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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.16.211.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 13912
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.16.211.21.			IN	A

;; AUTHORITY SECTION:
.			471	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 47 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 16:50:59 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 21.211.16.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.211.16.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
157.230.59.44 attack
2020-10-01T07:52:41.669300ollin.zadara.org sshd[1718304]: User root from 157.230.59.44 not allowed because not listed in AllowUsers
2020-10-01T07:52:43.815022ollin.zadara.org sshd[1718304]: Failed password for invalid user root from 157.230.59.44 port 59488 ssh2
...
2020-10-01 13:43:57
223.31.196.3 attackspam
Oct  1 03:15:21 mail sshd[8772]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.31.196.3
2020-10-01 13:28:18
220.186.170.90 attackbots
20 attempts against mh-ssh on shade
2020-10-01 13:17:19
162.243.10.64 attack
Invalid user consul from 162.243.10.64 port 57046
2020-10-01 13:46:47
103.103.130.245 attack
20 attempts against mh-ssh on air
2020-10-01 13:33:04
103.208.137.2 attackbots
Brute%20Force%20SSH
2020-10-01 13:34:30
51.255.173.70 attackspambots
Oct  1 15:03:18 NG-HHDC-SVS-001 sshd[1538]: Invalid user test1 from 51.255.173.70
...
2020-10-01 13:33:29
129.152.141.71 attackbots
Oct  1 07:01:29 server sshd[42917]: Failed password for invalid user minecraft from 129.152.141.71 port 40983 ssh2
Oct  1 07:05:25 server sshd[43827]: Failed password for invalid user nelson from 129.152.141.71 port 15238 ssh2
Oct  1 07:09:30 server sshd[44747]: Failed password for root from 129.152.141.71 port 45995 ssh2
2020-10-01 13:32:26
84.13.44.212 attackbots
Invalid user pi from 84.13.44.212 port 54256
2020-10-01 13:36:17
92.202.178.53 attack
Triggered: repeated knocking on closed ports.
2020-10-01 13:30:48
142.93.235.47 attackspambots
Invalid user buero from 142.93.235.47 port 40720
2020-10-01 13:45:51
203.128.78.61 attackspam
Sep 30 22:40:37 ns3164893 sshd[12006]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.128.78.61
Sep 30 22:40:39 ns3164893 sshd[12006]: Failed password for invalid user tech from 203.128.78.61 port 53465 ssh2
...
2020-10-01 13:48:46
51.178.87.50 attackbots
Oct  1 05:02:46 ns382633 sshd\[7728\]: Invalid user appluat from 51.178.87.50 port 37116
Oct  1 05:02:46 ns382633 sshd\[7728\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.87.50
Oct  1 05:02:48 ns382633 sshd\[7728\]: Failed password for invalid user appluat from 51.178.87.50 port 37116 ssh2
Oct  1 05:19:46 ns382633 sshd\[11201\]: Invalid user ela from 51.178.87.50 port 39394
Oct  1 05:19:46 ns382633 sshd\[11201\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.87.50
2020-10-01 13:46:34
190.244.125.190 attackspam
Sep 30 22:33:29 server770 sshd[17896]: Did not receive identification string from 190.244.125.190 port 55657
Sep 30 22:33:55 server770 sshd[17901]: Invalid user user from 190.244.125.190 port 55974
Sep 30 22:33:56 server770 sshd[17901]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.244.125.190
Sep 30 22:33:57 server770 sshd[17901]: Failed password for invalid user user from 190.244.125.190 port 55974 ssh2
Sep 30 22:33:58 server770 sshd[17901]: Connection closed by 190.244.125.190 port 55974 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=190.244.125.190
2020-10-01 13:40:10
106.55.23.112 attackspambots
(sshd) Failed SSH login from 106.55.23.112 (-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct  1 00:44:42 server2 sshd[17807]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.55.23.112  user=root
Oct  1 00:44:44 server2 sshd[17807]: Failed password for root from 106.55.23.112 port 34854 ssh2
Oct  1 01:15:11 server2 sshd[3925]: Invalid user testing from 106.55.23.112 port 50078
Oct  1 01:15:14 server2 sshd[3925]: Failed password for invalid user testing from 106.55.23.112 port 50078 ssh2
Oct  1 01:23:48 server2 sshd[9099]: Invalid user dst from 106.55.23.112 port 58944
2020-10-01 13:31:12

Recently Reported IPs

104.16.211.171 104.16.211.218 104.16.211.231 105.99.35.215
104.16.211.87 104.16.212.171 104.16.212.21 230.11.35.151
104.16.212.218 31.5.41.10 104.16.212.24 104.16.212.249
104.16.212.87 104.16.213.17 104.16.213.171 104.16.213.21
104.16.213.218 104.16.213.24 104.16.213.249 104.16.214.13