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: None

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 <<>> 253.21.240.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50785
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;253.21.240.81.			IN	A

;; AUTHORITY SECTION:
.			136	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022092200 1800 900 604800 86400

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Sep 22 18:53:21 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 81.240.21.253.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.240.21.253.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
14.225.17.9 attack
2019-09-02 01:27:29,783 fail2ban.actions        [804]: NOTICE  [sshd] Ban 14.225.17.9
2019-09-02 04:35:53,232 fail2ban.actions        [804]: NOTICE  [sshd] Ban 14.225.17.9
2019-09-02 07:42:41,954 fail2ban.actions        [804]: NOTICE  [sshd] Ban 14.225.17.9
...
2019-10-03 14:44:44
150.242.213.189 attackspambots
2019-10-03T06:16:55.917823shield sshd\[7021\]: Invalid user user1 from 150.242.213.189 port 59772
2019-10-03T06:16:55.922022shield sshd\[7021\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.242.213.189
2019-10-03T06:16:57.841711shield sshd\[7021\]: Failed password for invalid user user1 from 150.242.213.189 port 59772 ssh2
2019-10-03T06:21:03.306973shield sshd\[7655\]: Invalid user jeffrey from 150.242.213.189 port 37466
2019-10-03T06:21:03.311246shield sshd\[7655\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.242.213.189
2019-10-03 15:05:05
14.198.6.164 attackspambots
Oct  3 06:55:05 icinga sshd[26770]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.198.6.164 
Oct  3 06:55:07 icinga sshd[26770]: Failed password for invalid user mediator from 14.198.6.164 port 58510 ssh2
Oct  3 07:04:53 icinga sshd[33115]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.198.6.164 
...
2019-10-03 14:46:04
139.99.201.100 attackbotsspam
Oct  3 07:07:59 fr01 sshd[23523]: Invalid user alar from 139.99.201.100
...
2019-10-03 15:21:05
14.136.118.138 attack
2019-09-17 01:18:01,660 fail2ban.actions        [800]: NOTICE  [sshd] Ban 14.136.118.138
2019-09-17 04:26:27,410 fail2ban.actions        [800]: NOTICE  [sshd] Ban 14.136.118.138
2019-09-17 07:33:16,297 fail2ban.actions        [800]: NOTICE  [sshd] Ban 14.136.118.138
...
2019-10-03 14:53:32
199.195.249.6 attackbotsspam
Oct  3 08:57:54 saschabauer sshd[12431]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=199.195.249.6
Oct  3 08:57:55 saschabauer sshd[12431]: Failed password for invalid user ronda from 199.195.249.6 port 46134 ssh2
2019-10-03 15:04:01
198.200.124.197 attack
Oct  3 09:10:50 MK-Soft-Root1 sshd[9649]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.200.124.197 
Oct  3 09:10:52 MK-Soft-Root1 sshd[9649]: Failed password for invalid user user from 198.200.124.197 port 53264 ssh2
...
2019-10-03 15:22:23
202.28.64.1 attack
2019-09-27 00:25:04,903 fail2ban.actions        [818]: NOTICE  [sshd] Ban 202.28.64.1
2019-09-27 03:33:57,556 fail2ban.actions        [818]: NOTICE  [sshd] Ban 202.28.64.1
2019-09-27 06:43:37,608 fail2ban.actions        [818]: NOTICE  [sshd] Ban 202.28.64.1
...
2019-10-03 14:56:45
221.194.137.28 attackbots
Lines containing failures of 221.194.137.28
Sep 30 20:53:44 shared12 sshd[22647]: Invalid user sysadmin from 221.194.137.28 port 52102
Sep 30 20:53:44 shared12 sshd[22647]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.194.137.28
Sep 30 20:53:46 shared12 sshd[22647]: Failed password for invalid user sysadmin from 221.194.137.28 port 52102 ssh2
Sep 30 20:53:46 shared12 sshd[22647]: Received disconnect from 221.194.137.28 port 52102:11: Bye Bye [preauth]
Sep 30 20:53:46 shared12 sshd[22647]: Disconnected from invalid user sysadmin 221.194.137.28 port 52102 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=221.194.137.28
2019-10-03 14:40:41
195.242.191.64 attackspam
Automatic report - XMLRPC Attack
2019-10-03 14:52:27
139.99.221.61 attackbotsspam
Oct  3 07:50:30 MainVPS sshd[25520]: Invalid user alene from 139.99.221.61 port 57586
Oct  3 07:50:30 MainVPS sshd[25520]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.99.221.61
Oct  3 07:50:30 MainVPS sshd[25520]: Invalid user alene from 139.99.221.61 port 57586
Oct  3 07:50:32 MainVPS sshd[25520]: Failed password for invalid user alene from 139.99.221.61 port 57586 ssh2
Oct  3 07:55:35 MainVPS sshd[25926]: Invalid user 12345 from 139.99.221.61 port 49676
...
2019-10-03 15:19:12
111.231.71.157 attackspam
Oct  3 08:22:12 MK-Soft-VM5 sshd[12295]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.71.157 
Oct  3 08:22:15 MK-Soft-VM5 sshd[12295]: Failed password for invalid user thman from 111.231.71.157 port 58748 ssh2
...
2019-10-03 14:58:49
139.99.78.208 attack
2019-09-19 12:17:18,295 fail2ban.actions        [800]: NOTICE  [sshd] Ban 139.99.78.208
2019-09-19 15:27:10,901 fail2ban.actions        [800]: NOTICE  [sshd] Ban 139.99.78.208
2019-09-19 18:33:09,367 fail2ban.actions        [800]: NOTICE  [sshd] Ban 139.99.78.208
...
2019-10-03 15:00:31
14.141.174.123 attackspam
2019-10-03T06:14:57.245907abusebot-5.cloudsearch.cf sshd\[19620\]: Invalid user recording from 14.141.174.123 port 48889
2019-10-03 14:50:44
173.201.196.10 attackspam
Automatic report - XMLRPC Attack
2019-10-03 15:09:03

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