Oct 13 07:51:43 web1 sshd[12017]: Invalid user danny from 51.91.127.201 port 37200
Oct 13 07:51:43 web1 sshd[12017]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.127.201
Oct 13 07:51:43 web1 sshd[12017]: Invalid user danny from 51.91.127.201 port 37200
Oct 13 07:51:46 web1 sshd[12017]: Failed password for invalid user danny from 51.91.127.201 port 37200 ssh2
Oct 13 08:01:04 web1 sshd[15196]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.127.201  user=root
Oct 13 08:01:07 web1 sshd[15196]: Failed password for root from 51.91.127.201 port 45446 ssh2
Oct 13 08:04:15 web1 sshd[16595]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.127.201  user=root
Oct 13 08:04:17 web1 sshd[16595]: Failed password for root from 51.91.127.201 port 49480 ssh2
Oct 13 08:07:23 web1 sshd[17680]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh
...

Brute-force attempt banned

log:/meteo/629644

Oct 13 00:40:05 raspberrypi sshd[14462]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.132.117.254 
Oct 13 00:40:07 raspberrypi sshd[14462]: Failed password for invalid user powernet from 120.132.117.254 port 37106 ssh2
...

(sshd) Failed SSH login from 103.130.109.9 (IN/India/ns2.nuron.co.in): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 16:39:04 optimus sshd[28119]: Failed password for root from 103.130.109.9 port 52814 ssh2
Oct 12 16:42:09 optimus sshd[29435]: Failed password for root from 103.130.109.9 port 54026 ssh2
Oct 12 16:45:08 optimus sshd[30595]: Invalid user adv from 103.130.109.9
Oct 12 16:45:09 optimus sshd[30595]: Failed password for invalid user adv from 103.130.109.9 port 53749 ssh2
Oct 12 16:48:19 optimus sshd[32226]: Invalid user sienna from 103.130.109.9

SSH break in attempt
...

Fail2Ban Ban Triggered (2)

Oct 13 01:35:44 pkdns2 sshd\[323\]: Invalid user ruiz from 180.128.8.6Oct 13 01:35:46 pkdns2 sshd\[323\]: Failed password for invalid user ruiz from 180.128.8.6 port 56036 ssh2Oct 13 01:39:57 pkdns2 sshd\[500\]: Invalid user cdimascio from 180.128.8.6Oct 13 01:39:59 pkdns2 sshd\[500\]: Failed password for invalid user cdimascio from 180.128.8.6 port 60684 ssh2Oct 13 01:44:08 pkdns2 sshd\[737\]: Invalid user ruben from 180.128.8.6Oct 13 01:44:10 pkdns2 sshd\[737\]: Failed password for invalid user ruben from 180.128.8.6 port 37104 ssh2
...

Oct 13 00:52:27 vps639187 sshd\[15982\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.115  user=root
Oct 13 00:52:28 vps639187 sshd\[15982\]: Failed password for root from 222.186.15.115 port 10295 ssh2
Oct 13 00:52:30 vps639187 sshd\[15982\]: Failed password for root from 222.186.15.115 port 10295 ssh2
...

SASL PLAIN auth failed: ruser=...

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.

SSH Brute-Force attacks

Oct 12 23:14:13 OPSO sshd\[9799\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.187.21  user=root
Oct 12 23:14:15 OPSO sshd\[9799\]: Failed password for root from 140.143.187.21 port 50420 ssh2
Oct 12 23:17:10 OPSO sshd\[10742\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.187.21  user=root
Oct 12 23:17:12 OPSO sshd\[10742\]: Failed password for root from 140.143.187.21 port 35910 ssh2
Oct 12 23:19:59 OPSO sshd\[11056\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.187.21  user=root

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

Port Scan detected!
...