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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.81.161
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36870
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.161.			IN	A

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

;; Query time: 111 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:18 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 161.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 161.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
61.177.172.102 attackbotsspam
Jul 11 00:18:17 scw-6657dc sshd[18669]: Failed password for root from 61.177.172.102 port 25616 ssh2
Jul 11 00:18:17 scw-6657dc sshd[18669]: Failed password for root from 61.177.172.102 port 25616 ssh2
Jul 11 00:18:19 scw-6657dc sshd[18669]: Failed password for root from 61.177.172.102 port 25616 ssh2
...
2020-07-11 08:21:28
163.172.127.251 attack
Jul 11 00:41:42 dev0-dcde-rnet sshd[17358]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.172.127.251
Jul 11 00:41:44 dev0-dcde-rnet sshd[17358]: Failed password for invalid user jordanna from 163.172.127.251 port 42888 ssh2
Jul 11 00:44:38 dev0-dcde-rnet sshd[17389]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.172.127.251
2020-07-11 08:16:17
222.186.30.35 attackspambots
Jul 10 23:41:45 ip-172-31-61-156 sshd[9966]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35  user=root
Jul 10 23:41:47 ip-172-31-61-156 sshd[9966]: Failed password for root from 222.186.30.35 port 28719 ssh2
...
2020-07-11 07:50:29
54.37.163.11 attackspambots
Invalid user maruei from 54.37.163.11 port 55132
2020-07-11 07:49:54
185.234.219.12 attackbotsspam
2020-07-10T17:20:55.746108linuxbox-skyline auth[829262]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=norton rhost=185.234.219.12
...
2020-07-11 08:09:11
162.243.130.26 attackbotsspam
Attempts against SMTP/SSMTP
2020-07-11 08:04:51
46.158.225.63 attackbotsspam
1594415600 - 07/10/2020 23:13:20 Host: 46.158.225.63/46.158.225.63 Port: 445 TCP Blocked
2020-07-11 08:22:57
36.156.155.192 attackspambots
2020-07-10T21:15:08.960387mail.csmailer.org sshd[30071]: Invalid user admin2 from 36.156.155.192 port 43367
2020-07-10T21:15:08.963520mail.csmailer.org sshd[30071]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.156.155.192
2020-07-10T21:15:08.960387mail.csmailer.org sshd[30071]: Invalid user admin2 from 36.156.155.192 port 43367
2020-07-10T21:15:11.258252mail.csmailer.org sshd[30071]: Failed password for invalid user admin2 from 36.156.155.192 port 43367 ssh2
2020-07-10T21:18:33.369102mail.csmailer.org sshd[30241]: Invalid user sebastian from 36.156.155.192 port 10214
...
2020-07-11 08:04:29
147.158.114.165 attack
Hit honeypot r.
2020-07-11 08:13:11
31.42.189.222 attack
Login attack in my domain
2020-07-11 08:25:30
5.188.84.104 attackspambots
Brute force attack stopped by firewall
2020-07-11 08:18:25
162.243.129.79 attackspambots
GET /hudson
2020-07-11 08:09:45
140.143.247.30 attack
$f2bV_matches
2020-07-11 08:11:47
134.209.178.109 attackbotsspam
Jul 11 02:03:59 inter-technics sshd[31481]: Invalid user fina from 134.209.178.109 port 59460
Jul 11 02:03:59 inter-technics sshd[31481]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.178.109
Jul 11 02:03:59 inter-technics sshd[31481]: Invalid user fina from 134.209.178.109 port 59460
Jul 11 02:04:00 inter-technics sshd[31481]: Failed password for invalid user fina from 134.209.178.109 port 59460 ssh2
Jul 11 02:06:44 inter-technics sshd[31747]: Invalid user www from 134.209.178.109 port 48322
...
2020-07-11 08:14:02
206.189.222.181 attack
SSH Invalid Login
2020-07-11 07:56:32

Recently Reported IPs

104.21.81.16 104.21.81.162 104.21.81.160 104.21.81.165
104.21.81.166 104.21.81.164 104.21.81.170 104.21.81.17
104.21.81.167 104.21.81.171 104.21.81.173 104.21.81.174
104.21.81.175 104.21.81.176 104.21.81.177 21.227.99.217
104.21.81.18 104.21.81.186 104.21.81.178 104.21.81.185