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 <<>> 104.21.21.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 22483
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.4.			IN	A

;; AUTHORITY SECTION:
.			352	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021801 1800 900 604800 86400

;; Query time: 34 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Feb 19 03:29:23 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 4.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 4.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
104.131.100.24 attack
Aug 16 02:30:59 root sshd[6388]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.100.24  user=root
Aug 16 02:31:01 root sshd[6388]: Failed password for root from 104.131.100.24 port 41508 ssh2
...
2020-08-16 07:42:18
218.92.0.133 attackspambots
Aug 16 01:40:58 vps sshd[196961]: Failed password for root from 218.92.0.133 port 12120 ssh2
Aug 16 01:41:02 vps sshd[196961]: Failed password for root from 218.92.0.133 port 12120 ssh2
Aug 16 01:41:05 vps sshd[196961]: Failed password for root from 218.92.0.133 port 12120 ssh2
Aug 16 01:41:08 vps sshd[196961]: Failed password for root from 218.92.0.133 port 12120 ssh2
Aug 16 01:41:11 vps sshd[196961]: Failed password for root from 218.92.0.133 port 12120 ssh2
...
2020-08-16 07:41:23
223.95.86.157 attackbotsspam
Aug 15 09:22:25 serwer sshd\[1502\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.95.86.157  user=root
Aug 15 09:22:27 serwer sshd\[1502\]: Failed password for root from 223.95.86.157 port 65419 ssh2
Aug 15 09:24:49 serwer sshd\[3074\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.95.86.157  user=root
...
2020-08-16 08:10:59
103.147.10.222 attackbots
103.147.10.222 - - [15/Aug/2020:23:59:27 +0100] "POST /wp-login.php HTTP/1.1" 200 1967 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
103.147.10.222 - - [15/Aug/2020:23:59:31 +0100] "POST /wp-login.php HTTP/1.1" 200 1948 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
103.147.10.222 - - [15/Aug/2020:23:59:33 +0100] "POST /xmlrpc.php HTTP/1.1" 403 219 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-08-16 07:38:56
47.33.8.145 attack
2020-08-15T22:43:46.418008hz01.yumiweb.com sshd\[27839\]: Invalid user admin from 47.33.8.145 port 52696
2020-08-15T22:43:48.309511hz01.yumiweb.com sshd\[27841\]: Invalid user admin from 47.33.8.145 port 52741
2020-08-15T22:43:50.211724hz01.yumiweb.com sshd\[27843\]: Invalid user admin from 47.33.8.145 port 52809
...
2020-08-16 07:43:00
192.241.230.18 attackbotsspam
1597524187 - 08/15/2020 22:43:07 Host: 192.241.230.18/192.241.230.18 Port: 161 UDP Blocked
...
2020-08-16 08:13:24
175.44.42.186 attack
Making suspicious HEAD requests
2020-08-16 07:40:45
13.78.142.201 attack
Port scan: Attack repeated for 24 hours
2020-08-16 08:08:12
50.71.193.195 attackbotsspam
DDoS Attack or Port Scan
2020-08-16 07:40:06
144.22.98.225 attack
Aug 16 02:02:24 ncomp sshd[8853]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.22.98.225  user=root
Aug 16 02:02:26 ncomp sshd[8853]: Failed password for root from 144.22.98.225 port 33599 ssh2
Aug 16 02:09:28 ncomp sshd[8994]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.22.98.225  user=root
Aug 16 02:09:30 ncomp sshd[8994]: Failed password for root from 144.22.98.225 port 50804 ssh2
2020-08-16 08:13:39
45.95.168.223 attackbots
Aug 15 20:42:36 gitlab-ci sshd\[29869\]: Invalid user test from 45.95.168.223Aug 15 20:43:52 gitlab-ci sshd\[29896\]: Invalid user ansible from 45.95.168.223
...
2020-08-16 07:41:08
200.188.157.3 attackbots
leo_www
2020-08-16 07:44:50
61.19.64.9 attackspambots
Icarus honeypot on github
2020-08-16 08:01:22
103.237.56.240 attack
(smtpauth) Failed SMTP AUTH login from 103.237.56.240 (IN/India/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-08-16 01:13:26 plain authenticator failed for ([103.237.56.240]) [103.237.56.240]: 535 Incorrect authentication data (set_id=executive@safanicu.com)
2020-08-16 07:55:58
178.62.104.58 attackbots
Aug 16 01:38:16 haigwepa sshd[26349]: Failed password for root from 178.62.104.58 port 39980 ssh2
...
2020-08-16 08:04:22

Recently Reported IPs

104.21.21.47 104.21.22.241 104.21.22.201 104.21.22.207
104.21.22.21 104.21.22.75 104.21.22.86 104.21.23.234
104.21.23.249 104.21.22.82 104.21.23.169 104.21.233.143
104.21.233.144 104.21.23.70 104.21.234.221 104.21.234.220
104.21.234.90 104.21.234.91 104.21.24.146 104.21.24.102