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: None

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 <<>> 104.21.72.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4379
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.57.			IN	A

;; AUTHORITY SECTION:
.			110	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 25 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:18:42 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 57.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 57.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
192.99.116.11 attackspam
Unauthorized connection attempt from IP address 192.99.116.11 on Port 3389(RDP)
2019-07-07 04:37:29
93.26.254.135 attackbotsspam
Jul  6 20:25:11 mailserver dovecot: imap-login: Disconnected (auth failed, 1 attempts in 2 secs): user=<[hidden]>, method=PLAIN, rip=93.26.254.135, lip=[hidden], TLS, session=<6oW+VAeNVcpdGv6H>
Jul  6 20:29:59 mailserver dovecot: imap-login: ID sent: name=Mac OS X Mail, version=6.6 (1510), os=Mac OS X, os-version=10.8.5 (12F2560), vendor=Apple Inc.: user=<>, rip=93.26.254.135, lip=[hidden], TLS, session=
Jul  6 20:30:00 mailserver dovecot: auth-worker(92774): sql([hidden],93.26.254.135,): Password mismatch
Jul  6 20:30:02 mailserver dovecot: imap-login: Disconnected (auth failed, 1 attempts in 2 secs): user=<[hidden]>, method=PLAIN, rip=93.26.254.135, lip=[hidden], TLS, session=
Jul  6 20:30:02 mailserver dovecot: imap-login: ID sent: name=Mac OS X Mail, version=6.6 (1510), os=Mac OS X, os-version=10.8.5 (12F2560), vendor=Apple Inc.: user=<>, rip=93.26.254.135, lip=[hidden], TLS, session=
Jul  6 20:30:06 mailserver dovecot: auth-worker(92
2019-07-07 04:31:56
150.129.118.220 attackspambots
Jul  6 09:45:05 vps200512 sshd\[24586\]: Invalid user eg from 150.129.118.220
Jul  6 09:45:05 vps200512 sshd\[24586\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.129.118.220
Jul  6 09:45:07 vps200512 sshd\[24586\]: Failed password for invalid user eg from 150.129.118.220 port 14586 ssh2
Jul  6 09:47:48 vps200512 sshd\[24626\]: Invalid user automne from 150.129.118.220
Jul  6 09:47:48 vps200512 sshd\[24626\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.129.118.220
2019-07-07 04:39:53
187.87.39.217 attack
06.07.2019 13:21:59 SSH access blocked by firewall
2019-07-07 04:19:41
217.182.71.54 attackspambots
Jul  6 10:58:15 vps200512 sshd\[25676\]: Invalid user zheng from 217.182.71.54
Jul  6 10:58:15 vps200512 sshd\[25676\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.182.71.54
Jul  6 10:58:16 vps200512 sshd\[25676\]: Failed password for invalid user zheng from 217.182.71.54 port 60478 ssh2
Jul  6 11:00:25 vps200512 sshd\[25719\]: Invalid user www from 217.182.71.54
Jul  6 11:00:25 vps200512 sshd\[25719\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.182.71.54
2019-07-07 04:44:47
175.203.95.49 attackbotsspam
SSH Brute-Force reported by Fail2Ban
2019-07-07 04:32:39
84.52.122.77 attackbotsspam
Jul  6 15:20:14 [munged] sshd[8039]: Invalid user sniffer from 84.52.122.77 port 57076
Jul  6 15:20:20 [munged] sshd[8039]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=84.52.122.77
2019-07-07 04:52:50
112.74.94.30 attack
Hit on /wp-login.php
2019-07-07 04:09:39
46.101.1.198 attackspambots
Jul  6 20:22:36 sshgateway sshd\[4783\]: Invalid user denied from 46.101.1.198
Jul  6 20:22:36 sshgateway sshd\[4783\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.101.1.198
Jul  6 20:22:38 sshgateway sshd\[4783\]: Failed password for invalid user denied from 46.101.1.198 port 34959 ssh2
2019-07-07 04:32:13
191.53.197.150 attackspambots
failed_logins
2019-07-07 04:52:27
198.50.161.20 attackbotsspam
2019-07-06T14:16:32.335348hub.schaetter.us sshd\[11169\]: Invalid user jb from 198.50.161.20
2019-07-06T14:16:32.392670hub.schaetter.us sshd\[11169\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip20.ip-198-50-161.net
2019-07-06T14:16:34.497031hub.schaetter.us sshd\[11169\]: Failed password for invalid user jb from 198.50.161.20 port 56842 ssh2
2019-07-06T14:18:48.619294hub.schaetter.us sshd\[11177\]: Invalid user deploy from 198.50.161.20
2019-07-06T14:18:48.660571hub.schaetter.us sshd\[11177\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip20.ip-198-50-161.net
...
2019-07-07 04:19:08
37.59.38.137 attack
Jul  6 18:52:05 lnxweb62 sshd[12066]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.59.38.137
2019-07-07 04:35:19
221.204.11.179 attackspambots
Jul  6 15:18:37 tux-35-217 sshd\[10060\]: Invalid user ftpsecure from 221.204.11.179 port 46875
Jul  6 15:18:37 tux-35-217 sshd\[10060\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.204.11.179
Jul  6 15:18:39 tux-35-217 sshd\[10060\]: Failed password for invalid user ftpsecure from 221.204.11.179 port 46875 ssh2
Jul  6 15:22:08 tux-35-217 sshd\[10062\]: Invalid user george from 221.204.11.179 port 59226
Jul  6 15:22:08 tux-35-217 sshd\[10062\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.204.11.179
...
2019-07-07 04:16:32
185.176.27.118 attackspambots
firewall-block, port(s): 3386/tcp, 3388/tcp, 3397/tcp, 33384/tcp
2019-07-07 04:45:04
88.149.181.240 attackspam
Port scan attempt detected by AWS-CCS, CTS, India
2019-07-07 04:48:39

Recently Reported IPs

13.225.71.75 104.21.72.49 104.21.72.7 104.21.72.94
104.21.72.9 104.21.72.88 104.21.73.113 104.21.72.91
104.21.72.95 104.21.73.146 104.21.73.135 104.21.73.150
104.21.73.13 104.21.73.157 104.21.73.148 104.21.73.160
13.225.71.76 13.225.71.77 104.21.73.171 104.21.73.164