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 <<>> 104.21.52.216
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15620
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.52.216.			IN	A

;; AUTHORITY SECTION:
.			454	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 24 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 23:49:27 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 216.52.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 216.52.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
177.104.254.68 attackspambots
Jun 22 14:03:30 s1 postfix/submission/smtpd\[32372\]: warning: unknown\[177.104.254.68\]: SASL PLAIN authentication failed:
Jun 22 14:03:37 s1 postfix/submission/smtpd\[32372\]: warning: unknown\[177.104.254.68\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 22 14:03:48 s1 postfix/submission/smtpd\[32399\]: warning: unknown\[177.104.254.68\]: SASL PLAIN authentication failed:
Jun 22 14:03:59 s1 postfix/submission/smtpd\[32399\]: warning: unknown\[177.104.254.68\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 22 14:04:05 s1 postfix/smtps/smtpd\[1101\]: warning: unknown\[177.104.254.68\]: SASL PLAIN authentication failed:
Jun 22 14:04:09 s1 postfix/smtps/smtpd\[1101\]: warning: unknown\[177.104.254.68\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 22 14:04:35 s1 postfix/submission/smtpd\[32372\]: warning: unknown\[177.104.254.68\]: SASL PLAIN authentication failed:
Jun 22 14:04:38 s1 postfix/submission/smtpd\[32372\]: warning: unknown\[177.104.254.68\]: SASL LOGIN authentication failed: UGFzc
2020-06-22 23:46:22
218.92.0.172 attackspambots
Jun 22 17:03:22 pve1 sshd[22105]: Failed password for root from 218.92.0.172 port 16472 ssh2
Jun 22 17:03:27 pve1 sshd[22105]: Failed password for root from 218.92.0.172 port 16472 ssh2
...
2020-06-22 23:08:19
194.28.50.114 attack
Unauthorized connection attempt detected from IP address 194.28.50.114 to port 4186
2020-06-22 23:11:12
180.215.216.208 attackspambots
Auto Fail2Ban report, multiple SSH login attempts.
2020-06-22 23:44:09
1.255.153.167 attackspam
Jun 22 17:34:36 vmd17057 sshd[29350]: Failed password for root from 1.255.153.167 port 54496 ssh2
Jun 22 17:38:10 vmd17057 sshd[29550]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.255.153.167 
...
2020-06-22 23:50:43
103.100.210.151 attack
Jun 22 15:01:41 l02a sshd[29792]: Invalid user postgres from 103.100.210.151
Jun 22 15:01:41 l02a sshd[29792]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.100.210.151 
Jun 22 15:01:41 l02a sshd[29792]: Invalid user postgres from 103.100.210.151
Jun 22 15:01:43 l02a sshd[29792]: Failed password for invalid user postgres from 103.100.210.151 port 43570 ssh2
2020-06-22 23:44:31
171.211.6.76 attackbots
Lines containing failures of 171.211.6.76
Jun 22 07:42:15 penfold sshd[27175]: Invalid user private from 171.211.6.76 port 54454
Jun 22 07:42:15 penfold sshd[27175]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.211.6.76 
Jun 22 07:42:17 penfold sshd[27175]: Failed password for invalid user private from 171.211.6.76 port 54454 ssh2
Jun 22 07:42:19 penfold sshd[27175]: Received disconnect from 171.211.6.76 port 54454:11: Bye Bye [preauth]
Jun 22 07:42:19 penfold sshd[27175]: Disconnected from invalid user private 171.211.6.76 port 54454 [preauth]
Jun 22 07:48:31 penfold sshd[27558]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.211.6.76  user=r.r
Jun 22 07:48:33 penfold sshd[27558]: Failed password for r.r from 171.211.6.76 port 52892 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=171.211.6.76
2020-06-22 23:20:28
103.145.12.163 attackspam
06/22/2020-09:47:19.922555 103.145.12.163 Protocol: 17 ET SCAN Sipvicious User-Agent Detected (friendly-scanner)
2020-06-22 23:26:36
37.59.48.181 attackbotsspam
Jun 22 15:09:58 fhem-rasp sshd[3888]: Invalid user service from 37.59.48.181 port 53994
...
2020-06-22 23:26:54
85.86.197.164 attack
2020-06-22T14:08:57.565120abusebot-6.cloudsearch.cf sshd[21746]: Invalid user service from 85.86.197.164 port 44978
2020-06-22T14:08:57.570776abusebot-6.cloudsearch.cf sshd[21746]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.85-86-197.dynamic.clientes.euskaltel.es
2020-06-22T14:08:57.565120abusebot-6.cloudsearch.cf sshd[21746]: Invalid user service from 85.86.197.164 port 44978
2020-06-22T14:08:59.315023abusebot-6.cloudsearch.cf sshd[21746]: Failed password for invalid user service from 85.86.197.164 port 44978 ssh2
2020-06-22T14:15:12.369006abusebot-6.cloudsearch.cf sshd[22153]: Invalid user linux from 85.86.197.164 port 44122
2020-06-22T14:15:12.375464abusebot-6.cloudsearch.cf sshd[22153]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.85-86-197.dynamic.clientes.euskaltel.es
2020-06-22T14:15:12.369006abusebot-6.cloudsearch.cf sshd[22153]: Invalid user linux from 85.86.197.164 port 44122
2020-
...
2020-06-22 23:08:39
41.193.46.251 attackbotsspam
Honeypot attack, port: 445, PTR: PTR record not found
2020-06-22 23:32:11
14.228.124.92 attack
1592827516 - 06/22/2020 14:05:16 Host: 14.228.124.92/14.228.124.92 Port: 445 TCP Blocked
2020-06-22 23:15:27
222.186.175.150 attack
Tried sshing with brute force.
2020-06-22 23:41:44
104.248.181.156 attackbotsspam
Jun 22 15:41:37 buvik sshd[4178]: Invalid user silvia from 104.248.181.156
Jun 22 15:41:37 buvik sshd[4178]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.181.156
Jun 22 15:41:38 buvik sshd[4178]: Failed password for invalid user silvia from 104.248.181.156 port 39192 ssh2
...
2020-06-22 23:41:17
185.202.0.27 attackspam
Unauthorized connection attempt detected from IP address 185.202.0.27 to port 3375
2020-06-22 23:30:36

Recently Reported IPs

104.21.52.213 104.21.52.22 104.21.52.223 104.21.52.225
104.21.52.226 153.207.138.67 104.21.52.234 104.21.52.235
104.21.52.236 104.21.52.239 104.21.52.24 104.21.52.245
104.21.52.248 104.21.52.25 104.21.52.251 104.21.52.252
104.21.52.254 104.21.52.27 104.21.52.3 104.21.52.31