Oct 13 12:08:36 game-panel sshd[26733]: Failed password for root from 51.77.116.47 port 41426 ssh2
Oct 13 12:12:53 game-panel sshd[26946]: Failed password for root from 51.77.116.47 port 53570 ssh2

Oct 13 21:24:12 spy sshd[21255]: Failed password for r.r from 51.77.231.161 port 51886 ssh2
Oct 13 21:25:43 spy sshd[21257]: Failed password for r.r from 51.77.231.161 port 57756 ssh2
Oct 13 21:27:22 spy sshd[21262]: Failed password for r.r from 51.77.231.161 port 35126 ssh2
Oct 13 21:28:55 spy sshd[21264]: Failed password for r.r from 51.77.231.161 port 41124 ssh2
Oct 13 21:30:29 spy sshd[21268]: Invalid user oracle from 51.77.231.161
Oct 13 21:30:31 spy sshd[21268]: Failed password for invalid user oracle from 51.77.231.161 port 46816 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=51.77.231.161

Oct 13 13:47:37 apollo sshd\[5950\]: Failed password for root from 75.31.93.181 port 12678 ssh2Oct 13 13:51:58 apollo sshd\[5958\]: Failed password for root from 75.31.93.181 port 55424 ssh2Oct 13 13:55:55 apollo sshd\[5964\]: Failed password for root from 75.31.93.181 port 39304 ssh2
...

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/178.212.167.184/ 
 PL - 1H : (217)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : PL 
 NAME ASN : ASN50625 
 
 IP : 178.212.167.184 
 
 CIDR : 178.212.160.0/21 
 
 PREFIX COUNT : 13 
 
 UNIQUE IP COUNT : 12032 
 
 
 WYKRYTE ATAKI Z ASN50625 :  
  1H - 1 
  3H - 1 
  6H - 1 
 12H - 2 
 24H - 2 
 
 DateTime : 2019-10-13 13:56:52 
 
 INFO : SERVER - Looking for resource vulnerabilities Detected and Blocked by ADMIN  - data recovery

Fail2Ban - SMTP Bruteforce Attempt

Oct 13 13:56:23 * sshd[6760]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.64.218
Oct 13 13:56:25 * sshd[6760]: Failed password for invalid user 123qazedctgb from 118.25.64.218 port 51340 ssh2

2019-10-13 H=\(1st.net\) \[185.178.220.126\] F=\ rejected RCPT \: Mail not accepted. 185.178.220.126 is listed at a DNSBL.
2019-10-13 H=\(1st.net\) \[185.178.220.126\] F=\ rejected RCPT \: Mail not accepted. 185.178.220.126 is listed at a DNSBL.
2019-10-13 H=\(1st.net\) \[185.178.220.126\] F=\ rejected RCPT \<**REMOVED**@**REMOVED**.de\>: Mail not accepted. 185.178.220.126 is listed at a DNSBL.

Fail2Ban - SMTP Bruteforce Attempt

Oct 13 13:56:54 dedicated sshd[4122]: Invalid user admin@123456 from 180.100.214.87 port 45762

MultiHost/MultiPort Probe, Scan, Hack -

10/13/2019-07:56:19.437388 159.203.201.184 Protocol: 6 ET DROP Dshield Block Listed Source group 1

Server penetration trying other domain names than server publicly serves (ex https://localhost)

2019-10-13T18:57:46.036058enmeeting.mahidol.ac.th sshd\[29653\]: User root from 122.115.230.183 not allowed because not listed in AllowUsers
2019-10-13T18:57:46.172974enmeeting.mahidol.ac.th sshd\[29653\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.115.230.183  user=root
2019-10-13T18:57:48.145522enmeeting.mahidol.ac.th sshd\[29653\]: Failed password for invalid user root from 122.115.230.183 port 41970 ssh2
...

Oct 13 14:08:56 eventyay sshd[1436]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.23.89
Oct 13 14:08:59 eventyay sshd[1436]: Failed password for invalid user TEST@2019 from 182.61.23.89 port 33222 ssh2
Oct 13 14:14:22 eventyay sshd[1703]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.23.89
...

Oct 13 08:52:02 firewall sshd[7660]: Invalid user Gustavo123 from 165.227.112.164
Oct 13 08:52:04 firewall sshd[7660]: Failed password for invalid user Gustavo123 from 165.227.112.164 port 48390 ssh2
Oct 13 08:56:10 firewall sshd[7933]: Invalid user Adolph_123 from 165.227.112.164
...