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 <<>> 104.21.66.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 53291
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.66.81.			IN	A

;; AUTHORITY SECTION:
.			334	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 424 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:36:08 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 81.66.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.66.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
116.52.9.220 attackbotsspam
Jul 14 23:29:01 *** sshd[5328]: Did not receive identification string from 116.52.9.220
2019-07-15 10:09:53
113.176.163.41 attackspam
SSH Brute-Force attacks
2019-07-15 09:53:59
167.114.249.132 attack
2019-07-09T02:42:01.585607wiz-ks3 sshd[23214]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.ip-167-114-249.eu  user=root
2019-07-09T02:42:03.108637wiz-ks3 sshd[23214]: Failed password for root from 167.114.249.132 port 48936 ssh2
2019-07-09T02:42:08.637108wiz-ks3 sshd[23217]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.ip-167-114-249.eu  user=root
2019-07-09T02:42:10.455982wiz-ks3 sshd[23217]: Failed password for root from 167.114.249.132 port 36314 ssh2
2019-07-09T02:42:15.823507wiz-ks3 sshd[23225]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.ip-167-114-249.eu  user=root
2019-07-09T02:42:17.938235wiz-ks3 sshd[23225]: Failed password for root from 167.114.249.132 port 51954 ssh2
2019-07-09T02:42:23.117372wiz-ks3 sshd[23227]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=132.ip-167-114-249.eu  user=root
2019-07-09T02:42:25.32782
2019-07-15 09:42:15
51.38.186.182 attack
Jul 15 03:26:21 bouncer sshd\[31313\]: Invalid user jc from 51.38.186.182 port 34778
Jul 15 03:26:21 bouncer sshd\[31313\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.186.182 
Jul 15 03:26:23 bouncer sshd\[31313\]: Failed password for invalid user jc from 51.38.186.182 port 34778 ssh2
...
2019-07-15 10:13:18
116.104.95.159 attackspam
Automatic report - Port Scan Attack
2019-07-15 09:47:38
14.231.167.75 attackbotsspam
Brute force attempt
2019-07-15 10:06:45
185.97.113.132 attackbots
Jul 15 03:32:32 microserver sshd[59281]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.97.113.132  user=root
Jul 15 03:32:34 microserver sshd[59281]: Failed password for root from 185.97.113.132 port 40623 ssh2
Jul 15 03:38:06 microserver sshd[60010]: Invalid user ubuntu from 185.97.113.132 port 33815
Jul 15 03:38:06 microserver sshd[60010]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.97.113.132
Jul 15 03:38:08 microserver sshd[60010]: Failed password for invalid user ubuntu from 185.97.113.132 port 33815 ssh2
Jul 15 03:49:10 microserver sshd[61389]: Invalid user school from 185.97.113.132 port 28733
Jul 15 03:49:10 microserver sshd[61389]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.97.113.132
Jul 15 03:49:12 microserver sshd[61389]: Failed password for invalid user school from 185.97.113.132 port 28733 ssh2
Jul 15 03:54:46 microserver sshd[62056]: pam_unix(sshd:auth):
2019-07-15 10:24:25
218.26.97.162 attackbotsspam
IP: 218.26.97.162
ASN: AS4837 CHINA UNICOM China169 Backbone
Port: IMAP over TLS protocol 993
Found in one or more Blacklists
Date: 14/07/2019 10:15:10 PM UTC
2019-07-15 10:08:54
103.19.150.139 attackbots
Automatic report - Port Scan Attack
2019-07-15 10:21:28
103.60.137.4 attackspam
Jul 15 01:37:26 MK-Soft-VM3 sshd\[17425\]: Invalid user sms from 103.60.137.4 port 43628
Jul 15 01:37:26 MK-Soft-VM3 sshd\[17425\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.60.137.4
Jul 15 01:37:28 MK-Soft-VM3 sshd\[17425\]: Failed password for invalid user sms from 103.60.137.4 port 43628 ssh2
...
2019-07-15 10:18:27
117.135.131.123 attack
Jul 15 04:08:53 vps647732 sshd[31588]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.135.131.123
Jul 15 04:08:55 vps647732 sshd[31588]: Failed password for invalid user spark from 117.135.131.123 port 55095 ssh2
...
2019-07-15 10:16:52
206.189.134.83 attack
2019-07-14T21:10:58.073406abusebot-8.cloudsearch.cf sshd\[6655\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.189.134.83  user=root
2019-07-15 10:11:12
196.18.186.33 attack
Registration form abuse
2019-07-15 10:16:28
151.236.193.195 attack
Jul 15 03:22:19 ubuntu-2gb-nbg1-dc3-1 sshd[4173]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.236.193.195
Jul 15 03:22:22 ubuntu-2gb-nbg1-dc3-1 sshd[4173]: Failed password for invalid user nu from 151.236.193.195 port 26977 ssh2
...
2019-07-15 09:58:53
117.50.16.214 attack
Jul 15 07:32:00 areeb-Workstation sshd\[854\]: Invalid user h from 117.50.16.214
Jul 15 07:32:00 areeb-Workstation sshd\[854\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=117.50.16.214
Jul 15 07:32:02 areeb-Workstation sshd\[854\]: Failed password for invalid user h from 117.50.16.214 port 55500 ssh2
...
2019-07-15 10:23:45

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