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 <<>> 104.21.20.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 38994
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.20.4.			IN	A

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

;; Query time: 127 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:15:27 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 4.20.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 4.20.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
46.101.232.76 attackbots
Attempted connection to port 22.
2020-04-18 20:01:18
146.88.240.4 attackspam
04/18/2020-06:10:42.535041 146.88.240.4 Protocol: 17 ET DROP Dshield Block Listed Source group 1
2020-04-18 19:43:13
186.147.129.110 attackbotsspam
Apr 18 12:56:41 vps sshd[79344]: Failed password for root from 186.147.129.110 port 60194 ssh2
Apr 18 13:00:19 vps sshd[100201]: Invalid user vr from 186.147.129.110 port 60106
Apr 18 13:00:19 vps sshd[100201]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.147.129.110
Apr 18 13:00:21 vps sshd[100201]: Failed password for invalid user vr from 186.147.129.110 port 60106 ssh2
Apr 18 13:04:07 vps sshd[118599]: Invalid user tomcat from 186.147.129.110 port 60010
...
2020-04-18 19:28:19
31.124.43.68 attackspam
firewall-block, port(s): 23/tcp
2020-04-18 20:02:16
92.222.66.234 attackspam
Apr 18 11:38:26 mail sshd\[17846\]: Invalid user vn from 92.222.66.234
Apr 18 11:38:26 mail sshd\[17846\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.66.234
Apr 18 11:38:28 mail sshd\[17846\]: Failed password for invalid user vn from 92.222.66.234 port 52348 ssh2
...
2020-04-18 19:41:00
104.251.231.80 attackbotsspam
Apr 18 16:47:33 gw1 sshd[28343]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.251.231.80
Apr 18 16:47:36 gw1 sshd[28343]: Failed password for invalid user hadoopuser from 104.251.231.80 port 44416 ssh2
...
2020-04-18 20:03:42
122.238.28.228 attackspambots
TCP Port Scanning
2020-04-18 19:43:33
196.11.157.15 attack
Port probing on unauthorized port 8089
2020-04-18 19:22:12
111.229.205.95 attackbotsspam
$f2bV_matches
2020-04-18 19:53:30
144.217.12.194 attackbotsspam
Invalid user winer from 144.217.12.194 port 51548
2020-04-18 19:47:32
106.54.242.239 attackspambots
2020-04-18T05:01:41.181153abusebot-3.cloudsearch.cf sshd[14839]: Invalid user an from 106.54.242.239 port 47808
2020-04-18T05:01:41.186658abusebot-3.cloudsearch.cf sshd[14839]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.242.239
2020-04-18T05:01:41.181153abusebot-3.cloudsearch.cf sshd[14839]: Invalid user an from 106.54.242.239 port 47808
2020-04-18T05:01:43.690068abusebot-3.cloudsearch.cf sshd[14839]: Failed password for invalid user an from 106.54.242.239 port 47808 ssh2
2020-04-18T05:06:41.027027abusebot-3.cloudsearch.cf sshd[15191]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.242.239  user=root
2020-04-18T05:06:43.244303abusebot-3.cloudsearch.cf sshd[15191]: Failed password for root from 106.54.242.239 port 47650 ssh2
2020-04-18T05:11:38.899287abusebot-3.cloudsearch.cf sshd[15436]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.242.23
...
2020-04-18 19:31:04
120.92.35.127 attack
Apr 18 08:47:17 gw1 sshd[13022]: Failed password for root from 120.92.35.127 port 56002 ssh2
Apr 18 08:49:29 gw1 sshd[13101]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.92.35.127
...
2020-04-18 19:46:21
106.13.48.241 attack
Apr 18 10:57:07 localhost sshd[43719]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.48.241  user=root
Apr 18 10:57:09 localhost sshd[43719]: Failed password for root from 106.13.48.241 port 48730 ssh2
Apr 18 11:01:15 localhost sshd[44056]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.48.241  user=root
Apr 18 11:01:17 localhost sshd[44056]: Failed password for root from 106.13.48.241 port 42762 ssh2
Apr 18 11:05:01 localhost sshd[44369]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.48.241  user=root
Apr 18 11:05:03 localhost sshd[44369]: Failed password for root from 106.13.48.241 port 36794 ssh2
...
2020-04-18 19:44:51
77.232.100.232 attackbots
Lines containing failures of 77.232.100.232
Apr 17 01:19:37 server-name sshd[13973]: Invalid user zh from 77.232.100.232 port 33196
Apr 17 01:19:37 server-name sshd[13973]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=77.232.100.232 
Apr 17 01:19:39 server-name sshd[13973]: Failed password for invalid user zh from 77.232.100.232 port 33196 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=77.232.100.232
2020-04-18 19:29:36
45.227.255.190 attack
TCP Port Scanning
2020-04-18 19:58:28

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