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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.12.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 27003
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.12.138.			IN	A

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

;; Query time: 90 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:10:10 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.12.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.12.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
104.237.208.115 attack
Jul 23 18:29:31 km20725 sshd[22967]: reveeclipse mapping checking getaddrinfo for 115-208-237-104.reveeclipse-dns [104.237.208.115] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 23 18:29:31 km20725 sshd[22967]: Invalid user gpadmin from 104.237.208.115
Jul 23 18:29:31 km20725 sshd[22967]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.237.208.115
Jul 23 18:29:32 km20725 sshd[22967]: Failed password for invalid user gpadmin from 104.237.208.115 port 40200 ssh2
Jul 23 18:29:33 km20725 sshd[22967]: Received disconnect from 104.237.208.115: 11: Bye Bye [preauth]
Jul 23 18:37:00 km20725 sshd[23319]: reveeclipse mapping checking getaddrinfo for 115-208-237-104.reveeclipse-dns [104.237.208.115] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 23 18:37:00 km20725 sshd[23319]: Invalid user carolina from 104.237.208.115
Jul 23 18:37:00 km20725 sshd[23319]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.237........
-------------------------------
2019-07-24 08:29:14
5.9.40.211 attackbots
Jul 23 19:47:28 aat-srv002 sshd[394]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.9.40.211
Jul 23 19:47:31 aat-srv002 sshd[394]: Failed password for invalid user thanks from 5.9.40.211 port 53990 ssh2
Jul 23 19:51:50 aat-srv002 sshd[541]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.9.40.211
Jul 23 19:51:53 aat-srv002 sshd[541]: Failed password for invalid user karen from 5.9.40.211 port 50376 ssh2
...
2019-07-24 08:54:01
103.10.169.144 attackspam
WordPress brute force
2019-07-24 08:53:28
37.59.46.123 attack
www.geburtshaus-fulda.de 37.59.46.123 \[24/Jul/2019:01:25:18 +0200\] "POST /wp-login.php HTTP/1.1" 200 5786 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
www.geburtshaus-fulda.de 37.59.46.123 \[24/Jul/2019:01:25:18 +0200\] "POST /wp-login.php HTTP/1.1" 200 5790 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2019-07-24 08:37:36
148.66.147.23 attack
SQL injection:/index.php?menu_selected=144'&sub_menu_selected=1024'&language=FR'&country=NEPAL'&numero_page=3'"
2019-07-24 08:27:24
109.195.197.173 attack
WordPress brute force
2019-07-24 08:52:43
119.18.195.197 attackspambots
Excessive Port-Scanning
2019-07-24 08:54:40
201.131.180.215 attackspambots
failed_logins
2019-07-24 09:09:33
81.95.135.10 attackbots
[portscan] Port scan
2019-07-24 09:07:58
82.213.250.93 attack
Invalid user julius from 82.213.250.93 port 53456
2019-07-24 08:59:06
167.99.32.241 attackbots
Automatic report - Banned IP Access
2019-07-24 08:43:39
210.16.188.124 attackbots
WordPress brute force
2019-07-24 08:38:37
185.234.218.36 attackspam
WordPress brute force
2019-07-24 08:42:47
159.253.37.114 attackbots
WordPress wp-login brute force :: 159.253.37.114 0.064 BYPASS [24/Jul/2019:09:32:40  1000] [censored_4] "POST /wp-login.php HTTP/1.1" 200 4214 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2019-07-24 08:45:41
192.241.220.228 attackspam
Jul 24 01:44:02 nextcloud sshd\[1548\]: Invalid user minecraft from 192.241.220.228
Jul 24 01:44:02 nextcloud sshd\[1548\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.241.220.228
Jul 24 01:44:04 nextcloud sshd\[1548\]: Failed password for invalid user minecraft from 192.241.220.228 port 40438 ssh2
...
2019-07-24 08:25:28

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