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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.56.243
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 45343
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.56.243.			IN	A

;; AUTHORITY SECTION:
.			565	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:13:49 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 243.56.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 243.56.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
103.140.83.18 attack
" "
2020-09-09 00:40:17
105.112.101.188 attack
Icarus honeypot on github
2020-09-09 00:51:32
212.154.85.215 attackbotsspam
20/9/7@12:50:59: FAIL: Alarm-Intrusion address from=212.154.85.215
...
2020-09-09 00:14:31
162.243.130.79 attackbotsspam
Port scan denied
2020-09-09 00:33:57
116.118.238.18 attackspambots
Brute Force
2020-09-09 00:52:19
5.79.247.241 attackbots
Sep  7 18:50:44 sxvn sshd[149231]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.79.247.241
2020-09-09 00:35:09
1.220.68.196 attackspam
DATE:2020-09-07 18:50:52, IP:1.220.68.196, PORT:telnet Telnet brute force auth on honeypot server (honey-neo-dc)
2020-09-09 00:25:16
112.120.156.177 attack
Scanned 3 times in the last 24 hours on port 22
2020-09-09 00:18:47
222.186.169.194 attackbots
Sep  8 18:43:10 vps647732 sshd[24732]: Failed password for root from 222.186.169.194 port 53374 ssh2
Sep  8 18:43:25 vps647732 sshd[24732]: error: maximum authentication attempts exceeded for root from 222.186.169.194 port 53374 ssh2 [preauth]
...
2020-09-09 00:43:35
192.241.184.22 attackspam
Sep  8 16:03:50  sshd\[16745\]: User root from 192.241.184.22 not allowed because not listed in AllowUsersSep  8 16:03:52  sshd\[16745\]: Failed password for invalid user root from 192.241.184.22 port 33810 ssh2
...
2020-09-09 00:08:05
51.210.97.29 attack
joshuajohannes.de 51.210.97.29 [08/Sep/2020:08:23:39 +0200] "POST /wp-login.php HTTP/1.1" 200 6625 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
joshuajohannes.de 51.210.97.29 [08/Sep/2020:08:23:40 +0200] "POST /wp-login.php HTTP/1.1" 200 6590 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2020-09-09 00:45:05
178.34.190.34 attackbotsspam
Repeated brute force against a port
2020-09-09 00:40:58
182.61.49.64 attack
$f2bV_matches
2020-09-09 00:31:25
111.92.73.156 attack
Honeypot attack, port: 445, PTR: 156.73.92.111.asianet.co.in.
2020-09-09 00:09:31
167.114.115.33 attackspam
2020-09-08T14:21:27+0200 Failed SSH Authentication/Brute Force Attack.(Server 2)
2020-09-09 00:32:06

Recently Reported IPs

104.21.56.236 104.21.56.240 104.21.56.246 13.225.71.4
104.21.56.249 104.21.56.26 104.21.56.251 104.21.56.36
104.21.56.55 104.21.56.41 104.21.56.51 104.21.56.52
104.21.56.253 104.21.56.64 104.21.56.78 104.21.56.67
104.21.56.73 13.225.71.40 104.21.56.81 104.21.57.122