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: unknown

Region: unknown

Country: Germany

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 139.21.126.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 44949
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;139.21.126.21.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025011001 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Jan 11 10:10:11 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 21.126.21.139.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.126.21.139.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
51.178.51.173 attackspam
2020-03-10T10:19:35.080192host3.slimhost.com.ua sshd[1937081]: Failed password for root from 51.178.51.173 port 37016 ssh2
2020-03-10T10:19:57.470382host3.slimhost.com.ua sshd[1937438]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=173.ip-51-178-51.eu  user=root
2020-03-10T10:19:59.246189host3.slimhost.com.ua sshd[1937438]: Failed password for root from 51.178.51.173 port 54288 ssh2
2020-03-10T10:20:22.175580host3.slimhost.com.ua sshd[1938092]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=173.ip-51-178-51.eu  user=root
2020-03-10T10:20:24.053203host3.slimhost.com.ua sshd[1938092]: Failed password for root from 51.178.51.173 port 43328 ssh2
...
2020-03-10 23:45:09
183.89.57.103 attackspam
Mar 10 10:14:40 srv1 sshd[16890]: Did not receive identification string from 183.89.57.103
Mar 10 10:14:45 srv1 sshd[16892]: Address 183.89.57.103 maps to mx-ll-183.89.57-103.dynamic.3bb.in.th, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Mar 10 10:14:45 srv1 sshd[16892]: Invalid user 888888 from 183.89.57.103
Mar 10 10:14:45 srv1 sshd[16892]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.89.57.103 
Mar 10 10:14:48 srv1 sshd[16892]: Failed password for invalid user 888888 from 183.89.57.103 port 12945 ssh2
Mar 10 10:14:48 srv1 sshd[16893]: Connection closed by 183.89.57.103


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=183.89.57.103
2020-03-10 23:11:15
60.174.192.89 attackspam
Mar 10 16:29:46 server sshd\[20708\]: Invalid user robot from 60.174.192.89
Mar 10 16:29:46 server sshd\[20708\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.174.192.89 
Mar 10 16:29:48 server sshd\[20708\]: Failed password for invalid user robot from 60.174.192.89 port 56133 ssh2
Mar 10 16:42:09 server sshd\[23399\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.174.192.89  user=root
Mar 10 16:42:11 server sshd\[23399\]: Failed password for root from 60.174.192.89 port 36628 ssh2
...
2020-03-10 23:24:40
62.86.203.177 attackspambots
From CCTV User Interface Log
...::ffff:62.86.203.177 - - [10/Mar/2020:05:21:20 +0000] "-" 400 179
...
2020-03-10 23:03:14
36.85.69.248 attack
Lines containing failures of 36.85.69.248
Mar 10 05:18:41 penfold sshd[24059]: Did not receive identification string from 36.85.69.248 port 63904
Mar 10 05:18:48 penfold sshd[24071]: Invalid user service from 36.85.69.248 port 8590
Mar 10 05:18:48 penfold sshd[24070]: Invalid user service from 36.85.69.248 port 8585
Mar 10 05:18:48 penfold sshd[24070]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.85.69.248 
Mar 10 05:18:49 penfold sshd[24071]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.85.69.248 
Mar 10 05:18:51 penfold sshd[24070]: Failed password for invalid user service from 36.85.69.248 port 8585 ssh2
Mar 10 05:18:52 penfold sshd[24071]: Failed password for invalid user service from 36.85.69.248 port 8590 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=36.85.69.248
2020-03-10 23:35:56
85.105.192.70 attackbotsspam
Automatic report - Port Scan Attack
2020-03-10 23:22:06
45.143.220.214 attackspam
" "
2020-03-10 23:50:08
192.241.234.86 attackbots
[portscan] tcp/993 [imaps]
*(RWIN=65535)(03101340)
2020-03-10 23:39:44
168.235.74.112 attack
Mar  9 03:52:40 xxxxxxx8434580 sshd[29799]: Address 168.235.74.112 maps to staretta.com, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Mar  9 03:52:40 xxxxxxx8434580 sshd[29799]: Invalid user contact from 168.235.74.112
Mar  9 03:52:40 xxxxxxx8434580 sshd[29799]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.235.74.112 
Mar  9 03:52:42 xxxxxxx8434580 sshd[29799]: Failed password for invalid user contact from 168.235.74.112 port 58142 ssh2
Mar  9 03:52:42 xxxxxxx8434580 sshd[29799]: Received disconnect from 168.235.74.112: 11: Bye Bye [preauth]
Mar  9 04:04:09 xxxxxxx8434580 sshd[29889]: Address 168.235.74.112 maps to staretta.com, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Mar  9 04:04:09 xxxxxxx8434580 sshd[29889]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.235.74.112  user=r.r
Mar  9 04:04:11 xxxxxxx8434580 sshd[29889]: Fa........
-------------------------------
2020-03-10 23:42:05
103.107.245.45 attackspam
firewall-block, port(s): 1433/tcp
2020-03-10 23:16:24
37.41.223.166 attackbots
Spam mails sent to address hacked/leaked from Nexus Mods in July 2013
2020-03-10 23:37:43
36.90.11.182 attackspam
Mar 10 10:16:15 srv0 sshd[34101]: Invalid user support from 36.90.11.182 port 20886
Mar 10 10:16:16 srv0 sshd[34101]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.90.11.182
Mar 10 10:16:18 srv0 sshd[34101]: Failed password for invalid user support from 36.90.11.182 port 20886 ssh2
...

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=36.90.11.182
2020-03-10 23:19:24
194.105.205.42 attackspam
Mar 10 15:11:42 vpn01 sshd[24685]: Failed password for root from 194.105.205.42 port 34942 ssh2
...
2020-03-10 23:02:14
216.209.43.253 attack
2020-03-10T15:46:10.950975vps751288.ovh.net sshd\[9785\]: Invalid user chenyifan from 216.209.43.253 port 36322
2020-03-10T15:46:10.959978vps751288.ovh.net sshd\[9785\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=stcton1104w-grc-09-216-209-43-253.dsl.bell.ca
2020-03-10T15:46:13.770345vps751288.ovh.net sshd\[9785\]: Failed password for invalid user chenyifan from 216.209.43.253 port 36322 ssh2
2020-03-10T15:47:55.338726vps751288.ovh.net sshd\[9789\]: Invalid user wusifan from 216.209.43.253 port 37342
2020-03-10T15:47:55.348866vps751288.ovh.net sshd\[9789\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=stcton1104w-grc-09-216-209-43-253.dsl.bell.ca
2020-03-10 23:36:36
2.45.105.77 attackspam
Automatic report - Port Scan Attack
2020-03-10 23:22:32

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