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 <<>> 104.21.16.185
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 56643
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.185.			IN	A

;; AUTHORITY SECTION:
.			211	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 14 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:31:29 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 185.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 185.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
154.149.94.59 attack
Sep  3 18:48:14 debian64 sshd[10457]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=154.149.94.59 
Sep  3 18:48:16 debian64 sshd[10457]: Failed password for invalid user ubnt from 154.149.94.59 port 57600 ssh2
...
2020-09-04 07:03:38
54.209.204.136 attackspam
SMTP Screen: 54.209.204.136 (United States): tried sending to 6 unknown recipients
2020-09-04 06:46:23
122.51.156.113 attack
$f2bV_matches
2020-09-04 06:58:13
109.66.126.241 attackbots
Lines containing failures of 109.66.126.241
Sep  2 10:11:23 omfg postfix/smtpd[17776]: connect from bzq-109-66-126-241.red.bezeqint.net[109.66.126.241]
Sep x@x
Sep  2 10:11:24 omfg postfix/smtpd[17776]: lost connection after DATA from bzq-109-66-126-241.red.bezeqint.net[109.66.126.241]
Sep  2 10:11:24 omfg postfix/smtpd[17776]: disconnect from bzq-109-66-126-241.red.bezeqint.net[109.66.126.241] ehlo=1 mail=1 rcpt=0/1 data=0/1 commands=2/4


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=109.66.126.241
2020-09-04 06:31:49
45.95.168.157 attackspam
Sep  4 00:32:01 web1 sshd\[15642\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.95.168.157  user=root
Sep  4 00:32:04 web1 sshd\[15642\]: Failed password for root from 45.95.168.157 port 59822 ssh2
Sep  4 00:34:03 web1 sshd\[15735\]: Invalid user user from 45.95.168.157
Sep  4 00:34:03 web1 sshd\[15735\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.95.168.157
Sep  4 00:34:06 web1 sshd\[15735\]: Failed password for invalid user user from 45.95.168.157 port 58974 ssh2
2020-09-04 06:34:56
197.242.100.156 attack
Sep  3 18:48:30 mellenthin postfix/smtpd[20953]: NOQUEUE: reject: RCPT from unknown[197.242.100.156]: 554 5.7.1 Service unavailable; Client host [197.242.100.156] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/197.242.100.156 / https://www.spamhaus.org/sbl/query/SBL174938; from= to= proto=ESMTP helo=<[197.242.100.156]>
2020-09-04 06:54:06
85.62.1.30 attack
20/9/3@15:33:24: FAIL: Alarm-Network address from=85.62.1.30
20/9/3@15:33:24: FAIL: Alarm-Network address from=85.62.1.30
...
2020-09-04 06:44:05
64.227.0.92 attackbotsspam
Unauthorised connection attempt detected at AUO NODE 4. System is sshd. Protected by AUO Stack Web Application Firewall (WAF)
2020-09-04 07:03:53
45.142.120.179 attack
2020-09-04 01:25:18 auth_plain authenticator failed for (User) [45.142.120.179]: 535 Incorrect authentication data (set_id=h5@lavrinenko.info)
2020-09-04 01:25:59 auth_plain authenticator failed for (User) [45.142.120.179]: 535 Incorrect authentication data (set_id=spine@lavrinenko.info)
...
2020-09-04 06:34:27
220.238.226.51 attack
Port Scan detected!
...
2020-09-04 06:47:33
5.187.188.116 attackspam
SSH Invalid Login
2020-09-04 06:35:31
186.113.18.109 attack
SSH Invalid Login
2020-09-04 06:50:56
164.90.219.86 attack
Try to hack into router
2020-09-04 06:57:27
185.220.101.200 attackbots
ssh intrusion attempt
2020-09-04 06:35:52
192.42.116.16 attackbots
(mod_security) mod_security (id:210492) triggered by 192.42.116.16 (NL/Netherlands/tor-exit.hartvoorinternetvrijheid.nl): 5 in the last 3600 secs
2020-09-04 06:44:18

Recently Reported IPs

104.21.16.181 104.21.16.214 104.21.16.212 104.21.16.205
104.21.16.23 104.21.16.237 104.21.16.241 125.7.66.167
104.21.16.242 104.21.16.25 104.21.16.50 104.21.16.69
104.21.16.53 104.21.16.98 104.21.16.77 104.21.16.73
104.21.16.99 104.21.17.117 104.21.17.109 125.74.10.167