Port scan: Attack repeated for 24 hours

Feb  9 00:24:36 goofy sshd\[6636\]: Invalid user vrd from 106.12.182.142
Feb  9 00:24:36 goofy sshd\[6636\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.182.142
Feb  9 00:24:39 goofy sshd\[6636\]: Failed password for invalid user vrd from 106.12.182.142 port 40322 ssh2
Feb  9 00:48:30 goofy sshd\[7826\]: Invalid user iig from 106.12.182.142
Feb  9 00:48:30 goofy sshd\[7826\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.182.142

Feb  9 01:27:01 icinga sshd[26824]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.70.142.211 
Feb  9 01:27:03 icinga sshd[26824]: Failed password for invalid user osn from 66.70.142.211 port 47390 ssh2
Feb  9 01:46:49 icinga sshd[45987]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.70.142.211 
...

Feb  9 02:35:57 markkoudstaal sshd[1360]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.229.6.48
Feb  9 02:35:59 markkoudstaal sshd[1360]: Failed password for invalid user ozq from 69.229.6.48 port 48930 ssh2
Feb  9 02:40:49 markkoudstaal sshd[2246]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.229.6.48

Feb  9 02:02:10 tuxlinux sshd[12991]: Invalid user qlg from 180.76.179.67 port 48170
Feb  9 02:02:10 tuxlinux sshd[12991]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.179.67 
Feb  9 02:02:10 tuxlinux sshd[12991]: Invalid user qlg from 180.76.179.67 port 48170
Feb  9 02:02:10 tuxlinux sshd[12991]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.179.67 
Feb  9 02:02:10 tuxlinux sshd[12991]: Invalid user qlg from 180.76.179.67 port 48170
Feb  9 02:02:10 tuxlinux sshd[12991]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.179.67 
Feb  9 02:02:13 tuxlinux sshd[12991]: Failed password for invalid user qlg from 180.76.179.67 port 48170 ssh2
...

Feb  9 01:46:19 grey postfix/smtpd\[26949\]: NOQUEUE: reject: RCPT from unknown\[113.117.148.85\]: 554 5.7.1 Service unavailable\; Client host \[113.117.148.85\] blocked using bl.spamcop.net\; Blocked - see https://www.spamcop.net/bl.shtml\?113.117.148.85\; from=\ to=\ proto=ESMTP helo=\
...

Brute-force attempt banned

Feb  8 15:26:54 web9 sshd\[20724\]: Invalid user shy from 138.186.63.73
Feb  8 15:26:54 web9 sshd\[20724\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.186.63.73
Feb  8 15:26:56 web9 sshd\[20724\]: Failed password for invalid user shy from 138.186.63.73 port 54440 ssh2
Feb  8 15:29:13 web9 sshd\[21105\]: Invalid user tsf from 138.186.63.73
Feb  8 15:29:13 web9 sshd\[21105\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.186.63.73

Feb  9 02:14:59 srv01 sshd[7904]: Invalid user rvy from 120.52.120.18 port 54100
Feb  9 02:14:59 srv01 sshd[7904]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.52.120.18
Feb  9 02:14:59 srv01 sshd[7904]: Invalid user rvy from 120.52.120.18 port 54100
Feb  9 02:15:01 srv01 sshd[7904]: Failed password for invalid user rvy from 120.52.120.18 port 54100 ssh2
Feb  9 02:18:10 srv01 sshd[8103]: Invalid user buu from 120.52.120.18 port 34114
...

Fail2Ban Ban Triggered

Feb  8 15:58:13 web9 sshd\[25320\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.176  user=root
Feb  8 15:58:16 web9 sshd\[25320\]: Failed password for root from 112.85.42.176 port 6095 ssh2
Feb  8 15:58:31 web9 sshd\[25347\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.176  user=root
Feb  8 15:58:34 web9 sshd\[25347\]: Failed password for root from 112.85.42.176 port 41118 ssh2
Feb  8 15:58:37 web9 sshd\[25347\]: Failed password for root from 112.85.42.176 port 41118 ssh2

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Feb  5 11:32:35 mail sshd[4027]: Failed password for invalid user ukw from 159.226.170.18 port 62300 ssh2
Feb  5 11:32:35 mail sshd[4027]: Received disconnect from 159.226.170.18: 11: Bye Bye [preauth]


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https://www.blocklist.de/en/view.html?ip=159.226.170.18

Feb  9 00:46:30 ws26vmsma01 sshd[225140]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.37.105.169
Feb  9 00:46:32 ws26vmsma01 sshd[225140]: Failed password for invalid user czq from 171.37.105.169 port 4183 ssh2
...

Feb  9 02:42:57 plex sshd[16746]: Invalid user vik from 41.74.112.15 port 36391