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 <<>> 104.21.73.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 23936
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.73.81.			IN	A

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

;; Query time: 78 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:52:37 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 81.73.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.73.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
60.171.157.209 attackbots
'IP reached maximum auth failures for a one day block'
2019-11-19 08:32:26
113.65.146.121 attack
Plus code sniffing: 
113.65.146.121 - - [17/Nov/2019:10:55:08 +0000] "HEAD /plus/ad_js.php HTTP/1.1" 404 - "-" "-"
2019-11-19 08:48:25
84.17.52.55 attackspam
(From fastseoreporting@aol.com) Need better SEO reporting for your drmattjoseph.com website? Let's try http://seo-reporting.com It's Free for starter plan!
2019-11-19 08:43:37
83.233.60.202 attackspam
port scan and connect, tcp 23 (telnet)
2019-11-19 08:20:28
14.29.162.139 attackspam
2019-11-18T16:36:40.5434291495-001 sshd\[37016\]: Failed password for invalid user diuble from 14.29.162.139 port 53593 ssh2
2019-11-18T17:37:52.7193411495-001 sshd\[39143\]: Invalid user book from 14.29.162.139 port 17685
2019-11-18T17:37:52.7275181495-001 sshd\[39143\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.162.139
2019-11-18T17:37:55.5883731495-001 sshd\[39143\]: Failed password for invalid user book from 14.29.162.139 port 17685 ssh2
2019-11-18T17:42:08.9934001495-001 sshd\[39297\]: Invalid user iloveyou from 14.29.162.139 port 52973
2019-11-18T17:42:08.9994931495-001 sshd\[39297\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.162.139
...
2019-11-19 08:20:04
93.118.205.252 attackbotsspam
Telnet Server BruteForce Attack
2019-11-19 08:38:46
222.83.218.117 attack
(ftpd) Failed FTP login from 222.83.218.117 (CN/China/-): 10 in the last 3600 secs
2019-11-19 08:35:56
36.228.210.154 attackbots
port 23 attempt blocked
2019-11-19 08:19:33
37.49.231.133 attack
*Port Scan* detected from 37.49.231.133 (NL/Netherlands/khabhi.devilbomb.net). 4 hits in the last 140 seconds
2019-11-19 08:16:16
128.199.38.162 attackbots
Nov 19 00:55:01 MK-Soft-VM6 sshd[11276]: Failed password for root from 128.199.38.162 port 57720 ssh2
...
2019-11-19 08:16:29
110.43.37.200 attack
Nov 19 00:55:56 sso sshd[7278]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.43.37.200
Nov 19 00:55:58 sso sshd[7278]: Failed password for invalid user dauner from 110.43.37.200 port 17978 ssh2
...
2019-11-19 08:23:35
129.204.125.194 attack
Port scan on 1 port(s): 23
2019-11-19 08:40:09
1.175.92.51 attack
port 23 attempt blocked
2019-11-19 08:46:05
139.199.209.89 attackbotsspam
Nov 18 19:24:22 TORMINT sshd\[18110\]: Invalid user ftpuser from 139.199.209.89
Nov 18 19:24:22 TORMINT sshd\[18110\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.209.89
Nov 18 19:24:24 TORMINT sshd\[18110\]: Failed password for invalid user ftpuser from 139.199.209.89 port 42840 ssh2
...
2019-11-19 08:37:57
59.63.208.191 attackspambots
Nov 19 01:03:58 eventyay sshd[23722]: Failed password for root from 59.63.208.191 port 56852 ssh2
Nov 19 01:07:48 eventyay sshd[23749]: Failed password for root from 59.63.208.191 port 37214 ssh2
Nov 19 01:11:27 eventyay sshd[23809]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=59.63.208.191
...
2019-11-19 08:25:35

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