Apr  6 16:01:56 tempelhof postfix/smtpd[31788]: warning: hostname 69-94-131-35.nca.datanoc.com does not resolve to address 69.94.131.35: Name or service not known
Apr  6 16:01:56 tempelhof postfix/smtpd[31788]: connect from unknown[69.94.131.35]
Apr x@x
Apr  6 16:01:57 tempelhof postfix/smtpd[31788]: disconnect from unknown[69.94.131.35]
Apr  6 16:02:11 tempelhof postfix/smtpd[31788]: warning: hostname 69-94-131-35.nca.datanoc.com does not resolve to address 69.94.131.35: Name or service not known
Apr  6 16:02:11 tempelhof postfix/smtpd[31788]: connect from unknown[69.94.131.35]
Apr x@x
Apr  6 16:02:12 tempelhof postfix/smtpd[31788]: disconnect from unknown[69.94.131.35]
Apr  6 16:02:30 tempelhof postfix/smtpd[31797]: warning: hostname 69-94-131-35.nca.datanoc.com does not resolve to address 69.94.131.35: Name or service not known
Apr  6 16:02:30 tempelhof postfix/smtpd[31797]: connect from unknown[69.94.131.35]
Apr x@x
Apr  6 16:02:31 tempelhof postfix/smtpd[31797]: di........
-------------------------------

Jun  5 16:40:40 mail.srvfarm.net postfix/smtpd[3129285]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 16:40:43 mail.srvfarm.net postfix/smtpd[3131409]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 16:40:45 mail.srvfarm.net postfix/smtpd[3132025]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 16:40:46 mail.srvfarm.net postfix/smtpd[3131409]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 :

Jun  5 17:33:36 mail.srvfarm.net postfix/smtpd[3155924]: NOQUEUE: reject: RCPT from unknown[69.94.131.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 17:39:13 mail.srvfarm.net postfix/smtpd[3156526]: NOQUEUE: reject: RCPT from unknown[69.94.131.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 17:40:21 mail.srvfarm.net postfix/smtpd[3156526]: NOQUEUE: reject: RCPT from unknown[69.94.131.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 17:43:00 mail.srvfarm.net postfix/smtpd[3151339]: NOQUEUE: reject: RCPT from unknown[69.94.131.46]: 450 4.1.8 

Jun  4 14:28:33 mail.srvfarm.net postfix/smtpd[2521387]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  4 14:28:40 mail.srvfarm.net postfix/smtpd[2521387]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  4 14:28:40 mail.srvfarm.net postfix/smtpd[2515914]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  4 14:28:41 mail.srvfarm.net postfix/smtpd[2515915]: NOQUEUE: reject:

Postfix RBL failed

Postfix RBL failed

May 25 13:45:22 mail.srvfarm.net postfix/smtpd[244223]: NOQUEUE: reject: RCPT from unknown[69.94.131.42]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 25 13:45:46 mail.srvfarm.net postfix/smtpd[235686]: NOQUEUE: reject: RCPT from unknown[69.94.131.42]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 25 13:46:09 mail.srvfarm.net postfix/smtpd[245831]: NOQUEUE: reject: RCPT from unknown[69.94.131.42]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 25 13:46:52 mail.srvfarm.net postfix/smtpd[244198]: NOQUEUE: reject: RCPT from unknown[69.94.131.4

Postfix RBL failed

Spam detected 2020.05.18 08:09:20
blocked until 2020.06.12 04:40:43

Email Spam

Apr 24 23:55:27 mail.srvfarm.net postfix/smtpd[581299]: NOQUEUE: reject: RCPT from unknown[69.94.131.7]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 24 23:55:27 mail.srvfarm.net postfix/smtpd[577983]: NOQUEUE: reject: RCPT from unknown[69.94.131.7]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 24 23:55:27 mail.srvfarm.net postfix/smtpd[581296]: NOQUEUE: reject: RCPT from unknown[69.94.131.7]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 24 23:55:27 mail.srvfarm.net postfix/smtpd[581297

Apr 24 05:31:25 mail.srvfarm.net postfix/smtpd[197041]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 24 05:35:48 mail.srvfarm.net postfix/smtpd[197674]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 24 05:37:10 mail.srvfarm.net postfix/smtpd[193146]: NOQUEUE: reject: RCPT from unknown[69.94.131.41]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 24 05:37:10 mail.srvfarm.net postfix/smtpd[195518]: NOQUEUE: reject: RCP

Apr 23 11:51:45 web01.agentur-b-2.de postfix/smtpd[151314]: NOQUEUE: reject: RCPT from unknown[69.94.131.11]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 23 11:51:45 web01.agentur-b-2.de postfix/smtpd[148165]: NOQUEUE: reject: RCPT from unknown[69.94.131.11]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 23 11:51:45 web01.agentur-b-2.de postfix/smtpd[153585]: NOQUEUE: reject: RCPT from unknown[69.94.131.11]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 23 11:51:45 web01.agentur-b-2.de postfix/smtpd[153584]: NOQUEUE: reject: RCPT from unknown[69.94.131.11]: 45

Apr 22 05:53:25 mail.srvfarm.net postfix/smtpd[3209784]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:53:25 mail.srvfarm.net postfix/smtpd[3209785]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:53:25 mail.srvfarm.net postfix/smtpd[3209787]: NOQUEUE: reject: RCPT from unknown[69.94.131.25]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:53:26 mail.srvfarm.net postfix/smtpd[3209786]: NOQUEUE: reject: R

Apr 21 05:45:55 web01.agentur-b-2.de postfix/smtpd[1808934]: NOQUEUE: reject: RCPT from unknown[69.94.131.49]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 21 05:45:55 web01.agentur-b-2.de postfix/smtpd[1805329]: NOQUEUE: reject: RCPT from unknown[69.94.131.49]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 21 05:45:55 web01.agentur-b-2.de postfix/smtpd[1809140]: NOQUEUE: reject: RCPT from unknown[69.94.131.49]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 21 05:45:55 web01.agentur-b-2.de postfix/smtpd[1809222]: NOQUEUE: reject: RCPT from unknown[69.94.131.49]: 450 4.7.1 

Apr 19 05:39:16 mail.srvfarm.net postfix/smtpd[443325]: NOQUEUE: reject: RCPT from unknown[69.94.131.33]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 19 05:39:16 mail.srvfarm.net postfix/smtpd[439139]: NOQUEUE: reject: RCPT from unknown[69.94.131.33]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 19 05:39:16 mail.srvfarm.net postfix/smtpd[441854]: NOQUEUE: reject: RCPT from unknown[69.94.131.33]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 19 05:39:16 mail.srvfarm.net postfix/smtpd[439137]: NOQUEUE: reject: RCPT

Brute force attempt

06/23/2020-00:02:30.689954 45.145.66.11 Protocol: 6 ET SCAN NMAP -sS window 1024

$f2bV_matches

$f2bV_matches

2020-06-22T22:00:02.663702linuxbox-skyline auth[106338]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=crossdressers rhost=212.70.149.50
...

Port scan: Attack repeated for 24 hours

Jun 23 05:58:06 mellenthin sshd[10570]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.49.230.124  user=root
Jun 23 05:58:08 mellenthin sshd[10570]: Failed password for invalid user root from 37.49.230.124 port 56470 ssh2

$f2bV_matches

Jun 23 02:35:57 [host] sshd[20642]: Invalid user t
Jun 23 02:35:57 [host] sshd[20642]: pam_unix(sshd:
Jun 23 02:35:58 [host] sshd[20642]: Failed passwor

Jun 23 02:32:06 serwer sshd\[25784\]: Invalid user b from 46.105.148.212 port 56890
Jun 23 02:32:06 serwer sshd\[25784\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.105.148.212
Jun 23 02:32:07 serwer sshd\[25784\]: Failed password for invalid user b from 46.105.148.212 port 56890 ssh2
...

104.238.125.133 - - [23/Jun/2020:04:57:56 +0100] "POST /wp-login.php HTTP/1.1" 200 2435 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
104.238.125.133 - - [23/Jun/2020:04:57:58 +0100] "POST /wp-login.php HTTP/1.1" 200 2415 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
104.238.125.133 - - [23/Jun/2020:04:57:59 +0100] "POST /wp-login.php HTTP/1.1" 200 2415 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...

$f2bV_matches

Jun 23 05:57:53 OPSO sshd\[29140\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.200  user=root
Jun 23 05:57:55 OPSO sshd\[29140\]: Failed password for root from 112.85.42.200 port 27377 ssh2
Jun 23 05:57:58 OPSO sshd\[29140\]: Failed password for root from 112.85.42.200 port 27377 ssh2
Jun 23 05:58:02 OPSO sshd\[29140\]: Failed password for root from 112.85.42.200 port 27377 ssh2
Jun 23 05:58:06 OPSO sshd\[29140\]: Failed password for root from 112.85.42.200 port 27377 ssh2

Jun 22 23:27:00 scw-tender-jepsen sshd[20410]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.230.10
Jun 22 23:27:02 scw-tender-jepsen sshd[20410]: Failed password for invalid user usuario from 51.38.230.10 port 45968 ssh2

Jun 23 05:39:02 roki-contabo sshd\[19105\]: Invalid user dsa from 106.13.233.102
Jun 23 05:39:02 roki-contabo sshd\[19105\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.233.102
Jun 23 05:39:04 roki-contabo sshd\[19105\]: Failed password for invalid user dsa from 106.13.233.102 port 50074 ssh2
Jun 23 05:58:22 roki-contabo sshd\[19291\]: Invalid user postgres from 106.13.233.102
Jun 23 05:58:22 roki-contabo sshd\[19291\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.233.102
...