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DNS Resolution Issue

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Case sensitivity’s an issue for domain names it appears.

For instance:

Command: “nslookup playboy.com 91.239.100.100”
Server:  anycast.censurfridns.dk
Address:  91.239.100.100

Name:    playbOY.com
Address:  204.74.99.100

… Now this IP resolution has propagated to all servers.

And using the IP as the URL, I get a redirection:

redirection

 

I ran the DNS Lookup against a variety of name servers, here’s the results:

Command: "nslookup playboy.com 89.233.43.71"
Server:  ns1.censurfridns.dk
Address:  89.233.43.71

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 91.239.100.100"
Server:  anycast.censurfridns.dk
Address:  91.239.100.100

Name:    playbOY.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 156.154.70.1"
Server:  rdns1.ultradns.net
Address:  156.154.70.1

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 156.154.71.1"
Server:  rdns2.ultradns.net
Address:  156.154.71.1

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 84.200.69.80"
Server:  resolver1.ihgip.net
Address:  84.200.69.80
Aliases:  80.69.200.84.in-addr.arpa

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 84.200.70.40"
Server:  resolver2.ihgip.net
Address:  84.200.70.40
Aliases:  40.70.200.84.in-addr.arpa

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 216.146.35.35"
Server:  resolver1.dyndnsinternetguide.com
Address:  216.146.35.35

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 216.146.36.36"
Server:  resolver2.dyndnsinternetguide.com
Address:  216.146.36.36

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 37.235.1.174"
Server:  resolver1.freedns.zone.powered.by.emerion.com
Address:  37.235.1.174

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 37.235.1.177"
Server:  resolver2.freedns.zone.powered.by.emerion.com
Address:  37.235.1.177

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 8.8.8.8"
Server:  google-public-dns-a.google.com
Address:  8.8.8.8

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 8.8.4.4"
Server:  google-public-dns-b.google.com
Address:  8.8.4.4

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 74.82.42.42"
Server:  ordns.he.net
Address:  74.82.42.42

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 209.244.0.3"
Server:  resolver1.level3.net
Address:  209.244.0.3

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 209.244.0.4"
Server:  resolver2.level3.net
Address:  209.244.0.4

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 208.67.222.222"
Server:  resolver1.opendns.com
Address:  208.67.222.222

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 208.67.220.220"
Server:  resolver2.opendns.com
Address:  208.67.220.220

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 107.150.40.234"
Server:  mail.zee.li
Address:  107.150.40.234

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 50.116.23.211"
Server:  www.eqnic.net
Address:  50.116.23.211

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 109.69.8.51"
Server:  ns.servidordenoms.cat
Address:  109.69.8.51
Aliases:  51.8.69.109.in-addr.arpa

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 195.46.39.39"
Server:  dns1.safedns.com
Address:  195.46.39.39

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 195.46.39.40"
Server:  dns2.safedns.com
Address:  195.46.39.40

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 208.76.50.50"
Server:  ip-50.50.76.208.datasub.com
Address:  208.76.50.50

Name:    playboy.com
Address:  204.74.99.100


------------------------------
Command: "nslookup playboy.com 208.76.51.51"
Server:  ip-51.51.76.208.datasub.com
Address:  208.76.51.51

Name:    playboy.com
Address:  204.74.99.100


------------------------------

Done

Doing a whois resolves to this:

Domain Name: PLAYBOY.COM
Registrar: CSC CORPORATE DOMAINS, INC.
Sponsoring Registrar IANA ID: 299
Whois Server: whois.corporatedomains.com
Referral URL: http://www.cscglobal.com/digitalbrandservices
Name Server: PDNS1.ULTRADNS.NET
Name Server: PDNS2.ULTRADNS.NET
Name Server: PDNS3.ULTRADNS.ORG
Name Server: PDNS4.ULTRADNS.ORG
Name Server: PDNS5.ULTRADNS.INFO
Name Server: PDNS6.ULTRADNS.CO.UK
Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Updated Date: 25-feb-2014
Creation Date: 14-feb-1994
Expiration Date: 15-feb-2015

Same host name, right?

Name server resolution is accurate.

But is propagation working properly?

I suspect not.

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