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: None

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 <<>> 104.21.21.231
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4670
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.231.			IN	A

;; AUTHORITY SECTION:
.			306	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022001 1800 900 604800 86400

;; Query time: 63 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 21 11:40:00 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 231.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 231.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
27.254.136.29 attack
Jul 18 13:04:30 nextcloud sshd\[5903\]: Invalid user ssh-user from 27.254.136.29
Jul 18 13:04:30 nextcloud sshd\[5903\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.254.136.29
Jul 18 13:04:32 nextcloud sshd\[5903\]: Failed password for invalid user ssh-user from 27.254.136.29 port 42250 ssh2
...
2019-07-19 03:07:02
35.240.55.191 attackbotsspam
vps1:sshd-InvalidUser
2019-07-19 02:36:17
121.129.164.66 attackbotsspam
FTP brute-force attack
2019-07-19 02:58:47
211.21.93.238 attackspam
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-18 08:57:49,341 INFO [amun_request_handler] PortScan Detected on Port: 445 (211.21.93.238)
2019-07-19 02:50:15
45.55.47.149 attackspam
Jul 18 19:18:56 bouncer sshd\[28744\]: Invalid user server from 45.55.47.149 port 57128
Jul 18 19:18:56 bouncer sshd\[28744\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.55.47.149 
Jul 18 19:18:58 bouncer sshd\[28744\]: Failed password for invalid user server from 45.55.47.149 port 57128 ssh2
...
2019-07-19 02:23:03
62.234.153.140 attackspambots
10 attempts against mh-pma-try-ban on pole.magehost.pro
2019-07-19 03:08:32
112.211.248.195 attackspam
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-18 08:58:47,799 INFO [amun_request_handler] PortScan Detected on Port: 445 (112.211.248.195)
2019-07-19 02:32:10
91.121.211.34 attackbots
Automatic report - Banned IP Access
2019-07-19 03:13:17
121.122.103.14 attackspam
Jul 17 11:31:16 vpxxxxxxx22308 sshd[2337]: Invalid user cj from 121.122.103.14
Jul 17 11:31:16 vpxxxxxxx22308 sshd[2337]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.122.103.14
Jul 17 11:31:18 vpxxxxxxx22308 sshd[2337]: Failed password for invalid user cj from 121.122.103.14 port 52846 ssh2
Jul 17 11:37:09 vpxxxxxxx22308 sshd[3331]: Invalid user koko from 121.122.103.14
Jul 17 11:37:09 vpxxxxxxx22308 sshd[3331]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.122.103.14

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=121.122.103.14
2019-07-19 02:25:22
193.169.252.212 attackspam
Jul 18 18:36:25 herz-der-gamer postfix/smtpd[1103]: warning: unknown[193.169.252.212]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 18 19:01:47 herz-der-gamer postfix/smtpd[3144]: warning: unknown[193.169.252.212]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2019-07-19 03:04:07
151.84.222.52 attackbots
Jul 18 12:51:10 [munged] sshd[32250]: Invalid user theresa from 151.84.222.52 port 41977
Jul 18 12:51:10 [munged] sshd[32250]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.84.222.52
2019-07-19 02:52:10
113.190.240.228 attackbotsspam
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-18 08:59:36,511 INFO [amun_request_handler] PortScan Detected on Port: 445 (113.190.240.228)
2019-07-19 02:27:14
128.199.197.53 attackspam
Jul 18 19:41:29 mail sshd\[2329\]: Invalid user mika from 128.199.197.53 port 40967
Jul 18 19:41:29 mail sshd\[2329\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.197.53
...
2019-07-19 02:46:23
58.187.29.164 attack
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-18 08:56:44,353 INFO [amun_request_handler] PortScan Detected on Port: 445 (58.187.29.164)
2019-07-19 03:03:18
91.23.33.246 attack
(sshd) Failed SSH login from 91.23.33.246 (p5B1721F6.dip0.t-ipconnect.de): 5 in the last 3600 secs
2019-07-19 03:07:35

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