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 <<>> 104.21.53.36
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 17810
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.53.36.			IN	A

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

;; Query time: 32 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:36:25 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 36.53.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 36.53.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
81.22.45.29 attackbotsspam
Sep 26 09:11:36 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.29 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=13377 PROTO=TCP SPT=55785 DPT=6006 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-09-26 16:08:23
223.4.70.106 attackspam
Sep 24 14:56:24 this_host sshd[18665]: Invalid user wisnu from 223.4.70.106
Sep 24 14:56:24 this_host sshd[18665]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.4.70.106 
Sep 24 14:56:26 this_host sshd[18665]: Failed password for invalid user wisnu from 223.4.70.106 port 34766 ssh2
Sep 24 14:56:26 this_host sshd[18665]: Received disconnect from 223.4.70.106: 11: Bye Bye [preauth]
Sep 24 15:07:07 this_host sshd[18807]: Invalid user ftpadmin from 223.4.70.106
Sep 24 15:07:07 this_host sshd[18807]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.4.70.106 
Sep 24 15:07:10 this_host sshd[18807]: Failed password for invalid user ftpadmin from 223.4.70.106 port 55556 ssh2
Sep 24 15:07:10 this_host sshd[18807]: Received disconnect from 223.4.70.106: 11: Bye Bye [preauth]
Sep 24 15:10:43 this_host sshd[18908]: Invalid user byte from 223.4.70.106
Sep 24 15:10:43 this_host sshd[18908]: pam_un........
-------------------------------
2019-09-26 16:02:34
178.33.236.23 attackbotsspam
Sep 26 10:21:03 vps01 sshd[550]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.33.236.23
Sep 26 10:21:05 vps01 sshd[550]: Failed password for invalid user ka from 178.33.236.23 port 58132 ssh2
2019-09-26 16:33:03
23.129.64.215 attackspam
Sep 25 20:29:54 php1 sshd\[17398\]: Invalid user 22 from 23.129.64.215
Sep 25 20:29:54 php1 sshd\[17398\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.215
Sep 25 20:29:57 php1 sshd\[17398\]: Failed password for invalid user 22 from 23.129.64.215 port 43215 ssh2
Sep 25 20:29:59 php1 sshd\[17398\]: Failed password for invalid user 22 from 23.129.64.215 port 43215 ssh2
Sep 25 20:30:02 php1 sshd\[17398\]: Failed password for invalid user 22 from 23.129.64.215 port 43215 ssh2
2019-09-26 16:05:10
49.235.222.199 attackspambots
Sep 25 22:24:35 auw2 sshd\[21497\]: Invalid user admin from 49.235.222.199
Sep 25 22:24:35 auw2 sshd\[21497\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.222.199
Sep 25 22:24:37 auw2 sshd\[21497\]: Failed password for invalid user admin from 49.235.222.199 port 47738 ssh2
Sep 25 22:30:17 auw2 sshd\[21933\]: Invalid user jacsom from 49.235.222.199
Sep 25 22:30:17 auw2 sshd\[21933\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.222.199
2019-09-26 16:40:53
197.48.42.231 attackspambots
Chat Spam
2019-09-26 16:18:54
95.9.113.12 attack
email spam
2019-09-26 16:38:05
14.102.115.130 attackbotsspam
2019-09-26 00:54:23 H=(luxuryclass.it) [14.102.115.130]:49421 I=[192.147.25.65]:25 sender verify fail for : Unrouteable address
2019-09-26 00:54:23 H=(luxuryclass.it) [14.102.115.130]:49421 I=[192.147.25.65]:25 F= rejected RCPT : Sender verify failed
2019-09-26 00:54:24 H=(luxuryclass.it) [14.102.115.130]:49421 I=[192.147.25.65]:25 F= rejected RCPT : Sender verify failed
...
2019-09-26 16:13:48
91.209.54.54 attackbotsspam
Sep 26 06:14:53 game-panel sshd[4607]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.209.54.54
Sep 26 06:14:55 game-panel sshd[4607]: Failed password for invalid user skafreak from 91.209.54.54 port 39157 ssh2
Sep 26 06:19:40 game-panel sshd[4779]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.209.54.54
2019-09-26 16:29:58
175.211.112.66 attack
SSH bruteforce (Triggered fail2ban)
2019-09-26 16:21:31
108.62.57.78 attackbotsspam
Sql/code injection probe
2019-09-26 16:11:06
5.196.29.194 attackspam
Sep 26 10:03:46 s64-1 sshd[7963]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.29.194
Sep 26 10:03:48 s64-1 sshd[7963]: Failed password for invalid user up from 5.196.29.194 port 44443 ssh2
Sep 26 10:08:44 s64-1 sshd[7999]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.196.29.194
...
2019-09-26 16:24:58
81.28.107.160 attackspambots
Sep 26 04:50:30 h2421860 postfix/postscreen[4874]: CONNECT from [81.28.107.160]:58838 to [85.214.119.52]:25
Sep 26 04:50:30 h2421860 postfix/dnsblog[4882]: addr 81.28.107.160 listed by domain b.barracudacentral.org as 127.0.0.2
Sep 26 04:50:30 h2421860 postfix/dnsblog[4880]: addr 81.28.107.160 listed by domain ix.dnsbl.xxxxxx.net as 127.0.0.2
Sep 26 04:50:30 h2421860 postfix/dnsblog[4880]: addr 81.28.107.160 listed by domain zen.spamhaus.org as 127.0.0.3
Sep 26 04:50:30 h2421860 postfix/dnsblog[4878]: addr 81.28.107.160 listed by domain Unknown.trblspam.com as 185.53.179.7
Sep 26 04:50:36 h2421860 postfix/postscreen[4874]: DNSBL rank 7 for [81.28.107.160]:58838
Sep x@x


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=81.28.107.160
2019-09-26 16:04:41
103.8.149.78 attackspam
Sep 25 20:44:07 sachi sshd\[12780\]: Invalid user geffrey from 103.8.149.78
Sep 25 20:44:07 sachi sshd\[12780\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.8.149.78
Sep 25 20:44:09 sachi sshd\[12780\]: Failed password for invalid user geffrey from 103.8.149.78 port 27201 ssh2
Sep 25 20:53:00 sachi sshd\[13423\]: Invalid user tino from 103.8.149.78
Sep 25 20:53:00 sachi sshd\[13423\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.8.149.78
2019-09-26 16:21:58
178.128.144.227 attackbotsspam
Sep 26 10:00:19 bouncer sshd\[11046\]: Invalid user ff from 178.128.144.227 port 37726
Sep 26 10:00:19 bouncer sshd\[11046\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.144.227 
Sep 26 10:00:22 bouncer sshd\[11046\]: Failed password for invalid user ff from 178.128.144.227 port 37726 ssh2
...
2019-09-26 16:15:44

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