Feb  4 02:32:34 grey postfix/smtpd\[5530\]: NOQUEUE: reject: RCPT from unknown\[177.239.42.252\]: 554 5.7.1 Service unavailable\; Client host \[177.239.42.252\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[177.239.42.252\]\; from=\ to=\ proto=ESMTP helo=\<177.239.42.252.cable.dyn.cableonline.com.mx\>
...

1580774786 - 02/04/2020 01:06:26 Host: 187.76.236.242/187.76.236.242 Port: 445 TCP Blocked

Unauthorized connection attempt detected from IP address 84.45.251.243 to port 2220 [J]

Feb  4 01:04:26 v22019058497090703 sshd[13158]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.165.168.229
Feb  4 01:04:28 v22019058497090703 sshd[13158]: Failed password for invalid user support from 185.165.168.229 port 48687 ssh2
...

Feb  3 18:47:05 finn sshd[15846]: Invalid user robertazzi from 106.13.236.132 port 33660
Feb  3 18:47:05 finn sshd[15846]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.236.132
Feb  3 18:47:07 finn sshd[15846]: Failed password for invalid user robertazzi from 106.13.236.132 port 33660 ssh2
Feb  3 18:47:07 finn sshd[15846]: Received disconnect from 106.13.236.132 port 33660:11: Bye Bye [preauth]
Feb  3 18:47:07 finn sshd[15846]: Disconnected from 106.13.236.132 port 33660 [preauth]
Feb  3 18:52:39 finn sshd[17212]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.236.132  user=r.r
Feb  3 18:52:42 finn sshd[17212]: Failed password for r.r from 106.13.236.132 port 34148 ssh2
Feb  3 18:52:42 finn sshd[17212]: Received disconnect from 106.13.236.132 port 34148:11: Bye Bye [preauth]
Feb  3 18:52:42 finn sshd[17212]: Disconnected from 106.13.236.132 port 34148 [preauth]


........
------------------------------------------

Feb  4 01:53:43 MK-Soft-VM3 sshd[19265]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.211.247.153 
Feb  4 01:53:45 MK-Soft-VM3 sshd[19265]: Failed password for invalid user webmaster from 91.211.247.153 port 64370 ssh2
Feb  4 02:01:49 MK-Soft-VM3 sshd[19539]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.211.247.153 
Feb  4 02:01:50 MK-Soft-VM3 sshd[19539]: Failed password for invalid user frappe from 91.211.247.153 port 55152 ssh2
...

Feb  4 02:24:12 grey postfix/smtpd\[9304\]: NOQUEUE: reject: RCPT from unknown\[190.247.105.153\]: 554 5.7.1 Service unavailable\; Client host \[190.247.105.153\] blocked using dul.dnsbl.sorbs.net\; Dynamic IP Addresses See: http://www.sorbs.net/lookup.shtml\?190.247.105.153\; from=\ to=\ proto=ESMTP helo=\<153-105-247-190.fibertel.com.ar\>
...

SSH bruteforce (Triggered fail2ban)

Feb  4 00:50:08 pl3server sshd[29080]: Invalid user admin from 37.114.181.217
Feb  4 00:50:08 pl3server sshd[29080]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.114.181.217
Feb  4 00:50:10 pl3server sshd[29080]: Failed password for invalid user admin from 37.114.181.217 port 35306 ssh2
Feb  4 00:50:10 pl3server sshd[29080]: Connection closed by 37.114.181.217 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=37.114.181.217

Feb  3 15:16:19 hpm sshd\[16219\]: Invalid user tongzhou from 188.131.174.3
Feb  3 15:16:19 hpm sshd\[16219\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.131.174.3
Feb  3 15:16:22 hpm sshd\[16219\]: Failed password for invalid user tongzhou from 188.131.174.3 port 44760 ssh2
Feb  3 15:23:03 hpm sshd\[16498\]: Invalid user shawnh from 188.131.174.3
Feb  3 15:23:03 hpm sshd\[16498\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.131.174.3

Feb  4 01:06:30 grey postfix/smtpd\[26316\]: NOQUEUE: reject: RCPT from unknown\[58.44.149.133\]: 554 5.7.1 Service unavailable\; Client host \[58.44.149.133\] blocked using cbl.abuseat.org\; Blocked - see http://www.abuseat.org/lookup.cgi\?ip=58.44.149.133\; from=\ to=\ proto=ESMTP helo=\<\[58.44.149.133\]\>
...

Feb  4 01:04:22 v22019058497090703 sshd[13152]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.154.179.3
Feb  4 01:04:23 v22019058497090703 sshd[13152]: Failed password for invalid user support from 195.154.179.3 port 46487 ssh2
...

Feb  4 02:21:25 meumeu sshd[18348]: Failed password for root from 112.85.42.173 port 31193 ssh2
Feb  4 02:21:41 meumeu sshd[18348]: error: maximum authentication attempts exceeded for root from 112.85.42.173 port 31193 ssh2 [preauth]
Feb  4 02:21:47 meumeu sshd[18391]: Failed password for root from 112.85.42.173 port 11645 ssh2
...

Lines containing failures of 193.34.69.196


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=193.34.69.196

Lines containing failures of 80.211.255.119
/var/log/mail.err:Feb  4 00:53:11 server01 postfix/smtpd[3295]: warning: hostname host119-255-211-80.static.arubacloud.pl does not resolve to address 80.211.255.119: Name or service not known
/var/log/apache/pucorp.org.log:Feb  4 00:53:11 server01 postfix/smtpd[3295]: warning: hostname host119-255-211-80.static.arubacloud.pl does not resolve to address 80.211.255.119: Name or service not known
/var/log/apache/pucorp.org.log:Feb  4 00:53:11 server01 postfix/smtpd[3295]: connect from unknown[80.211.255.119]
/var/log/apache/pucorp.org.log:Feb x@x
/var/log/apache/pucorp.org.log:Feb x@x
/var/log/apache/pucorp.org.log:Feb  4 00:53:13 server01 postfix/policy-spf[3306]: : Policy action=550 Please see hxxp://www.openspf.org/Why?s=mfrom;id=info%40usa.com;ip=80.211.255.119;r=server01.2800km.de
/var/log/apache/pucorp.org.log:Feb x@x
/var/log/apache/pucorp.org.log:Feb  4 00:53:13 server01 postfix/smtpd[3295]: disconnect from unknown[80.211.........
------------------------------