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:
IP Type Details Datetime
104.21.75.2 spam
Spammer blacklist in https://www.projecthoneypot.org/ip_104.21.75.2 https://multirbl.valli.org/lookup/104.21.75.2.html
2022-12-29 00:00:44
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.7.51
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 43244
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.7.51.			IN	A

;; AUTHORITY SECTION:
.			257	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 54 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:17:49 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 51.7.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 51.7.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
106.12.100.73 attackspam
(sshd) Failed SSH login from 106.12.100.73 (CN/China/-): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Feb  6 05:55:37 ubnt-55d23 sshd[30211]: Invalid user omk from 106.12.100.73 port 53882
Feb  6 05:55:40 ubnt-55d23 sshd[30211]: Failed password for invalid user omk from 106.12.100.73 port 53882 ssh2
2020-02-06 15:07:49
46.245.38.2 attackbots
web Attack on Website at 2020-02-05.
2020-02-06 14:54:16
54.39.16.2 attackspambots
SSH login attempts with user root at 2020-02-05.
2020-02-06 14:41:45
108.41.185.191 attack
Fail2Ban Ban Triggered
2020-02-06 15:13:13
208.100.26.229 attack
Unauthorized connection attempt detected from IP address 208.100.26.229 to port 25 [J]
2020-02-06 14:33:06
49.88.112.1 attackspam
SSH login attempts with user root at 2020-02-05.
2020-02-06 14:49:29
80.82.77.139 attackbots
02/05/2020-23:55:33.203983 80.82.77.139 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2020-02-06 14:59:56
60.48.194.1 attack
web Attack on Website at 2020-02-05.
2020-02-06 14:39:13
46.166.187.1 attack
web Attack on Website at 2020-02-05.
2020-02-06 14:56:02
175.101.60.20 attackbots
Feb  6 05:55:54 web2 sshd[19297]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.101.60.20
Feb  6 05:55:56 web2 sshd[19297]: Failed password for invalid user tit0nich from 175.101.60.20 port 60908 ssh2
2020-02-06 14:40:24
49.88.112.6 attack
SSH login attempts with user root at 2020-02-05.
2020-02-06 14:48:59
112.85.42.173 attackspam
2020-2-6 7:19:44 AM: failed ssh attempt
2020-02-06 15:07:22
50.115.168.7 attack
web Attack on Website at 2020-02-05.
2020-02-06 14:46:39
23.240.188.5 attackspambots
web Attack on Website at 2020-02-05.
2020-02-06 15:09:52
37.21.208.2 attack
web Attack on Website at 2020-02-05.
2020-02-06 15:01:32

Recently Reported IPs

104.21.7.49 104.21.7.59 104.21.7.70 104.21.7.66
104.21.70.107 104.21.70.106 104.21.7.99 104.21.70.101
104.21.70.108 104.21.70.100 104.21.70.113 13.225.71.69
104.21.7.96 104.21.70.119 104.21.7.69 104.21.70.14
104.21.70.140 104.21.70.162 104.21.70.164 104.21.70.165