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:
IP Type Details Datetime
104.21.75.2 spam
Spammer blacklist in https://www.projecthoneypot.org/ip_104.21.75.2 https://multirbl.valli.org/lookup/104.21.75.2.html
2022-12-29 00:00:44
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.7.23
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 5586
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.7.23.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 22 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:35:47 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 23.7.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 23.7.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
185.168.224.3 attackspambots
445/tcp
[2020-04-04]1pkt
2020-04-05 05:31:02
187.190.236.88 attackbots
Apr  4 22:03:14 plex sshd[19556]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.190.236.88  user=root
Apr  4 22:03:15 plex sshd[19556]: Failed password for root from 187.190.236.88 port 49286 ssh2
2020-04-05 05:35:18
114.98.126.14 attackspam
Invalid user lvl from 114.98.126.14 port 37982
2020-04-05 05:55:18
106.54.139.117 attackbots
Invalid user yac from 106.54.139.117 port 35026
2020-04-05 05:47:32
184.154.189.90 attack
Unauthorized connection attempt detected from IP address 184.154.189.90 to port 5900
2020-04-05 05:44:09
64.227.22.142 attackspam
Attempted connection to port 445.
2020-04-05 05:23:59
222.186.175.150 attackspambots
Apr  4 23:53:04 santamaria sshd\[29448\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150  user=root
Apr  4 23:53:06 santamaria sshd\[29448\]: Failed password for root from 222.186.175.150 port 42708 ssh2
Apr  4 23:53:29 santamaria sshd\[29462\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.150  user=root
...
2020-04-05 05:55:00
176.37.60.16 attackspam
2020-04-04T16:22:11.058575ns386461 sshd\[27614\]: Invalid user db2fenc2 from 176.37.60.16 port 44957
2020-04-04T16:22:11.063423ns386461 sshd\[27614\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=host-176-37-60-16.la.net.ua
2020-04-04T16:22:13.701451ns386461 sshd\[27614\]: Failed password for invalid user db2fenc2 from 176.37.60.16 port 44957 ssh2
2020-04-04T22:03:55.967375ns386461 sshd\[14516\]: Invalid user db2fenc2 from 176.37.60.16 port 53432
2020-04-04T22:03:55.972016ns386461 sshd\[14516\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=host-176-37-60-16.la.net.ua
...
2020-04-05 05:57:51
116.110.12.235 attackspam
23/tcp
[2020-04-04]1pkt
2020-04-05 05:33:22
92.63.194.30 attackbotsspam
04/04/2020-16:35:06.223759 92.63.194.30 Protocol: 6 ET DROP Dshield Block Listed Source group 1
2020-04-05 05:19:39
218.45.205.203 attackspambots
Automatic report - Port Scan Attack
2020-04-05 05:50:40
58.55.80.92 attackspam
23/tcp
[2020-04-04]1pkt
2020-04-05 05:38:13
46.101.0.20 attackbots
Port probing on unauthorized port 17
2020-04-05 05:20:04
171.100.51.90 attackspam
Apr  4 15:34:00 ks10 sshd[2480112]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.100.51.90 
Apr  4 15:34:02 ks10 sshd[2480112]: Failed password for invalid user admin from 171.100.51.90 port 46701 ssh2
...
2020-04-05 05:32:39
51.158.120.115 attackbotsspam
(sshd) Failed SSH login from 51.158.120.115 (FR/France/115-120-158-51.rev.cloud.scaleway.com): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Apr  5 00:09:49 srv sshd[8226]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.158.120.115  user=root
Apr  5 00:09:51 srv sshd[8226]: Failed password for root from 51.158.120.115 port 40096 ssh2
Apr  5 00:15:35 srv sshd[8777]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.158.120.115  user=root
Apr  5 00:15:38 srv sshd[8777]: Failed password for root from 51.158.120.115 port 49452 ssh2
Apr  5 00:19:16 srv sshd[9029]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.158.120.115  user=root
2020-04-05 05:52:22

Recently Reported IPs

104.21.52.219 104.21.52.227 104.21.52.229 104.21.52.23
104.21.52.233 104.21.52.241 104.21.52.242 104.21.52.228
104.21.52.244 104.21.52.249 104.21.52.247 104.21.7.230
104.21.52.237 104.21.52.243 104.21.52.29 104.21.52.26
104.21.52.49 104.21.52.47 104.21.52.45 104.21.52.56