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 <<>> 21.72.66.75
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32171
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.72.66.75.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025012800 1800 900 604800 86400

;; Query time: 35 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Jan 28 22:30:42 CST 2025
;; MSG SIZE  rcvd: 104
Host info
Host 75.66.72.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 75.66.72.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
52.188.122.43 attackbotsspam
ece-17 : Block hidden directories=>/.env(/)
2020-05-30 12:15:34
51.79.68.147 attackspam
May 30 10:51:12 webhost01 sshd[19806]: Failed password for root from 51.79.68.147 port 37068 ssh2
...
2020-05-30 12:15:48
138.197.195.52 attackspam
May 30 04:17:20 game-panel sshd[29974]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.195.52
May 30 04:17:22 game-panel sshd[29974]: Failed password for invalid user guest01 from 138.197.195.52 port 52468 ssh2
May 30 04:21:19 game-panel sshd[30123]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.195.52
2020-05-30 12:26:06
106.12.42.251 attack
2020-05-30T03:47:09.524605abusebot-6.cloudsearch.cf sshd[592]: Invalid user chesteen from 106.12.42.251 port 52394
2020-05-30T03:47:09.530949abusebot-6.cloudsearch.cf sshd[592]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.42.251
2020-05-30T03:47:09.524605abusebot-6.cloudsearch.cf sshd[592]: Invalid user chesteen from 106.12.42.251 port 52394
2020-05-30T03:47:11.810887abusebot-6.cloudsearch.cf sshd[592]: Failed password for invalid user chesteen from 106.12.42.251 port 52394 ssh2
2020-05-30T03:50:41.329618abusebot-6.cloudsearch.cf sshd[857]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.42.251  user=root
2020-05-30T03:50:43.714834abusebot-6.cloudsearch.cf sshd[857]: Failed password for root from 106.12.42.251 port 44842 ssh2
2020-05-30T03:54:07.965414abusebot-6.cloudsearch.cf sshd[1153]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.42.251 
...
2020-05-30 12:48:08
106.53.28.5 attackspam
May 30 05:49:09 srv-ubuntu-dev3 sshd[15250]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.28.5  user=root
May 30 05:49:10 srv-ubuntu-dev3 sshd[15250]: Failed password for root from 106.53.28.5 port 37056 ssh2
May 30 05:50:55 srv-ubuntu-dev3 sshd[15521]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.28.5  user=root
May 30 05:50:57 srv-ubuntu-dev3 sshd[15521]: Failed password for root from 106.53.28.5 port 59614 ssh2
May 30 05:52:34 srv-ubuntu-dev3 sshd[15789]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.28.5  user=root
May 30 05:52:36 srv-ubuntu-dev3 sshd[15789]: Failed password for root from 106.53.28.5 port 53870 ssh2
May 30 05:54:15 srv-ubuntu-dev3 sshd[16037]: Invalid user csgo-server from 106.53.28.5
May 30 05:54:15 srv-ubuntu-dev3 sshd[16037]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106
...
2020-05-30 12:41:27
140.238.227.1 attackbotsspam
$f2bV_matches
2020-05-30 12:42:16
51.91.250.49 attack
2020-05-30T05:50:55.6012331240 sshd\[21773\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.250.49  user=root
2020-05-30T05:50:57.5750891240 sshd\[21773\]: Failed password for root from 51.91.250.49 port 52566 ssh2
2020-05-30T05:54:09.9112151240 sshd\[21954\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.91.250.49  user=root
...
2020-05-30 12:47:26
194.26.29.53 attackspam
May 30 06:10:04 debian-2gb-nbg1-2 kernel: \[13070587.200087\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=194.26.29.53 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=241 ID=9296 PROTO=TCP SPT=58461 DPT=4488 WINDOW=1024 RES=0x00 SYN URGP=0
2020-05-30 12:17:33
222.186.190.14 attackspam
$f2bV_matches
2020-05-30 12:25:18
91.109.120.99 attackbotsspam
Unauthorised access (May 30) SRC=91.109.120.99 LEN=40 TTL=56 ID=14530 TCP DPT=8080 WINDOW=12355 SYN 
Unauthorised access (May 30) SRC=91.109.120.99 LEN=40 TTL=56 ID=38715 TCP DPT=8080 WINDOW=12355 SYN 
Unauthorised access (May 29) SRC=91.109.120.99 LEN=40 TTL=56 ID=40299 TCP DPT=8080 WINDOW=12355 SYN
2020-05-30 12:40:20
27.50.169.167 attackspambots
May 30 05:54:45 haigwepa sshd[1142]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.50.169.167 
May 30 05:54:48 haigwepa sshd[1142]: Failed password for invalid user admin from 27.50.169.167 port 37000 ssh2
...
2020-05-30 12:17:05
189.18.243.210 attackspambots
"fail2ban match"
2020-05-30 12:27:51
185.143.74.93 attackspambots
2020-05-30 07:17:10 dovecot_login authenticator failed for \(User\) \[185.143.74.93\]: 535 Incorrect authentication data \(set_id=anu@org.ua\)2020-05-30 07:18:40 dovecot_login authenticator failed for \(User\) \[185.143.74.93\]: 535 Incorrect authentication data \(set_id=inb@org.ua\)2020-05-30 07:20:11 dovecot_login authenticator failed for \(User\) \[185.143.74.93\]: 535 Incorrect authentication data \(set_id=xenon@org.ua\)
...
2020-05-30 12:28:15
207.46.13.9 attack
Automatic report - Banned IP Access
2020-05-30 12:38:46
159.89.163.226 attack
...
2020-05-30 12:14:58

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