Sep 10 04:41:22 meumeu sshd[29241]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.172.147.34 
Sep 10 04:41:23 meumeu sshd[29241]: Failed password for invalid user arma3server from 112.172.147.34 port 47937 ssh2
Sep 10 04:48:38 meumeu sshd[30099]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.172.147.34 
...

Sep 10 07:19:19 microserver sshd[5175]: Invalid user sail_ftp from 107.131.126.71 port 39582
Sep 10 07:19:19 microserver sshd[5175]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.131.126.71
Sep 10 07:19:21 microserver sshd[5175]: Failed password for invalid user sail_ftp from 107.131.126.71 port 39582 ssh2
Sep 10 07:25:26 microserver sshd[6377]: Invalid user 201 from 107.131.126.71 port 53480
Sep 10 07:25:26 microserver sshd[6377]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.131.126.71

Apr 10 03:52:00 vtv3 sshd\[21615\]: Invalid user ttt from 221.132.17.74 port 36594
Apr 10 03:52:00 vtv3 sshd\[21615\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.132.17.74
Apr 10 03:52:02 vtv3 sshd\[21615\]: Failed password for invalid user ttt from 221.132.17.74 port 36594 ssh2
Apr 10 03:59:12 vtv3 sshd\[24298\]: Invalid user dragos from 221.132.17.74 port 44014
Apr 10 03:59:12 vtv3 sshd\[24298\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.132.17.74
Apr 15 09:06:02 vtv3 sshd\[23697\]: Invalid user asterisk from 221.132.17.74 port 57434
Apr 15 09:06:02 vtv3 sshd\[23697\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.132.17.74
Apr 15 09:06:03 vtv3 sshd\[23697\]: Failed password for invalid user asterisk from 221.132.17.74 port 57434 ssh2
Apr 15 09:12:03 vtv3 sshd\[26761\]: Invalid user info from 221.132.17.74 port 51680
Apr 15 09:12:03 vtv3 sshd\[26761\]: pam

Sep  9 17:19:39 kapalua sshd\[5287\]: Invalid user 12345 from 119.40.33.22
Sep  9 17:19:39 kapalua sshd\[5287\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.40.33.22
Sep  9 17:19:41 kapalua sshd\[5287\]: Failed password for invalid user 12345 from 119.40.33.22 port 43392 ssh2
Sep  9 17:25:34 kapalua sshd\[6564\]: Invalid user 12345 from 119.40.33.22
Sep  9 17:25:34 kapalua sshd\[6564\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.40.33.22

Sep 10 05:18:12 localhost sshd\[2878\]: Invalid user tomcat from 200.107.154.40 port 48421
Sep 10 05:18:13 localhost sshd\[2878\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.107.154.40
Sep 10 05:18:14 localhost sshd\[2878\]: Failed password for invalid user tomcat from 200.107.154.40 port 48421 ssh2

Semrush bot's User Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

Sep  9 17:05:55 php2 sshd\[15364\]: Invalid user git from 142.93.218.128
Sep  9 17:05:55 php2 sshd\[15364\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.93.218.128
Sep  9 17:05:56 php2 sshd\[15364\]: Failed password for invalid user git from 142.93.218.128 port 58278 ssh2
Sep  9 17:12:03 php2 sshd\[16087\]: Invalid user kafka from 142.93.218.128
Sep  9 17:12:03 php2 sshd\[16087\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.93.218.128

Sep 10 03:22:06 smtp postfix/smtpd[56104]: NOQUEUE: reject: RCPT from unknown[178.19.180.202]: 554 5.7.1 Service unavailable; Client host [178.19.180.202] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?178.19.180.202; from= to= proto=ESMTP helo=
...

SIPVicious Scanner Detection, PTR: ns3129528.ip-51-75-144.eu.

Sep  9 17:17:34 php1 sshd\[6422\]: Invalid user christian from 193.70.2.117
Sep  9 17:17:34 php1 sshd\[6422\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.ip-193-70-2.eu
Sep  9 17:17:35 php1 sshd\[6422\]: Failed password for invalid user christian from 193.70.2.117 port 57200 ssh2
Sep  9 17:22:51 php1 sshd\[7036\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.ip-193-70-2.eu  user=mysql
Sep  9 17:22:54 php1 sshd\[7036\]: Failed password for mysql from 193.70.2.117 port 39692 ssh2

Sep 10 04:49:03 vps647732 sshd[20406]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.108.244.4
Sep 10 04:49:05 vps647732 sshd[20406]: Failed password for invalid user vmuser from 103.108.244.4 port 41476 ssh2
...

Sep  9 22:55:55 ny01 sshd[5085]: Failed password for root from 187.32.178.45 port 3783 ssh2
Sep  9 23:03:03 ny01 sshd[6487]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.32.178.45
Sep  9 23:03:06 ny01 sshd[6487]: Failed password for invalid user deploy from 187.32.178.45 port 60266 ssh2

Sep  9 16:43:10 php1 sshd\[30183\]: Invalid user nash from 103.219.61.3
Sep  9 16:43:10 php1 sshd\[30183\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.219.61.3
Sep  9 16:43:11 php1 sshd\[30183\]: Failed password for invalid user nash from 103.219.61.3 port 44600 ssh2
Sep  9 16:48:15 php1 sshd\[30713\]: Invalid user memcached from 103.219.61.3
Sep  9 16:48:15 php1 sshd\[30713\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.219.61.3

Sep 10 06:09:42 www2 sshd\[42142\]: Invalid user postgres from 49.234.180.159Sep 10 06:09:44 www2 sshd\[42142\]: Failed password for invalid user postgres from 49.234.180.159 port 51086 ssh2Sep 10 06:14:26 www2 sshd\[42737\]: Invalid user postgres from 49.234.180.159
...