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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.17.21.40
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16556
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.17.21.40.			IN	A

;; AUTHORITY SECTION:
.			231	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022052100 1800 900 604800 86400

;; Query time: 99 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat May 21 18:07:24 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 40.21.17.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 40.21.17.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
154.117.154.86 attackspam
2020-06-06T23:48:53.429441mail.thespaminator.com sshd[5279]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=154.117.154.86  user=root
2020-06-06T23:48:55.374849mail.thespaminator.com sshd[5279]: Failed password for root from 154.117.154.86 port 60751 ssh2
...
2020-06-07 18:17:30
49.232.145.175 attack
Unauthorized SSH login attempts
2020-06-07 18:45:21
68.183.22.85 attack
Jun  7 10:18:07 roki-contabo sshd\[32349\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.22.85  user=root
Jun  7 10:18:09 roki-contabo sshd\[32349\]: Failed password for root from 68.183.22.85 port 60312 ssh2
Jun  7 10:25:10 roki-contabo sshd\[32458\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.22.85  user=root
Jun  7 10:25:11 roki-contabo sshd\[32458\]: Failed password for root from 68.183.22.85 port 46988 ssh2
Jun  7 10:28:16 roki-contabo sshd\[32624\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.22.85  user=root
...
2020-06-07 18:45:39
110.12.230.163 attackbotsspam
Automatic report - Port Scan Attack
2020-06-07 18:37:30
201.163.180.183 attackbotsspam
Jun  7 02:42:19 lanister sshd[25650]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=201.163.180.183  user=root
Jun  7 02:42:22 lanister sshd[25650]: Failed password for root from 201.163.180.183 port 37705 ssh2
Jun  7 02:45:33 lanister sshd[25712]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=201.163.180.183  user=root
Jun  7 02:45:35 lanister sshd[25712]: Failed password for root from 201.163.180.183 port 34678 ssh2
2020-06-07 18:40:36
206.189.3.176 attack
"fail2ban match"
2020-06-07 18:46:25
195.158.8.206 attack
Jun  7 09:07:54 ws26vmsma01 sshd[163458]: Failed password for root from 195.158.8.206 port 38678 ssh2
...
2020-06-07 18:30:55
24.46.55.148 attackspambots
Hits on port : 5555
2020-06-07 18:15:06
209.141.53.10 attackbots
Jun  1 10:45:08 mxgate1 sshd[20407]: Connection closed by 209.141.53.10 port 56126 [preauth]
Jun  1 10:45:12 mxgate1 sshd[20409]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.141.53.10  user=sshd
Jun  1 10:45:14 mxgate1 sshd[20409]: Failed password for sshd from 209.141.53.10 port 56380 ssh2
Jun  1 10:45:15 mxgate1 sshd[20409]: Failed password for sshd from 209.141.53.10 port 56380 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=209.141.53.10
2020-06-07 18:35:46
112.85.42.232 attackbots
W 5701,/var/log/auth.log,-,-
2020-06-07 18:43:36
111.199.224.65 attackbots
Lines containing failures of 111.199.224.65
Jun  1 10:41:32 linuxrulz sshd[4497]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.199.224.65  user=r.r
Jun  1 10:41:35 linuxrulz sshd[4497]: Failed password for r.r from 111.199.224.65 port 17220 ssh2
Jun  1 10:41:36 linuxrulz sshd[4497]: Received disconnect from 111.199.224.65 port 17220:11: Bye Bye [preauth]
Jun  1 10:41:36 linuxrulz sshd[4497]: Disconnected from authenticating user r.r 111.199.224.65 port 17220 [preauth]
Jun  1 10:44:48 linuxrulz sshd[4511]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.199.224.65  user=r.r


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=111.199.224.65
2020-06-07 18:39:13
87.139.230.5 attackspambots
Jun  7 11:10:45 melroy-server sshd[19076]: Failed password for root from 87.139.230.5 port 33630 ssh2
...
2020-06-07 18:27:43
52.151.55.184 attackbotsspam
52.151.55.184 - - \[07/Jun/2020:09:49:43 +0200\] "POST //xmlrpc.php HTTP/1.0" 200 825 "-" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
52.151.55.184 - - \[07/Jun/2020:09:49:44 +0200\] "POST //xmlrpc.php HTTP/1.0" 200 825 "-" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
52.151.55.184 - - \[07/Jun/2020:09:49:44 +0200\] "POST //xmlrpc.php HTTP/1.0" 200 825 "-" "Mozilla/5.0 \(Windows NT 10.0\; Win64\; x64\) AppleWebKit/537.36 \(KHTML, like Gecko\) Chrome/79.0 Safari/537.36"
2020-06-07 18:40:03
121.8.161.74 attackbotsspam
Jun  7 12:04:35 ns37 sshd[24983]: Failed password for root from 121.8.161.74 port 60540 ssh2
Jun  7 12:08:27 ns37 sshd[25201]: Failed password for root from 121.8.161.74 port 47322 ssh2
2020-06-07 18:23:48
222.186.52.39 attackbotsspam
07.06.2020 10:15:36 SSH access blocked by firewall
2020-06-07 18:20:50

Recently Reported IPs

104.17.209.9 104.17.211.159 104.17.215.87 104.17.22.73
104.17.221.31 104.17.221.61 104.17.224.39 104.17.225.16
104.17.225.39 104.17.225.63 104.17.231.98 104.17.238.70
104.17.239.70 104.17.245.8 104.17.246.59 104.17.250.34
104.17.251.34 104.17.251.44 104.17.254.34 104.17.26.57