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 of America (the)

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 <<>> 21.72.66.75
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32171
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.72.66.75.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025012800 1800 900 604800 86400

;; Query time: 35 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Jan 28 22:30:42 CST 2025
;; MSG SIZE  rcvd: 104
Host info
Host 75.66.72.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 75.66.72.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
116.199.9.238 attack
Sep 10 03:17:52 [munged] sshd[23422]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.199.9.238
2019-09-10 15:07:04
69.94.131.77 attack
Sent Mail to address hacked/leaked/bought from crystalproductions.cz between 2011 and 2018
2019-09-10 14:44:13
112.85.42.186 attackbotsspam
Sep 10 11:07:29 areeb-Workstation sshd[12607]: Failed password for root from 112.85.42.186 port 11580 ssh2
...
2019-09-10 15:10:30
192.144.187.10 attackspambots
Sep 10 08:02:04 mout sshd[10939]: Invalid user upload from 192.144.187.10 port 50054
2019-09-10 14:51:18
117.50.46.229 attack
Sep 10 03:24:40 ip-172-31-1-72 sshd\[8065\]: Invalid user demo from 117.50.46.229
Sep 10 03:24:40 ip-172-31-1-72 sshd\[8065\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.50.46.229
Sep 10 03:24:42 ip-172-31-1-72 sshd\[8065\]: Failed password for invalid user demo from 117.50.46.229 port 50590 ssh2
Sep 10 03:27:39 ip-172-31-1-72 sshd\[8154\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.50.46.229  user=dev
Sep 10 03:27:40 ip-172-31-1-72 sshd\[8154\]: Failed password for dev from 117.50.46.229 port 48320 ssh2
2019-09-10 14:37:04
185.159.32.15 attack
2019-09-09 20:23:02,516 fail2ban.actions        [814]: NOTICE  [sshd] Ban 185.159.32.15
2019-09-09 23:34:39,480 fail2ban.actions        [814]: NOTICE  [sshd] Ban 185.159.32.15
2019-09-10 02:46:02,644 fail2ban.actions        [814]: NOTICE  [sshd] Ban 185.159.32.15
...
2019-09-10 14:49:40
81.30.212.14 attackbotsspam
Sep  9 20:43:00 php2 sshd\[6874\]: Invalid user guest from 81.30.212.14
Sep  9 20:43:00 php2 sshd\[6874\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.30.212.14.static.ufanet.ru
Sep  9 20:43:02 php2 sshd\[6874\]: Failed password for invalid user guest from 81.30.212.14 port 42626 ssh2
Sep  9 20:48:39 php2 sshd\[7343\]: Invalid user www-upload from 81.30.212.14
Sep  9 20:48:39 php2 sshd\[7343\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.30.212.14.static.ufanet.ru
2019-09-10 14:59:27
104.168.145.196 spambots
spam
2019-09-10 14:37:51
187.188.169.123 attackbots
2019-09-10T04:52:51.315335abusebot-4.cloudsearch.cf sshd\[9032\]: Invalid user 123456 from 187.188.169.123 port 58060
2019-09-10 14:35:48
195.29.233.0 attackbots
Mail sent to address obtained from MySpace hack
2019-09-10 14:42:08
119.29.234.236 attackspambots
Sep 10 02:30:19 plusreed sshd[7258]: Invalid user sinusbot1 from 119.29.234.236
...
2019-09-10 14:39:33
177.238.248.101 attackbots
Sep 10 03:18:35 smtp postfix/smtpd[66611]: NOQUEUE: reject: RCPT from unknown[177.238.248.101]: 554 5.7.1 Service unavailable; Client host [177.238.248.101] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?177.238.248.101; from= to= proto=ESMTP helo=
...
2019-09-10 14:24:47
218.76.87.67 attack
F2B jail: sshd. Time: 2019-09-10 04:38:56, Reported by: VKReport
2019-09-10 14:50:13
36.156.24.43 attack
10.09.2019 06:07:49 SSH access blocked by firewall
2019-09-10 14:33:35
157.230.174.111 attack
Sep 10 08:43:00 legacy sshd[15244]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.174.111
Sep 10 08:43:02 legacy sshd[15244]: Failed password for invalid user 123123 from 157.230.174.111 port 51458 ssh2
Sep 10 08:49:16 legacy sshd[15538]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.174.111
...
2019-09-10 14:50:47

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