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 of America (the)

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 <<>> 21.20.54.100
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16567
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;21.20.54.100.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025121400 1800 900 604800 86400

;; Query time: 14 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Dec 14 16:45:10 CST 2025
;; MSG SIZE  rcvd: 105
Host info
Host 100.54.20.21.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 100.54.20.21.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
132.232.77.85 attack
Invalid user acct from 132.232.77.85 port 53966
2020-09-25 05:21:15
128.199.123.220 attackspambots
Time:     Thu Sep 24 19:33:57 2020 +0000
IP:       128.199.123.220 (SG/Singapore/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 24 19:29:26 activeserver sshd[2393]: Invalid user scs from 128.199.123.220 port 54979
Sep 24 19:29:28 activeserver sshd[2393]: Failed password for invalid user scs from 128.199.123.220 port 54979 ssh2
Sep 24 19:32:18 activeserver sshd[12164]: Invalid user minecraft from 128.199.123.220 port 29732
Sep 24 19:32:20 activeserver sshd[12164]: Failed password for invalid user minecraft from 128.199.123.220 port 29732 ssh2
Sep 24 19:33:55 activeserver sshd[17564]: Invalid user ftptest from 128.199.123.220 port 61610
2020-09-25 05:21:45
117.50.7.14 attack
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth): user=root
2020-09-25 05:26:35
189.33.175.6 attackspambots
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):
2020-09-25 05:05:34
111.74.11.82 attack
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):
2020-09-25 05:27:43
54.39.152.32 attackspam
54.39.152.32 - - [24/Sep/2020:20:54:45 +0100] "POST /wp-login.php HTTP/1.1" 200 2863 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
54.39.152.32 - - [24/Sep/2020:20:54:47 +0100] "POST /wp-login.php HTTP/1.1" 200 2844 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
54.39.152.32 - - [24/Sep/2020:20:54:48 +0100] "POST /wp-login.php HTTP/1.1" 200 2844 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-09-25 04:55:48
139.199.165.189 attack
$f2bV_matches
2020-09-25 05:17:37
60.53.117.234 attack
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):
2020-09-25 04:55:28
117.86.10.32 attackspambots
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth): user=root
2020-09-25 05:26:03
68.183.80.42 attackbotsspam
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):
2020-09-25 04:54:31
178.32.196.243 attackspam
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth): user=root
2020-09-25 05:09:11
36.156.154.218 attackspambots
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):
2020-09-25 05:00:07
201.122.212.15 attackspam
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth):
2020-09-25 05:04:47
123.157.219.83 attack
Invalid user jenkins from 123.157.219.83 port 15422
2020-09-25 05:22:37
118.24.83.41 attackbots
Coordinated SSH brute-force attack from different IPs. pam_unix(sshd:auth): user=root
2020-09-25 05:25:43

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