Oct 13 00:27:13 la sshd[242063]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.240.88.35 
Oct 13 00:27:13 la sshd[242063]: Invalid user kyousen from 45.240.88.35 port 53412
Oct 13 00:27:15 la sshd[242063]: Failed password for invalid user kyousen from 45.240.88.35 port 53412 ssh2
...

[2020-10-12 19:02:10] NOTICE[1182][C-000036e6] chan_sip.c: Call from '' (156.96.128.162:53229) to extension '300401113475022728' rejected because extension not found in context 'public'.
[2020-10-12 19:02:10] SECURITY[1204] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-10-12T19:02:10.833-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="300401113475022728",SessionID="0x7f22f840f098",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/156.96.128.162/53229",ACLName="no_extension_match"
[2020-10-12 19:03:03] NOTICE[1182][C-000036e8] chan_sip.c: Call from '' (156.96.128.162:58523) to extension '300501113475022728' rejected because extension not found in context 'public'.
[2020-10-12 19:03:03] SECURITY[1204] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-10-12T19:03:03.605-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="300501113475022728",SessionID="0x7f22f840f098",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAdd
...

Oct 12 21:54:19 xxxxxxx7446550 sshd[16947]: Invalid user admin from 14.198.141.145
Oct 12 21:54:21 xxxxxxx7446550 sshd[16947]: Failed password for invalid user admin from 14.198.141.145 port 44845 ssh2
Oct 12 21:54:21 xxxxxxx7446550 sshd[16948]: Received disconnect from 14.198.141.145: 11: Bye Bye
Oct 12 21:54:23 xxxxxxx7446550 sshd[16950]: Invalid user admin from 14.198.141.145
Oct 12 21:54:25 xxxxxxx7446550 sshd[16950]: Failed password for invalid user admin from 14.198.141.145 port 44931 ssh2
Oct 12 21:54:26 xxxxxxx7446550 sshd[16951]: Received disconnect from 14.198.141.145: 11: Bye Bye


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=14.198.141.145

Oct 12 22:51:28 host sshd[17604]: Invalid user student3 from 188.166.185.236 port 35836
...

php WP PHPmyadamin ABUSE blocked for 12h

SASL PLAIN auth failed: ruser=...

Banned for a week because repeated abuses, for example SSH, but not only

Oct 12 23:02:13 PorscheCustomer sshd[10591]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.148.160.166
Oct 12 23:02:16 PorscheCustomer sshd[10591]: Failed password for invalid user jsr from 120.148.160.166 port 47872 ssh2
Oct 12 23:06:31 PorscheCustomer sshd[10734]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.148.160.166
...

Oct 12 23:31:16 rocket sshd[8221]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.173.129
Oct 12 23:31:18 rocket sshd[8221]: Failed password for invalid user altair from 128.199.173.129 port 12548 ssh2
...

Oct 13 00:38:08 host1 sshd[32766]: Failed password for invalid user ftpuser from 213.32.92.57 port 41426 ssh2
Oct 13 00:41:07 host1 sshd[33157]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.32.92.57  user=root
Oct 13 00:41:09 host1 sshd[33157]: Failed password for root from 213.32.92.57 port 44640 ssh2
Oct 13 00:41:07 host1 sshd[33157]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.32.92.57  user=root
Oct 13 00:41:09 host1 sshd[33157]: Failed password for root from 213.32.92.57 port 44640 ssh2
...

Oct 12 21:16:27 vps-51d81928 sshd[791219]: Failed password for invalid user gulliver from 106.13.172.167 port 44416 ssh2
Oct 12 21:18:59 vps-51d81928 sshd[791366]: Invalid user Timot from 106.13.172.167 port 54528
Oct 12 21:18:59 vps-51d81928 sshd[791366]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.172.167 
Oct 12 21:18:59 vps-51d81928 sshd[791366]: Invalid user Timot from 106.13.172.167 port 54528
Oct 12 21:19:01 vps-51d81928 sshd[791366]: Failed password for invalid user Timot from 106.13.172.167 port 54528 ssh2
...

2020-10-12T16:52:59.819566yoshi.linuxbox.ninja sshd[3434621]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.16.117.215
2020-10-12T16:52:59.814245yoshi.linuxbox.ninja sshd[3434621]: Invalid user bastian from 94.16.117.215 port 36948
2020-10-12T16:53:02.112182yoshi.linuxbox.ninja sshd[3434621]: Failed password for invalid user bastian from 94.16.117.215 port 36948 ssh2
...

Received: from mail.titaniumtough.club (unknown [23.247.5.188])
Date: Mon, 12 Oct 2020 16:44:05 -0400
From: "Precise BrainPlus" 
Subject: ****SPAM**** Bill Gates needs his brain. He doesn't leave home without this.

Oct 13 00:09:35 roki-contabo sshd\[12815\]: Invalid user rose from 51.254.220.20
Oct 13 00:09:35 roki-contabo sshd\[12815\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.254.220.20
Oct 13 00:09:37 roki-contabo sshd\[12815\]: Failed password for invalid user rose from 51.254.220.20 port 35764 ssh2
Oct 13 00:12:09 roki-contabo sshd\[12898\]: Invalid user yoshitada from 51.254.220.20
Oct 13 00:12:09 roki-contabo sshd\[12898\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.254.220.20
...

Repeated brute force against a port