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 <<>> 104.21.57.38
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32994
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.38.			IN	A

;; AUTHORITY SECTION:
.			387	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 60 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:35:00 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 38.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 38.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
203.86.24.203 attack
Nov  4 05:48:09 vps58358 sshd\[16907\]: Invalid user tester from 203.86.24.203Nov  4 05:48:12 vps58358 sshd\[16907\]: Failed password for invalid user tester from 203.86.24.203 port 54892 ssh2Nov  4 05:52:35 vps58358 sshd\[16918\]: Invalid user cz from 203.86.24.203Nov  4 05:52:37 vps58358 sshd\[16918\]: Failed password for invalid user cz from 203.86.24.203 port 35626 ssh2Nov  4 05:57:00 vps58358 sshd\[16937\]: Invalid user git from 203.86.24.203Nov  4 05:57:02 vps58358 sshd\[16937\]: Failed password for invalid user git from 203.86.24.203 port 44574 ssh2
...
2019-11-04 13:24:31
82.214.118.6 attack
diesunddas.net 82.214.118.6 \[04/Nov/2019:05:56:59 +0100\] "POST /wp-login.php HTTP/1.1" 200 9647 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
diesunddas.net 82.214.118.6 \[04/Nov/2019:05:57:01 +0100\] "POST /wp-login.php HTTP/1.1" 200 8408 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2019-11-04 13:25:09
163.172.145.170 attack
Nov  4 05:57:16 cvbnet sshd[30353]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.172.145.170 
Nov  4 05:57:18 cvbnet sshd[30353]: Failed password for invalid user 46.231.126.13 from 163.172.145.170 port 54224 ssh2
...
2019-11-04 13:11:46
222.186.175.151 attackspambots
Nov  4 06:16:37 fr01 sshd[24643]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.151  user=root
Nov  4 06:16:39 fr01 sshd[24643]: Failed password for root from 222.186.175.151 port 33724 ssh2
...
2019-11-04 13:19:44
182.61.19.79 attackbotsspam
Nov  4 05:52:15 vps691689 sshd[18912]: Failed password for root from 182.61.19.79 port 57808 ssh2
Nov  4 05:57:19 vps691689 sshd[19010]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.19.79
...
2019-11-04 13:11:26
222.186.173.183 attackbots
Nov  4 06:06:14 vpn01 sshd[9995]: Failed password for root from 222.186.173.183 port 56140 ssh2
Nov  4 06:06:17 vpn01 sshd[9995]: Failed password for root from 222.186.173.183 port 56140 ssh2
...
2019-11-04 13:08:29
124.42.117.243 attackbotsspam
Nov  4 00:13:02 plusreed sshd[12342]: Invalid user ftpuser from 124.42.117.243
...
2019-11-04 13:25:54
111.231.54.33 attackspambots
Nov  4 06:10:40 vps691689 sshd[19369]: Failed password for root from 111.231.54.33 port 56894 ssh2
Nov  4 06:15:17 vps691689 sshd[19437]: Failed password for root from 111.231.54.33 port 36766 ssh2
...
2019-11-04 13:24:07
54.36.214.76 attackspam
2019-11-04T05:56:13.333989mail01 postfix/smtpd[20146]: warning: ip76.ip-54-36-214.eu[54.36.214.76]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-11-04T05:56:45.482109mail01 postfix/smtpd[20146]: warning: ip76.ip-54-36-214.eu[54.36.214.76]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-11-04T05:57:30.381356mail01 postfix/smtpd[20146]: warning: ip76.ip-54-36-214.eu[54.36.214.76]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-11-04T05:57:30.381794mail01 postfix/smtpd[5536]: warning: ip76.ip-54-36-214.eu[54.36.214.76]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
2019-11-04 13:01:50
173.249.8.156 attackspam
173.249.8.156 - - \[03/Nov/2019:23:29:05 +0100\] "GET http://chekfast.zennolab.com/proxy.php HTTP/1.1" 404 47 "RefererString" "Mozilla/5.0 \(Windows NT 10.0\; WOW64\; rv:45.0\) Gecko/20100101 Firefox/45.0"
...
2019-11-04 08:00:58
171.110.123.41 attackspambots
Nov  4 07:12:35 sauna sshd[216626]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.110.123.41
Nov  4 07:12:37 sauna sshd[216626]: Failed password for invalid user ryder123 from 171.110.123.41 port 37232 ssh2
...
2019-11-04 13:19:04
52.58.75.133 attackbotsspam
11/04/2019-00:11:27.213473 52.58.75.133 Protocol: 6 ET SCAN Potential SSH Scan
2019-11-04 13:13:00
106.241.16.105 attackspam
Nov  3 19:11:06 eddieflores sshd\[25504\]: Invalid user luciana from 106.241.16.105
Nov  3 19:11:06 eddieflores sshd\[25504\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.241.16.105
Nov  3 19:11:08 eddieflores sshd\[25504\]: Failed password for invalid user luciana from 106.241.16.105 port 56236 ssh2
Nov  3 19:15:18 eddieflores sshd\[25851\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.241.16.105  user=root
Nov  3 19:15:20 eddieflores sshd\[25851\]: Failed password for root from 106.241.16.105 port 51529 ssh2
2019-11-04 13:24:50
65.75.93.36 attack
Nov  4 00:21:45 TORMINT sshd\[20092\]: Invalid user ganja from 65.75.93.36
Nov  4 00:21:45 TORMINT sshd\[20092\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=65.75.93.36
Nov  4 00:21:47 TORMINT sshd\[20092\]: Failed password for invalid user ganja from 65.75.93.36 port 47847 ssh2
...
2019-11-04 13:23:01
187.187.200.144 attackbots
LGS,WP GET /wp-login.php
2019-11-04 08:06:06

Recently Reported IPs

104.21.57.72 104.18.31.144 104.21.57.229 104.21.57.76
104.21.57.90 104.21.58.163 104.21.58.186 104.21.58.135
104.21.58.144 171.157.233.132 104.21.58.138 104.21.58.106
104.18.31.148 104.21.58.21 104.21.58.100 104.21.58.154
104.21.58.196 104.21.58.219 104.21.58.241 104.21.58.4