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 of America (the)

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 <<>> 168.21.220.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51369
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;168.21.220.81.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021700 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 17 18:36:38 CST 2025
;; MSG SIZE  rcvd: 106
Host info
Host 81.220.21.168.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 81.220.21.168.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
223.70.253.11 attack
SSH auth scanning - multiple failed logins
2020-05-02 23:58:11
51.75.254.172 attackbots
May  2 13:57:40 ns382633 sshd\[32149\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.254.172  user=root
May  2 13:57:42 ns382633 sshd\[32149\]: Failed password for root from 51.75.254.172 port 38262 ssh2
May  2 14:11:50 ns382633 sshd\[2562\]: Invalid user mapred from 51.75.254.172 port 40196
May  2 14:11:50 ns382633 sshd\[2562\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.254.172
May  2 14:11:52 ns382633 sshd\[2562\]: Failed password for invalid user mapred from 51.75.254.172 port 40196 ssh2
2020-05-02 23:57:43
82.209.235.178 attackspambots
Cluster member 192.168.0.31 (-) said, DENY 82.209.235.178, Reason:[(imapd) Failed IMAP login from 82.209.235.178 (BY/Belarus/-): 1 in the last 3600 secs]
2020-05-02 23:49:52
84.22.63.122 attackspambots
Spam Timestamp : 02-May-20 12:10   BlockList Provider  truncate.gbudb.net   (189)
2020-05-03 00:08:09
185.251.249.25 attackbotsspam
May  2 15:14:14 vpn01 sshd[2391]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.251.249.25
May  2 15:14:16 vpn01 sshd[2391]: Failed password for invalid user pbx from 185.251.249.25 port 58678 ssh2
...
2020-05-02 23:56:06
14.192.245.50 attack
Unauthorized connection attempt detected from IP address 14.192.245.50 to port 23 [T]
2020-05-03 00:19:49
129.204.139.26 attackspam
May  2 14:00:10 ns382633 sshd\[404\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.139.26  user=root
May  2 14:00:13 ns382633 sshd\[404\]: Failed password for root from 129.204.139.26 port 36658 ssh2
May  2 14:06:43 ns382633 sshd\[1552\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.139.26  user=root
May  2 14:06:46 ns382633 sshd\[1552\]: Failed password for root from 129.204.139.26 port 34158 ssh2
May  2 14:11:10 ns382633 sshd\[2530\]: Invalid user asf from 129.204.139.26 port 52090
May  2 14:11:10 ns382633 sshd\[2530\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.139.26
2020-05-03 00:23:46
5.196.70.107 attackspam
May  2 17:59:01 localhost sshd\[18340\]: Invalid user test from 5.196.70.107
May  2 17:59:01 localhost sshd\[18340\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.70.107
May  2 17:59:03 localhost sshd\[18340\]: Failed password for invalid user test from 5.196.70.107 port 36618 ssh2
May  2 18:04:28 localhost sshd\[19067\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.70.107  user=root
May  2 18:04:30 localhost sshd\[19067\]: Failed password for root from 5.196.70.107 port 44674 ssh2
...
2020-05-03 00:20:07
103.246.241.243 attackspambots
May  2 18:08:49 markkoudstaal sshd[26854]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.246.241.243
May  2 18:08:51 markkoudstaal sshd[26854]: Failed password for invalid user tyw from 103.246.241.243 port 44864 ssh2
May  2 18:13:11 markkoudstaal sshd[27775]: Failed password for root from 103.246.241.243 port 56358 ssh2
2020-05-03 00:28:19
122.51.125.104 attack
May  2 14:11:11 mail sshd[29609]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.125.104
May  2 14:11:13 mail sshd[29609]: Failed password for invalid user zq from 122.51.125.104 port 40252 ssh2
...
2020-05-03 00:22:26
187.189.65.51 attack
May  2 17:43:01 DAAP sshd[16165]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.189.65.51  user=root
May  2 17:43:03 DAAP sshd[16165]: Failed password for root from 187.189.65.51 port 49146 ssh2
May  2 17:47:05 DAAP sshd[16199]: Invalid user cfk from 187.189.65.51 port 59824
May  2 17:47:05 DAAP sshd[16199]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.189.65.51
May  2 17:47:05 DAAP sshd[16199]: Invalid user cfk from 187.189.65.51 port 59824
May  2 17:47:07 DAAP sshd[16199]: Failed password for invalid user cfk from 187.189.65.51 port 59824 ssh2
...
2020-05-03 00:11:25
194.116.134.6 attack
2020-05-02T16:17:21.757492shield sshd\[23545\]: Invalid user rohan from 194.116.134.6 port 56270
2020-05-02T16:17:21.761818shield sshd\[23545\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.116.134.6
2020-05-02T16:17:23.047789shield sshd\[23545\]: Failed password for invalid user rohan from 194.116.134.6 port 56270 ssh2
2020-05-02T16:21:05.956545shield sshd\[24327\]: Invalid user mattie from 194.116.134.6 port 33408
2020-05-02T16:21:05.960908shield sshd\[24327\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.116.134.6
2020-05-03 00:33:07
68.183.225.93 attack
68.183.225.93 - - \[02/May/2020:14:11:26 +0200\] "POST /wp-login.php HTTP/1.0" 200 6400 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
68.183.225.93 - - \[02/May/2020:14:11:29 +0200\] "POST /wp-login.php HTTP/1.0" 200 6412 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
68.183.225.93 - - \[02/May/2020:14:11:31 +0200\] "POST /wp-login.php HTTP/1.0" 200 6404 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2020-05-03 00:17:29
88.74.193.229 attackbotsspam
May  2 16:59:15 meumeu sshd[8586]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=88.74.193.229 
May  2 16:59:17 meumeu sshd[8586]: Failed password for invalid user cn from 88.74.193.229 port 54514 ssh2
May  2 17:04:56 meumeu sshd[9363]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=88.74.193.229 
...
2020-05-03 00:27:07
152.168.137.2 attackspambots
May  2 09:58:38 ny01 sshd[12208]: Failed password for root from 152.168.137.2 port 60010 ssh2
May  2 10:02:58 ny01 sshd[12736]: Failed password for root from 152.168.137.2 port 59990 ssh2
May  2 10:07:12 ny01 sshd[13263]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.168.137.2
2020-05-03 00:12:57

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