Sep 10 07:17:08 dcd-gentoo sshd[20932]: User root from 218.92.0.191 not allowed because none of user's groups are listed in AllowGroups
Sep 10 07:17:11 dcd-gentoo sshd[20932]: error: PAM: Authentication failure for illegal user root from 218.92.0.191
Sep 10 07:17:08 dcd-gentoo sshd[20932]: User root from 218.92.0.191 not allowed because none of user's groups are listed in AllowGroups
Sep 10 07:17:11 dcd-gentoo sshd[20932]: error: PAM: Authentication failure for illegal user root from 218.92.0.191
Sep 10 07:17:08 dcd-gentoo sshd[20932]: User root from 218.92.0.191 not allowed because none of user's groups are listed in AllowGroups
Sep 10 07:17:11 dcd-gentoo sshd[20932]: error: PAM: Authentication failure for illegal user root from 218.92.0.191
Sep 10 07:17:11 dcd-gentoo sshd[20932]: Failed keyboard-interactive/pam for invalid user root from 218.92.0.191 port 37466 ssh2
...

Sep 10 01:17:53 ny01 sshd[431]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.93.52.238
Sep 10 01:17:55 ny01 sshd[431]: Failed password for invalid user postgres from 54.93.52.238 port 41734 ssh2
Sep 10 01:23:50 ny01 sshd[1511]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.93.52.238

Sep 10 05:37:21 game-panel sshd[1573]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.70.65.131
Sep 10 05:37:23 game-panel sshd[1573]: Failed password for invalid user 1234 from 148.70.65.131 port 60098 ssh2
Sep 10 05:45:29 game-panel sshd[2810]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.70.65.131

Sep  9 20:00:57 lcdev sshd\[925\]: Invalid user git@123 from 121.67.246.139
Sep  9 20:00:57 lcdev sshd\[925\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.67.246.139
Sep  9 20:00:59 lcdev sshd\[925\]: Failed password for invalid user git@123 from 121.67.246.139 port 35730 ssh2
Sep  9 20:07:31 lcdev sshd\[1469\]: Invalid user insserver from 121.67.246.139
Sep  9 20:07:32 lcdev sshd\[1469\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.67.246.139

09/09/2019-21:18:39.603095 77.247.110.113 Protocol: 6 ET SCAN NMAP -sS window 1024

Sep 10 05:54:17 hb sshd\[26380\]: Invalid user student from 177.126.188.2
Sep 10 05:54:17 hb sshd\[26380\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.126.188.2
Sep 10 05:54:19 hb sshd\[26380\]: Failed password for invalid user student from 177.126.188.2 port 60478 ssh2
Sep 10 06:01:35 hb sshd\[27101\]: Invalid user znc-admin from 177.126.188.2
Sep 10 06:01:35 hb sshd\[27101\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.126.188.2

Sep 10 07:20:43 minden010 sshd[8936]: Failed password for root from 37.187.17.58 port 33698 ssh2
Sep 10 07:27:14 minden010 sshd[11340]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.187.17.58
Sep 10 07:27:16 minden010 sshd[11340]: Failed password for invalid user oracle from 37.187.17.58 port 39842 ssh2
...

Sep 10 05:53:43 legacy sshd[8999]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.102.171
Sep 10 05:53:45 legacy sshd[8999]: Failed password for invalid user test from 94.191.102.171 port 40834 ssh2
Sep 10 05:59:19 legacy sshd[9159]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.102.171
...

Sep 10 03:18:52 smtp postfix/smtpd[19511]: NOQUEUE: reject: RCPT from unknown[189.10.97.147]: 554 5.7.1 Service unavailable; Client host [189.10.97.147] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?189.10.97.147; from= to= proto=ESMTP helo=
...

Sep 10 08:27:33 server sshd\[29717\]: Invalid user sail_ftp from 51.255.46.254 port 42087
Sep 10 08:27:33 server sshd\[29717\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.255.46.254
Sep 10 08:27:35 server sshd\[29717\]: Failed password for invalid user sail_ftp from 51.255.46.254 port 42087 ssh2
Sep 10 08:32:36 server sshd\[22035\]: Invalid user 201 from 51.255.46.254 port 43703
Sep 10 08:32:36 server sshd\[22035\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.255.46.254

WordPress wp-login brute force :: 216.10.245.172 0.136 BYPASS [10/Sep/2019:11:18:55  1000] [censored_1] "POST /wp-login.php HTTP/1.1" 200 3972 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"

Sep 10 01:33:41 ny01 sshd[3775]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.180.102
Sep 10 01:33:43 ny01 sshd[3775]: Failed password for invalid user tom from 138.197.180.102 port 33456 ssh2
Sep 10 01:39:18 ny01 sshd[4687]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.180.102

Sep 10 08:06:17 [host] sshd[813]: Invalid user nagios from 202.59.166.148
Sep 10 08:06:17 [host] sshd[813]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.59.166.148
Sep 10 08:06:19 [host] sshd[813]: Failed password for invalid user nagios from 202.59.166.148 port 42464 ssh2

$f2bV_matches

Sep 10 03:14:26 mail postfix/submission/smtpd\[29545\]: lost connection after AUTH from unknown\[185.162.235.71\]
Sep 10 03:14:45 mail postfix/submission/smtpd\[29545\]: lost connection after AUTH from unknown\[185.162.235.71\]
Sep 10 03:14:58 mail postfix/submission/smtpd\[29545\]: lost connection after AUTH from unknown\[185.162.235.71\]