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 <<>> 104.21.19.231
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9695
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.19.231.			IN	A

;; AUTHORITY SECTION:
.			265	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021602 1800 900 604800 86400

;; Query time: 61 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Feb 17 08:17:44 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 231.19.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 231.19.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
162.243.144.213 attack
ZGrab Application Layer Scanner Detection
2020-04-30 04:27:51
223.15.165.155 attackbots
Unauthorized connection attempt from IP address 223.15.165.155 on Port 445(SMB)
2020-04-30 04:44:36
58.59.46.58 attackspambots
Unauthorized connection attempt from IP address 58.59.46.58 on Port 445(SMB)
2020-04-30 04:29:32
45.248.71.20 attackspambots
Apr 29 22:38:48 srv-ubuntu-dev3 sshd[70839]: Invalid user ftpuser from 45.248.71.20
Apr 29 22:38:48 srv-ubuntu-dev3 sshd[70839]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.248.71.20
Apr 29 22:38:48 srv-ubuntu-dev3 sshd[70839]: Invalid user ftpuser from 45.248.71.20
Apr 29 22:38:50 srv-ubuntu-dev3 sshd[70839]: Failed password for invalid user ftpuser from 45.248.71.20 port 41296 ssh2
Apr 29 22:42:43 srv-ubuntu-dev3 sshd[71464]: Invalid user eb from 45.248.71.20
Apr 29 22:42:43 srv-ubuntu-dev3 sshd[71464]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.248.71.20
Apr 29 22:42:43 srv-ubuntu-dev3 sshd[71464]: Invalid user eb from 45.248.71.20
Apr 29 22:42:45 srv-ubuntu-dev3 sshd[71464]: Failed password for invalid user eb from 45.248.71.20 port 52436 ssh2
Apr 29 22:46:27 srv-ubuntu-dev3 sshd[72073]: Invalid user test from 45.248.71.20
...
2020-04-30 04:47:07
119.28.116.166 attack
Apr 29 22:34:44 OPSO sshd\[26039\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.28.116.166  user=root
Apr 29 22:34:47 OPSO sshd\[26039\]: Failed password for root from 119.28.116.166 port 38894 ssh2
Apr 29 22:39:31 OPSO sshd\[27291\]: Invalid user ep from 119.28.116.166 port 40718
Apr 29 22:39:31 OPSO sshd\[27291\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.28.116.166
Apr 29 22:39:33 OPSO sshd\[27291\]: Failed password for invalid user ep from 119.28.116.166 port 40718 ssh2
2020-04-30 04:51:51
49.233.46.219 attackbots
$f2bV_matches
2020-04-30 04:16:06
213.74.115.50 attackbots
Unauthorized connection attempt from IP address 213.74.115.50 on Port 445(SMB)
2020-04-30 04:38:41
49.235.49.39 attackbots
2020-04-29T20:10:06.237644shield sshd\[29514\]: Invalid user meet from 49.235.49.39 port 57010
2020-04-29T20:10:06.241551shield sshd\[29514\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.49.39
2020-04-29T20:10:08.365669shield sshd\[29514\]: Failed password for invalid user meet from 49.235.49.39 port 57010 ssh2
2020-04-29T20:15:44.156074shield sshd\[30544\]: Invalid user fork from 49.235.49.39 port 33736
2020-04-29T20:15:44.159653shield sshd\[30544\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.49.39
2020-04-30 04:35:51
51.38.65.175 attackspam
$f2bV_matches
2020-04-30 04:52:23
222.186.175.154 attackspambots
DATE:2020-04-29 22:29:56, IP:222.186.175.154, PORT:ssh SSH brute force auth on honeypot server (epe-honey1-hq)
2020-04-30 04:40:41
180.167.82.162 attackbotsspam
Unauthorized connection attempt from IP address 180.167.82.162 on Port 445(SMB)
2020-04-30 04:21:47
162.243.142.91 attack
ZGrab Application Layer Scanner Detection
2020-04-30 04:26:06
83.97.20.30 attack
(sshd) Failed SSH login from 83.97.20.30 (RO/Romania/30.20.97.83.ro.ovo.sc): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Apr 29 22:22:04 ubnt-55d23 sshd[9049]: Did not receive identification string from 83.97.20.30 port 55589
Apr 29 22:32:09 ubnt-55d23 sshd[10633]: Did not receive identification string from 83.97.20.30 port 7921
2020-04-30 04:39:54
47.74.245.246 attackspambots
SSH authentication failure x 6 reported by Fail2Ban
...
2020-04-30 04:18:06
45.55.231.94 attack
SSH invalid-user multiple login try
2020-04-30 04:19:43

Recently Reported IPs

68.163.10.172 168.68.127.20 104.21.19.239 141.116.49.107
104.21.19.245 20.145.35.127 104.21.19.28 104.21.19.30
104.21.19.54 104.21.19.6 67.109.22.126 187.64.157.166
104.21.19.88 104.21.2.129 85.191.198.108 104.21.2.130
104.21.2.136 104.21.2.140 104.21.2.148 104.21.2.157