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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 21.57.104.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12649
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.57.104.4.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025013001 1800 900 604800 86400

;; Query time: 38 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Jan 31 11:05:51 CST 2025
;; MSG SIZE  rcvd: 104
Host info
Host 4.104.57.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 4.104.57.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
218.29.83.34 attack
Nov 26 02:38:41 cumulus sshd[2161]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.29.83.34  user=r.r
Nov 26 02:38:43 cumulus sshd[2161]: Failed password for r.r from 218.29.83.34 port 37930 ssh2
Nov 26 02:38:44 cumulus sshd[2161]: Received disconnect from 218.29.83.34 port 37930:11: Bye Bye [preauth]
Nov 26 02:38:44 cumulus sshd[2161]: Disconnected from 218.29.83.34 port 37930 [preauth]
Nov 26 02:50:57 cumulus sshd[2661]: Invalid user hung from 218.29.83.34 port 44094
Nov 26 02:50:57 cumulus sshd[2661]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.29.83.34
Nov 26 02:50:59 cumulus sshd[2661]: Failed password for invalid user hung from 218.29.83.34 port 44094 ssh2
Nov 26 02:50:59 cumulus sshd[2661]: Received disconnect from 218.29.83.34 port 44094:11: Bye Bye [preauth]
Nov 26 02:50:59 cumulus sshd[2661]: Disconnected from 218.29.83.34 port 44094 [preauth]
Nov 26 02:57:06 cumulus s........
-------------------------------
2019-11-29 01:49:00
188.246.229.21 attackspam
$f2bV_matches
2019-11-29 02:05:48
129.213.117.53 attackspam
Nov 28 12:34:16 linuxvps sshd\[4043\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.213.117.53  user=root
Nov 28 12:34:18 linuxvps sshd\[4043\]: Failed password for root from 129.213.117.53 port 53079 ssh2
Nov 28 12:40:25 linuxvps sshd\[7508\]: Invalid user server from 129.213.117.53
Nov 28 12:40:25 linuxvps sshd\[7508\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.213.117.53
Nov 28 12:40:27 linuxvps sshd\[7508\]: Failed password for invalid user server from 129.213.117.53 port 15392 ssh2
2019-11-29 02:14:15
201.187.110.98 attack
Unauthorised access (Nov 28) SRC=201.187.110.98 LEN=52 TTL=105 ID=5968 DF TCP DPT=445 WINDOW=8192 SYN 
Unauthorised access (Nov 28) SRC=201.187.110.98 LEN=52 TTL=105 ID=18920 DF TCP DPT=445 WINDOW=8192 SYN
2019-11-29 02:12:23
187.103.81.28 attack
Automatic report - Port Scan Attack
2019-11-29 01:38:55
138.0.113.208 attack
Unauthorized access or intrusion attempt detected from Bifur banned IP
2019-11-29 01:57:56
78.185.42.237 attack
Automatic report - Port Scan Attack
2019-11-29 01:58:34
218.76.140.201 attack
Nov 28 01:02:08 mail sshd[8723]: Invalid user yxl from 218.76.140.201 port 29090
Nov 28 01:02:08 mail sshd[8723]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.76.140.201
Nov 28 01:02:09 mail sshd[8723]: Failed password for invalid user yxl from 218.76.140.201 port 29090 ssh2
Nov 28 01:05:35 mail sshd[8741]: Invalid user tyson from 218.76.140.201 port 51912
Nov 28 01:05:35 mail sshd[8741]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.76.140.201
Nov 28 01:05:37 mail sshd[8741]: Failed password for invalid user tyson from 218.76.140.201 port 51912 ssh2
Nov 28 01:09:04 mail sshd[8818]: Invalid user walter from 218.76.140.201 port 48736
Nov 28 01:09:04 mail sshd[8818]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.76.140.201
Nov 28 01:09:06 mail sshd[8818]: Failed password for invalid user walter from 218.76.140.201 port 48736 ssh2
Nov 28........
------------------------------
2019-11-29 01:52:38
8.208.28.6 attackbots
Nov 28 22:53:18 webhost01 sshd[3805]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=8.208.28.6
Nov 28 22:53:20 webhost01 sshd[3805]: Failed password for invalid user pan from 8.208.28.6 port 60426 ssh2
...
2019-11-29 01:38:30
14.187.212.49 attackspam
failed_logins
2019-11-29 02:10:16
36.71.77.12 attackbots
(sshd) Failed SSH login from 36.71.77.12 (ID/Indonesia/East Java/Malang/-/[AS7713 PT Telekomunikasi Indonesia]): 1 in the last 3600 secs
2019-11-29 02:08:38
163.172.207.104 attack
\[2019-11-28 12:34:15\] SECURITY\[2765\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-28T12:34:15.575-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="9071011972592277524",SessionID="0x7f26c427b828",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/163.172.207.104/65263",ACLName="no_extension_match"
\[2019-11-28 12:38:04\] SECURITY\[2765\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-28T12:38:04.793-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="9072011972592277524",SessionID="0x7f26c427b828",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/163.172.207.104/57098",ACLName="no_extension_match"
\[2019-11-28 12:41:56\] SECURITY\[2765\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-11-28T12:41:56.301-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="9073011972592277524",SessionID="0x7f26c445f668",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/163.172.207.104/6466
2019-11-29 01:54:45
80.117.116.194 attack
Telnet/23 MH Probe, BF, Hack -
2019-11-29 02:12:55
140.213.48.136 attack
Unauthorised access (Nov 28) SRC=140.213.48.136 LEN=52 TTL=114 ID=25474 DF TCP DPT=445 WINDOW=63443 SYN
2019-11-29 01:52:12
151.80.145.8 attackspam
Nov 25 00:04:16 finn sshd[21815]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.80.145.8  user=r.r
Nov 25 00:04:18 finn sshd[21815]: Failed password for r.r from 151.80.145.8 port 43766 ssh2
Nov 25 00:04:18 finn sshd[21815]: Received disconnect from 151.80.145.8 port 43766:11: Bye Bye [preauth]
Nov 25 00:04:18 finn sshd[21815]: Disconnected from 151.80.145.8 port 43766 [preauth]
Nov 25 00:30:52 finn sshd[28095]: Invalid user wosser from 151.80.145.8 port 47156
Nov 25 00:30:52 finn sshd[28095]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=151.80.145.8
Nov 25 00:30:54 finn sshd[28095]: Failed password for invalid user wosser from 151.80.145.8 port 47156 ssh2
Nov 25 00:30:54 finn sshd[28095]: Received disconnect from 151.80.145.8 port 47156:11: Bye Bye [preauth]
Nov 25 00:30:54 finn sshd[28095]: Disconnected from 151.80.145.8 port 47156 [preauth]
Nov 25 00:37:03 finn sshd[29245]: Inval........
-------------------------------
2019-11-29 02:05:09

Recently Reported IPs

27.194.102.135 37.169.131.210 100.77.174.222 96.106.184.185
63.204.52.187 206.10.202.195 216.132.253.157 115.9.37.117
197.239.45.119 76.5.59.211 19.73.202.214 171.18.239.32
202.94.3.82 187.192.240.28 154.123.10.35 26.212.118.180
55.166.16.224 198.81.73.161 101.14.31.232 207.17.187.24