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

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 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........
-------------------------------

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  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 

02/24/2020-05:58:05.228160 185.220.102.8 Protocol: 6 ET TOR Known Tor Exit Node Traffic group 34

02/24/2020-05:58:16.303253 87.120.37.79 Protocol: 6 ET TOR Known Tor Exit Node Traffic group 85

Feb 24 05:57:50 debian-2gb-nbg1-2 kernel: \[4779472.049592\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=218.86.199.24 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=50 ID=65226 PROTO=TCP SPT=34317 DPT=23 WINDOW=26509 RES=0x00 SYN URGP=0

1582520237 - 02/24/2020 05:57:17 Host: 114.45.252.179/114.45.252.179 Port: 445 TCP Blocked

1582520231 - 02/24/2020 05:57:11 Host: 123.16.216.88/123.16.216.88 Port: 445 TCP Blocked

45.95.168.120 - - [24/Feb/2020:09:42:06 +0400] "POST /GponForm/diag_Form?style/ HTTP/1.1" 502 157 "-" "curl/7.3.2"
...

02/24/2020-05:57:33.383531 51.15.117.50 Protocol: 6 ET TOR Known Tor Exit Node Traffic group 69

suspicious action Mon, 24 Feb 2020 01:57:11 -0300

Feb 24 05:38:20 marvibiene sshd[7042]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.31.135  user=root
Feb 24 05:38:23 marvibiene sshd[7042]: Failed password for root from 222.186.31.135 port 16424 ssh2
Feb 24 05:38:24 marvibiene sshd[7042]: Failed password for root from 222.186.31.135 port 16424 ssh2
Feb 24 05:38:20 marvibiene sshd[7042]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.31.135  user=root
Feb 24 05:38:23 marvibiene sshd[7042]: Failed password for root from 222.186.31.135 port 16424 ssh2
Feb 24 05:38:24 marvibiene sshd[7042]: Failed password for root from 222.186.31.135 port 16424 ssh2
...

[portscan] Port scan

Feb 24 07:13:25 takio sshd[28884]: Invalid user novogrow from 212.164.228.99 port 57664
Feb 24 07:20:53 takio sshd[28921]: Invalid user novogrow from 212.164.228.99 port 45792
Feb 24 07:24:32 takio sshd[28956]: Invalid user oracle from 212.164.228.99 port 7640

Feb 24 04:57:14 ms-srv sshd[833]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=95.89.117.5  user=root
Feb 24 04:57:16 ms-srv sshd[833]: Failed password for invalid user root from 95.89.117.5 port 56370 ssh2

port scan and connect, tcp 23 (telnet)

suspicious action Mon, 24 Feb 2020 01:58:07 -0300

1582520236 - 02/24/2020 05:57:16 Host: 188.159.76.172/188.159.76.172 Port: 445 TCP Blocked