 fail2ban.actions        [1204]: NOTICE  [sshd] Ban 190.211.141.217
2019-06-25 04:59:54,128 fail2ban.actions        [1204]: NOTICE  [sshd] Ban 51.38.113.45
2019-06-25 05:01:36,488 fail2ban.actions        [1204]: NOTICE  [sshd] Ban 107.170.234.57