journalctl -xe
Nov 28 13:43:51 server1.gdfnow.org sshd[22275]: input_userauth_request: invalid user saned [preauth]
Nov 28 13:43:51 server1.gdfnow.org sshd[22275]: pam_unix(sshd:auth): check pass; user unknown
Nov 28 13:43:51 server1.gdfnow.org sshd[22275]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.73.48
Nov 28 13:43:53 server1.gdfnow.org sshd[22275]: Failed password for invalid user saned from 51.83.73.48 port 49440 ssh2
Nov 28 13:43:54 server1.gdfnow.org sshd[22275]: Received disconnect from 51.83.73.48 port 49440:11: Bye Bye [preauth]
Nov 28 13:43:54 server1.gdfnow.org sshd[22275]: Disconnected from 51.83.73.48 port 49440 [preauth]
Nov 28 13:43:59 server1.gdfnow.org unix_chkpwd[22280]: password check failed for user (root)
Nov 28 13:43:59 server1.gdfnow.org sshd[22278]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.148 user=root
Nov 28 13:43:59 server1.gdfnow.org sshd[22278]: pam_succeed_if(sshd:auth): requirement "uid >= 1000" not met by user "root"
Nov 28 13:44:01 server1.gdfnow.org sshd[22278]: Failed password for root from 222.186.175.148 port 53926 ssh2
Nov 28 13:44:02 server1.gdfnow.org unix_chkpwd[22281]: password check failed for user (root)
Nov 28 13:44:02 server1.gdfnow.org sshd[22278]: pam_succeed_if(sshd:auth): requirement "uid >= 1000" not met by user "root"
Nov 28 13:44:04 server1.gdfnow.org sshd[22278]: Failed password for root from 222.186.175.148 port 53926 ssh2
Nov 28 13:44:05 server1.gdfnow.org unix_chkpwd[22282]: password check failed for user (root)
Nov 28 13:44:05 server1.gdfnow.org sshd[22278]: pam_succeed_if(sshd:auth): requirement "uid >= 1000" not met by user "root"
Nov 28 13:44:07 server1.gdfnow.org sshd[22278]: Failed password for root from 222.186.175.148 port 53926 ssh2