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 <<>> 104.21.67.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52495
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.67.21.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 59 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:45:35 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.67.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.67.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
94.21.114.228 attackbotsspam
1600015984 - 09/13/2020 18:53:04 Host: 94.21.114.228/94.21.114.228 Port: 445 TCP Blocked
2020-09-14 17:33:40
23.129.64.206 attack
"Unauthorized connection attempt on SSHD detected"
2020-09-14 17:29:04
62.215.6.11 attackbots
Sep 14 11:11:47 buvik sshd[28020]: Failed password for invalid user admin from 62.215.6.11 port 54311 ssh2
Sep 14 11:13:33 buvik sshd[28234]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.215.6.11  user=root
Sep 14 11:13:35 buvik sshd[28234]: Failed password for root from 62.215.6.11 port 38676 ssh2
...
2020-09-14 17:21:22
64.225.25.59 attack
[f2b] sshd bruteforce, retries: 1
2020-09-14 17:14:16
111.93.200.50 attackbots
Sep 14 04:08:13 firewall sshd[14041]: Failed password for root from 111.93.200.50 port 41886 ssh2
Sep 14 04:09:45 firewall sshd[14131]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.93.200.50  user=root
Sep 14 04:09:47 firewall sshd[14131]: Failed password for root from 111.93.200.50 port 52315 ssh2
...
2020-09-14 17:20:54
120.59.124.77 attackspam
Port probing on unauthorized port 23
2020-09-14 17:15:22
106.13.228.62 attackspam
Sep 14 10:48:31 minden010 sshd[8071]: Failed password for root from 106.13.228.62 port 53750 ssh2
Sep 14 10:51:45 minden010 sshd[9164]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.228.62
Sep 14 10:51:46 minden010 sshd[9164]: Failed password for invalid user boris from 106.13.228.62 port 38862 ssh2
...
2020-09-14 17:16:54
121.201.61.189 attack
(sshd) Failed SSH login from 121.201.61.189 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 14 03:20:15 optimus sshd[25516]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.201.61.189  user=root
Sep 14 03:20:18 optimus sshd[25516]: Failed password for root from 121.201.61.189 port 43470 ssh2
Sep 14 03:37:43 optimus sshd[30021]: Invalid user admin from 121.201.61.189
Sep 14 03:37:43 optimus sshd[30021]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.201.61.189 
Sep 14 03:37:45 optimus sshd[30021]: Failed password for invalid user admin from 121.201.61.189 port 60336 ssh2
2020-09-14 17:12:36
45.95.168.96 attackbotsspam
2020-09-14 11:15:04 dovecot_login authenticator failed for pr.predictams.live \(USER\) \[45.95.168.96\]: 535 Incorrect authentication data \(set_id=student@opso.it\)
2020-09-14 11:15:04 dovecot_login authenticator failed for pr.predictams.live \(USER\) \[45.95.168.96\]: 535 Incorrect authentication data \(set_id=student@nophost.com\)
2020-09-14 11:17:30 dovecot_login authenticator failed for pr.predictams.live \(USER\) \[45.95.168.96\]: 535 Incorrect authentication data \(set_id=student@nopcommerce.it\)
2020-09-14 11:18:37 dovecot_login authenticator failed for pr.predictams.live \(USER\) \[45.95.168.96\]: 535 Incorrect authentication data \(set_id=student@nophost.com\)
2020-09-14 11:18:37 dovecot_login authenticator failed for pr.predictams.live \(USER\) \[45.95.168.96\]: 535 Incorrect authentication data \(set_id=student@opso.it\)
2020-09-14 17:19:23
202.134.160.99 attackspambots
Sep 14 11:16:26 nuernberg-4g-01 sshd[25295]: Failed password for root from 202.134.160.99 port 38858 ssh2
Sep 14 11:20:56 nuernberg-4g-01 sshd[26820]: Failed password for root from 202.134.160.99 port 51512 ssh2
2020-09-14 17:35:19
202.83.161.117 attackspambots
Sep 14 07:14:55 santamaria sshd\[12194\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.83.161.117  user=root
Sep 14 07:14:56 santamaria sshd\[12194\]: Failed password for root from 202.83.161.117 port 53988 ssh2
Sep 14 07:19:37 santamaria sshd\[12271\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.83.161.117  user=root
...
2020-09-14 17:04:02
103.237.58.45 attackbotsspam
Attempted Brute Force (dovecot)
2020-09-14 17:01:57
213.230.72.55 attack
Automatic report - XMLRPC Attack
2020-09-14 17:31:58
116.106.122.51 attack
20/9/13@12:53:39: FAIL: Alarm-Network address from=116.106.122.51
20/9/13@12:53:40: FAIL: Alarm-Network address from=116.106.122.51
...
2020-09-14 17:05:02
222.186.175.215 attack
Time:     Mon Sep 14 11:04:10 2020 +0200
IP:       222.186.175.215 (CN/China/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 14 11:03:54 mail-01 sshd[6712]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.215  user=root
Sep 14 11:03:56 mail-01 sshd[6712]: Failed password for root from 222.186.175.215 port 21082 ssh2
Sep 14 11:03:59 mail-01 sshd[6712]: Failed password for root from 222.186.175.215 port 21082 ssh2
Sep 14 11:04:02 mail-01 sshd[6712]: Failed password for root from 222.186.175.215 port 21082 ssh2
Sep 14 11:04:05 mail-01 sshd[6712]: Failed password for root from 222.186.175.215 port 21082 ssh2
2020-09-14 17:08:44

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