Jun 10 21:25:57 [host] sshd[20649]: Invalid user t
Jun 10 21:25:57 [host] sshd[20649]: pam_unix(sshd:
Jun 10 21:25:59 [host] sshd[20649]: Failed passwor

Port probing on unauthorized port 9530

2020-06-10T21:26:47+0200 Failed SSH Authentication/Brute Force Attack. (Server 4)

Jun 10 20:03:04 localhost sshd[119338]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.92.166.166  user=root
Jun 10 20:03:06 localhost sshd[119338]: Failed password for root from 120.92.166.166 port 4775 ssh2
Jun 10 20:06:29 localhost sshd[119748]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.92.166.166  user=root
Jun 10 20:06:31 localhost sshd[119748]: Failed password for root from 120.92.166.166 port 30567 ssh2
Jun 10 20:09:40 localhost sshd[120170]: Invalid user earl from 120.92.166.166 port 56359
...

Automatic report - Banned IP Access

2020-06-10T20:23:55.959584shield sshd\[10407\]: Invalid user wuyanzhou from 58.87.67.226 port 54770
2020-06-10T20:23:55.963689shield sshd\[10407\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.87.67.226
2020-06-10T20:23:57.933962shield sshd\[10407\]: Failed password for invalid user wuyanzhou from 58.87.67.226 port 54770 ssh2
2020-06-10T20:27:27.587088shield sshd\[10947\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.87.67.226  user=root
2020-06-10T20:27:29.326708shield sshd\[10947\]: Failed password for root from 58.87.67.226 port 39008 ssh2

Jun 10 22:18:47 lukav-desktop sshd\[1106\]: Invalid user cron from 54.37.71.235
Jun 10 22:18:47 lukav-desktop sshd\[1106\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.71.235
Jun 10 22:18:49 lukav-desktop sshd\[1106\]: Failed password for invalid user cron from 54.37.71.235 port 51371 ssh2
Jun 10 22:25:59 lukav-desktop sshd\[1218\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.71.235  user=root
Jun 10 22:26:00 lukav-desktop sshd\[1218\]: Failed password for root from 54.37.71.235 port 53019 ssh2

Jun 10 21:26:34 server dovecot: imap-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=109.140.155.246, lip=172.104.140.148, session=
Jun 10 21:26:41 server dovecot: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=109.140.155.246, lip=172.104.140.148, session=
Jun 10 21:26:41 server dovecot: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=109.140.155.246, lip=172.104.140.148, session=
Jun 10 21:26:47 server dovecot: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=109.140.155.246, lip=172.104.140.148, session=<6A/U0r+nABBtjJv2>
Jun 10 21:26:49 server dovecot: imap-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=109.140.155.246, lip=172.104.1
...

Jun  8 19:56:45 server6 sshd[2439]: Address 198.55.103.107 maps to 198.55.103.107.static.quadranet.com, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Jun  8 19:56:45 server6 sshd[2439]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.55.103.107  user=man
Jun  8 19:56:47 server6 sshd[2439]: Failed password for man from 198.55.103.107 port 44095 ssh2
Jun  8 19:56:47 server6 sshd[2439]: Received disconnect from 198.55.103.107: 11: Bye Bye [preauth]
Jun  8 20:09:33 server6 sshd[15053]: Address 198.55.103.107 maps to 198.55.103.107.static.quadranet.com, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Jun  8 20:09:35 server6 sshd[15053]: Failed password for invalid user zhanglin from 198.55.103.107 port 39823 ssh2
Jun  8 20:09:35 server6 sshd[15053]: Received disconnect from 198.55.103.107: 11: Bye Bye [preauth]
Jun  8 20:15:11 server6 sshd[20481]: Address 198.55.103.107 maps to 198.55........
-------------------------------

Jun 10 22:10:58 eventyay sshd[19969]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.150.124.76
Jun 10 22:11:00 eventyay sshd[19969]: Failed password for invalid user trafic from 103.150.124.76 port 59926 ssh2
Jun 10 22:15:05 eventyay sshd[20158]: Failed password for root from 103.150.124.76 port 54692 ssh2
...

Jun 10 21:26:10 debian-2gb-nbg1-2 kernel: \[14075899.289422\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=117.50.126.4 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=235 ID=48873 PROTO=TCP SPT=58478 DPT=1433 WINDOW=1024 RES=0x00 SYN URGP=0

1591817180 - 06/10/2020 21:26:20 Host: 14.29.126.58/14.29.126.58 Port: 445 TCP Blocked

Jun 10 22:48:42 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=89.248.168.2, lip=172.104.140.148, session=
Jun 10 22:49:51 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=89.248.168.2, lip=172.104.140.148, session=
Jun 10 22:50:27 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=89.248.168.2, lip=172.104.140.148, session=
Jun 10 22:51:01 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=89.248.168.2, lip=172.104.140.148, session=
Jun 10 22:52:11 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=89.248.168.2, lip=172.104.140.148, ses
...

Jun 10 21:26:45 debian-2gb-nbg1-2 kernel: \[14075935.013696\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=125.64.94.131 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=54321 PROTO=TCP SPT=44915 DPT=1010 WINDOW=65535 RES=0x00 SYN URGP=0

firewall-block, port(s): 4569/udp, 35231/udp, 55060/udp