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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.40.20
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 17625
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.40.20.			IN	A

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

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:28:39 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 20.40.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 20.40.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
117.69.233.247 attack
(sshd) Failed SSH login from 117.69.233.247 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 25 10:11:09 server2 sshd[1114]: Invalid user hue from 117.69.233.247 port 51326
Sep 25 10:11:11 server2 sshd[1114]: Failed password for invalid user hue from 117.69.233.247 port 51326 ssh2
Sep 25 10:23:26 server2 sshd[4736]: Invalid user ftpd from 117.69.233.247 port 43688
Sep 25 10:23:28 server2 sshd[4736]: Failed password for invalid user ftpd from 117.69.233.247 port 43688 ssh2
Sep 25 10:26:31 server2 sshd[5204]: Invalid user asdf from 117.69.233.247 port 49654
2020-09-25 18:36:49
74.120.14.64 attack
ET CINS Active Threat Intelligence Poor Reputation IP group 63 - port: 8069 proto: tcp cat: Misc Attackbytes: 60
2020-09-25 18:25:31
54.36.190.245 attackspambots
Invalid user upgrade from 54.36.190.245 port 45232
2020-09-25 18:12:07
103.199.146.126 attack
20/9/24@16:36:57: FAIL: Alarm-Intrusion address from=103.199.146.126
...
2020-09-25 18:18:34
195.143.229.209 attack
lfd: (smtpauth) Failed SMTP AUTH login from 195.143.229.209 (-): 5 in the last 3600 secs - Sat Aug 25 13:30:51 2018
2020-09-25 18:05:08
182.61.167.24 attackspambots
Sep 25 12:13:57 OPSO sshd\[20473\]: Invalid user pierre from 182.61.167.24 port 34886
Sep 25 12:13:57 OPSO sshd\[20473\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.167.24
Sep 25 12:13:59 OPSO sshd\[20473\]: Failed password for invalid user pierre from 182.61.167.24 port 34886 ssh2
Sep 25 12:16:36 OPSO sshd\[21242\]: Invalid user test from 182.61.167.24 port 47632
Sep 25 12:16:36 OPSO sshd\[21242\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.167.24
2020-09-25 18:17:56
182.61.179.96 attackbotsspam
Honeypot attack, port: 445, PTR: PTR record not found
2020-09-25 18:02:54
118.250.97.93 attackspam
Brute force blocker - service: proftpd1 - aantal: 97 - Sat Aug 25 13:05:17 2018
2020-09-25 18:07:28
194.165.99.231 attackbotsspam
Time:     Thu Sep 24 23:39:06 2020 +0000
IP:       194.165.99.231 (SI/Slovenia/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 24 23:33:25 activeserver sshd[8018]: Invalid user smb from 194.165.99.231 port 39052
Sep 24 23:33:28 activeserver sshd[8018]: Failed password for invalid user smb from 194.165.99.231 port 39052 ssh2
Sep 24 23:37:40 activeserver sshd[18940]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=194.165.99.231  user=root
Sep 24 23:37:42 activeserver sshd[18940]: Failed password for root from 194.165.99.231 port 55294 ssh2
Sep 24 23:39:04 activeserver sshd[24362]: Invalid user gera from 194.165.99.231 port 60714
2020-09-25 18:01:21
86.34.157.3 attack
Dovecot Invalid User Login Attempt.
2020-09-25 18:16:07
40.117.41.114 attackspambots
Invalid user invensity from 40.117.41.114 port 5622
2020-09-25 18:40:39
49.233.108.195 attackbots
(sshd) Failed SSH login from 49.233.108.195 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 25 11:18:04 server sshd[11871]: Invalid user user from 49.233.108.195
Sep 25 11:18:04 server sshd[11871]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.108.195 
Sep 25 11:18:05 server sshd[11871]: Failed password for invalid user user from 49.233.108.195 port 49718 ssh2
Sep 25 11:23:47 server sshd[12796]: Invalid user ec2-user from 49.233.108.195
Sep 25 11:23:47 server sshd[12796]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.108.195
2020-09-25 18:28:27
115.207.97.2 attackspam
lfd: (smtpauth) Failed SMTP AUTH login from 115.207.97.2 (-): 5 in the last 3600 secs - Fri Aug 24 21:32:20 2018
2020-09-25 18:38:18
104.248.143.177 attackspam
2020-09-25T10:02:55.944819server.espacesoutien.com sshd[4658]: Invalid user nexus from 104.248.143.177 port 36030
2020-09-25T10:02:55.960324server.espacesoutien.com sshd[4658]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.143.177
2020-09-25T10:02:55.944819server.espacesoutien.com sshd[4658]: Invalid user nexus from 104.248.143.177 port 36030
2020-09-25T10:02:58.473182server.espacesoutien.com sshd[4658]: Failed password for invalid user nexus from 104.248.143.177 port 36030 ssh2
...
2020-09-25 18:41:54
123.206.118.47 attack
2020-09-25T06:39:01.470893galaxy.wi.uni-potsdam.de sshd[20710]: Invalid user admin from 123.206.118.47 port 37370
2020-09-25T06:39:01.472825galaxy.wi.uni-potsdam.de sshd[20710]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.206.118.47
2020-09-25T06:39:01.470893galaxy.wi.uni-potsdam.de sshd[20710]: Invalid user admin from 123.206.118.47 port 37370
2020-09-25T06:39:04.038046galaxy.wi.uni-potsdam.de sshd[20710]: Failed password for invalid user admin from 123.206.118.47 port 37370 ssh2
2020-09-25T06:42:03.712918galaxy.wi.uni-potsdam.de sshd[21107]: Invalid user hadoop from 123.206.118.47 port 43824
2020-09-25T06:42:03.714851galaxy.wi.uni-potsdam.de sshd[21107]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.206.118.47
2020-09-25T06:42:03.712918galaxy.wi.uni-potsdam.de sshd[21107]: Invalid user hadoop from 123.206.118.47 port 43824
2020-09-25T06:42:05.597728galaxy.wi.uni-potsdam.de sshd[21107]: Faile
...
2020-09-25 18:24:57

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