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 <<>> 104.21.21.253
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21398
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.253.			IN	A

;; AUTHORITY SECTION:
.			581	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 83 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:30:20 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 253.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 253.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
5.47.126.181 attackbotsspam
Unauthorized connection attempt from IP address 5.47.126.181 on Port 445(SMB)
2019-07-29 08:11:14
88.214.26.171 attack
2019-07-29T04:28:36.700279enmeeting.mahidol.ac.th sshd\[5125\]: Invalid user admin from 88.214.26.171 port 41746
2019-07-29T04:28:36.714668enmeeting.mahidol.ac.th sshd\[5125\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=88.214.26.171
2019-07-29T04:28:38.378979enmeeting.mahidol.ac.th sshd\[5125\]: Failed password for invalid user admin from 88.214.26.171 port 41746 ssh2
...
2019-07-29 08:46:21
83.136.176.90 attackspam
Unauthorized connection attempt from IP address 83.136.176.90 on Port 25(SMTP)
2019-07-29 08:04:18
77.40.103.153 attackspam
2019-07-28T23:20:15.416548mail01 postfix/smtpd[11793]: warning: unknown[77.40.103.153]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-07-28T23:26:54.319257mail01 postfix/smtpd[30705]: warning: unknown[77.40.103.153]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-07-28T23:29:01.175427mail01 postfix/smtpd[21533]: warning: unknown[77.40.103.153]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-07-29 08:41:46
172.254.82.45 attackbots
Telnet brute force
2019-07-29 08:42:28
106.12.142.52 attackbots
Jul 27 03:02:57 pl2server sshd[2129033]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.142.52  user=r.r
Jul 27 03:02:59 pl2server sshd[2129033]: Failed password for r.r from 106.12.142.52 port 35226 ssh2
Jul 27 03:03:00 pl2server sshd[2129033]: Received disconnect from 106.12.142.52: 11: Bye Bye [preauth]
Jul 27 03:21:40 pl2server sshd[2133010]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.142.52  user=r.r
Jul 27 03:21:41 pl2server sshd[2133010]: Failed password for r.r from 106.12.142.52 port 35808 ssh2
Jul 27 03:21:42 pl2server sshd[2133010]: Received disconnect from 106.12.142.52: 11: Bye Bye [preauth]
Jul 27 03:26:21 pl2server sshd[2133959]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.142.52  user=r.r


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=106.12.142.52
2019-07-29 08:51:28
54.175.16.243 attack
SSH bruteforce
2019-07-29 08:47:19
187.51.140.18 attackbots
3389BruteforceStormFW23
2019-07-29 08:37:31
188.166.108.161 attackbots
SSH/22 MH Probe, BF, Hack -
2019-07-29 08:43:00
210.86.134.160 attack
2019-07-28T23:09:05.897089abusebot-7.cloudsearch.cf sshd\[18335\]: Invalid user sadjb from 210.86.134.160 port 46678
2019-07-29 08:40:29
121.134.159.21 attackbots
Jul 28 22:07:39 MK-Soft-VM4 sshd\[18434\]: Invalid user zby1982 from 121.134.159.21 port 46246
Jul 28 22:07:39 MK-Soft-VM4 sshd\[18434\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.134.159.21
Jul 28 22:07:41 MK-Soft-VM4 sshd\[18434\]: Failed password for invalid user zby1982 from 121.134.159.21 port 46246 ssh2
...
2019-07-29 08:05:07
79.178.48.7 attackspambots
Automatic report - Port Scan Attack
2019-07-29 08:27:47
58.64.178.169 attack
Honeypot attack, port: 445, PTR: PTR record not found
2019-07-29 08:09:57
93.81.241.235 attackspam
Unauthorized connection attempt from IP address 93.81.241.235 on Port 445(SMB)
2019-07-29 08:04:42
51.68.225.229 attackspam
2019/07/28 23:29:21 [error] 1240#1240: *1002 FastCGI sent in stderr: "PHP message: [51.68.225.229] user 9had: authentication failure for "https://nihad.dk/wp-admin/": Password Mismatch" while reading response header from upstream, client: 51.68.225.229, server: nihad.dk, request: "POST /wp-login.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm-nihad.dk.sock:", host: "nihad.dk"
2019/07/28 23:29:21 [error] 1240#1240: *1004 FastCGI sent in stderr: "PHP message: [51.68.225.229] user [login]: authentication failure for "https://nihad.dk/wp-admin/": Password Mismatch" while reading response header from upstream, client: 51.68.225.229, server: nihad.dk, request: "POST /xmlrpc.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm-nihad.dk.sock:", host: "nihad.dk"
...
2019-07-29 08:37:04

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