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 <<>> 104.21.77.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 42176
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.77.21.			IN	A

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

;; Query time: 26 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:19:42 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.77.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.77.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
222.186.175.217 attack
Apr 16 15:05:28 vps sshd[681611]: Failed password for root from 222.186.175.217 port 13010 ssh2
Apr 16 15:05:31 vps sshd[681611]: Failed password for root from 222.186.175.217 port 13010 ssh2
Apr 16 15:05:34 vps sshd[681611]: Failed password for root from 222.186.175.217 port 13010 ssh2
Apr 16 15:05:37 vps sshd[681611]: Failed password for root from 222.186.175.217 port 13010 ssh2
Apr 16 15:05:41 vps sshd[681611]: Failed password for root from 222.186.175.217 port 13010 ssh2
...
2020-04-16 21:17:28
222.186.175.148 attackspambots
Apr 16 13:59:55 combo sshd[3558]: Failed password for root from 222.186.175.148 port 7438 ssh2
Apr 16 13:59:58 combo sshd[3558]: Failed password for root from 222.186.175.148 port 7438 ssh2
Apr 16 14:00:02 combo sshd[3558]: Failed password for root from 222.186.175.148 port 7438 ssh2
...
2020-04-16 21:01:18
82.138.61.157 attackbotsspam
Unauthorized connection attempt from IP address 82.138.61.157 on Port 445(SMB)
2020-04-16 21:08:35
171.247.155.198 attack
1587039315 - 04/16/2020 14:15:15 Host: 171.247.155.198/171.247.155.198 Port: 445 TCP Blocked
2020-04-16 21:11:43
36.71.238.203 attack
Unauthorized connection attempt from IP address 36.71.238.203 on Port 445(SMB)
2020-04-16 21:05:21
165.22.72.143 attackspambots
Apr 16 14:06:45 ourumov-web sshd\[4414\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.72.143  user=root
Apr 16 14:06:47 ourumov-web sshd\[4414\]: Failed password for root from 165.22.72.143 port 40480 ssh2
Apr 16 14:15:36 ourumov-web sshd\[16573\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.72.143  user=root
...
2020-04-16 20:40:20
206.201.3.13 attackbotsspam
Unauthorized connection attempt from IP address 206.201.3.13 on Port 3389(RDP)
2020-04-16 20:37:20
45.55.184.78 attackbots
$f2bV_matches
2020-04-16 20:59:48
182.72.221.46 attackbotsspam
Unauthorized connection attempt from IP address 182.72.221.46 on Port 445(SMB)
2020-04-16 20:47:04
118.24.28.106 attack
Apr 16 14:06:50 mail1 sshd\[12675\]: Invalid user test from 118.24.28.106 port 47679
Apr 16 14:06:50 mail1 sshd\[12675\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.28.106
Apr 16 14:06:52 mail1 sshd\[12675\]: Failed password for invalid user test from 118.24.28.106 port 47679 ssh2
Apr 16 14:15:30 mail1 sshd\[16475\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.28.106  user=root
Apr 16 14:15:32 mail1 sshd\[16475\]: Failed password for root from 118.24.28.106 port 58500 ssh2
...
2020-04-16 20:48:50
62.210.205.155 attackspambots
Apr 16 17:38:50 gw1 sshd[31306]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.210.205.155
Apr 16 17:38:53 gw1 sshd[31306]: Failed password for invalid user root1 from 62.210.205.155 port 35369 ssh2
...
2020-04-16 20:50:24
114.242.206.230 attackbotsspam
(ftpd) Failed FTP login from 114.242.206.230 (CN/China/-): 10 in the last 3600 secs
2020-04-16 21:12:07
194.61.27.241 attackbotsspam
Unauthorized connection attempt from IP address 194.61.27.241 on Port 3389(RDP)
2020-04-16 21:08:51
49.233.163.185 attack
k+ssh-bruteforce
2020-04-16 20:41:40
14.166.228.36 attack
Unauthorized access or intrusion attempt detected from Thor banned IP
2020-04-16 21:13:17

Recently Reported IPs

104.21.77.148 104.21.77.184 104.21.77.226 104.21.77.211
104.21.77.228 104.21.77.233 104.21.77.28 104.21.77.165
104.21.77.243 104.21.77.31 104.21.77.38 104.21.77.32
104.21.77.29 104.21.77.58 104.21.77.39 104.21.77.4
104.21.77.42 104.21.77.63 104.21.77.6 104.21.77.75