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 <<>> 104.21.43.121
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56631
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.43.121.			IN	A

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

;; Query time: 73 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:30:05 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 121.43.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 121.43.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
196.203.2.11 attack
Honeypot attack, port: 445, PTR: PTR record not found
2020-02-05 06:13:04
178.128.107.27 attackspam
Feb  4 23:05:54 legacy sshd[20544]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.107.27
Feb  4 23:05:55 legacy sshd[20544]: Failed password for invalid user lonely from 178.128.107.27 port 56904 ssh2
Feb  4 23:09:21 legacy sshd[20872]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.107.27
...
2020-02-05 06:29:57
119.236.243.78 attack
Unauthorized connection attempt detected from IP address 119.236.243.78 to port 5555 [J]
2020-02-05 06:42:42
106.12.25.126 attackbotsspam
Feb  4 18:22:56 firewall sshd[5744]: Invalid user dallas from 106.12.25.126
Feb  4 18:22:57 firewall sshd[5744]: Failed password for invalid user dallas from 106.12.25.126 port 56726 ssh2
Feb  4 18:26:25 firewall sshd[5889]: Invalid user rodschat from 106.12.25.126
...
2020-02-05 06:14:04
199.249.230.121 attackspam
02/04/2020-21:19:09.926635 199.249.230.121 Protocol: 6 ET TOR Known Tor Exit Node Traffic group 48
2020-02-05 06:25:57
140.238.15.64 attackspam
Unauthorized connection attempt detected from IP address 140.238.15.64 to port 2220 [J]
2020-02-05 06:00:19
178.62.36.116 attackspambots
Automatic report - Banned IP Access
2020-02-05 06:28:58
185.143.223.168 attack
Forced attempts for SMTP users. Blocked by spam prevention mechanism.
2020-02-05 06:36:04
107.170.244.110 attackspambots
Feb  4 19:20:07 vps46666688 sshd[27080]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=107.170.244.110
Feb  4 19:20:08 vps46666688 sshd[27080]: Failed password for invalid user testtest from 107.170.244.110 port 38666 ssh2
...
2020-02-05 06:35:41
159.203.88.222 attackspambots
Feb  4 21:01:35 roki sshd[2764]: Invalid user nexus from 159.203.88.222
Feb  4 21:01:35 roki sshd[2764]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.88.222
Feb  4 21:01:37 roki sshd[2764]: Failed password for invalid user nexus from 159.203.88.222 port 52150 ssh2
Feb  4 21:19:19 roki sshd[4125]: Invalid user nagios from 159.203.88.222
Feb  4 21:19:19 roki sshd[4125]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.88.222
...
2020-02-05 06:16:50
112.85.42.173 attackspambots
Feb  4 23:21:46 minden010 sshd[17091]: Failed password for root from 112.85.42.173 port 40943 ssh2
Feb  4 23:21:49 minden010 sshd[17091]: Failed password for root from 112.85.42.173 port 40943 ssh2
Feb  4 23:21:59 minden010 sshd[17091]: error: maximum authentication attempts exceeded for root from 112.85.42.173 port 40943 ssh2 [preauth]
...
2020-02-05 06:36:29
123.206.90.149 attackspam
Unauthorized connection attempt detected from IP address 123.206.90.149 to port 2220 [J]
2020-02-05 06:40:58
139.99.219.208 attackbots
Unauthorized connection attempt detected from IP address 139.99.219.208 to port 2220 [J]
2020-02-05 06:13:48
27.2.75.108 attackbotsspam
Unauthorized connection attempt detected from IP address 27.2.75.108 to port 5555 [J]
2020-02-05 06:39:04
203.128.6.134 attack
Honeypot attack, port: 445, PTR: websrs04.brain.net.pk.
2020-02-05 06:35:25

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