Mar 12 05:34:01 web01 postfix/smtpd[4246]: warning: hostname 69-94-141-83.nca.datanoc.com does not resolve to address 69.94.141.83
Mar 12 05:34:01 web01 postfix/smtpd[4246]: connect from unknown[69.94.141.83]
Mar 12 05:34:01 web01 policyd-spf[4251]: None; identhostnamey=helo; client-ip=69.94.141.83; helo=volcano.1nosnore-sk.com; envelope-from=x@x
Mar 12 05:34:01 web01 policyd-spf[4251]: Pass; identhostnamey=mailfrom; client-ip=69.94.141.83; helo=volcano.1nosnore-sk.com; envelope-from=x@x
Mar x@x
Mar 12 05:34:01 web01 postfix/smtpd[4246]: disconnect from unknown[69.94.141.83]
Mar 16 05:22:27 web01 postfix/smtpd[10701]: warning: hostname 69-94-141-83.nca.datanoc.com does not resolve to address 69.94.141.83
Mar 16 05:22:27 web01 postfix/smtpd[10701]: connect from unknown[69.94.141.83]
Mar 16 05:22:27 web01 policyd-spf[10707]: None; identhostnamey=helo; client-ip=69.94.141.83; helo=volcano.tcheko.com; envelope-from=x@x
Mar 16 05:22:27 web01 policyd-spf[10707]: Pass; identho........
-------------------------------

2020-08-01 15:40:24.132355-0500  localhost smtpd[87819]: NOQUEUE: reject: RCPT from unknown[69.94.141.98]: 554 5.7.1 Service unavailable; Client host [69.94.141.98] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=

Mar 24 00:22:16 web01 postfix/smtpd[7559]: warning: hostname 69-94-141-68.nca.datanoc.com does not resolve to address 69.94.141.68
Mar 24 00:22:16 web01 postfix/smtpd[7559]: connect from unknown[69.94.141.68]
Mar 24 00:22:17 web01 policyd-spf[8166]: None; identhostnamey=helo; client-ip=69.94.141.68; helo=common.1nosnore-sk.com; envelope-from=x@x
Mar 24 00:22:17 web01 policyd-spf[8166]: Pass; identhostnamey=mailfrom; client-ip=69.94.141.68; helo=common.1nosnore-sk.com; envelope-from=x@x
Mar x@x
Mar 24 00:22:17 web01 postfix/smtpd[7559]: disconnect from unknown[69.94.141.68]
Mar 24 00:25:28 web01 postfix/smtpd[8332]: warning: hostname 69-94-141-68.nca.datanoc.com does not resolve to address 69.94.141.68
Mar 24 00:25:28 web01 postfix/smtpd[8332]: connect from unknown[69.94.141.68]
Mar 24 00:25:28 web01 policyd-spf[8337]: None; identhostnamey=helo; client-ip=69.94.141.68; helo=common.1nosnore-sk.com; envelope-from=x@x
Mar 24 00:25:28 web01 policyd-spf[8337]: Pass; identhost........
-------------------------------

Email Spam

Email Spam

Mar 22 05:32:26 mail.srvfarm.net postfix/smtpd[546752]: NOQUEUE: reject: RCPT from unknown[69.94.141.56]: 554 5.7.1 Service unavailable; Client host [69.94.141.56] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Mar 22 05:34:14 mail.srvfarm.net postfix/smtpd[561111]: NOQUEUE: reject: RCPT from unknown[69.94.141.56]: 554 5.7.1 Service unavailable; Client host [69.94.141.56] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Mar 22 05:34:14 mail.srvfarm.net postfix/smtpd[562348]: NOQUEUE: reject: RCPT from unknown[69.94.141.56]: 554 5.7.1 Service unavailable; Client host [69.94.141.56] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP

Mar 17 00:28:53 web01 postfix/smtpd[19162]: warning: hostname 69-94-141-74.nca.datanoc.com does not resolve to address 69.94.141.74
Mar 17 00:28:53 web01 postfix/smtpd[19162]: connect from unknown[69.94.141.74]
Mar 17 00:28:53 web01 policyd-spf[20223]: None; identhostnamey=helo; client-ip=69.94.141.74; helo=grateful.1nosnore-sk.com; envelope-from=x@x
Mar 17 00:28:53 web01 policyd-spf[20223]: Pass; identhostnamey=mailfrom; client-ip=69.94.141.74; helo=grateful.1nosnore-sk.com; envelope-from=x@x
Mar x@x
Mar 17 00:28:54 web01 postfix/smtpd[19162]: disconnect from unknown[69.94.141.74]
Mar 17 00:29:44 web01 postfix/smtpd[19162]: warning: hostname 69-94-141-74.nca.datanoc.com does not resolve to address 69.94.141.74
Mar 17 00:29:44 web01 postfix/smtpd[19162]: connect from unknown[69.94.141.74]
Mar 17 00:29:44 web01 policyd-spf[20223]: None; identhostnamey=helo; client-ip=69.94.141.74; helo=grateful.1nosnore-sk.com; envelope-from=x@x
Mar 17 00:29:44 web01 policyd-spf[20223]: ........
-------------------------------

Mar 13 05:29:45 mail.srvfarm.net postfix/smtpd[2287632]: NOQUEUE: reject: RCPT from unknown[69.94.141.94]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 13 05:31:52 mail.srvfarm.net postfix/smtpd[2288927]: NOQUEUE: reject: RCPT from unknown[69.94.141.94]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 13 05:32:41 mail.srvfarm.net postfix/smtpd[2288980]: NOQUEUE: reject: RCPT from unknown[69.94.141.94]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 13 05:32:45 mail.srvfarm.net postfix/smtpd[2289178]: NOQUEUE: reject: RCPT f

Mar 12 14:30:45 mail.srvfarm.net postfix/smtpd[1850439]: NOQUEUE: reject: RCPT from unknown[69.94.141.44]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 12 14:30:45 mail.srvfarm.net postfix/smtpd[1850351]: NOQUEUE: reject: RCPT from unknown[69.94.141.44]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 12 14:30:45 mail.srvfarm.net postfix/smtpd[1852675]: NOQUEUE: reject: RCPT from unknown[69.94.141.44]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 12 14:30:45 mail.srvfarm.net postfix/smtpd[1837190]: NOQUEUE: reject: RCPT from unknown[69.94.141.44]: 450 4.1.8 :

Mar 12 05:32:49 mail.srvfarm.net postfix/smtpd[1659239]: NOQUEUE: reject: RCPT from unknown[69.94.141.78]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 12 05:32:54 mail.srvfarm.net postfix/smtpd[1659239]: NOQUEUE: reject: RCPT from unknown[69.94.141.78]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 12 05:32:57 mail.srvfarm.net postfix/smtpd[1659242]: NOQUEUE: reject: RCPT from unknown[69.94.141.78]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 12 05:32:57 mail.srvfarm.net postfix/smtpd[1659045]: NOQUEUE: reject: RCPT from unknown[69.94.141.78]: 4

Mar 10 04:24:56 mail.srvfarm.net postfix/smtpd[332242]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 10 04:27:38 mail.srvfarm.net postfix/smtpd[307894]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 10 04:27:46 mail.srvfarm.net postfix/smtpd[332600]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 10 04:28:18 mail.srvfarm.net postfix/smtpd[332214]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 

Mar  9 14:28:43 mail.srvfarm.net postfix/smtpd[4074749]: NOQUEUE: reject: RCPT from unknown[69.94.141.55]: 554 5.7.1 Service unavailable; Client host [69.94.141.55] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?69.94.141.55; from= to= proto=ESMTP helo=
Mar  9 14:28:43 mail.srvfarm.net postfix/smtpd[4074833]: NOQUEUE: reject: RCPT from unknown[69.94.141.55]: 554 5.7.1 Service unavailable; Client host [69.94.141.55] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?69.94.141.55; from= to= proto=ESMTP helo=
Mar  9 14:28:45 mail.srvfarm.net postfix/smtpd[4074830]: NOQUEUE: reject: RCPT from unknown[69.94.141.55]: 554 5.7.1 Service unavailable; Client host [69.94.141.55] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?69.94.141.55; from=

Mar  9 04:23:12 web01 postfix/smtpd[11537]: warning: hostname 69-94-141-89.nca.datanoc.com does not resolve to address 69.94.141.89
Mar  9 04:23:12 web01 postfix/smtpd[11537]: connect from unknown[69.94.141.89]
Mar  9 04:23:12 web01 policyd-spf[11543]: None; identhostnamey=helo; client-ip=69.94.141.89; helo=agree.1nosnore-sk.com; envelope-from=x@x
Mar  9 04:23:12 web01 policyd-spf[11543]: Pass; identhostnamey=mailfrom; client-ip=69.94.141.89; helo=agree.1nosnore-sk.com; envelope-from=x@x
Mar x@x
Mar  9 04:23:12 web01 postfix/smtpd[11537]: disconnect from unknown[69.94.141.89]
Mar  9 04:25:57 web01 postfix/smtpd[11537]: warning: hostname 69-94-141-89.nca.datanoc.com does not resolve to address 69.94.141.89
Mar  9 04:25:57 web01 postfix/smtpd[11537]: connect from unknown[69.94.141.89]
Mar  9 04:25:57 web01 policyd-spf[12324]: None; identhostnamey=helo; client-ip=69.94.141.89; helo=agree.1nosnore-sk.com; envelope-from=x@x
Mar  9 04:25:57 web01 policyd-spf[12324]: Pass; ide........
-------------------------------

Mar  8 05:44:26 mail.srvfarm.net postfix/smtpd[3235194]: NOQUEUE: reject: RCPT from unknown[69.94.141.95]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  8 05:44:31 mail.srvfarm.net postfix/smtpd[3235189]: NOQUEUE: reject: RCPT from unknown[69.94.141.95]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  8 05:45:24 mail.srvfarm.net postfix/smtpd[3235202]: NOQUEUE: reject: RCPT from unknown[69.94.141.95]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  8 05:45:25 mail.srvfarm.net postfix/smtpd[3235195]: NOQUEUE: reject: RCPT from unknown[69.94.141.95]: 450 4.1.8 : Sender address re

Mar  7 06:34:52 mail.srvfarm.net postfix/smtpd[2613287]: NOQUEUE: reject: RCPT from unknown[69.94.141.67]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  7 06:34:52 mail.srvfarm.net postfix/smtpd[2609381]: NOQUEUE: reject: RCPT from unknown[69.94.141.67]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  7 06:34:52 mail.srvfarm.net postfix/smtpd[2613524]: NOQUEUE: reject: RCPT from unknown[69.94.141.67]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  7 06:34:52 mail.srvfarm.net postfix/smtpd[2613289]: NOQUEUE: reject: RCPT from unknown[69.94.141.67]: 450 4.1.8 : Sender

Mar  6 05:32:21 mail.srvfarm.net postfix/smtpd[1924628]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  6 05:32:32 mail.srvfarm.net postfix/smtpd[1924580]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  6 05:33:36 mail.srvfarm.net postfix/smtpd[1924638]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  6 05:33:36 mail.srvfarm.net postfix/smtpd[1922939]: NOQUEUE: reject: RCPT from unknown[69.94.141.46]: 450 4.1.8 

Jul 27 14:24:34 inter-technics sshd[32747]: Invalid user croissant from 125.141.56.231 port 32920
Jul 27 14:24:34 inter-technics sshd[32747]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.141.56.231
Jul 27 14:24:34 inter-technics sshd[32747]: Invalid user croissant from 125.141.56.231 port 32920
Jul 27 14:24:36 inter-technics sshd[32747]: Failed password for invalid user croissant from 125.141.56.231 port 32920 ssh2
Jul 27 14:28:42 inter-technics sshd[474]: Invalid user ftpuser from 125.141.56.231 port 41190
...

failed root login

2020-07-27T14:51:27.543957mail.standpoint.com.ua sshd[12025]: Invalid user prueba from 188.166.147.211 port 47740
2020-07-27T14:51:27.548032mail.standpoint.com.ua sshd[12025]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.147.211
2020-07-27T14:51:27.543957mail.standpoint.com.ua sshd[12025]: Invalid user prueba from 188.166.147.211 port 47740
2020-07-27T14:51:29.802305mail.standpoint.com.ua sshd[12025]: Failed password for invalid user prueba from 188.166.147.211 port 47740 ssh2
2020-07-27T14:55:23.641448mail.standpoint.com.ua sshd[12989]: Invalid user admin from 188.166.147.211 port 42778
...

MultiHost/MultiPort Probe, Scan, Hack -

GET /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php HTTP/1.1

Jul 27 14:50:33 vps sshd[167976]: Failed password for root from 222.186.42.155 port 50958 ssh2
Jul 27 14:50:36 vps sshd[167976]: Failed password for root from 222.186.42.155 port 50958 ssh2
Jul 27 14:50:45 vps sshd[168533]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.155  user=root
Jul 27 14:50:46 vps sshd[168533]: Failed password for root from 222.186.42.155 port 20000 ssh2
Jul 27 14:50:48 vps sshd[168533]: Failed password for root from 222.186.42.155 port 20000 ssh2
...

Automatic report - Port Scan Attack

Jul 27 13:52:42 vps647732 sshd[7060]: Failed password for ubuntu from 129.204.28.114 port 38142 ssh2
...

Jul 27 11:52:16 game-panel sshd[11469]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.137.211
Jul 27 11:52:18 game-panel sshd[11469]: Failed password for invalid user dtc from 51.77.137.211 port 47124 ssh2
Jul 27 11:56:23 game-panel sshd[11694]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.137.211

2020-07-27T15:00:46.854741vps773228.ovh.net sshd[21214]: Failed password for root from 222.186.169.192 port 26630 ssh2
2020-07-27T15:00:49.906577vps773228.ovh.net sshd[21214]: Failed password for root from 222.186.169.192 port 26630 ssh2
2020-07-27T15:00:52.703022vps773228.ovh.net sshd[21214]: Failed password for root from 222.186.169.192 port 26630 ssh2
2020-07-27T15:00:56.111494vps773228.ovh.net sshd[21214]: Failed password for root from 222.186.169.192 port 26630 ssh2
2020-07-27T15:00:59.399026vps773228.ovh.net sshd[21214]: Failed password for root from 222.186.169.192 port 26630 ssh2
...

Brute forcing email accounts

Jul 27 15:15:18 nextcloud sshd\[12561\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.226  user=root
Jul 27 15:15:21 nextcloud sshd\[12561\]: Failed password for root from 222.186.173.226 port 21076 ssh2
Jul 27 15:15:24 nextcloud sshd\[12561\]: Failed password for root from 222.186.173.226 port 21076 ssh2

Jul 27 14:58:38 minden010 sshd[25692]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.165.210.176
Jul 27 14:58:40 minden010 sshd[25692]: Failed password for invalid user ftpuser from 188.165.210.176 port 35120 ssh2
Jul 27 15:02:58 minden010 sshd[27120]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.165.210.176
...

Invalid user rahul from 122.51.45.240 port 57100

Jul 27 06:56:16 s158375 sshd[4367]: Failed password for invalid user ubuntu from 191.8.88.128 port 46510 ssh2