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 <<>> 104.21.81.212
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3321
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.81.212.			IN	A

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

;; Query time: 66 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:02:36 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 212.81.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 212.81.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
91.121.235.6 attackspam
2019-08-27 02:19:45 dovecot_login authenticator failed for ip6.ip-91-121-235.eu (ylmf-pc) [91.121.235.6]:60744: 535 Incorrect authentication data (set_id=denis)
2019-08-27 02:19:51 dovecot_login authenticator failed for ip6.ip-91-121-235.eu (ylmf-pc) [91.121.235.6]:55922: 535 Incorrect authentication data (set_id=denis)
2019-08-27 02:20:01 dovecot_login authenticator failed for ip6.ip-91-121-235.eu (ylmf-pc) [91.121.235.6]:54974: 535 Incorrect authentication data (set_id=denis)
2019-08-27 02:20:18 dovecot_login authenticator failed for ip6.ip-91-121-235.eu (ylmf-pc) [91.121.235.6]:51141: 535 Incorrect authentication data
2019-08-27 02:20:28 dovecot_login authenticator failed for ip6.ip-91-121-235.eu (ylmf-pc) [91.121.235.6]:58460: 535 Incorrect authentication data
2019-08-27 02:20:39 dovecot_login authenticator failed for ip6.ip-91-121-235.eu (ylmf-pc) [91.121.235.6]:56452: 535 Incorrect authentication data
2019-08-27 02:20:50 dovecot_login authenticator failed for ip6.i........
------------------------------
2019-08-27 08:00:52
134.175.23.46 attackspam
Aug 26 21:09:56 [munged] sshd[10624]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.175.23.46  user=www-data
Aug 26 21:09:58 [munged] sshd[10624]: Failed password for www-data from 134.175.23.46 port 42386 ssh2
2019-08-27 07:36:36
68.183.124.182 attack
Aug 26 13:38:48 kapalua sshd\[29187\]: Invalid user studen from 68.183.124.182
Aug 26 13:38:48 kapalua sshd\[29187\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.124.182
Aug 26 13:38:50 kapalua sshd\[29187\]: Failed password for invalid user studen from 68.183.124.182 port 47584 ssh2
Aug 26 13:42:55 kapalua sshd\[29680\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.124.182  user=root
Aug 26 13:42:57 kapalua sshd\[29680\]: Failed password for root from 68.183.124.182 port 37098 ssh2
2019-08-27 07:56:05
195.154.107.83 attack
Aug 26 19:24:19 acs-fhostnamelet2 sshd[10517]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.154.107.83
Aug 26 19:24:22 acs-fhostnamelet2 sshd[10517]: Failed password for invalid user sconsole from 195.154.107.83 port 51017 ssh2
Aug 26 19:24:22 acs-fhostnamelet2 sshd[10517]: error: Received disconnect from 195.154.107.83 port 51017:3: com.jcraft.jsch.JSchException: Auth fail [preauth]
...

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=195.154.107.83
2019-08-27 08:11:09
23.129.64.195 attackbots
Aug 27 01:44:02 mail sshd[17702]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.195  user=sshd
Aug 27 01:44:03 mail sshd[17702]: Failed password for sshd from 23.129.64.195 port 64856 ssh2
Aug 27 01:44:04 mail sshd[17702]: Failed password for sshd from 23.129.64.195 port 64856 ssh2
Aug 27 01:44:02 mail sshd[17702]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.195  user=sshd
Aug 27 01:44:03 mail sshd[17702]: Failed password for sshd from 23.129.64.195 port 64856 ssh2
Aug 27 01:44:04 mail sshd[17702]: Failed password for sshd from 23.129.64.195 port 64856 ssh2
Aug 27 01:44:02 mail sshd[17702]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.195  user=sshd
Aug 27 01:44:03 mail sshd[17702]: Failed password for sshd from 23.129.64.195 port 64856 ssh2
Aug 27 01:44:04 mail sshd[17702]: Failed password for sshd from 23.129.64.195 port 64856 ssh2
Aug 27 01:44:15 mai
2019-08-27 07:55:50
177.136.179.20 attack
2019-08-27 00:20:08 H=([177.136.179.20]) [177.136.179.20]:2651 I=[10.100.18.21]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=177.136.179.20)
2019-08-27 00:20:08 unexpected disconnection while reading SMTP command from ([177.136.179.20]) [177.136.179.20]:2651 I=[10.100.18.21]:25 (error: Connection reset by peer)
2019-08-27 01:25:10 H=([177.136.179.20]) [177.136.179.20]:2096 I=[10.100.18.21]:25 F=: Host/domain is listed in RBL cbl.abuseat.org (Blocked - see hxxp://www.abuseat.org/lookup.cgi?ip=177.136.179.20)


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=177.136.179.20
2019-08-27 08:08:03
51.75.248.159 attackspam
Aug 27 01:06:17 MK-Soft-Root2 sshd\[19872\]: Invalid user bowling from 51.75.248.159 port 50992
Aug 27 01:06:17 MK-Soft-Root2 sshd\[19872\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.75.248.159
Aug 27 01:06:20 MK-Soft-Root2 sshd\[19872\]: Failed password for invalid user bowling from 51.75.248.159 port 50992 ssh2
...
2019-08-27 07:30:33
61.224.67.188 attackbotsspam
MultiHost/MultiPort Probe, Scan, Hack -
2019-08-27 07:42:29
181.229.35.23 attackbotsspam
Aug 26 16:03:42 microserver sshd[41549]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.229.35.23  user=root
Aug 26 16:03:44 microserver sshd[41549]: Failed password for root from 181.229.35.23 port 54197 ssh2
Aug 26 16:09:17 microserver sshd[42188]: Invalid user cisco from 181.229.35.23 port 49289
Aug 26 16:09:17 microserver sshd[42188]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.229.35.23
Aug 26 16:09:19 microserver sshd[42188]: Failed password for invalid user cisco from 181.229.35.23 port 49289 ssh2
Aug 26 16:32:09 microserver sshd[45262]: Invalid user admin2 from 181.229.35.23 port 57443
Aug 26 16:32:09 microserver sshd[45262]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.229.35.23
Aug 26 16:32:11 microserver sshd[45262]: Failed password for invalid user admin2 from 181.229.35.23 port 57443 ssh2
Aug 26 16:37:41 microserver sshd[45900]: Invalid user tmp from 181.229.
2019-08-27 07:42:58
159.89.238.247 attack
Aug 26 13:39:20 php1 sshd\[20320\]: Invalid user pk from 159.89.238.247
Aug 26 13:39:20 php1 sshd\[20320\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.238.247
Aug 26 13:39:22 php1 sshd\[20320\]: Failed password for invalid user pk from 159.89.238.247 port 46938 ssh2
Aug 26 13:43:10 php1 sshd\[20666\]: Invalid user sss from 159.89.238.247
Aug 26 13:43:10 php1 sshd\[20666\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.238.247
2019-08-27 07:46:34
134.249.133.197 attack
Aug 26 23:38:11 localhost sshd\[129152\]: Invalid user test2 from 134.249.133.197 port 34352
Aug 26 23:38:11 localhost sshd\[129152\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.249.133.197
Aug 26 23:38:13 localhost sshd\[129152\]: Failed password for invalid user test2 from 134.249.133.197 port 34352 ssh2
Aug 26 23:42:58 localhost sshd\[129356\]: Invalid user rachel from 134.249.133.197 port 48112
Aug 26 23:42:58 localhost sshd\[129356\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.249.133.197
...
2019-08-27 07:55:31
188.166.158.33 attackspam
Invalid user guest from 188.166.158.33 port 37312
2019-08-27 08:01:25
198.245.49.37 attackspam
Aug 26 16:02:43 *** sshd[29321]: Failed password for invalid user backuppc from 198.245.49.37 port 48140 ssh2
Aug 26 16:06:37 *** sshd[29416]: Failed password for invalid user sigmund from 198.245.49.37 port 37762 ssh2
Aug 26 16:10:32 *** sshd[29528]: Failed password for invalid user wuhao from 198.245.49.37 port 55708 ssh2
Aug 26 16:14:25 *** sshd[29590]: Failed password for invalid user user03 from 198.245.49.37 port 45226 ssh2
Aug 26 16:18:23 *** sshd[29651]: Failed password for invalid user zabbix from 198.245.49.37 port 34860 ssh2
Aug 26 16:22:26 *** sshd[29753]: Failed password for invalid user support from 198.245.49.37 port 52686 ssh2
Aug 26 16:26:19 *** sshd[29852]: Failed password for invalid user admin from 198.245.49.37 port 42144 ssh2
Aug 26 16:30:15 *** sshd[29912]: Failed password for invalid user test from 198.245.49.37 port 59730 ssh2
Aug 26 16:34:16 *** sshd[29966]: Failed password for invalid user mysql from 198.245.49.37 port 49146 ssh2
Aug 26 16:38:15 *** sshd[30029]: Failed password for
2019-08-27 07:27:35
119.4.13.52 attackspam
2019-08-27T01:03:07.494138  sshd[16695]: Invalid user ftpuser from 119.4.13.52 port 55472
2019-08-27T01:03:07.509016  sshd[16695]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.4.13.52
2019-08-27T01:03:07.494138  sshd[16695]: Invalid user ftpuser from 119.4.13.52 port 55472
2019-08-27T01:03:09.275861  sshd[16695]: Failed password for invalid user ftpuser from 119.4.13.52 port 55472 ssh2
2019-08-27T01:10:47.724151  sshd[16794]: Invalid user natasha from 119.4.13.52 port 49844
...
2019-08-27 07:31:07
23.129.64.186 attackspam
Aug 26 23:42:41 sshgateway sshd\[17226\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.186  user=sshd
Aug 26 23:42:43 sshgateway sshd\[17226\]: Failed password for sshd from 23.129.64.186 port 54158 ssh2
Aug 26 23:42:57 sshgateway sshd\[17226\]: error: maximum authentication attempts exceeded for sshd from 23.129.64.186 port 54158 ssh2 \[preauth\]
2019-08-27 07:57:01

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