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: None

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 <<>> 104.16.0.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40464
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.16.0.21.			IN	A

;; AUTHORITY SECTION:
.			333	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021601 1800 900 604800 86400

;; Query time: 60 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 04:32:36 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 21.0.16.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.0.16.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
106.12.187.140 attackbotsspam
Lines containing failures of 106.12.187.140
Feb  4 07:55:23 kmh-vmh-002-fsn07 sshd[13495]: Invalid user shuo from 106.12.187.140 port 37292
Feb  4 07:55:23 kmh-vmh-002-fsn07 sshd[13495]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.187.140 
Feb  4 07:55:24 kmh-vmh-002-fsn07 sshd[13495]: Failed password for invalid user shuo from 106.12.187.140 port 37292 ssh2
Feb  4 07:55:25 kmh-vmh-002-fsn07 sshd[13495]: Received disconnect from 106.12.187.140 port 37292:11: Bye Bye [preauth]
Feb  4 07:55:25 kmh-vmh-002-fsn07 sshd[13495]: Disconnected from invalid user shuo 106.12.187.140 port 37292 [preauth]
Feb  4 08:06:24 kmh-vmh-002-fsn07 sshd[30519]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.187.140  user=r.r
Feb  4 08:06:26 kmh-vmh-002-fsn07 sshd[30519]: Failed password for r.r from 106.12.187.140 port 59234 ssh2
Feb  4 08:06:28 kmh-vmh-002-fsn07 sshd[30519]: Received disconnect ........
------------------------------
2020-02-07 00:22:17
68.183.184.61 attackspambots
SSH Brute-Force reported by Fail2Ban
2020-02-07 00:54:04
3.6.37.86 attack
Feb  4 21:30:05 xxx sshd[15311]: Invalid user testftp from 3.6.37.86
Feb  4 21:30:07 xxx sshd[15311]: Failed password for invalid user testftp from 3.6.37.86 port 46878 ssh2
Feb  4 21:35:04 xxx sshd[15561]: Invalid user bonaka from 3.6.37.86
Feb  4 21:35:06 xxx sshd[15561]: Failed password for invalid user bonaka from 3.6.37.86 port 60462 ssh2
Feb  4 21:39:34 xxx sshd[16093]: Invalid user edubuntu from 3.6.37.86


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=3.6.37.86
2020-02-07 00:34:48
45.58.123.178 attackspam
Portscan or hack attempt detected by psad/fwsnort
2020-02-07 00:50:08
222.186.42.75 attackspambots
2020-02-06T17:52:44.094574scmdmz1 sshd[9351]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.75  user=root
2020-02-06T17:52:45.990030scmdmz1 sshd[9351]: Failed password for root from 222.186.42.75 port 34641 ssh2
2020-02-06T17:52:48.131582scmdmz1 sshd[9351]: Failed password for root from 222.186.42.75 port 34641 ssh2
2020-02-06T17:52:44.094574scmdmz1 sshd[9351]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.75  user=root
2020-02-06T17:52:45.990030scmdmz1 sshd[9351]: Failed password for root from 222.186.42.75 port 34641 ssh2
2020-02-06T17:52:48.131582scmdmz1 sshd[9351]: Failed password for root from 222.186.42.75 port 34641 ssh2
2020-02-06T17:52:44.094574scmdmz1 sshd[9351]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.75  user=root
2020-02-06T17:52:45.990030scmdmz1 sshd[9351]: Failed password for root from 222.186.42.75 port 34641 ssh2
2020-02-06T17:52:
2020-02-07 01:00:34
45.56.78.64 attackspam
Unauthorized connection attempt detected from IP address 45.56.78.64 to port 443
2020-02-07 00:28:18
59.12.242.248 attackbotsspam
Telnetd brute force attack detected by fail2ban
2020-02-07 00:20:04
162.243.128.105 attackspam
Port 465 scan denied
2020-02-07 01:03:20
51.254.49.97 attackbots
Unauthorised access (Feb  6) SRC=51.254.49.97 LEN=60 TTL=53 ID=64718 DF TCP DPT=135 WINDOW=5840 SYN
2020-02-07 01:04:31
211.253.129.225 attackspam
Feb  6 15:44:10 www sshd\[71732\]: Invalid user ngd from 211.253.129.225
Feb  6 15:44:10 www sshd\[71732\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.253.129.225
Feb  6 15:44:13 www sshd\[71732\]: Failed password for invalid user ngd from 211.253.129.225 port 59612 ssh2
...
2020-02-07 00:35:42
222.186.42.155 attackbotsspam
Feb  6 17:07:43 vpn01 sshd[1183]: Failed password for root from 222.186.42.155 port 16164 ssh2
...
2020-02-07 01:02:01
178.210.39.78 attackbots
Feb  6 16:31:54 silence02 sshd[31373]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.210.39.78
Feb  6 16:31:56 silence02 sshd[31373]: Failed password for invalid user ayq from 178.210.39.78 port 60370 ssh2
Feb  6 16:35:05 silence02 sshd[31670]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.210.39.78
2020-02-07 00:37:27
106.54.141.8 attackbots
Feb  6 11:47:03 firewall sshd[21598]: Invalid user cjb from 106.54.141.8
Feb  6 11:47:05 firewall sshd[21598]: Failed password for invalid user cjb from 106.54.141.8 port 54594 ssh2
Feb  6 11:55:22 firewall sshd[21975]: Invalid user jst from 106.54.141.8
...
2020-02-07 00:46:47
189.193.91.93 attackspambots
2020-02-06T14:20:09.390845homeassistant sshd[24349]: Invalid user xmj from 189.193.91.93 port 39834
2020-02-06T14:20:09.397533homeassistant sshd[24349]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=189.193.91.93
...
2020-02-07 00:33:35
105.186.234.205 attack
Feb  6 15:18:32 haigwepa sshd[19606]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=105.186.234.205 
Feb  6 15:18:34 haigwepa sshd[19606]: Failed password for invalid user nis from 105.186.234.205 port 39752 ssh2
...
2020-02-07 00:52:28

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