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 <<>> 104.21.19.16
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 133
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.19.16.			IN	A

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

;; Query time: 68 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 18:31:30 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 16.19.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 16.19.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
61.177.172.159 attackspam
2020-07-13T07:37:15.440367na-vps210223 sshd[21399]: Failed password for root from 61.177.172.159 port 12114 ssh2
2020-07-13T07:37:18.699498na-vps210223 sshd[21399]: Failed password for root from 61.177.172.159 port 12114 ssh2
2020-07-13T07:37:22.039005na-vps210223 sshd[21399]: Failed password for root from 61.177.172.159 port 12114 ssh2
2020-07-13T07:37:22.039942na-vps210223 sshd[21399]: error: maximum authentication attempts exceeded for root from 61.177.172.159 port 12114 ssh2 [preauth]
2020-07-13T07:37:22.039968na-vps210223 sshd[21399]: Disconnecting: Too many authentication failures [preauth]
...
2020-07-13 19:50:54
156.96.56.221 attack
SASL broute force
2020-07-13 19:58:15
5.196.72.11 attackspam
Invalid user karma from 5.196.72.11 port 47448
2020-07-13 19:55:36
49.88.112.71 attackspam
Jul 13 12:40:01 eventyay sshd[20117]: Failed password for root from 49.88.112.71 port 62056 ssh2
Jul 13 12:40:03 eventyay sshd[20117]: Failed password for root from 49.88.112.71 port 62056 ssh2
Jul 13 12:40:06 eventyay sshd[20117]: Failed password for root from 49.88.112.71 port 62056 ssh2
...
2020-07-13 19:30:23
64.90.63.133 attack
64.90.63.133 - - [13/Jul/2020:05:47:55 +0200] "GET /wp-login.php HTTP/1.1" 200 6060 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
64.90.63.133 - - [13/Jul/2020:05:47:56 +0200] "POST /wp-login.php HTTP/1.1" 200 6311 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
64.90.63.133 - - [13/Jul/2020:05:47:57 +0200] "POST /xmlrpc.php HTTP/1.1" 200 427 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2020-07-13 19:27:23
83.8.228.21 attackspam
83.8.228.21 - - [13/Jul/2020:04:47:38 +0100] "POST /xmlrpc.php HTTP/1.1" 200 239 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36"
83.8.228.21 - - [13/Jul/2020:04:47:40 +0100] "POST /xmlrpc.php HTTP/1.1" 200 239 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36"
83.8.228.21 - - [13/Jul/2020:04:47:42 +0100] "POST /xmlrpc.php HTTP/1.1" 200 239 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36"
...
2020-07-13 19:41:47
97.64.37.162 attack
2020-07-13T03:41:11.755011shield sshd\[21863\]: Invalid user test from 97.64.37.162 port 45168
2020-07-13T03:41:11.764303shield sshd\[21863\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=97.64.37.162.16clouds.com
2020-07-13T03:41:13.706226shield sshd\[21863\]: Failed password for invalid user test from 97.64.37.162 port 45168 ssh2
2020-07-13T03:47:55.157918shield sshd\[24549\]: Invalid user giaou from 97.64.37.162 port 41638
2020-07-13T03:47:55.166933shield sshd\[24549\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=97.64.37.162.16clouds.com
2020-07-13 19:31:17
42.113.160.77 attackspam
1594612034 - 07/13/2020 05:47:14 Host: 42.113.160.77/42.113.160.77 Port: 445 TCP Blocked
2020-07-13 20:00:07
103.219.112.47 attack
 TCP (SYN) 103.219.112.47:42486 -> port 27447, len 44
2020-07-13 19:45:26
51.83.141.61 attackspam
Automatic report - XMLRPC Attack
2020-07-13 19:48:23
123.125.225.50 attackspam
Jul 13 05:47:44 nas sshd[21678]: Failed password for root from 123.125.225.50 port 53679 ssh2
Jul 13 05:47:50 nas sshd[21680]: Failed password for root from 123.125.225.50 port 53819 ssh2
...
2020-07-13 19:26:07
23.94.57.111 attack
Port scan denied
2020-07-13 19:59:50
152.136.219.231 attackspambots
Jul 13 12:04:00 rotator sshd\[7464\]: Invalid user master from 152.136.219.231Jul 13 12:04:02 rotator sshd\[7464\]: Failed password for invalid user master from 152.136.219.231 port 33634 ssh2Jul 13 12:08:07 rotator sshd\[8251\]: Invalid user lukasz from 152.136.219.231Jul 13 12:08:08 rotator sshd\[8251\]: Failed password for invalid user lukasz from 152.136.219.231 port 44866 ssh2Jul 13 12:10:26 rotator sshd\[8996\]: Invalid user max from 152.136.219.231Jul 13 12:10:27 rotator sshd\[8996\]: Failed password for invalid user max from 152.136.219.231 port 39668 ssh2
...
2020-07-13 20:03:26
161.35.104.69 attackbots
xmlrpc attack
2020-07-13 19:27:44
43.254.241.6 attack
Jul 13 10:38:04 lnxded64 sshd[26754]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.254.241.6
2020-07-13 19:52:24

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