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 <<>> 104.21.73.54
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 34351
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.73.54.			IN	A

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

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:52:29 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 54.73.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 54.73.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
196.52.43.103 attackspambots
Honeypot attack, port: 389, PTR: 196.52.43.103.netsystemsresearch.com.
2019-06-26 08:03:56
185.176.27.90 attackspambots
firewall-block, port(s): 12879/tcp, 27607/tcp
2019-06-26 08:30:15
1.160.197.21 attackbots
37215/tcp
[2019-06-25]1pkt
2019-06-26 08:31:45
121.226.92.123 attack
2019-06-25T19:06:39.074976 X postfix/smtpd[47621]: warning: unknown[121.226.92.123]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-06-25T19:06:57.351411 X postfix/smtpd[47621]: warning: unknown[121.226.92.123]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-06-25T19:11:20.168840 X postfix/smtpd[48229]: warning: unknown[121.226.92.123]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-06-26 08:12:57
191.53.221.65 attackspambots
SASL PLAIN auth failed: ruser=...
2019-06-26 08:34:34
146.185.148.7 attack
Jun 25 19:57:20 debian sshd\[15315\]: Invalid user yann from 146.185.148.7 port 41331
Jun 25 19:57:20 debian sshd\[15315\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.185.148.7
Jun 25 19:57:22 debian sshd\[15315\]: Failed password for invalid user yann from 146.185.148.7 port 41331 ssh2
...
2019-06-26 08:19:32
23.94.138.15 attackspambots
Jun 25 01:19:31 xb3 sshd[11856]: reveeclipse mapping checking getaddrinfo for 23-94-138-15-host.colocrossing.com [23.94.138.15] failed - POSSIBLE BREAK-IN ATTEMPT!
Jun 25 01:19:33 xb3 sshd[11856]: Failed password for invalid user pmail from 23.94.138.15 port 50266 ssh2
Jun 25 01:19:33 xb3 sshd[11856]: Received disconnect from 23.94.138.15: 11: Bye Bye [preauth]
Jun 25 01:22:11 xb3 sshd[7121]: reveeclipse mapping checking getaddrinfo for 23-94-138-15-host.colocrossing.com [23.94.138.15] failed - POSSIBLE BREAK-IN ATTEMPT!
Jun 25 01:22:13 xb3 sshd[7121]: Failed password for invalid user tmp from 23.94.138.15 port 59870 ssh2
Jun 25 01:22:13 xb3 sshd[7121]: Received disconnect from 23.94.138.15: 11: Bye Bye [preauth]
Jun 25 01:24:29 xb3 sshd[12358]: reveeclipse mapping checking getaddrinfo for 23-94-138-15-host.colocrossing.com [23.94.138.15] failed - POSSIBLE BREAK-IN ATTEMPT!
Jun 25 01:24:32 xb3 sshd[12358]: Failed password for invalid user draytek from 23.94.138.15 port ........
-------------------------------
2019-06-26 08:05:50
177.99.197.111 attack
Jun 25 19:11:52 icinga sshd[30428]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.99.197.111
Jun 25 19:11:54 icinga sshd[30428]: Failed password for invalid user luser from 177.99.197.111 port 40265 ssh2
...
2019-06-26 07:54:22
37.114.135.220 attack
Lines containing failures of 37.114.135.220
Jun 25 19:03:34 hvs sshd[7167]: Invalid user admin from 37.114.135.220 port 57345
Jun 25 19:03:34 hvs sshd[7167]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.114.135.220 
Jun 25 19:03:36 hvs sshd[7167]: Failed password for invalid user admin from 37.114.135.220 port 57345 ssh2
Jun 25 19:03:38 hvs sshd[7167]: Connection closed by invalid user admin 37.114.135.220 port 57345 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=37.114.135.220
2019-06-26 08:31:29
212.108.148.150 attack
Jun 25 20:01:14 pl3server sshd[2111310]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.108.148.150  user=r.r
Jun 25 20:01:16 pl3server sshd[2111310]: Failed password for r.r from 212.108.148.150 port 37483 ssh2
Jun 25 20:01:17 pl3server sshd[2111310]: Failed password for r.r from 212.108.148.150 port 37483 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=212.108.148.150
2019-06-26 08:08:58
36.78.200.124 attackbotsspam
445/tcp
[2019-06-25]1pkt
2019-06-26 08:19:59
192.254.77.120 attackbotsspam
445/tcp
[2019-06-25]1pkt
2019-06-26 08:32:49
109.206.115.40 attackbots
TCP src-port=26669   dst-port=25    abuseat-org barracuda spamcop       (Project Honey Pot rated Suspicious)   (1198)
2019-06-26 07:51:28
37.189.70.118 attack
2019-06-25T21:46:26.858881scmdmz1 sshd\[4008\]: Invalid user nei from 37.189.70.118 port 36382
2019-06-25T21:46:26.861708scmdmz1 sshd\[4008\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.189.70.118
2019-06-25T21:46:28.880924scmdmz1 sshd\[4008\]: Failed password for invalid user nei from 37.189.70.118 port 36382 ssh2
...
2019-06-26 08:09:52
50.73.204.10 attack
Port Scan 3389
2019-06-26 08:19:10

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