104.21.81.21 - IPInfo

Basic Info

City: unknown

Region: unknown

Country: United States

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

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Comments on same subnet:

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Whois info:

Dig info:

; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.81.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 10777
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.21.			IN	A

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

;; Query time: 60 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:36 CST 2022
;; MSG SIZE  rcvd: 105

Host info

Host 21.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)

Nslookup info:

Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.81.21.104.in-addr.arpa: NXDOMAIN

Related IP info:

Related comments:

IP	Type	Details	Datetime
222.186.30.35	attackspam	Jun 26 16:45:11 Ubuntu-1404-trusty-64-minimal sshd\[8518\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35 user=root Jun 26 16:45:13 Ubuntu-1404-trusty-64-minimal sshd\[8518\]: Failed password for root from 222.186.30.35 port 17437 ssh2 Jun 26 16:45:20 Ubuntu-1404-trusty-64-minimal sshd\[8555\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35 user=root Jun 26 16:45:22 Ubuntu-1404-trusty-64-minimal sshd\[8555\]: Failed password for root from 222.186.30.35 port 51814 ssh2 Jun 26 16:45:31 Ubuntu-1404-trusty-64-minimal sshd\[8607\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35 user=root	2020-06-26 22:51:04
182.254.180.17	attackbotsspam	Jun 26 15:14:46 OPSO sshd\[4844\]: Invalid user stunnel4 from 182.254.180.17 port 36996 Jun 26 15:14:46 OPSO sshd\[4844\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.254.180.17 Jun 26 15:14:48 OPSO sshd\[4844\]: Failed password for invalid user stunnel4 from 182.254.180.17 port 36996 ssh2 Jun 26 15:16:56 OPSO sshd\[5330\]: Invalid user cardinal from 182.254.180.17 port 33080 Jun 26 15:16:56 OPSO sshd\[5330\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.254.180.17	2020-06-26 23:03:47
129.28.172.220	attackbotsspam	Jun 26 13:27:41 pve1 sshd[3576]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.28.172.220 Jun 26 13:27:44 pve1 sshd[3576]: Failed password for invalid user billy from 129.28.172.220 port 43184 ssh2 ...	2020-06-26 22:52:26
128.199.158.182	attack	128.199.158.182 - - [26/Jun/2020:12:27:12 +0100] "POST /wp-login.php HTTP/1.1" 200 2046 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" 128.199.158.182 - - [26/Jun/2020:12:27:15 +0100] "POST /wp-login.php HTTP/1.1" 200 2040 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" 128.199.158.182 - - [26/Jun/2020:12:27:18 +0100] "POST /wp-login.php HTTP/1.1" 200 2037 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0" ...	2020-06-26 23:10:35
163.172.113.19	attackbots	2020-06-26T15:48:50+0200 Failed SSH Authentication/Brute Force Attack.(Server 2)	2020-06-26 23:14:57
222.186.175.150	attack	Jun 26 14:59:35 localhost sshd[112982]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150 user=root Jun 26 14:59:37 localhost sshd[112982]: Failed password for root from 222.186.175.150 port 58434 ssh2 Jun 26 14:59:41 localhost sshd[112982]: Failed password for root from 222.186.175.150 port 58434 ssh2 Jun 26 14:59:35 localhost sshd[112982]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150 user=root Jun 26 14:59:37 localhost sshd[112982]: Failed password for root from 222.186.175.150 port 58434 ssh2 Jun 26 14:59:41 localhost sshd[112982]: Failed password for root from 222.186.175.150 port 58434 ssh2 Jun 26 14:59:35 localhost sshd[112982]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150 user=root Jun 26 14:59:37 localhost sshd[112982]: Failed password for root from 222.186.175.150 port 58434 ssh2 Jun 26 14:59:41 localhost ...	2020-06-26 23:07:07
218.92.0.224	attackbotsspam	W 5701,/var/log/auth.log,-,-	2020-06-26 23:14:36
125.160.196.89	attackbotsspam	TCP (SYN) 125.160.196.89:25976 -> port 23, len 44	2020-06-26 23:12:24
13.72.51.193	attack	Jun 26 14:40:27 localhost sshd\[3567\]: Invalid user admin from 13.72.51.193 port 16901 Jun 26 14:40:27 localhost sshd\[3567\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.72.51.193 Jun 26 14:40:29 localhost sshd\[3567\]: Failed password for invalid user admin from 13.72.51.193 port 16901 ssh2 ...	2020-06-26 22:44:28
67.205.155.68	attackspambots	Jun 26 14:08:13 ns382633 sshd\[10565\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=67.205.155.68 user=root Jun 26 14:08:15 ns382633 sshd\[10565\]: Failed password for root from 67.205.155.68 port 33074 ssh2 Jun 26 14:11:21 ns382633 sshd\[11275\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=67.205.155.68 user=root Jun 26 14:11:24 ns382633 sshd\[11275\]: Failed password for root from 67.205.155.68 port 44372 ssh2 Jun 26 14:12:34 ns382633 sshd\[11367\]: Invalid user tom from 67.205.155.68 port 36226 Jun 26 14:12:34 ns382633 sshd\[11367\]: pam_unix$sshd:auth$: authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=67.205.155.68	2020-06-26 22:37:30
148.66.132.190	attackspam	Jun 26 04:57:54 dignus sshd[8727]: Failed password for invalid user ejabberd from 148.66.132.190 port 37842 ssh2 Jun 26 05:01:36 dignus sshd[9084]: Invalid user deploy from 148.66.132.190 port 38318 Jun 26 05:01:36 dignus sshd[9084]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.66.132.190 Jun 26 05:01:37 dignus sshd[9084]: Failed password for invalid user deploy from 148.66.132.190 port 38318 ssh2 Jun 26 05:05:27 dignus sshd[9474]: Invalid user roberto from 148.66.132.190 port 38806 ...	2020-06-26 22:54:01
54.38.159.56	attackspam	2020-06-26T13:27:58+0200 Failed SSH Authentication/Brute Force Attack. (Server 5)	2020-06-26 22:40:57
183.56.201.121	attackbotsspam	$f2bV_matches	2020-06-26 23:11:07
185.165.169.168	attackbots	Jun 26 13:39:14 rush sshd[6344]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.165.169.168 Jun 26 13:39:16 rush sshd[6344]: Failed password for invalid user dev from 185.165.169.168 port 49048 ssh2 Jun 26 13:44:45 rush sshd[6496]: Failed password for root from 185.165.169.168 port 48358 ssh2 ...	2020-06-26 22:38:13
13.72.249.53	attackspam	Jun 26 16:14:55 sso sshd[5348]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.72.249.53 Jun 26 16:14:57 sso sshd[5348]: Failed password for invalid user user from 13.72.249.53 port 62319 ssh2 ...	2020-06-26 22:42:04

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