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 <<>> 104.21.51.116
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36179
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.51.116.			IN	A

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

;; Query time: 26 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:35:03 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 116.51.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 116.51.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
64.227.107.24 attack
Invalid user admin from 64.227.107.24 port 57164
2020-05-26 20:45:23
104.152.222.44 attackspambots
illigal actions on webapp
2020-05-26 20:47:31
122.51.60.39 attack
Invalid user lorianne from 122.51.60.39 port 32864
2020-05-26 21:02:28
103.238.111.207 attackbotsspam
Unauthorised access (May 26) SRC=103.238.111.207 LEN=48 TOS=0x10 PREC=0x40 TTL=111 ID=14350 DF TCP DPT=445 WINDOW=8192 SYN
2020-05-26 20:53:35
77.37.162.17 attack
fail2ban/May 26 09:26:23 h1962932 sshd[11845]: Invalid user nagios from 77.37.162.17 port 55326
May 26 09:26:23 h1962932 sshd[11845]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=broadband-77-37-162-17.ip.moscow.rt.ru
May 26 09:26:23 h1962932 sshd[11845]: Invalid user nagios from 77.37.162.17 port 55326
May 26 09:26:25 h1962932 sshd[11845]: Failed password for invalid user nagios from 77.37.162.17 port 55326 ssh2
May 26 09:29:55 h1962932 sshd[11925]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=broadband-77-37-162-17.ip.moscow.rt.ru  user=root
May 26 09:29:58 h1962932 sshd[11925]: Failed password for root from 77.37.162.17 port 59320 ssh2
2020-05-26 20:49:56
138.197.179.111 attackbotsspam
Invalid user fahmed from 138.197.179.111 port 33484
2020-05-26 21:20:47
125.231.16.131 attack
Telnet/23 MH Probe, Scan, BF, Hack -
2020-05-26 20:56:57
222.186.30.167 attackbots
May 26 13:14:59 ip-172-31-61-156 sshd[26456]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.167  user=root
May 26 13:15:01 ip-172-31-61-156 sshd[26456]: Failed password for root from 222.186.30.167 port 47741 ssh2
...
2020-05-26 21:16:30
220.127.148.8 attack
May 26 12:25:35 ns382633 sshd\[12419\]: Invalid user admin from 220.127.148.8 port 45874
May 26 12:25:35 ns382633 sshd\[12419\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.127.148.8
May 26 12:25:37 ns382633 sshd\[12419\]: Failed password for invalid user admin from 220.127.148.8 port 45874 ssh2
May 26 12:39:41 ns382633 sshd\[14735\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=220.127.148.8  user=root
May 26 12:39:43 ns382633 sshd\[14735\]: Failed password for root from 220.127.148.8 port 45762 ssh2
2020-05-26 20:52:17
42.113.0.43 attack
SMB Server BruteForce Attack
2020-05-26 20:51:57
186.29.70.85 attackspambots
$f2bV_matches
2020-05-26 21:09:27
59.98.230.215 attackbots
1590478176 - 05/26/2020 09:29:36 Host: 59.98.230.215/59.98.230.215 Port: 445 TCP Blocked
2020-05-26 21:11:37
155.94.154.49 attackbotsspam
firewall-block, port(s): 123/udp
2020-05-26 20:51:37
178.91.77.90 attack
Telnet/23 MH Probe, Scan, BF, Hack -
2020-05-26 20:59:10
1.54.16.111 attack
SMB Server BruteForce Attack
2020-05-26 20:57:19

Recently Reported IPs

104.21.51.10 104.21.51.12 104.21.51.115 104.21.51.122
104.21.7.212 104.21.51.124 104.21.51.125 104.21.51.11
104.21.51.123 104.21.51.13 104.21.51.126 104.21.51.129
104.21.51.137 104.21.51.135 104.21.51.14 104.21.51.143
104.21.51.144 104.21.51.148 104.21.51.149 104.21.51.16