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 <<>> 104.21.43.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41015
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.43.21.			IN	A

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

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 20:31:48 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.43.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.43.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
103.126.6.40 attackbotsspam
SSH Brute-Force Attack
2020-06-24 19:58:31
119.253.84.106 attack
SCAN: Host Sweep CloudCIX Reconnaissance Scan Detected, PTR: PTR record not found
2020-06-24 19:49:24
47.104.248.159 attackbotsspam
47.104.248.159 - - [24/Jun/2020:09:32:41 +0200] "POST /xmlrpc.php HTTP/1.1" 403 21861 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
47.104.248.159 - - [24/Jun/2020:09:33:43 +0200] "POST /xmlrpc.php HTTP/1.1" 403 21861 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-06-24 19:59:21
139.186.84.46 attackbots
Jun 24 04:50:25 ws24vmsma01 sshd[55688]: Failed password for root from 139.186.84.46 port 50350 ssh2
...
2020-06-24 19:30:48
192.99.36.177 attackspam
192.99.36.177 - - [24/Jun/2020:12:37:40 +0100] "POST /wp-login.php HTTP/1.1" 200 5595 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
192.99.36.177 - - [24/Jun/2020:12:40:09 +0100] "POST /wp-login.php HTTP/1.1" 200 5595 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
192.99.36.177 - - [24/Jun/2020:12:42:44 +0100] "POST /wp-login.php HTTP/1.1" 200 5595 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
...
2020-06-24 19:52:22
128.65.179.50 attack
06/23/2020-23:48:51.900962 128.65.179.50 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433
2020-06-24 19:51:40
218.92.0.223 attackbots
Jun 24 13:52:08 vm1 sshd[32125]: Failed password for root from 218.92.0.223 port 17644 ssh2
Jun 24 13:52:21 vm1 sshd[32125]: error: maximum authentication attempts exceeded for root from 218.92.0.223 port 17644 ssh2 [preauth]
...
2020-06-24 20:02:53
182.71.221.78 attackbotsspam
...
2020-06-24 19:53:52
154.205.252.55 attackbotsspam
 TCP (SYN) 154.205.252.55:43250 -> port 1698, len 44
2020-06-24 19:38:56
51.68.11.231 attack
cache/simple.php5
2020-06-24 19:56:02
51.77.245.214 attackspambots
Jun 24 05:46:12 s1 sshd\[8454\]: Invalid user nagios from 51.77.245.214 port 52906
Jun 24 05:46:12 s1 sshd\[8454\]: Failed password for invalid user nagios from 51.77.245.214 port 52906 ssh2
Jun 24 05:47:36 s1 sshd\[8485\]: Invalid user nagios from 51.77.245.214 port 40588
Jun 24 05:47:36 s1 sshd\[8485\]: Failed password for invalid user nagios from 51.77.245.214 port 40588 ssh2
Jun 24 05:49:02 s1 sshd\[8522\]: Invalid user user from 51.77.245.214 port 56510
Jun 24 05:49:02 s1 sshd\[8522\]: Failed password for invalid user user from 51.77.245.214 port 56510 ssh2
...
2020-06-24 19:41:23
140.246.229.200 attack
Jun 24 07:50:39 rotator sshd\[2851\]: Failed password for root from 140.246.229.200 port 50034 ssh2Jun 24 07:52:25 rotator sshd\[2874\]: Failed password for root from 140.246.229.200 port 38748 ssh2Jun 24 07:54:10 rotator sshd\[2888\]: Invalid user sftp from 140.246.229.200Jun 24 07:54:12 rotator sshd\[2888\]: Failed password for invalid user sftp from 140.246.229.200 port 55694 ssh2Jun 24 07:56:05 rotator sshd\[3673\]: Invalid user kim from 140.246.229.200Jun 24 07:56:06 rotator sshd\[3673\]: Failed password for invalid user kim from 140.246.229.200 port 44420 ssh2
...
2020-06-24 19:42:12
111.229.208.44 attackbots
Unauthorized connection attempt detected from IP address 111.229.208.44 to port 6575
2020-06-24 20:09:11
106.243.2.244 attackbots
sshd: Failed password for invalid user .... from 106.243.2.244 port 41204 ssh2 (6 attempts)
2020-06-24 19:52:55
91.92.109.77 attackbotsspam
Jun 24 04:50:06 ip-172-31-62-245 sshd\[19717\]: Invalid user 123456 from 91.92.109.77\
Jun 24 04:50:08 ip-172-31-62-245 sshd\[19717\]: Failed password for invalid user 123456 from 91.92.109.77 port 49450 ssh2\
Jun 24 04:56:27 ip-172-31-62-245 sshd\[19754\]: Invalid user ebs from 91.92.109.77\
Jun 24 04:56:29 ip-172-31-62-245 sshd\[19754\]: Failed password for invalid user ebs from 91.92.109.77 port 47508 ssh2\
Jun 24 04:59:32 ip-172-31-62-245 sshd\[19768\]: Invalid user Password2020 from 91.92.109.77\
2020-06-24 19:29:12

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