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: United States

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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.72.123
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50309
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.123.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:50:25 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 123.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 123.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
180.76.168.54 attackbots
Invalid user ogpbot from 180.76.168.54 port 58398
2020-10-04 15:25:40
172.220.92.210 attackbotsspam
Forbidden directory scan :: 2020/10/03 20:39:13 [error] 16144#16144: *15483 access forbidden by rule, client: 172.220.92.210, server: [censored_1], request: "GET /downloads/WebcamViewerV1.0.zip HTTP/2.0", host: "www.[censored_1]", referrer: "https://www.[censored_1]/knowledge-base/windows-8/windows-8-how-to-view-web-camera-without-installing-software/"
2020-10-04 15:45:02
45.148.122.198 attackbotsspam
 TCP (SYN) 45.148.122.198:42905 -> port 22, len 44
2020-10-04 15:39:15
5.188.86.172 attackspam
Cowrie Honeypot: Unauthorised SSH/Telnet login attempt with user "root" at 2020-10-03T21:54:06Z
2020-10-04 15:49:16
18.139.162.95 attackbotsspam
Brute Force
2020-10-04 15:19:19
109.188.72.199 attackbotsspam
23/tcp
[2020-10-03]1pkt
2020-10-04 15:28:57
185.132.53.14 attack
Oct  4 10:17:28 server2 sshd\[32424\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:17:45 server2 sshd\[32427\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:18:01 server2 sshd\[32431\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:18:18 server2 sshd\[32462\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:18:36 server2 sshd\[32464\]: Invalid user telnet from 185.132.53.14
Oct  4 10:18:53 server2 sshd\[32470\]: Invalid user ubnt from 185.132.53.14
2020-10-04 15:37:48
191.234.186.93 attackspambots
Oct  4 09:38:39 haigwepa sshd[16348]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.234.186.93 
Oct  4 09:38:41 haigwepa sshd[16348]: Failed password for invalid user tech from 191.234.186.93 port 43930 ssh2
...
2020-10-04 15:39:41
180.76.135.187 attack
IP 180.76.135.187 attacked honeypot on port: 2376 at 10/3/2020 3:23:35 PM
2020-10-04 15:45:52
43.226.26.186 attackbots
SSH login attempts.
2020-10-04 15:36:37
103.57.220.28 attackspambots
xmlrpc attack
2020-10-04 15:18:14
218.214.92.35 attack
Hits on port : 23
2020-10-04 15:50:35
122.176.94.202 attackbots
445/tcp
[2020-10-03]1pkt
2020-10-04 15:38:37
27.203.159.220 attack
8080/udp
[2020-10-03]1pkt
2020-10-04 15:42:05
141.98.9.162 attack
2020-10-04T09:24:18.605864centos sshd[17298]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.9.162
2020-10-04T09:24:18.600146centos sshd[17298]: Invalid user support from 141.98.9.162 port 42846
2020-10-04T09:24:19.871069centos sshd[17298]: Failed password for invalid user support from 141.98.9.162 port 42846 ssh2
...
2020-10-04 15:38:06

Recently Reported IPs

104.21.72.119 104.21.72.118 104.21.72.12 104.21.72.124
104.21.72.126 104.21.72.127 104.21.72.128 104.21.72.129
104.21.72.13 104.21.72.132 104.21.72.134 104.21.72.136
104.21.72.138 104.21.72.137 104.21.72.135 104.21.72.142
104.21.72.139 104.21.72.14 104.21.72.140 104.21.72.143