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 <<>> 104.21.81.99
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3533
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.99.			IN	A

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

;; Query time: 90 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:03:10 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 99.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 99.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
104.236.75.62 attackspambots
Automatic report - XMLRPC Attack
2020-03-10 05:08:07
189.146.112.104 attackspam
firewall-block, port(s): 81/tcp
2020-03-10 05:15:07
112.198.43.130 attack
Dec 13 11:36:54 woltan sshd[9628]: Failed password for invalid user renck from 112.198.43.130 port 54184 ssh2
2020-03-10 05:23:04
167.172.243.24 attackspambots
Mar  9 21:10:05 ns382633 sshd\[29642\]: Invalid user ftp-user from 167.172.243.24 port 47520
Mar  9 21:10:05 ns382633 sshd\[29642\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.172.243.24
Mar  9 21:10:07 ns382633 sshd\[29642\]: Failed password for invalid user ftp-user from 167.172.243.24 port 47520 ssh2
Mar  9 21:16:30 ns382633 sshd\[30919\]: Invalid user oracle from 167.172.243.24 port 34448
Mar  9 21:16:30 ns382633 sshd\[30919\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.172.243.24
2020-03-10 05:10:57
187.84.191.110 attackspam
postfix (unknown user, SPF fail or relay access denied)
2020-03-10 05:37:44
35.194.155.110 attackbots
SSH authentication failure x 6 reported by Fail2Ban
...
2020-03-10 05:04:40
5.53.125.219 attack
Mar 10 00:03:22 server sshd\[15677\]: Invalid user ubuntu1 from 5.53.125.219
Mar 10 00:03:22 server sshd\[15677\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.53.125.219 
Mar 10 00:03:24 server sshd\[15677\]: Failed password for invalid user ubuntu1 from 5.53.125.219 port 45482 ssh2
Mar 10 00:13:49 server sshd\[17796\]: Invalid user frolov from 5.53.125.219
Mar 10 00:13:49 server sshd\[17796\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.53.125.219 
...
2020-03-10 05:30:59
178.171.90.80 attack
Chat Spam
2020-03-10 05:28:06
2.139.209.78 attackspambots
Mar 10 02:40:28 areeb-Workstation sshd[13671]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=2.139.209.78 
Mar 10 02:40:30 areeb-Workstation sshd[13671]: Failed password for invalid user qwe789asd45651 from 2.139.209.78 port 39695 ssh2
...
2020-03-10 05:11:47
213.14.112.92 attackspam
Mar  9 10:41:19 eddieflores sshd\[31455\]: Invalid user butter from 213.14.112.92
Mar  9 10:41:19 eddieflores sshd\[31455\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.14.112.92
Mar  9 10:41:21 eddieflores sshd\[31455\]: Failed password for invalid user butter from 213.14.112.92 port 60367 ssh2
Mar  9 10:48:06 eddieflores sshd\[31977\]: Invalid user jeff from 213.14.112.92
Mar  9 10:48:06 eddieflores sshd\[31977\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.14.112.92
2020-03-10 05:01:15
106.13.189.158 attackspambots
$f2bV_matches
2020-03-10 05:32:48
185.163.28.141 attackspambots
Postfix says : lost connection after STARTTLS from unknown[185.163.28.141]
2020-03-10 05:10:26
123.31.41.20 attackspam
Mar  9 17:08:19 NPSTNNYC01T sshd[9210]: Failed password for root from 123.31.41.20 port 37579 ssh2
Mar  9 17:13:55 NPSTNNYC01T sshd[9543]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.41.20
Mar  9 17:13:57 NPSTNNYC01T sshd[9543]: Failed password for invalid user 0 from 123.31.41.20 port 62346 ssh2
...
2020-03-10 05:22:49
106.13.188.147 attack
Nov  9 16:16:22 ms-srv sshd[55629]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.188.147  user=root
Nov  9 16:16:24 ms-srv sshd[55629]: Failed password for invalid user root from 106.13.188.147 port 49636 ssh2
2020-03-10 05:06:35
199.192.228.77 attackspam
Jul 23 06:49:59 ms-srv sshd[58962]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=199.192.228.77  user=root
Jul 23 06:50:01 ms-srv sshd[58962]: Failed password for invalid user root from 199.192.228.77 port 56364 ssh2
2020-03-10 05:18:41

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