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 <<>> 104.21.53.169
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 48535
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.53.169.			IN	A

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

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:36:11 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 169.53.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 169.53.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
191.53.236.126 attackspambots
Aug  1 08:17:34 mailman postfix/smtpd[9955]: warning: unknown[191.53.236.126]: SASL PLAIN authentication failed: authentication failure
2019-08-02 04:26:03
81.23.199.5 attackbots
" "
2019-08-02 04:25:26
31.123.132.222 attackbots
Jul 29 10:55:55 vpxxxxxxx22308 sshd[17561]: Invalid user ubnt from 31.123.132.222
Jul 29 10:55:56 vpxxxxxxx22308 sshd[17561]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=31.123.132.222
Jul 29 10:55:58 vpxxxxxxx22308 sshd[17561]: Failed password for invalid user ubnt from 31.123.132.222 port 37378 ssh2
Jul 29 10:56:06 vpxxxxxxx22308 sshd[17607]: Invalid user openhabian from 31.123.132.222
Jul 29 10:56:07 vpxxxxxxx22308 sshd[17607]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=31.123.132.222

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=31.123.132.222
2019-08-02 03:57:32
91.134.140.32 attack
Aug  1 21:15:56 vpn01 sshd\[16807\]: Invalid user sam from 91.134.140.32
Aug  1 21:15:56 vpn01 sshd\[16807\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.134.140.32
Aug  1 21:15:57 vpn01 sshd\[16807\]: Failed password for invalid user sam from 91.134.140.32 port 47410 ssh2
2019-08-02 03:56:52
131.100.77.194 attackbots
Aug  1 08:17:41 mailman postfix/smtpd[9957]: warning: 194-77-100-131.internetcentral.com.br[131.100.77.194]: SASL PLAIN authentication failed: authentication failure
2019-08-02 04:20:22
110.14.205.242 attackspambots
DATE:2019-08-01 15:13:59, IP:110.14.205.242, PORT:telnet Telnet brute force auth on honeypot server (honey-neo-dc-bis)
2019-08-02 03:54:25
180.149.125.168 attack
Honeypot hit.
2019-08-02 03:52:32
187.132.40.131 attack
Aug  1 16:23:24 MK-Soft-VM6 sshd\[9658\]: Invalid user website from 187.132.40.131 port 51289
Aug  1 16:23:24 MK-Soft-VM6 sshd\[9658\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.132.40.131
Aug  1 16:23:26 MK-Soft-VM6 sshd\[9658\]: Failed password for invalid user website from 187.132.40.131 port 51289 ssh2
...
2019-08-02 04:22:52
89.169.12.0 attackspambots
8291/tcp
2019-08-02 04:23:11
123.21.206.157 attackbotsspam
Aug  1 16:17:24 srv-4 sshd\[29833\]: Invalid user admin from 123.21.206.157
Aug  1 16:17:24 srv-4 sshd\[29833\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.21.206.157
Aug  1 16:17:26 srv-4 sshd\[29833\]: Failed password for invalid user admin from 123.21.206.157 port 51615 ssh2
...
2019-08-02 04:31:49
123.207.233.84 attack
SSH bruteforce (Triggered fail2ban)
2019-08-02 04:25:04
177.11.113.143 attack
Try access to SMTP/POP/IMAP server.
2019-08-02 04:11:45
218.92.0.208 attackbots
Aug  1 15:14:03 xtremcommunity sshd\[13128\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.208  user=root
Aug  1 15:14:05 xtremcommunity sshd\[13128\]: Failed password for root from 218.92.0.208 port 26401 ssh2
Aug  1 15:14:08 xtremcommunity sshd\[13128\]: Failed password for root from 218.92.0.208 port 26401 ssh2
Aug  1 15:14:10 xtremcommunity sshd\[13128\]: Failed password for root from 218.92.0.208 port 26401 ssh2
Aug  1 15:21:55 xtremcommunity sshd\[13341\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.208  user=root
...
2019-08-02 03:51:47
201.148.247.142 attackbotsspam
Try access to SMTP/POP/IMAP server.
2019-08-02 04:18:30
87.181.245.86 attackbotsspam
Aug  1 15:09:41 pl3server sshd[1394535]: Bad protocol version identification '' from 87.181.245.86 port 40134
Aug  1 15:09:59 pl3server sshd[1394624]: Invalid user pi from 87.181.245.86
Aug  1 15:10:01 pl3server sshd[1394624]: Failed password for invalid user pi from 87.181.245.86 port 60660 ssh2
Aug  1 15:10:01 pl3server sshd[1394624]: Connection closed by 87.181.245.86 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=87.181.245.86
2019-08-02 04:26:33

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