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 <<>> 104.21.16.195
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.195.			IN	A

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

;; Query time: 64 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:12:30 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 195.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 195.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
148.72.65.10 attackspambots
Dec 25 02:49:46 ws12vmsma01 sshd[38314]: Failed password for invalid user dovecot from 148.72.65.10 port 46414 ssh2
Dec 25 02:58:00 ws12vmsma01 sshd[39528]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip-148-72-65-10.ip.secureserver.net  user=root
Dec 25 02:58:02 ws12vmsma01 sshd[39528]: Failed password for root from 148.72.65.10 port 44698 ssh2
...
2019-12-25 13:18:53
201.16.197.149 attack
$f2bV_matches
2019-12-25 13:36:30
187.188.20.94 attackspambots
Unauthorized connection attempt detected from IP address 187.188.20.94 to port 445
2019-12-25 13:07:11
92.222.216.81 attackbots
Dec 25 06:30:43 mout sshd[25635]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.216.81  user=root
Dec 25 06:30:45 mout sshd[25635]: Failed password for root from 92.222.216.81 port 56770 ssh2
2019-12-25 13:44:10
106.54.24.47 attack
Dec 24 23:45:39 DNS-2 sshd[9283]: User lp from 106.54.24.47 not allowed because not listed in AllowUsers
Dec 24 23:45:39 DNS-2 sshd[9283]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.24.47  user=lp
Dec 24 23:45:41 DNS-2 sshd[9283]: Failed password for invalid user lp from 106.54.24.47 port 51362 ssh2
Dec 24 23:45:42 DNS-2 sshd[9283]: Received disconnect from 106.54.24.47 port 51362:11: Bye Bye [preauth]
Dec 24 23:45:42 DNS-2 sshd[9283]: Disconnected from invalid user lp 106.54.24.47 port 51362 [preauth]
Dec 25 00:04:43 DNS-2 sshd[10696]: Invalid user o4 from 106.54.24.47 port 50154
Dec 25 00:04:43 DNS-2 sshd[10696]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.54.24.47 
Dec 25 00:04:45 DNS-2 sshd[10696]: Failed password for invalid user o4 from 106.54.24.47 port 50154 ssh2
Dec 25 00:04:46 DNS-2 sshd[10696]: Received disconnect from 106.54.24.47 port 50154:11: Bye Bye [preau........
-------------------------------
2019-12-25 09:11:54
218.92.0.155 attackbotsspam
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.155  user=root
Failed password for root from 218.92.0.155 port 27746 ssh2
Failed password for root from 218.92.0.155 port 27746 ssh2
Failed password for root from 218.92.0.155 port 27746 ssh2
Failed password for root from 218.92.0.155 port 27746 ssh2
2019-12-25 13:00:33
45.93.20.180 attack
Unauthorized connection attempt detected from IP address 45.93.20.180 to port 11754
2019-12-25 13:24:34
211.159.175.1 attack
Fail2Ban Ban Triggered
2019-12-25 13:32:01
106.12.45.108 attackspam
[Aegis] @ 2019-12-25 05:57:59  0000 -> Attempted Administrator Privilege Gain: ET SCAN LibSSH Based Frequent SSH Connections Likely BruteForce Attack
2019-12-25 13:16:02
41.249.250.209 attack
Dec 25 05:58:07 MK-Soft-Root1 sshd[27257]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=41.249.250.209 
Dec 25 05:58:09 MK-Soft-Root1 sshd[27257]: Failed password for invalid user patoka from 41.249.250.209 port 49188 ssh2
...
2019-12-25 13:17:45
52.142.201.115 attackspambots
$f2bV_matches
2019-12-25 13:31:42
222.186.190.17 attack
Brute force SSH attack
2019-12-25 13:33:56
93.186.253.67 attack
2019-12-24T23:12:16.610549server03.shostnamee24.hostname sshd[21136]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.186.253.67  user=r.r
2019-12-24T23:12:18.683956server03.shostnamee24.hostname sshd[21136]: Failed password for r.r from 93.186.253.67 port 38810 ssh2
2019-12-24T23:12:54.282353server03.shostnamee24.hostname sshd[21159]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.186.253.67  user=r.r
2019-12-24T23:12:56.240211server03.shostnamee24.hostname sshd[21159]: Failed password for r.r from 93.186.253.67 port 37464 ssh2
2019-12-24T23:13:31.981315server03.shostnamee24.hostname sshd[21161]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.186.253.67  user=r.r
2019-12-24T23:13:34.019322server03.shostnamee24.hostname sshd[21161]: Failed password for r.r from 93.186.253.67 port 36134 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view
2019-12-25 13:19:49
181.65.164.179 attack
Dec 25 05:58:03 mout sshd[23001]: Invalid user sym from 181.65.164.179 port 47420
2019-12-25 13:21:18
222.186.173.142 attackbotsspam
Dec 25 00:28:07 linuxvps sshd\[20161\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.142  user=root
Dec 25 00:28:09 linuxvps sshd\[20161\]: Failed password for root from 222.186.173.142 port 1812 ssh2
Dec 25 00:28:25 linuxvps sshd\[20391\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.142  user=root
Dec 25 00:28:27 linuxvps sshd\[20391\]: Failed password for root from 222.186.173.142 port 22926 ssh2
Dec 25 00:28:47 linuxvps sshd\[20622\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.142  user=root
2019-12-25 13:35:12

Recently Reported IPs

104.21.16.174 104.21.16.177 104.21.16.201 104.21.16.184
104.21.16.2 104.21.67.5 104.21.16.199 104.21.16.202
104.21.16.19 104.21.16.175 104.21.16.204 104.21.16.222
104.21.16.220 104.21.16.221 104.21.16.224 104.21.16.236
104.21.16.227 104.21.67.54 104.21.16.244 104.21.16.248