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 <<>> 104.21.21.39
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 47659
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.21.39.			IN	A

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

;; Query time: 58 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:15:59 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 39.21.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 39.21.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
115.78.15.80 attack
Unauthorized connection attempt from IP address 115.78.15.80 on Port 445(SMB)
2019-11-28 21:58:57
91.121.87.174 attack
Nov 28 08:31:59 dedicated sshd[8379]: Invalid user 1q2w3e4r from 91.121.87.174 port 34252
2019-11-28 22:19:47
202.74.243.106 attack
Unauthorized connection attempt from IP address 202.74.243.106 on Port 445(SMB)
2019-11-28 21:58:36
132.154.104.117 attack
ddos attack on my server
2019-11-28 22:12:58
51.83.32.232 attack
Nov 28 12:03:12 ns382633 sshd\[19687\]: Invalid user ekaterin from 51.83.32.232 port 43258
Nov 28 12:03:12 ns382633 sshd\[19687\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.32.232
Nov 28 12:03:14 ns382633 sshd\[19687\]: Failed password for invalid user ekaterin from 51.83.32.232 port 43258 ssh2
Nov 28 12:25:04 ns382633 sshd\[23639\]: Invalid user operator from 51.83.32.232 port 33786
Nov 28 12:25:04 ns382633 sshd\[23639\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.32.232
2019-11-28 22:38:08
115.21.4.207 attackspam
Telnet/23 MH Probe, BF, Hack -
2019-11-28 21:58:03
160.116.0.30 attack
Illegal actions on webapp
2019-11-28 22:16:46
101.255.81.91 attackbots
Nov 27 21:21:59 web1 sshd\[10372\]: Invalid user donnajean from 101.255.81.91
Nov 27 21:21:59 web1 sshd\[10372\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.255.81.91
Nov 27 21:22:01 web1 sshd\[10372\]: Failed password for invalid user donnajean from 101.255.81.91 port 38866 ssh2
Nov 27 21:26:14 web1 sshd\[10784\]: Invalid user opinia from 101.255.81.91
Nov 27 21:26:14 web1 sshd\[10784\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.255.81.91
2019-11-28 22:27:07
117.71.53.105 attackspam
sshd jail - ssh hack attempt
2019-11-28 22:14:15
101.251.72.205 attackbotsspam
Nov 28 09:09:49 server sshd\[10359\]: Invalid user jalila from 101.251.72.205
Nov 28 09:09:49 server sshd\[10359\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.251.72.205 
Nov 28 09:09:51 server sshd\[10359\]: Failed password for invalid user jalila from 101.251.72.205 port 45632 ssh2
Nov 28 09:17:46 server sshd\[12545\]: Invalid user test from 101.251.72.205
Nov 28 09:17:46 server sshd\[12545\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.251.72.205 
...
2019-11-28 22:20:43
189.78.91.127 attackbots
port scan and connect, tcp 1433 (ms-sql-s)
2019-11-28 22:11:25
125.209.118.118 attackspambots
Unauthorized connection attempt from IP address 125.209.118.118 on Port 445(SMB)
2019-11-28 22:34:46
61.1.69.223 attackspam
Automatic report - SSH Brute-Force Attack
2019-11-28 22:10:58
129.28.31.102 attackbotsspam
Nov 27 23:52:57 php1 sshd\[15030\]: Invalid user lersbryggen from 129.28.31.102
Nov 27 23:52:57 php1 sshd\[15030\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.28.31.102
Nov 27 23:53:00 php1 sshd\[15030\]: Failed password for invalid user lersbryggen from 129.28.31.102 port 44514 ssh2
Nov 28 00:00:23 php1 sshd\[15637\]: Invalid user rosin from 129.28.31.102
Nov 28 00:00:23 php1 sshd\[15637\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.28.31.102
2019-11-28 21:55:10
49.234.18.158 attackspambots
Invalid user ed from 49.234.18.158 port 51230
2019-11-28 22:35:18

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