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 <<>> 104.21.81.66
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15981
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.66.			IN	A

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

;; Query time: 58 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:03:01 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 66.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 66.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
103.232.123.93 attack
Unauthorized connection attempt detected from IP address 103.232.123.93 to port 1433 [J]
2020-01-16 18:49:45
124.123.30.27 attackspam
1579149969 - 01/16/2020 05:46:09 Host: 124.123.30.27/124.123.30.27 Port: 445 TCP Blocked
2020-01-16 18:57:19
5.122.212.51 attackspambots
Unauthorized connection attempt from IP address 5.122.212.51 on Port 445(SMB)
2020-01-16 18:58:01
68.183.184.35 attack
Unauthorized connection attempt detected from IP address 68.183.184.35 to port 2220 [J]
2020-01-16 18:55:46
1.1.128.45 attackspam
1579150758 - 01/16/2020 05:59:18 Host: 1.1.128.45/1.1.128.45 Port: 445 TCP Blocked
2020-01-16 18:39:13
45.143.220.166 attackspambots
[2020-01-16 05:34:46] NOTICE[2175][C-0000305c] chan_sip.c: Call from '' (45.143.220.166:59755) to extension '9011441519470639' rejected because extension not found in context 'public'.
[2020-01-16 05:34:46] SECURITY[2212] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-01-16T05:34:46.156-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011441519470639",SessionID="0x7f5ac4c6fb48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/45.143.220.166/59755",ACLName="no_extension_match"
[2020-01-16 05:35:06] NOTICE[2175][C-0000305d] chan_sip.c: Call from '' (45.143.220.166:61233) to extension '011441519470639' rejected because extension not found in context 'public'.
[2020-01-16 05:35:06] SECURITY[2212] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-01-16T05:35:06.680-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="011441519470639",SessionID="0x7f5ac48ee978",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4
...
2020-01-16 18:38:33
61.153.50.242 attackbotsspam
Unauthorized connection attempt from IP address 61.153.50.242 on Port 445(SMB)
2020-01-16 18:50:52
195.201.85.198 attackbotsspam
Jan 16 00:09:35 giraffe sshd[26036]: Invalid user mis from 195.201.85.198
Jan 16 00:09:35 giraffe sshd[26036]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.201.85.198
Jan 16 00:09:37 giraffe sshd[26036]: Failed password for invalid user mis from 195.201.85.198 port 55004 ssh2
Jan 16 00:09:37 giraffe sshd[26036]: Received disconnect from 195.201.85.198 port 55004:11: Bye Bye [preauth]
Jan 16 00:09:37 giraffe sshd[26036]: Disconnected from 195.201.85.198 port 55004 [preauth]
Jan 16 00:19:33 giraffe sshd[26648]: Invalid user test from 195.201.85.198
Jan 16 00:19:33 giraffe sshd[26648]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.201.85.198
Jan 16 00:19:35 giraffe sshd[26648]: Failed password for invalid user test from 195.201.85.198 port 37292 ssh2
Jan 16 00:19:35 giraffe sshd[26648]: Received disconnect from 195.201.85.198 port 37292:11: Bye Bye [preauth]
Jan 16 00:19:35 giraffe........
-------------------------------
2020-01-16 18:19:59
107.189.11.193 attack
Invalid user fake from 107.189.11.193 port 42396
2020-01-16 18:45:37
220.120.106.254 attackbotsspam
Unauthorized connection attempt detected from IP address 220.120.106.254 to port 2220 [J]
2020-01-16 18:36:37
163.172.93.131 attackbots
Unauthorized connection attempt detected from IP address 163.172.93.131 to port 2220 [J]
2020-01-16 18:34:19
189.166.5.40 attack
Unauthorized connection attempt from IP address 189.166.5.40 on Port 445(SMB)
2020-01-16 18:25:39
52.184.148.231 attack
Unauthorized connection attempt detected from IP address 52.184.148.231 to port 2220 [J]
2020-01-16 18:48:27
117.239.233.18 attackspambots
Unauthorized connection attempt from IP address 117.239.233.18 on Port 445(SMB)
2020-01-16 18:33:52
192.99.237.245 attackspambots
3389BruteforceStormFW23
2020-01-16 18:21:54

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