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 <<>> 104.21.54.51
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29544
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.54.51.			IN	A

;; AUTHORITY SECTION:
.			527	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:13:14 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 51.54.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 51.54.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
185.210.85.66 attack
DATE:2020-02-27 15:25:22, IP:185.210.85.66, PORT:telnet Telnet brute force auth on honeypot server (epe-honey1-hq)
2020-02-27 22:43:01
221.124.192.239 attackspam
Honeypot attack, port: 5555, PTR: PTR record not found
2020-02-27 22:15:39
51.75.123.195 attackbotsspam
Feb 27 19:27:43 gw1 sshd[22504]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.123.195
Feb 27 19:27:45 gw1 sshd[22504]: Failed password for invalid user x from 51.75.123.195 port 46712 ssh2
...
2020-02-27 22:33:37
93.76.182.155 attackbotsspam
suspicious action Thu, 27 Feb 2020 11:27:35 -0300
2020-02-27 22:51:44
112.85.42.229 attackspam
no
2020-02-27 22:26:12
14.136.188.199 attack
unauthorized connection attempt
2020-02-27 22:11:13
81.182.14.167 attackbotsspam
unauthorized connection attempt
2020-02-27 22:23:14
115.160.142.106 attack
unauthorized connection attempt
2020-02-27 22:20:25
140.143.90.154 attackbotsspam
Feb 27 04:21:20 tdfoods sshd\[7619\]: Invalid user adrian from 140.143.90.154
Feb 27 04:21:20 tdfoods sshd\[7619\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.90.154
Feb 27 04:21:22 tdfoods sshd\[7619\]: Failed password for invalid user adrian from 140.143.90.154 port 58212 ssh2
Feb 27 04:27:38 tdfoods sshd\[8122\]: Invalid user nsroot from 140.143.90.154
Feb 27 04:27:38 tdfoods sshd\[8122\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.90.154
2020-02-27 22:43:19
103.28.52.84 attackspambots
Feb 27 09:27:41 plusreed sshd[27369]: Invalid user cod2server from 103.28.52.84
...
2020-02-27 22:39:21
198.204.252.106 attackspambots
MultiHost/MultiPort Probe, Scan, Hack -
2020-02-27 22:26:26
110.49.6.226 attackspam
Feb 27 13:07:18 h2177944 sshd\[9334\]: Invalid user wanghui from 110.49.6.226 port 44082
Feb 27 13:07:18 h2177944 sshd\[9334\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.49.6.226
Feb 27 13:07:20 h2177944 sshd\[9334\]: Failed password for invalid user wanghui from 110.49.6.226 port 44082 ssh2
Feb 27 13:28:54 h2177944 sshd\[10455\]: Invalid user cpanel from 110.49.6.226 port 34872
...
2020-02-27 22:18:52
106.12.5.96 attackspam
Feb 27 08:00:01 v22018076622670303 sshd\[20849\]: Invalid user rohit from 106.12.5.96 port 37072
Feb 27 08:00:01 v22018076622670303 sshd\[20849\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.5.96
Feb 27 08:00:04 v22018076622670303 sshd\[20849\]: Failed password for invalid user rohit from 106.12.5.96 port 37072 ssh2
...
2020-02-27 22:20:52
110.201.139.30 attack
Brute force blocker - service: proftpd1, proftpd2 - aantal: 63 - Fri Jul 13 16:00:18 2018
2020-02-27 22:53:37
117.251.21.23 attackbotsspam
Honeypot attack, port: 445, PTR: PTR record not found
2020-02-27 22:17:44

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