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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.37.105
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 7579
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.37.105.			IN	A

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

;; Query time: 26 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:26:24 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 105.37.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 105.37.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
201.140.209.33 attack
1578431972 - 01/07/2020 22:19:32 Host: 201.140.209.33/201.140.209.33 Port: 445 TCP Blocked
2020-01-08 06:23:43
115.186.188.53 attackspambots
Jan  8 02:19:59 gw1 sshd[22497]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.186.188.53
Jan  8 02:20:02 gw1 sshd[22497]: Failed password for invalid user op from 115.186.188.53 port 54080 ssh2
...
2020-01-08 06:04:13
51.68.231.103 attackspambots
Jan  7 22:41:40 plex sshd[10511]: Invalid user aris from 51.68.231.103 port 42618
2020-01-08 05:57:17
45.119.215.68 attackbotsspam
Jan  7 18:18:11 firewall sshd[13710]: Invalid user clamav from 45.119.215.68
Jan  7 18:18:13 firewall sshd[13710]: Failed password for invalid user clamav from 45.119.215.68 port 44122 ssh2
Jan  7 18:20:21 firewall sshd[13796]: Invalid user mailgate from 45.119.215.68
...
2020-01-08 05:50:04
213.82.88.180 attackspam
Jan  7 23:04:17 meumeu sshd[29849]: Failed password for nagios from 213.82.88.180 port 61627 ssh2
Jan  7 23:06:46 meumeu sshd[30308]: Failed password for root from 213.82.88.180 port 11023 ssh2
...
2020-01-08 06:17:54
180.76.176.174 attackspam
Automatic report - Banned IP Access
2020-01-08 05:57:44
142.93.142.173 attackbots
142.93.142.173 - - [07/Jan/2020:22:20:12 +0100] "GET /wp-login.php HTTP/1.1" 404 454
...
2020-01-08 05:55:28
49.233.142.213 attackspambots
Jan  7 11:34:01 hanapaa sshd\[11280\]: Invalid user hy from 49.233.142.213
Jan  7 11:34:01 hanapaa sshd\[11280\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.142.213
Jan  7 11:34:03 hanapaa sshd\[11280\]: Failed password for invalid user hy from 49.233.142.213 port 37846 ssh2
Jan  7 11:38:03 hanapaa sshd\[11740\]: Invalid user zgu from 49.233.142.213
Jan  7 11:38:03 hanapaa sshd\[11740\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.142.213
2020-01-08 06:10:36
114.224.159.193 attackbots
2020-01-07 15:19:11 dovecot_login authenticator failed for (ahbvg) [114.224.159.193]:51660 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=yangqiang@lerctr.org)
2020-01-07 15:19:18 dovecot_login authenticator failed for (lvind) [114.224.159.193]:51660 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=yangqiang@lerctr.org)
2020-01-07 15:19:30 dovecot_login authenticator failed for (jptrm) [114.224.159.193]:51660 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=yangqiang@lerctr.org)
...
2020-01-08 06:25:48
222.186.169.194 attack
2020-01-07T22:56:21.623283ns386461 sshd\[26260\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.194  user=root
2020-01-07T22:56:23.272355ns386461 sshd\[26260\]: Failed password for root from 222.186.169.194 port 32112 ssh2
2020-01-07T22:56:26.557121ns386461 sshd\[26260\]: Failed password for root from 222.186.169.194 port 32112 ssh2
2020-01-07T22:56:29.590520ns386461 sshd\[26260\]: Failed password for root from 222.186.169.194 port 32112 ssh2
2020-01-07T22:56:33.034610ns386461 sshd\[26260\]: Failed password for root from 222.186.169.194 port 32112 ssh2
...
2020-01-08 05:59:18
103.114.107.230 attackspambots
01/07/2020-17:20:34.021924 103.114.107.230 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-01-08 06:24:00
70.233.168.208 attackbots
Unauthorized connection attempt detected from IP address 70.233.168.208 to port 2220 [J]
2020-01-08 06:20:30
176.228.65.39 attackspambots
2020-01-07T21:19:47.032578homeassistant sshd[19101]: Invalid user RPM from 176.228.65.39 port 50324
2020-01-07T21:19:47.136642homeassistant sshd[19101]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=176.228.65.39
...
2020-01-08 06:15:54
159.192.96.253 attack
SSH authentication failure x 6 reported by Fail2Ban
...
2020-01-08 06:21:14
68.183.127.4 attackspam
Bad crawling causing excessive 404 errors
2020-01-08 06:19:41

Recently Reported IPs

104.21.36.92 104.21.37.104 104.21.37.101 104.21.37.118
104.21.37.125 104.21.37.122 104.21.37.126 104.21.37.124
104.21.37.135 104.21.37.116 104.21.69.206 104.21.37.12
104.21.37.120 104.21.37.139 104.21.37.138 104.21.37.140
104.21.37.141 104.21.37.15 104.21.69.209 104.21.37.155