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 <<>> 104.21.21.71
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21086
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.71.			IN	A

;; AUTHORITY SECTION:
.			102	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 18 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:16:08 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 71.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 71.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
45.148.10.16 attackbotsspam
Unauthorized connection attempt detected from IP address 45.148.10.16 to port 8984
2019-12-25 07:41:11
120.89.64.8 attackspam
Repeated failed SSH attempt
2019-12-25 08:01:04
68.183.86.92 attackbots
3389BruteforceFW22
2019-12-25 08:09:29
213.82.114.206 attackspam
Dec 25 00:13:38 herz-der-gamer sshd[2099]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.82.114.206  user=root
Dec 25 00:13:40 herz-der-gamer sshd[2099]: Failed password for root from 213.82.114.206 port 48186 ssh2
Dec 25 00:27:31 herz-der-gamer sshd[2254]: Invalid user logcheck from 213.82.114.206 port 43362
...
2019-12-25 08:10:25
73.198.99.245 attack
Dec 25 00:18:28 MK-Soft-Root1 sshd[18523]: Failed password for root from 73.198.99.245 port 38686 ssh2
...
2019-12-25 08:04:32
123.16.62.200 attack
Automatic report - SSH Brute-Force Attack
2019-12-25 07:55:25
222.186.175.161 attack
Dec 25 00:58:09 ns381471 sshd[11630]: Failed password for root from 222.186.175.161 port 36524 ssh2
Dec 25 00:58:24 ns381471 sshd[11630]: error: maximum authentication attempts exceeded for root from 222.186.175.161 port 36524 ssh2 [preauth]
2019-12-25 08:02:27
222.186.175.212 attackbotsspam
" "
2019-12-25 08:08:53
201.38.172.76 attackspam
Invalid user gdm from 201.38.172.76 port 56822
2019-12-25 08:16:00
157.230.209.220 attackbots
Dec 25 00:57:51 [host] sshd[19352]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.209.220  user=root
Dec 25 00:57:52 [host] sshd[19352]: Failed password for root from 157.230.209.220 port 53858 ssh2
Dec 25 00:58:39 [host] sshd[19364]: Invalid user keyonamei from 157.230.209.220
2019-12-25 08:01:36
222.186.180.8 attackspambots
SSH-BruteForce
2019-12-25 08:12:08
51.91.110.249 attack
Dec 24 23:52:29 game-panel sshd[10669]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.110.249
Dec 24 23:52:31 game-panel sshd[10669]: Failed password for invalid user server from 51.91.110.249 port 60042 ssh2
Dec 24 23:54:09 game-panel sshd[10729]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.110.249
2019-12-25 07:54:49
218.92.0.170 attackspambots
SSH bruteforce
2019-12-25 07:46:13
167.99.52.254 attackspam
12/25/2019-00:27:46.149715 167.99.52.254 Protocol: 6 ET POLICY Cleartext WordPress Login
2019-12-25 07:58:58
189.203.240.2 attackbots
1577230043 - 12/25/2019 00:27:23 Host: 189.203.240.2/189.203.240.2 Port: 445 TCP Blocked
2019-12-25 08:13:02

Recently Reported IPs

104.21.21.74 104.21.21.7 104.21.21.79 104.21.21.68
104.21.21.8 104.21.21.88 104.21.68.175 104.21.21.94
104.21.21.82 104.21.22.102 104.21.21.87 104.21.21.97
104.21.217.10 104.21.21.99 104.21.68.178 104.21.21.86
104.21.22.124 104.21.22.108 104.21.22.13 104.21.22.131