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 <<>> 104.21.54.15
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33886
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.54.15.			IN	A

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

;; Query time: 73 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:34:44 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 15.54.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 15.54.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
80.82.70.162 attackspambots
Oct 12 19:26:58 cho sshd[521183]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.82.70.162 
Oct 12 19:26:58 cho sshd[521183]: Invalid user cvs from 80.82.70.162 port 46292
Oct 12 19:27:00 cho sshd[521183]: Failed password for invalid user cvs from 80.82.70.162 port 46292 ssh2
Oct 12 19:30:01 cho sshd[521414]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.82.70.162  user=root
Oct 12 19:30:02 cho sshd[521414]: Failed password for root from 80.82.70.162 port 48684 ssh2
...
2020-10-13 01:36:20
156.215.225.245 attack
Oct 12 17:15:15 marvibiene sshd[9913]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=156.215.225.245 
Oct 12 17:15:17 marvibiene sshd[9913]: Failed password for invalid user an from 156.215.225.245 port 34996 ssh2
Oct 12 17:39:35 marvibiene sshd[11875]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=156.215.225.245
2020-10-13 01:28:07
142.93.212.91 attackbotsspam
SSH BruteForce Attack
2020-10-13 01:56:49
178.234.37.197 attackspambots
Oct 12 12:57:01 george sshd[5421]: Failed password for invalid user claudio from 178.234.37.197 port 46510 ssh2
Oct 12 13:00:39 george sshd[5526]: Invalid user bear from 178.234.37.197 port 49314
Oct 12 13:00:39 george sshd[5526]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.234.37.197 
Oct 12 13:00:41 george sshd[5526]: Failed password for invalid user bear from 178.234.37.197 port 49314 ssh2
Oct 12 13:04:11 george sshd[5585]: Invalid user wolf from 178.234.37.197 port 52120
...
2020-10-13 01:40:11
179.104.162.203 attackbots
Port Scan detected!
...
2020-10-13 01:17:57
171.15.17.90 attack
Oct 12 13:14:27 pkdns2 sshd\[27189\]: Invalid user romero from 171.15.17.90Oct 12 13:14:28 pkdns2 sshd\[27189\]: Failed password for invalid user romero from 171.15.17.90 port 18592 ssh2Oct 12 13:18:49 pkdns2 sshd\[27423\]: Invalid user m-oouchi from 171.15.17.90Oct 12 13:18:50 pkdns2 sshd\[27423\]: Failed password for invalid user m-oouchi from 171.15.17.90 port 43901 ssh2Oct 12 13:23:11 pkdns2 sshd\[27648\]: Invalid user nicole from 171.15.17.90Oct 12 13:23:13 pkdns2 sshd\[27648\]: Failed password for invalid user nicole from 171.15.17.90 port 51118 ssh2
...
2020-10-13 01:49:20
45.40.198.93 attackspambots
Banned for a week because repeated abuses, for example SSH, but not only
2020-10-13 01:24:39
46.32.252.84 attack
Oct 12 14:34:18 itv-usvr-01 sshd[15556]: Invalid user lucian from 46.32.252.84
2020-10-13 01:53:59
84.2.226.70 attack
(sshd) Failed SSH login from 84.2.226.70 (HU/Hungary/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 12:06:45 server4 sshd[8508]: Invalid user kuryanov from 84.2.226.70
Oct 12 12:06:48 server4 sshd[8508]: Failed password for invalid user kuryanov from 84.2.226.70 port 33458 ssh2
Oct 12 12:13:33 server4 sshd[14439]: Invalid user blessing from 84.2.226.70
Oct 12 12:13:36 server4 sshd[14439]: Failed password for invalid user blessing from 84.2.226.70 port 39810 ssh2
Oct 12 12:17:10 server4 sshd[17556]: Invalid user admin from 84.2.226.70
2020-10-13 01:53:44
210.16.189.87 attackbots
2020-10-11 19:16:53.823659-0500  localhost sshd[81006]: Failed password for invalid user chris from 210.16.189.87 port 56356 ssh2
2020-10-13 01:53:07
45.55.52.145 attackspambots
fail2ban detected bruce force on ssh iptables
2020-10-13 01:42:53
36.66.48.187 attack
36.66.48.187 (ID/Indonesia/-), 6 distributed sshd attacks on account [root] in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: Oct 12 12:22:01 server2 sshd[11465]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190.0.8.134  user=root
Oct 12 12:20:30 server2 sshd[11203]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.254.129.128  user=root
Oct 12 12:20:32 server2 sshd[11203]: Failed password for root from 51.254.129.128 port 60942 ssh2
Oct 12 12:21:29 server2 sshd[11439]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.66.48.187  user=root
Oct 12 12:21:30 server2 sshd[11439]: Failed password for root from 36.66.48.187 port 44636 ssh2
Oct 12 12:17:18 server2 sshd[10604]: Failed password for root from 145.239.19.186 port 45326 ssh2

IP Addresses Blocked:

190.0.8.134 (CO/Colombia/-)
51.254.129.128 (FR/France/-)
2020-10-13 01:27:16
139.59.34.226 attackbots
139.59.34.226 - - [11/Oct/2020:23:40:00 +0100] "POST /wp-login.php HTTP/1.1" 200 2426 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
139.59.34.226 - - [11/Oct/2020:23:40:02 +0100] "POST /wp-login.php HTTP/1.1" 200 2407 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
139.59.34.226 - - [11/Oct/2020:23:40:03 +0100] "POST /xmlrpc.php HTTP/1.1" 403 219 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-10-13 01:31:04
192.35.168.127 attack
1602449154 - 10/11/2020 22:45:54 Host: 192.35.168.127/192.35.168.127 Port: 53 UDP Blocked
...
2020-10-13 01:45:06
125.91.126.92 attackspam
Bruteforce detected by fail2ban
2020-10-13 01:57:05

Recently Reported IPs

104.21.54.136 104.21.54.170 104.21.54.185 104.21.54.164
104.21.54.194 104.21.54.175 104.21.54.165 104.21.54.150
104.18.31.119 104.21.54.39 104.21.54.42 104.21.54.214
104.21.54.172 104.21.54.24 104.21.54.192 104.21.54.36
104.18.31.130 104.18.31.133 104.21.57.250 104.21.57.222