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:
IP Type Details Datetime
104.21.75.2 spam
Spammer blacklist in https://www.projecthoneypot.org/ip_104.21.75.2 https://multirbl.valli.org/lookup/104.21.75.2.html
2022-12-29 00:00:44
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.75.238
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15153
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.75.238.			IN	A

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

;; Query time: 20 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:54:28 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 238.75.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 238.75.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
118.32.194.132 attackbots
$f2bV_matches
2019-12-19 23:21:52
41.230.101.16 attackspam
Dec 19 15:39:04 grey postfix/smtpd\[15111\]: NOQUEUE: reject: RCPT from unknown\[41.230.101.16\]: 554 5.7.1 Service unavailable\; Client host \[41.230.101.16\] blocked using cbl.abuseat.org\; Blocked - see http://www.abuseat.org/lookup.cgi\?ip=41.230.101.16\; from=\ to=\ proto=ESMTP helo=\<\[41.230.101.16\]\>
...
2019-12-19 23:17:08
95.155.58.52 attackspam
Dec 19 15:39:20 grey postfix/smtpd\[12011\]: NOQUEUE: reject: RCPT from unknown\[95.155.58.52\]: 554 5.7.1 Service unavailable\; Client host \[95.155.58.52\] blocked using bl.spamcop.net\; Blocked - see https://www.spamcop.net/bl.shtml\?95.155.58.52\; from=\ to=\ proto=ESMTP helo=\
...
2019-12-19 23:05:25
133.11.136.33 attack
$f2bV_matches
2019-12-19 23:13:55
211.157.159.29 attackbotsspam
12/19/2019-09:38:52.714710 211.157.159.29 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433
2019-12-19 23:26:15
195.218.174.50 attackbots
Registration form abuse
2019-12-19 23:17:32
189.176.99.140 attack
Dec 19 15:52:26 vmd17057 sshd\[22363\]: Invalid user admin from 189.176.99.140 port 38378
Dec 19 15:52:26 vmd17057 sshd\[22363\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.176.99.140
Dec 19 15:52:28 vmd17057 sshd\[22363\]: Failed password for invalid user admin from 189.176.99.140 port 38378 ssh2
...
2019-12-19 23:24:03
36.112.137.21 attackbotsspam
Lines containing failures of 36.112.137.21
Dec 18 14:11:08 shared06 sshd[17189]: Invalid user josh from 36.112.137.21 port 22458
Dec 18 14:11:08 shared06 sshd[17189]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.112.137.21
Dec 18 14:11:10 shared06 sshd[17189]: Failed password for invalid user josh from 36.112.137.21 port 22458 ssh2
Dec 18 14:11:10 shared06 sshd[17189]: Received disconnect from 36.112.137.21 port 22458:11: Bye Bye [preauth]
Dec 18 14:11:10 shared06 sshd[17189]: Disconnected from invalid user josh 36.112.137.21 port 22458 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=36.112.137.21
2019-12-19 22:50:01
104.131.97.47 attack
Dec 19 04:53:48 kapalua sshd\[10987\]: Invalid user walters from 104.131.97.47
Dec 19 04:53:48 kapalua sshd\[10987\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.97.47
Dec 19 04:53:50 kapalua sshd\[10987\]: Failed password for invalid user walters from 104.131.97.47 port 45888 ssh2
Dec 19 05:01:14 kapalua sshd\[11668\]: Invalid user kelley from 104.131.97.47
Dec 19 05:01:14 kapalua sshd\[11668\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.131.97.47
2019-12-19 23:11:31
115.78.121.251 attackbotsspam
Dec 19 15:39:34 grey postfix/smtpd\[15111\]: NOQUEUE: reject: RCPT from unknown\[115.78.121.251\]: 554 5.7.1 Service unavailable\; Client host \[115.78.121.251\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[115.78.121.251\]\; from=\ to=\ proto=ESMTP helo=\<\[115.78.121.251\]\>
...
2019-12-19 22:54:51
175.198.81.71 attackbots
Dec 19 15:59:34 [host] sshd[24506]: Invalid user baittinger from 175.198.81.71
Dec 19 15:59:34 [host] sshd[24506]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.198.81.71
Dec 19 15:59:36 [host] sshd[24506]: Failed password for invalid user baittinger from 175.198.81.71 port 53346 ssh2
2019-12-19 23:10:07
175.182.227.144 attackspam
Unauthorized connection attempt detected from IP address 175.182.227.144 to port 22
2019-12-19 23:10:30
218.92.0.179 attackspambots
Dec 19 15:39:39 dcd-gentoo sshd[25142]: User root from 218.92.0.179 not allowed because none of user's groups are listed in AllowGroups
Dec 19 15:39:41 dcd-gentoo sshd[25142]: error: PAM: Authentication failure for illegal user root from 218.92.0.179
Dec 19 15:39:39 dcd-gentoo sshd[25142]: User root from 218.92.0.179 not allowed because none of user's groups are listed in AllowGroups
Dec 19 15:39:41 dcd-gentoo sshd[25142]: error: PAM: Authentication failure for illegal user root from 218.92.0.179
Dec 19 15:39:39 dcd-gentoo sshd[25142]: User root from 218.92.0.179 not allowed because none of user's groups are listed in AllowGroups
Dec 19 15:39:41 dcd-gentoo sshd[25142]: error: PAM: Authentication failure for illegal user root from 218.92.0.179
Dec 19 15:39:41 dcd-gentoo sshd[25142]: Failed keyboard-interactive/pam for invalid user root from 218.92.0.179 port 39364 ssh2
...
2019-12-19 22:46:13
177.69.118.197 attack
"Fail2Ban detected SSH brute force attempt"
2019-12-19 22:44:36
138.68.27.177 attackspam
Dec 19 15:50:25 legacy sshd[15144]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.27.177
Dec 19 15:50:26 legacy sshd[15144]: Failed password for invalid user kathe from 138.68.27.177 port 42640 ssh2
Dec 19 15:56:08 legacy sshd[15380]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.27.177
...
2019-12-19 23:20:17

Recently Reported IPs

104.21.75.232 104.21.75.236 104.21.75.239 104.21.75.24
104.21.75.240 104.21.75.231 104.21.75.242 104.21.75.241
104.21.75.244 104.21.75.243 104.21.75.246 104.21.75.249
104.21.75.251 104.21.75.253 104.21.75.254 104.21.75.26
104.21.75.29 104.21.75.25 104.21.75.28 104.21.75.3