Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: Kineshma

Region: Ivanovskaya Oblast'

Country: Russia

Internet Service Provider: OJSC Rostelecom

Hostname: unknown

Organization: unknown

Usage Type: Fixed Line ISP

Comments:
Type Details Datetime
attackspam
 TCP (SYN) 81.20.104.50:9822 -> port 8000, len 44
2020-06-12 19:40:57
attackspam
Unauthorized connection attempt detected from IP address 81.20.104.50 to port 4567 [J]
2020-01-13 04:55:50
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 81.20.104.50
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 65327
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;81.20.104.50.			IN	A

;; AUTHORITY SECTION:
.			581	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020011201 1800 900 604800 86400

;; Query time: 82 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Jan 13 04:55:46 CST 2020
;; MSG SIZE  rcvd: 116
Host info
50.104.20.81.in-addr.arpa domain name pointer static-81-20-104-50.ivnet.ru.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
*** Can't find 50.104.20.81.in-addr.arpa.: No answer

Authoritative answers can be found from:

Related IP info:
Related comments:
IP Type Details Datetime
198.100.155.50 attackbots
Sep  3 06:46:42 SilenceServices sshd[28381]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.100.155.50
Sep  3 06:46:44 SilenceServices sshd[28381]: Failed password for invalid user pick from 198.100.155.50 port 39730 ssh2
Sep  3 06:50:47 SilenceServices sshd[29939]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.100.155.50
2019-09-03 15:00:55
92.222.88.30 attackbots
Sep  3 08:51:34 ubuntu-2gb-nbg1-dc3-1 sshd[2152]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.88.30
Sep  3 08:51:36 ubuntu-2gb-nbg1-dc3-1 sshd[2152]: Failed password for invalid user performer from 92.222.88.30 port 57390 ssh2
...
2019-09-03 15:42:09
51.89.41.12 attack
09/03/2019-01:08:05.969748 51.89.41.12 Protocol: 17 ET SCAN Sipvicious Scan
2019-09-03 15:01:58
177.152.35.158 attack
2019-09-03T10:13:02.160369enmeeting.mahidol.ac.th sshd\[21749\]: Invalid user soham from 177.152.35.158 port 50795
2019-09-03T10:13:02.175061enmeeting.mahidol.ac.th sshd\[21749\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.152.35.158
2019-09-03T10:13:04.002402enmeeting.mahidol.ac.th sshd\[21749\]: Failed password for invalid user soham from 177.152.35.158 port 50795 ssh2
...
2019-09-03 15:15:53
113.89.55.206 attackbots
firewall-block, port(s): 1433/tcp
2019-09-03 14:57:21
140.114.26.158 attackspam
Sep  3 03:49:13 ms-srv sshd[54436]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.114.26.158
Sep  3 03:49:15 ms-srv sshd[54436]: Failed password for invalid user cmsuser from 140.114.26.158 port 37820 ssh2
2019-09-03 15:29:40
183.207.181.138 attack
Sep  3 08:16:28 h2177944 sshd\[16091\]: Invalid user administrador from 183.207.181.138 port 50143
Sep  3 08:16:28 h2177944 sshd\[16091\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.207.181.138
Sep  3 08:16:30 h2177944 sshd\[16091\]: Failed password for invalid user administrador from 183.207.181.138 port 50143 ssh2
Sep  3 08:20:59 h2177944 sshd\[16237\]: Invalid user festival from 183.207.181.138 port 41276
...
2019-09-03 15:25:04
23.129.64.156 attack
Sep  1 07:20:16 mail sshd[14298]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.156  user=root
Sep  1 07:20:18 mail sshd[14298]: Failed password for root from 23.129.64.156 port 37289 ssh2
...
2019-09-03 15:06:50
51.75.122.16 attackbots
Sep  3 03:45:02 tuxlinux sshd[56933]: Invalid user victoria from 51.75.122.16 port 49986
Sep  3 03:45:02 tuxlinux sshd[56933]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.122.16 
Sep  3 03:45:02 tuxlinux sshd[56933]: Invalid user victoria from 51.75.122.16 port 49986
Sep  3 03:45:02 tuxlinux sshd[56933]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.122.16 
Sep  3 03:45:02 tuxlinux sshd[56933]: Invalid user victoria from 51.75.122.16 port 49986
Sep  3 03:45:02 tuxlinux sshd[56933]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.122.16 
Sep  3 03:45:03 tuxlinux sshd[56933]: Failed password for invalid user victoria from 51.75.122.16 port 49986 ssh2
...
2019-09-03 14:59:33
62.148.142.202 attackspambots
Sep  3 05:11:16 ubuntu-2gb-nbg1-dc3-1 sshd[18805]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.148.142.202
Sep  3 05:11:17 ubuntu-2gb-nbg1-dc3-1 sshd[18805]: Failed password for invalid user teo from 62.148.142.202 port 59778 ssh2
...
2019-09-03 15:17:25
182.18.208.27 attackspam
Sep  3 05:46:16 SilenceServices sshd[4662]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.18.208.27
Sep  3 05:46:18 SilenceServices sshd[4662]: Failed password for invalid user network2 from 182.18.208.27 port 59624 ssh2
Sep  3 05:51:21 SilenceServices sshd[6679]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.18.208.27
2019-09-03 15:23:18
45.55.67.128 attack
$f2bV_matches
2019-09-03 15:04:49
138.68.4.8 attackbotsspam
ssh failed login
2019-09-03 15:37:29
218.64.26.166 attackspam
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........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=218.64.26.166
2019-09-03 14:57:05
47.92.36.119 attackspam
Sep  3 00:59:54 h2177944 kernel: \[341841.068901\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=47.92.36.119 DST=85.214.117.9 LEN=328 TOS=0x00 PREC=0x00 TTL=39 ID=4162 PROTO=UDP SPT=34444 DPT=37959 LEN=308 
Sep  3 00:59:54 h2177944 kernel: \[341841.143429\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=47.92.36.119 DST=85.214.117.9 LEN=60 TOS=0x00 PREC=0x00 TTL=21 ID=24322 PROTO=TCP SPT=34355 DPT=44262 WINDOW=31337 RES=0x00 SYN URGP=0 
Sep  3 00:59:54 h2177944 kernel: \[341841.169853\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=47.92.36.119 DST=85.214.117.9 LEN=60 TOS=0x00 PREC=0x00 TTL=28 ID=16814 DF PROTO=TCP SPT=34356 DPT=44262 WINDOW=32768 RES=0x00 ACK URGP=0 
Sep  3 00:59:54 h2177944 kernel: \[341841.644321\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=47.92.36.119 DST=85.214.117.9 LEN=328 TOS=0x00 PREC=0x00 TTL=39 ID=4162 PROTO=UDP SPT=34444 DPT=37959 LEN=308 
Sep  3 00:59:55 h2177944 kernel: \[341841.718821\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=47.92.36.119 DST=85.214.117.9 LEN=60 TOS=0x00 PREC=0x00 TTL=25 ID=35509 PROTO=TCP
2019-09-03 15:15:14

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