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 <<>> 104.21.53.103
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 38787
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.53.103.			IN	A

;; AUTHORITY SECTION:
.			329	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 66 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:34:32 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 103.53.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 103.53.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
146.185.162.244 attackspambots
Nov 26 04:20:57 firewall sshd[409]: Invalid user marvyn from 146.185.162.244
Nov 26 04:21:00 firewall sshd[409]: Failed password for invalid user marvyn from 146.185.162.244 port 52870 ssh2
Nov 26 04:28:59 firewall sshd[565]: Invalid user ralina from 146.185.162.244
...
2019-11-26 21:38:29
101.51.1.63 attackspambots
firewall-block, port(s): 9000/tcp
2019-11-26 21:26:46
95.24.202.39 attackspam
Brute-force attempt banned
2019-11-26 21:31:50
207.154.243.255 attackspambots
Nov 26 09:07:15 server sshd\[20175\]: Invalid user testguy from 207.154.243.255
Nov 26 09:07:15 server sshd\[20175\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=207.154.243.255 
Nov 26 09:07:18 server sshd\[20175\]: Failed password for invalid user testguy from 207.154.243.255 port 38654 ssh2
Nov 26 09:20:16 server sshd\[24264\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=207.154.243.255  user=root
Nov 26 09:20:18 server sshd\[24264\]: Failed password for root from 207.154.243.255 port 36384 ssh2
...
2019-11-26 21:18:00
182.61.44.136 attack
Nov 26 09:25:29 lnxweb62 sshd[14961]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.44.136
2019-11-26 21:52:03
51.77.200.243 attack
Nov 26 07:55:49 ws22vmsma01 sshd[75392]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.200.243
Nov 26 07:55:51 ws22vmsma01 sshd[75392]: Failed password for invalid user ident from 51.77.200.243 port 36318 ssh2
...
2019-11-26 21:28:08
106.52.217.229 attackspambots
$f2bV_matches
2019-11-26 21:31:17
107.173.140.173 attackbotsspam
2019-11-26 07:25:05,926 fail2ban.actions        \[14488\]: NOTICE  \[sshd\] Ban 107.173.140.173
2019-11-26 08:06:29,291 fail2ban.actions        \[14488\]: NOTICE  \[sshd\] Ban 107.173.140.173
2019-11-26 08:38:07,172 fail2ban.actions        \[14488\]: NOTICE  \[sshd\] Ban 107.173.140.173
2019-11-26 09:09:33,617 fail2ban.actions        \[14488\]: NOTICE  \[sshd\] Ban 107.173.140.173
2019-11-26 09:41:10,868 fail2ban.actions        \[14488\]: NOTICE  \[sshd\] Ban 107.173.140.173
...
2019-11-26 21:48:56
94.191.108.176 attackspam
Nov 26 10:38:12 sso sshd[27898]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.108.176
Nov 26 10:38:14 sso sshd[27898]: Failed password for invalid user staten from 94.191.108.176 port 41826 ssh2
...
2019-11-26 21:57:10
200.7.124.238 attack
" "
2019-11-26 21:43:29
192.144.142.72 attackbotsspam
Nov 26 14:46:27 vpn01 sshd[31704]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.144.142.72
Nov 26 14:46:29 vpn01 sshd[31704]: Failed password for invalid user info from 192.144.142.72 port 56781 ssh2
...
2019-11-26 21:46:40
139.99.148.4 attack
139.99.148.4 - - \[26/Nov/2019:11:17:16 +0000\] "POST /wp-login.php HTTP/1.1" 200 6393 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
139.99.148.4 - - \[26/Nov/2019:11:17:18 +0000\] "POST /wp-login.php HTTP/1.1" 200 6254 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
...
2019-11-26 21:46:10
200.146.232.97 attackbots
Nov 26 07:10:45 srv01 sshd[25474]: Invalid user momoko from 200.146.232.97 port 45027
Nov 26 07:10:45 srv01 sshd[25474]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.146.232.97
Nov 26 07:10:45 srv01 sshd[25474]: Invalid user momoko from 200.146.232.97 port 45027
Nov 26 07:10:47 srv01 sshd[25474]: Failed password for invalid user momoko from 200.146.232.97 port 45027 ssh2
Nov 26 07:20:11 srv01 sshd[26260]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.146.232.97  user=root
Nov 26 07:20:13 srv01 sshd[26260]: Failed password for root from 200.146.232.97 port 33842 ssh2
...
2019-11-26 21:22:20
183.129.70.36 attackspam
Nov 26 12:18:29 host sshd[32633]: Invalid user office from 183.129.70.36 port 38774
...
2019-11-26 21:44:34
94.225.201.97 attackbotsspam
Automatic report - Port Scan Attack
2019-11-26 21:32:12

Recently Reported IPs

104.21.53.102 104.21.53.125 104.21.53.113 104.18.31.10
104.21.53.17 104.21.53.168 104.21.53.120 104.21.53.140
104.21.53.171 104.21.53.15 104.21.53.172 104.21.53.175
104.21.53.139 104.18.31.100 104.21.53.194 104.21.53.186
104.21.53.204 104.21.53.153 104.21.53.4 104.21.53.42