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 <<>> 104.21.36.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21926
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.36.81.			IN	A

;; AUTHORITY SECTION:
.			564	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 57 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 21:18:53 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 81.36.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.36.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
45.136.109.15 attack
10/20/2019-09:29:02.358949 45.136.109.15 Protocol: 6 ET SCAN NMAP -sS window 1024
2019-10-20 22:33:46
60.190.114.82 attackbots
Oct 20 16:30:56 root sshd[8721]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.190.114.82 
Oct 20 16:30:58 root sshd[8721]: Failed password for invalid user amandabackup from 60.190.114.82 port 38582 ssh2
Oct 20 16:37:08 root sshd[8751]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.190.114.82 
...
2019-10-20 22:47:53
91.237.121.207 attack
Automatic report - Banned IP Access
2019-10-20 22:51:27
142.11.205.123 attackbotsspam
Oct 20 13:50:36 mxgate1 postfix/postscreen[6839]: CONNECT from [142.11.205.123]:40992 to [176.31.12.44]:25
Oct 20 13:50:36 mxgate1 postfix/dnsblog[6952]: addr 142.11.205.123 listed by domain zen.spamhaus.org as 127.0.0.3
Oct 20 13:50:36 mxgate1 postfix/dnsblog[6950]: addr 142.11.205.123 listed by domain b.barracudacentral.org as 127.0.0.2
Oct 20 13:50:42 mxgate1 postfix/postscreen[6839]: DNSBL rank 3 for [142.11.205.123]:40992
Oct x@x
Oct 20 13:50:43 mxgate1 postfix/postscreen[6839]: DISCONNECT [142.11.205.123]:40992


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=142.11.205.123
2019-10-20 22:50:22
14.162.193.9 attackspambots
Unauthorized connection attempt from IP address 14.162.193.9 on Port 445(SMB)
2019-10-20 22:48:55
107.179.95.9 attackbots
Oct 20 13:44:01 herz-der-gamer sshd[27328]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.179.95.9  user=root
Oct 20 13:44:03 herz-der-gamer sshd[27328]: Failed password for root from 107.179.95.9 port 39797 ssh2
Oct 20 14:02:16 herz-der-gamer sshd[27465]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.179.95.9  user=root
Oct 20 14:02:19 herz-der-gamer sshd[27465]: Failed password for root from 107.179.95.9 port 35348 ssh2
...
2019-10-20 22:46:29
113.168.199.123 attackbots
Oct 20 13:50:47 m3061 sshd[18091]: Address 113.168.199.123 maps to static.vnpt.vn, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Oct 20 13:50:47 m3061 sshd[18091]: Invalid user admin from 113.168.199.123
Oct 20 13:50:47 m3061 sshd[18091]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.168.199.123


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=113.168.199.123
2019-10-20 22:37:29
167.99.67.209 attackspambots
Oct 20 12:46:13 rb06 sshd[3338]: Failed password for invalid user test from 167.99.67.209 port 52192 ssh2
Oct 20 12:46:13 rb06 sshd[3338]: Received disconnect from 167.99.67.209: 11: Bye Bye [preauth]
Oct 20 12:58:41 rb06 sshd[13547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.67.209  user=r.r
Oct 20 12:58:43 rb06 sshd[13547]: Failed password for r.r from 167.99.67.209 port 49180 ssh2
Oct 20 12:58:43 rb06 sshd[13547]: Received disconnect from 167.99.67.209: 11: Bye Bye [preauth]
Oct 20 13:03:05 rb06 sshd[14583]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.67.209  user=r.r
Oct 20 13:03:07 rb06 sshd[14583]: Failed password for r.r from 167.99.67.209 port 60810 ssh2
Oct 20 13:03:07 rb06 sshd[14583]: Received disconnect from 167.99.67.209: 11: Bye Bye [preauth]
Oct 20 13:07:40 rb06 sshd[15187]: Failed password for invalid user abhijhostnameh from 167.99.67.209 port 44212 s........
-------------------------------
2019-10-20 22:45:46
211.159.152.252 attackbots
2019-10-20T13:28:50.410054abusebot-5.cloudsearch.cf sshd\[21217\]: Invalid user hp from 211.159.152.252 port 47209
2019-10-20 22:53:46
61.12.67.133 attackbots
$f2bV_matches
2019-10-20 22:31:22
123.31.47.121 attack
Oct 20 15:31:19 server sshd\[4860\]: Invalid user admin from 123.31.47.121
Oct 20 15:31:19 server sshd\[4860\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.47.121 
Oct 20 15:31:20 server sshd\[4860\]: Failed password for invalid user admin from 123.31.47.121 port 40116 ssh2
Oct 20 15:39:41 server sshd\[6713\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.47.121  user=root
Oct 20 15:39:43 server sshd\[6713\]: Failed password for root from 123.31.47.121 port 42734 ssh2
...
2019-10-20 22:12:47
110.80.17.26 attackspam
Oct 20 16:10:20 vpn01 sshd[22375]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=110.80.17.26
Oct 20 16:10:23 vpn01 sshd[22375]: Failed password for invalid user tomcat from 110.80.17.26 port 37036 ssh2
...
2019-10-20 22:38:44
104.236.31.227 attackbots
Oct 20 07:57:45 ny01 sshd[10037]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.31.227
Oct 20 07:57:47 ny01 sshd[10037]: Failed password for invalid user G$2#MZ0%1 from 104.236.31.227 port 47760 ssh2
Oct 20 08:02:26 ny01 sshd[10576]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.31.227
2019-10-20 22:43:09
167.86.77.140 attackbots
$f2bV_matches
2019-10-20 22:56:50
67.78.227.74 attack
Telnet/23 MH Probe, BF, Hack -
2019-10-20 22:17:30

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