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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.72.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 20318
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.21.			IN	A

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

;; Query time: 90 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:50:57 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
46.101.128.200 attackspambots
Feb 18 18:26:24 ny01 sshd[3286]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.101.128.200
Feb 18 18:26:26 ny01 sshd[3286]: Failed password for invalid user ftpuser from 46.101.128.200 port 41412 ssh2
Feb 18 18:26:54 ny01 sshd[3506]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.101.128.200
2020-02-19 07:47:15
196.25.35.242 attackspambots
Unauthorized connection attempt from IP address 196.25.35.242 on Port 445(SMB)
2020-02-19 07:52:51
84.119.173.125 attackbotsspam
detected by Fail2Ban
2020-02-19 07:52:07
190.0.39.54 attack
Unauthorized connection attempt from IP address 190.0.39.54 on Port 445(SMB)
2020-02-19 07:38:50
180.76.135.15 attack
Feb 18 14:15:22 home sshd[30373]: Invalid user jysun from 180.76.135.15 port 59608
Feb 18 14:15:22 home sshd[30373]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.135.15
Feb 18 14:15:22 home sshd[30373]: Invalid user jysun from 180.76.135.15 port 59608
Feb 18 14:15:23 home sshd[30373]: Failed password for invalid user jysun from 180.76.135.15 port 59608 ssh2
Feb 18 14:50:29 home sshd[30527]: Invalid user user10 from 180.76.135.15 port 43376
Feb 18 14:50:29 home sshd[30527]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.135.15
Feb 18 14:50:29 home sshd[30527]: Invalid user user10 from 180.76.135.15 port 43376
Feb 18 14:50:32 home sshd[30527]: Failed password for invalid user user10 from 180.76.135.15 port 43376 ssh2
Feb 18 14:53:55 home sshd[30539]: Invalid user cpanelrrdtool from 180.76.135.15 port 40394
Feb 18 14:53:55 home sshd[30539]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh r
2020-02-19 08:06:16
110.164.215.153 attackspam
Unauthorized connection attempt from IP address 110.164.215.153 on Port 445(SMB)
2020-02-19 07:57:50
36.37.94.197 attack
Unauthorized connection attempt from IP address 36.37.94.197 on Port 445(SMB)
2020-02-19 07:37:16
188.166.234.227 attackspam
Feb 18 13:24:10 sachi sshd\[2594\]: Invalid user sinusbot from 188.166.234.227
Feb 18 13:24:10 sachi sshd\[2594\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.234.227
Feb 18 13:24:12 sachi sshd\[2594\]: Failed password for invalid user sinusbot from 188.166.234.227 port 51304 ssh2
Feb 18 13:27:09 sachi sshd\[2835\]: Invalid user nx from 188.166.234.227
Feb 18 13:27:09 sachi sshd\[2835\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.234.227
2020-02-19 07:49:06
223.71.139.99 attack
Invalid user ling
2020-02-19 07:38:22
94.219.74.136 attackspambots
DATE:2020-02-18 23:00:49, IP:94.219.74.136, PORT:telnet - Telnet brute force auth on a honeypot server (epe-dc)
2020-02-19 07:56:41
49.88.112.112 attackspam
Failed password for root from 49.88.112.112 port 52591 ssh2
Failed password for root from 49.88.112.112 port 52591 ssh2
Failed password for root from 49.88.112.112 port 52591 ssh2
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.112  user=root
Failed password for root from 49.88.112.112 port 42669 ssh2
2020-02-19 07:55:17
190.217.201.113 attackspam
Unauthorized connection attempt from IP address 190.217.201.113 on Port 445(SMB)
2020-02-19 08:15:20
61.182.230.41 attack
Feb 19 00:11:08 MK-Soft-VM3 sshd[14658]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.182.230.41 
Feb 19 00:11:11 MK-Soft-VM3 sshd[14658]: Failed password for invalid user cpanelphppgadmin from 61.182.230.41 port 33279 ssh2
...
2020-02-19 07:50:46
37.59.232.6 attackbots
Invalid user trent from 37.59.232.6 port 41184
2020-02-19 07:42:19
170.82.109.65 attackspam
trying to access non-authorized port
2020-02-19 08:11:51

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