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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.91.50
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 5779
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.91.50.			IN	A

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

;; Query time: 53 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:22:17 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 50.91.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 50.91.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
113.253.235.219 attackbotsspam
Port Scan
...
2020-08-16 00:30:06
34.64.218.102 attackspam
34.64.218.102 - - [15/Aug/2020:17:24:42 +0200] "POST /wp-login.php HTTP/1.0" 200 4749 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-08-16 00:24:21
123.99.80.150 attack
Automatic report - Port Scan Attack
2020-08-16 00:21:52
46.59.65.88 attack
2020-08-15T14:41:28+0000 Failed SSH Authentication/Brute Force Attack. (Server 6)
2020-08-16 00:30:53
213.177.107.170 attackbots
Dovecot Invalid User Login Attempt.
2020-08-16 00:54:10
132.148.154.8 attackspam
132.148.154.8 - - [15/Aug/2020:17:12:49 +0100] "POST /wp-login.php HTTP/1.1" 200 1885 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
132.148.154.8 - - [15/Aug/2020:17:12:51 +0100] "POST /wp-login.php HTTP/1.1" 200 1868 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
132.148.154.8 - - [15/Aug/2020:17:12:52 +0100] "POST /xmlrpc.php HTTP/1.1" 403 219 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-08-16 00:54:25
196.52.43.117 attackspambots
 TCP (SYN) 196.52.43.117:60042 -> port 2001, len 44
2020-08-16 00:28:42
111.229.120.173 attack
Aug 15 18:14:31 santamaria sshd\[25159\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.120.173  user=root
Aug 15 18:14:34 santamaria sshd\[25159\]: Failed password for root from 111.229.120.173 port 40206 ssh2
Aug 15 18:18:13 santamaria sshd\[25235\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.120.173  user=root
...
2020-08-16 00:20:49
142.112.81.183 attackspam
Aug 15 14:50:39 ns381471 sshd[28518]: Failed password for root from 142.112.81.183 port 42262 ssh2
2020-08-16 00:49:32
183.166.146.85 attackbots
Aug 15 15:27:41 srv01 postfix/smtpd\[26090\]: warning: unknown\[183.166.146.85\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 15 15:34:36 srv01 postfix/smtpd\[31854\]: warning: unknown\[183.166.146.85\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 15 15:38:02 srv01 postfix/smtpd\[31854\]: warning: unknown\[183.166.146.85\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 15 15:38:13 srv01 postfix/smtpd\[31854\]: warning: unknown\[183.166.146.85\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 15 15:38:29 srv01 postfix/smtpd\[31854\]: warning: unknown\[183.166.146.85\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-08-16 00:44:48
52.28.85.232 attackspambots
GET /.git/HEAD HTTP/1.1
2020-08-16 00:34:57
167.99.154.211 attack
firewall-block, port(s): 37222/tcp
2020-08-16 00:32:07
223.72.63.85 attackspam
Aug 15 13:42:45 rocket sshd[6640]: Failed password for root from 223.72.63.85 port 5306 ssh2
Aug 15 13:43:54 rocket sshd[6763]: Failed password for root from 223.72.63.85 port 5121 ssh2
...
2020-08-16 00:42:36
157.230.132.100 attackbots
(sshd) Failed SSH login from 157.230.132.100 (US/United States/-): 5 in the last 3600 secs
2020-08-16 00:36:38
114.67.85.74 attackspambots
SSH invalid-user multiple login try
2020-08-16 00:27:16

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