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: Australia

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 <<>> 203.16.54.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 13627
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;203.16.54.21.			IN	A

;; AUTHORITY SECTION:
.			29	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025021102 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Feb 12 11:51:14 CST 2025
;; MSG SIZE  rcvd: 105
Host info
Host 21.54.16.203.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.54.16.203.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
187.190.236.88 attackspam
Invalid user hadoop from 187.190.236.88 port 41274
2020-09-22 21:30:38
206.189.210.235 attackspambots
2020-09-22T16:24:31.665155mail.standpoint.com.ua sshd[18135]: Invalid user coder from 206.189.210.235 port 49672
2020-09-22T16:24:31.668002mail.standpoint.com.ua sshd[18135]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=206.189.210.235
2020-09-22T16:24:31.665155mail.standpoint.com.ua sshd[18135]: Invalid user coder from 206.189.210.235 port 49672
2020-09-22T16:24:33.438699mail.standpoint.com.ua sshd[18135]: Failed password for invalid user coder from 206.189.210.235 port 49672 ssh2
2020-09-22T16:28:15.850873mail.standpoint.com.ua sshd[18690]: Invalid user smbuser from 206.189.210.235 port 51176
...
2020-09-22 21:29:50
62.113.241.50 attackspam
prod11
...
2020-09-22 21:28:43
119.126.115.86 attackspam
2020-09-21 UTC: (137x) - admin(4x),admin7,apache,bin,bkpuser,bot,csserver,customerservice,debian,deploy(3x),florian,ftp,ftpadmin,guest,hadoop,info(2x),jenkins(2x),kfserver,kwinfo,mcftp,myftp,nagios,odoo,opentsp,oracle(2x),ots,postgres(3x),pruebas,root(80x),sophia,sysadmin,terrariaserver,test(5x),test1,tester,testftp(2x),testuser,ts,ts3user,ubuntu(2x),user,user7
2020-09-22 21:42:04
203.212.216.217 attackspambots
port scan and connect, tcp 23 (telnet)
2020-09-22 21:25:53
178.34.190.34 attackbotsspam
Fail2Ban Ban Triggered
2020-09-22 21:45:43
176.56.237.229 attackspambots
web-1 [ssh] SSH Attack
2020-09-22 21:36:39
71.6.233.73 attackspambots
Blocked by Sophos UTM Network Protection . /    / proto=6  .  srcport=49152  .  dstport=49152  .     (3229)
2020-09-22 21:17:52
60.167.176.184 attackspambots
$f2bV_matches
2020-09-22 21:15:41
31.171.152.137 attack
(From no-replyMum@google.com) Gооd dаy! 
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2020-09-22 21:21:51
129.204.253.70 attack
Sep 22 10:59:31 ourumov-web sshd\[4692\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.204.253.70  user=root
Sep 22 10:59:34 ourumov-web sshd\[4692\]: Failed password for root from 129.204.253.70 port 36528 ssh2
Sep 22 11:07:21 ourumov-web sshd\[5178\]: Invalid user massimo from 129.204.253.70 port 42534
...
2020-09-22 21:39:48
213.230.67.32 attackbots
Sep 22 11:06:46 ns392434 sshd[1552]: Invalid user administrator from 213.230.67.32 port 17974
Sep 22 11:06:46 ns392434 sshd[1552]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.230.67.32
Sep 22 11:06:46 ns392434 sshd[1552]: Invalid user administrator from 213.230.67.32 port 17974
Sep 22 11:06:48 ns392434 sshd[1552]: Failed password for invalid user administrator from 213.230.67.32 port 17974 ssh2
Sep 22 11:17:03 ns392434 sshd[1817]: Invalid user atlas from 213.230.67.32 port 15678
Sep 22 11:17:03 ns392434 sshd[1817]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.230.67.32
Sep 22 11:17:03 ns392434 sshd[1817]: Invalid user atlas from 213.230.67.32 port 15678
Sep 22 11:17:05 ns392434 sshd[1817]: Failed password for invalid user atlas from 213.230.67.32 port 15678 ssh2
Sep 22 11:21:15 ns392434 sshd[1989]: Invalid user nina from 213.230.67.32 port 48394
2020-09-22 21:34:06
178.128.93.251 attack
2020-09-22T15:14:54.106018n23.at sshd[2047373]: Invalid user nz from 178.128.93.251 port 48372
2020-09-22T15:14:55.675228n23.at sshd[2047373]: Failed password for invalid user nz from 178.128.93.251 port 48372 ssh2
2020-09-22T15:26:18.688480n23.at sshd[2057537]: Invalid user tony from 178.128.93.251 port 38442
...
2020-09-22 21:32:24
211.80.102.187 attack
DATE:2020-09-22 15:38:45, IP:211.80.102.187, PORT:ssh SSH brute force auth (docker-dc)
2020-09-22 21:49:38
218.54.251.99 attackbots
Brute-force attempt banned
2020-09-22 21:16:42

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