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 <<>> 104.21.16.204
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 23309
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.204.			IN	A

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

;; Query time: 14 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:12:33 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 204.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 204.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
161.10.238.226 attackbots
Dec 26 21:18:07 server sshd\[15069\]: Failed password for invalid user support from 161.10.238.226 port 42246 ssh2
Dec 27 15:31:48 server sshd\[18913\]: Invalid user koiste from 161.10.238.226
Dec 27 15:31:48 server sshd\[18913\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=161.10.238.226 
Dec 27 15:31:50 server sshd\[18913\]: Failed password for invalid user koiste from 161.10.238.226 port 57078 ssh2
Dec 27 15:45:43 server sshd\[21701\]: Invalid user wallkamm from 161.10.238.226
...
2019-12-27 21:34:57
54.38.18.211 attack
Invalid user temp from 54.38.18.211 port 56446
2019-12-27 21:22:36
59.178.198.253 attack
Unauthorised access (Dec 27) SRC=59.178.198.253 LEN=48 TTL=118 ID=29008 DF TCP DPT=445 WINDOW=8192 SYN
2019-12-27 21:37:00
35.185.239.108 attack
Invalid user gdm from 35.185.239.108 port 52344
2019-12-27 21:46:12
106.12.175.179 attack
SSH/22 MH Probe, BF, Hack -
2019-12-27 21:41:07
49.88.112.55 attack
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.55  user=root
Failed password for root from 49.88.112.55 port 58016 ssh2
Failed password for root from 49.88.112.55 port 58016 ssh2
Failed password for root from 49.88.112.55 port 58016 ssh2
Failed password for root from 49.88.112.55 port 58016 ssh2
2019-12-27 21:14:01
58.87.67.142 attackspam
Dec 27 08:23:16 vpn01 sshd[10920]: Failed password for root from 58.87.67.142 port 35740 ssh2
Dec 27 08:27:03 vpn01 sshd[11045]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.87.67.142
...
2019-12-27 21:08:28
66.70.189.209 attackspam
Automatic report - Banned IP Access
2019-12-27 21:39:49
163.172.164.135 attackbots
163.172.164.135 - - [27/Dec/2019:07:20:49 +0100] "GET /wp-login.php HTTP/1.1" 200 1901 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
163.172.164.135 - - [27/Dec/2019:07:20:49 +0100] "POST /wp-login.php HTTP/1.1" 200 2298 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
163.172.164.135 - - [27/Dec/2019:07:20:49 +0100] "GET /wp-login.php HTTP/1.1" 200 1901 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
163.172.164.135 - - [27/Dec/2019:07:20:49 +0100] "POST /wp-login.php HTTP/1.1" 200 2272 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
163.172.164.135 - - [27/Dec/2019:07:20:49 +0100] "GET /wp-login.php HTTP/1.1" 200 1901 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
163.172.164.135 - - [27/Dec/2019:07:20:50 +0100] "POST /wp-login.php HTTP/1.1" 200 2273 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
.
2019-12-27 21:33:09
116.52.128.116 attackbotsspam
Port 1433 Scan
2019-12-27 21:44:38
168.227.99.10 attackbots
$f2bV_matches
2019-12-27 21:32:54
95.139.150.86 attack
Unauthorized connection attempt detected from IP address 95.139.150.86 to port 80
2019-12-27 21:13:13
51.254.29.54 attack
scan z
2019-12-27 21:07:56
138.197.25.187 attack
Dec 27 07:21:00 nextcloud sshd\[12102\]: Invalid user matheny from 138.197.25.187
Dec 27 07:21:00 nextcloud sshd\[12102\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.25.187
Dec 27 07:21:02 nextcloud sshd\[12102\]: Failed password for invalid user matheny from 138.197.25.187 port 34198 ssh2
...
2019-12-27 21:26:35
106.12.92.65 attack
2019-12-27T13:32:59.440333abusebot-7.cloudsearch.cf sshd[21012]: Invalid user host from 106.12.92.65 port 57050
2019-12-27T13:32:59.444307abusebot-7.cloudsearch.cf sshd[21012]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.92.65
2019-12-27T13:32:59.440333abusebot-7.cloudsearch.cf sshd[21012]: Invalid user host from 106.12.92.65 port 57050
2019-12-27T13:33:01.519270abusebot-7.cloudsearch.cf sshd[21012]: Failed password for invalid user host from 106.12.92.65 port 57050 ssh2
2019-12-27T13:41:47.580350abusebot-7.cloudsearch.cf sshd[21058]: Invalid user cbaintelkam from 106.12.92.65 port 38364
2019-12-27T13:41:47.585571abusebot-7.cloudsearch.cf sshd[21058]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.92.65
2019-12-27T13:41:47.580350abusebot-7.cloudsearch.cf sshd[21058]: Invalid user cbaintelkam from 106.12.92.65 port 38364
2019-12-27T13:41:49.479683abusebot-7.cloudsearch.cf sshd[21058]: Fail
...
2019-12-27 21:47:16

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