Apr 16 07:55:48 lukav-desktop sshd\[785\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.89.178.229  user=root
Apr 16 07:55:50 lukav-desktop sshd\[785\]: Failed password for root from 200.89.178.229 port 33588 ssh2
Apr 16 08:00:16 lukav-desktop sshd\[1009\]: Invalid user postgres from 200.89.178.229
Apr 16 08:00:16 lukav-desktop sshd\[1009\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.89.178.229
Apr 16 08:00:18 lukav-desktop sshd\[1009\]: Failed password for invalid user postgres from 200.89.178.229 port 40646 ssh2

Apr 16 09:30:57 lukav-desktop sshd\[26382\]: Invalid user marcus from 128.199.240.120
Apr 16 09:30:57 lukav-desktop sshd\[26382\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.240.120
Apr 16 09:30:59 lukav-desktop sshd\[26382\]: Failed password for invalid user marcus from 128.199.240.120 port 41834 ssh2
Apr 16 09:35:07 lukav-desktop sshd\[26545\]: Invalid user enigma from 128.199.240.120
Apr 16 09:35:07 lukav-desktop sshd\[26545\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.240.120

Apr 16 05:56:19 scw-6657dc sshd[23466]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=74.208.198.142
Apr 16 05:56:19 scw-6657dc sshd[23466]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=74.208.198.142
Apr 16 05:56:21 scw-6657dc sshd[23466]: Failed password for invalid user kadmin from 74.208.198.142 port 37384 ssh2
...

Fail2Ban Ban Triggered

[2020-04-16 02:06:22] NOTICE[1170] chan_sip.c: Registration from '"370"' failed for '212.129.50.137:6671' - Wrong password
[2020-04-16 02:06:22] SECURITY[1184] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-04-16T02:06:22.360-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="370",SessionID="0x7f6c08099cc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.129.50.137/6671",Challenge="4098daec",ReceivedChallenge="4098daec",ReceivedHash="bca8c6828bc89e9357ab98d0a5b2694a"
[2020-04-16 02:14:59] NOTICE[1170] chan_sip.c: Registration from '"371"' failed for '212.129.50.137:6707' - Wrong password
[2020-04-16 02:14:59] SECURITY[1184] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-04-16T02:14:59.621-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="371",SessionID="0x7f6c081949a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.129
...

146.88.240.4 was recorded 132 times by 14 hosts attempting to connect to the following ports: 161,123,27017,1900,1434,1194,111,17,69,10001,520,5093,27970,7788. Incident counter (4h, 24h, all-time): 132, 329, 72411

Apr 16 08:32:05 minden010 sshd[31328]: Failed password for root from 222.186.175.183 port 16760 ssh2
Apr 16 08:32:15 minden010 sshd[31328]: Failed password for root from 222.186.175.183 port 16760 ssh2
Apr 16 08:32:19 minden010 sshd[31328]: Failed password for root from 222.186.175.183 port 16760 ssh2
Apr 16 08:32:19 minden010 sshd[31328]: error: maximum authentication attempts exceeded for root from 222.186.175.183 port 16760 ssh2 [preauth]
...

Apr 16 08:03:51 sip sshd[18506]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.111.30
Apr 16 08:03:52 sip sshd[18506]: Failed password for invalid user openvpn from 51.77.111.30 port 53910 ssh2
Apr 16 08:19:25 sip sshd[24203]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.111.30

Apr 16 05:36:54 vps sshd[32405]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.29.236 
Apr 16 05:36:57 vps sshd[32405]: Failed password for invalid user manfred from 122.51.29.236 port 48610 ssh2
Apr 16 05:53:38 vps sshd[989]: Failed password for root from 122.51.29.236 port 57730 ssh2
...

Apr 16 05:53:06 debian-2gb-nbg1-2 kernel: \[9268169.170554\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=59.173.238.118 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=237 ID=5124 PROTO=TCP SPT=48876 DPT=20063 WINDOW=1024 RES=0x00 SYN URGP=0

port scan

04/16/2020-01:19:39.536419 80.82.77.227 Protocol: 6 ET DROP Dshield Block Listed Source group 1

Apr 16 06:22:22 srv01 sshd[25683]: Invalid user ubuntu from 106.12.125.140 port 48634
Apr 16 06:22:22 srv01 sshd[25683]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.125.140
Apr 16 06:22:22 srv01 sshd[25683]: Invalid user ubuntu from 106.12.125.140 port 48634
Apr 16 06:22:24 srv01 sshd[25683]: Failed password for invalid user ubuntu from 106.12.125.140 port 48634 ssh2
Apr 16 06:25:24 srv01 sshd[27621]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.125.140  user=root
Apr 16 06:25:26 srv01 sshd[27621]: Failed password for root from 106.12.125.140 port 33338 ssh2
...

Apr 16 07:39:14 vps sshd[7125]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.109.99.68 
Apr 16 07:39:16 vps sshd[7125]: Failed password for invalid user amsftp from 150.109.99.68 port 38764 ssh2
Apr 16 07:51:59 vps sshd[7749]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.109.99.68 
...

Port Scan: Events[2] countPorts[1]: 22 ..