Apr  2 05:24:38 mail.srvfarm.net postfix/smtpd[1752292]: NOQUEUE: reject: RCPT from depend.superacrepair.com[134.73.51.76]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr  2 05:24:38 mail.srvfarm.net postfix/smtpd[1751041]: NOQUEUE: reject: RCPT from depend.superacrepair.com[134.73.51.76]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr  2 05:24:38 mail.srvfarm.net postfix/smtpd[1753888]: NOQUEUE: reject: RCPT from depend.superacrepair.com[134.73.51.76]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr  2 05:24:39 mail.srvfarm.net postfix/smtpd[1752172]: NOQUEUE: reject: RCPT from depend.superacrepair.co

Apr  2 15:10:30 mail.srvfarm.net postfix/smtpd[1975768]: NOQUEUE: reject: RCPT from squirrel.superacrepair.com[134.73.51.96]: 554 5.7.1 : Relay access denied; from= to= proto=ESMTP helo=
Apr  2 15:13:04 mail.srvfarm.net postfix/smtpd[1975772]: NOQUEUE: reject: RCPT from squirrel.superacrepair.com[134.73.51.96]: 554 5.7.1 : Relay access denied; from= to= proto=ESMTP helo=
Apr  2 15:16:00 mail.srvfarm.net postfix/smtpd[1962002]: NOQUEUE: reject: RCPT from squirrel.superacrepair.com[134.73.51.96]: 554 5.7.1 : Relay access denied; from= to= proto=ESMTP helo=
Apr  2 15:16:02 mail.srvfarm.net postfix/smtpd[1978064]: NOQUEUE: reject: RCPT from squirrel.superacrepair.com[134.73.51.96]: 554 5.7.1 Service unavailab

Apr  2 05:37:50 web01.agentur-b-2.de postfix/smtpd[64779]: NOQUEUE: reject: RCPT from shocker.juntosms.com[134.73.51.53]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr  2 05:37:58 web01.agentur-b-2.de postfix/smtpd[64780]: NOQUEUE: reject: RCPT from shocker.juntosms.com[134.73.51.53]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr  2 05:39:38 web01.agentur-b-2.de postfix/smtpd[64779]: NOQUEUE: reject: RCPT from shocker.juntosms.com[134.73.51.53]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr  2 05:39:56 web01.agentur-b-2.de postfix/smtpd[64780]: NOQUEUE: reject: RCPT from shocker.juntosms.com[134.73

Apr  1 05:35:30 mail.srvfarm.net postfix/smtpd[1068652]: NOQUEUE: reject: RCPT from unknown[134.73.51.62]: 554 5.7.1 Service unavailable; Client host [134.73.51.62] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr  1 05:35:30 mail.srvfarm.net postfix/smtpd[1071960]: NOQUEUE: reject: RCPT from unknown[134.73.51.62]: 554 5.7.1 Service unavailable; Client host [134.73.51.62] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr  1 05:35:30 mail.srvfarm.net postfix/smtpd[1069650]: NOQUEUE: reject: RCPT from unknown[134.73.51.62]: 554 5.7.1 Service unavailable; Client host [134.73.51.62] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=

Mar 31 15:27:26 mail.srvfarm.net postfix/smtpd[605797]: NOQUEUE: reject: RCPT from unknown[134.73.51.37]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 15:27:30 mail.srvfarm.net postfix/smtpd[605800]: NOQUEUE: reject: RCPT from unknown[134.73.51.37]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 15:31:58 mail.srvfarm.net postfix/smtpd[619495]: NOQUEUE: reject: RCPT from unknown[134.73.51.37]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 15:35:15 mail.srvfarm.net postfix/smtpd[622924]: NOQUEUE: reject: RCPT

Mar 31 05:27:16 mail.srvfarm.net postfix/smtpd[361760]: NOQUEUE: reject: RCPT from unknown[134.73.51.12]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:28:14 mail.srvfarm.net postfix/smtpd[381494]: NOQUEUE: reject: RCPT from unknown[134.73.51.12]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:33:04 mail.srvfarm.net postfix/smtpd[377289]: NOQUEUE: reject: RCPT from unknown[134.73.51.12]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:33:18 mail.srvfarm.net postfix/smtpd[365658]: NOQUEUE: reject: RCPT from unknown[134.73.51.12]: 450 4.1.8 

Mar 31 05:25:53 mail.srvfarm.net postfix/smtpd[365653]: NOQUEUE: reject: RCPT from unknown[134.73.51.113]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:26:37 mail.srvfarm.net postfix/smtpd[365653]: NOQUEUE: reject: RCPT from unknown[134.73.51.113]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:27:07 mail.srvfarm.net postfix/smtpd[361760]: NOQUEUE: reject: RCPT from unknown[134.73.51.113]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:27:56 mail.srvfarm.net postfix/smtpd[364919]: NOQUEUE: reject: RCPT from unknown[134.73.51.113]: 450 4.1.8 <

Mar 31 05:42:52 mail.srvfarm.net postfix/smtpd[381494]: NOQUEUE: reject: RCPT from unknown[134.73.51.168]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:42:58 mail.srvfarm.net postfix/smtpd[383948]: NOQUEUE: reject: RCPT from unknown[134.73.51.168]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:43:28 mail.srvfarm.net postfix/smtpd[377289]: NOQUEUE: reject: RCPT from unknown[134.73.51.168]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 31 05:43:56 mail.srvfarm.net postfix/smtpd[377290

Mar 30 16:52:11 mail.srvfarm.net postfix/smtpd[1589027]: NOQUEUE: reject: RCPT from unknown[134.73.51.177]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 30 16:52:11 mail.srvfarm.net postfix/smtpd[1604476]: NOQUEUE: reject: RCPT from unknown[134.73.51.177]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 30 16:53:16 mail.srvfarm.net postfix/smtpd[1604431]: NOQUEUE: reject: RCPT from unknown[134.73.51.177]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 30 16:56:13 mail.srvfarm.net postfix/smtpd[1608170]: NOQUEUE: reject: RCPT from unknown[134.73.51.177]: 450 4.1.8 

Mar 29 05:41:35 mail.srvfarm.net postfix/smtpd[755834]: NOQUEUE: reject: RCPT from kinky.juntosms.com[134.73.51.40]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 29 05:45:17 mail.srvfarm.net postfix/smtpd[774355]: NOQUEUE: reject: RCPT from kinky.juntosms.com[134.73.51.40]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 29 05:46:32 mail.srvfarm.net postfix/smtpd[755491]: NOQUEUE: reject: RCPT from kinky.juntosms.com[134.73.51.40]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 29 05:48:27 mail.srvfarm.net postfix/smtpd[755834]: NOQUEUE: reject: RCPT from kinky.junt

Mar 29 05:41:45 mail.srvfarm.net postfix/smtpd[770786]: NOQUEUE: reject: RCPT from unknown[134.73.51.131]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 29 05:45:13 mail.srvfarm.net postfix/smtpd[774355]: NOQUEUE: reject: RCPT from unknown[134.73.51.131]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 29 05:48:25 mail.srvfarm.net postfix/smtpd[770789]: NOQUEUE: reject: RCPT from unknown[134.73.51.131]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 29 05:50:03 mail.srvfarm.net postfix/smtpd[774394]: NOQUEUE: reject: RCPT from unknown[134.73.51.131]: 450 4.1.8 

Mar 28 04:41:31 mail.srvfarm.net postfix/smtpd[160963]: NOQUEUE: reject: RCPT from unknown[134.73.51.221]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 28 04:46:02 mail.srvfarm.net postfix/smtpd[160577]: NOQUEUE: reject: RCPT from unknown[134.73.51.221]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 28 04:46:02 mail.srvfarm.net postfix/smtpd[160577]: NOQUEUE: reject: RCPT from unknown[134.73.51.221]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 28 04:49:26 mail.srvfarm.net postfix/smtpd[1602

Mar 27 05:42:05 mail.srvfarm.net postfix/smtpd[3723724]: NOQUEUE: reject: RCPT from unknown[134.73.51.153]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 27 05:42:05 mail.srvfarm.net postfix/smtpd[3721876]: NOQUEUE: reject: RCPT from unknown[134.73.51.153]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 27 05:42:05 mail.srvfarm.net postfix/smtpd[3723721]: NOQUEUE: reject: RCPT from unknown[134.73.51.153]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 27 05:42:05 mail.srvfarm.net postfix/smtpd[3721944]: NOQUEUE: reject: RCPT from unknown[134.73.51.153]:

Mar 27 06:01:19 mail.srvfarm.net postfix/smtpd[3722006]: NOQUEUE: reject: RCPT from unknown[134.73.51.215]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 27 06:02:10 mail.srvfarm.net postfix/smtpd[3722006]: NOQUEUE: reject: RCPT from unknown[134.73.51.215]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 27 06:03:07 mail.srvfarm.net postfix/smtpd[3721909]: NOQUEUE: reject: RCPT from unknown[134.73.51.215]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 27 06:03:18 mail.srvfarm.net postfix/smtpd[3722006]: NOQUEUE: reject: RCPT from unknown[134.73.51.215]:

Mar 23 15:42:08 web01 postfix/smtpd[13317]: connect from arrange.yojaana.com[134.73.51.173]
Mar 23 15:42:09 web01 policyd-spf[13319]: None; identhostnamey=helo; client-ip=134.73.51.173; helo=arrange.tmtsuarl.com; envelope-from=x@x
Mar 23 15:42:09 web01 policyd-spf[13319]: Pass; identhostnamey=mailfrom; client-ip=134.73.51.173; helo=arrange.tmtsuarl.com; envelope-from=x@x
Mar x@x
Mar 23 15:42:10 web01 postfix/smtpd[13317]: disconnect from arrange.yojaana.com[134.73.51.173]
Mar 23 15:47:38 web01 postfix/smtpd[13627]: connect from arrange.yojaana.com[134.73.51.173]
Mar 23 15:47:38 web01 policyd-spf[13660]: None; identhostnamey=helo; client-ip=134.73.51.173; helo=arrange.tmtsuarl.com; envelope-from=x@x
Mar 23 15:47:38 web01 policyd-spf[13660]: Pass; identhostnamey=mailfrom; client-ip=134.73.51.173; helo=arrange.tmtsuarl.com; envelope-from=x@x
Mar x@x
Mar 23 15:47:39 web01 postfix/smtpd[13627]: disconnect from arrange.yojaana.com[134.73.51.173]
Mar 23 15:51:19 web01 postfix/........
-------------------------------

Mar 23 15:57:28 web01 postfix/smtpd[14304]: connect from public.imphostnamesol.com[134.73.51.235]
Mar 23 15:57:29 web01 policyd-spf[14464]: None; identhostnamey=helo; client-ip=134.73.51.235; helo=public.tempbigh.com; envelope-from=x@x
Mar 23 15:57:29 web01 policyd-spf[14464]: Pass; identhostnamey=mailfrom; client-ip=134.73.51.235; helo=public.tempbigh.com; envelope-from=x@x
Mar x@x
Mar 23 15:57:29 web01 postfix/smtpd[14304]: disconnect from public.imphostnamesol.com[134.73.51.235]
Mar 23 15:59:41 web01 postfix/smtpd[14109]: connect from public.imphostnamesol.com[134.73.51.235]
Mar 23 15:59:41 web01 policyd-spf[14515]: None; identhostnamey=helo; client-ip=134.73.51.235; helo=public.tempbigh.com; envelope-from=x@x
Mar 23 15:59:41 web01 policyd-spf[14515]: Pass; identhostnamey=mailfrom; client-ip=134.73.51.235; helo=public.tempbigh.com; envelope-from=x@x
Mar x@x
Mar 23 15:59:42 web01 postfix/smtpd[14109]: disconnect from public.imphostnamesol.com[134.73.51.235]
Mar 23 16:........
-------------------------------

Jun  4 21:01:02 IngegnereFirenze sshd[9082]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.202  user=root
...

Jun  4 22:20:11 server sshd[45517]: Failed password for root from 190.64.135.122 port 34454 ssh2
Jun  4 22:22:46 server sshd[47520]: Failed password for root from 190.64.135.122 port 52668 ssh2
Jun  4 22:24:19 server sshd[48657]: Failed password for root from 190.64.135.122 port 36264 ssh2

Automatic report - Port Scan Attack

Jun  4 22:17:58 v22019038103785759 sshd\[24653\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.174.66.229  user=root
Jun  4 22:18:00 v22019038103785759 sshd\[24653\]: Failed password for root from 107.174.66.229 port 50094 ssh2
Jun  4 22:23:09 v22019038103785759 sshd\[25024\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.174.66.229  user=root
Jun  4 22:23:11 v22019038103785759 sshd\[25024\]: Failed password for root from 107.174.66.229 port 58632 ssh2
Jun  4 22:24:27 v22019038103785759 sshd\[25117\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.174.66.229  user=root
...

Unauthorized SSH login attempts

Jun  3 20:41:47 our-server-hostname postfix/smtpd[22361]: connect from unknown[103.233.123.250]
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x
Jun x@x


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=103.233.123.250

Jun  4 22:16:05 legacy sshd[1348]: Failed password for root from 182.16.110.190 port 37496 ssh2
Jun  4 22:20:19 legacy sshd[1441]: Failed password for root from 182.16.110.190 port 60718 ssh2
...

SSH Brute Force

Jun  4 22:23:37 mail postfix/smtpd[8536]: warning: unknown[180.76.134.43]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun  4 22:23:44 mail postfix/smtpd[8536]: warning: unknown[180.76.134.43]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun  4 22:23:55 mail postfix/smtpd[8536]: warning: unknown[180.76.134.43]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Jun  3 12:43:54 localhost sshd[1038634]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.50.19.175  user=r.r
Jun  3 12:43:56 localhost sshd[1038634]: Failed password for r.r from 194.50.19.175 port 57171 ssh2
Jun  3 13:16:24 localhost sshd[1048828]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.50.19.175  user=r.r
Jun  3 13:16:26 localhost sshd[1048828]: Failed password for r.r from 194.50.19.175 port 55353 ssh2
Jun  3 13:29:46 localhost sshd[1051936]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.50.19.175  user=r.r
Jun  3 13:29:47 localhost sshd[1051936]: Failed password for r.r from 194.50.19.175 port 55116 ssh2
Jun  3 13:42:43 localhost sshd[1056420]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.50.19.175  user=r.r
Jun  3 13:42:45 localhost sshd[1056420]: Failed password for r.r from 194........
------------------------------

Brute force attempt

(sshd) Failed SSH login from 218.92.0.158 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun  4 22:24:30 amsweb01 sshd[24637]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.158  user=root
Jun  4 22:24:32 amsweb01 sshd[24657]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.158  user=root
Jun  4 22:24:32 amsweb01 sshd[24637]: Failed password for root from 218.92.0.158 port 9954 ssh2
Jun  4 22:24:34 amsweb01 sshd[24657]: Failed password for root from 218.92.0.158 port 55529 ssh2
Jun  4 22:24:35 amsweb01 sshd[24637]: Failed password for root from 218.92.0.158 port 9954 ssh2

Jun  4 20:24:27 ip-172-31-61-156 sshd[27638]: Failed password for root from 52.80.172.73 port 57267 ssh2
Jun  4 20:24:29 ip-172-31-61-156 sshd[27641]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.80.172.73  user=root
Jun  4 20:24:31 ip-172-31-61-156 sshd[27641]: Failed password for root from 52.80.172.73 port 57341 ssh2
Jun  4 20:24:33 ip-172-31-61-156 sshd[27646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=52.80.172.73  user=root
Jun  4 20:24:35 ip-172-31-61-156 sshd[27646]: Failed password for root from 52.80.172.73 port 57424 ssh2
...

(sshd) Failed SSH login from 84.236.96.65 (HU/Hungary/84-236-96-65.pool.digikabel.hu): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun  4 22:22:31 amsweb01 sshd[24051]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=84.236.96.65  user=root
Jun  4 22:22:33 amsweb01 sshd[24051]: Failed password for root from 84.236.96.65 port 41563 ssh2
Jun  4 22:25:48 amsweb01 sshd[25059]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=84.236.96.65  user=root
Jun  4 22:25:50 amsweb01 sshd[25059]: Failed password for root from 84.236.96.65 port 43637 ssh2
Jun  4 22:29:01 amsweb01 sshd[25874]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=84.236.96.65  user=root

Jun  4 16:55:21 ny01 sshd[11976]: Failed password for root from 114.67.102.54 port 52836 ssh2
Jun  4 16:58:33 ny01 sshd[12581]: Failed password for root from 114.67.102.54 port 47122 ssh2