Twitter.com 奇怪的 WHOIS：发生了什么？

Question

我试过在谷歌上搜索这个，但我找不到答案，这是我能想象得到的唯一地方。

如果我做 whois twitter.com，那么我会得到一个非常奇怪的回应。如果是广告，那是我见过的最奇怪的广告地方。

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

   Server Name: TWITTER.COM.ZEN.THE.BEST.WEBHOSTING.AT.WWW.FATUCH.COM
   IP Address: 209.126.190.70
   Registrar: DIRECTI INTERNET SOLUTIONS PVT. LTD. D/B/A PUBLICDOMAINREGISTRY.COM
   Whois Server: whois.PublicDomainRegistry.com
   Referral URL: http://www.PublicDomainRegistry.com

   Server Name: TWITTER.COM.GET.ONE.MILLION.DOLLARS.AT.WWW.UNIMUNDI.COM
   IP Address: 209.126.190.71
   Registrar: DIRECTI INTERNET SOLUTIONS PVT. LTD. D/B/A PUBLICDOMAINREGISTRY.COM
   Whois Server: whois.PublicDomainRegistry.com
   Referral URL: http://www.PublicDomainRegistry.com

有没有人知道这里发生了什么，为什么 unimundi.com 和 fatuch.com 在 twitter 的 whois 中投放广告？

Answer 1

这只是一些注册人利用 whois 默认包含主机和域条目这一事实所采用的技巧。额外的匹配来自主机（名称服务器）条目。您可以明确要求域条目以避免主机匹配：

$ whois domain twitter.com

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

   Domain Name: TWITTER.COM
   Registrar: NETWORK SOLUTIONS, LLC.
   Whois Server: whois.networksolutions.com
   Referral URL: http://www.networksolutions.com
   Name Server: NS1.P34.DYNECT.NET
   Name Server: NS2.P34.DYNECT.NET
   Name Server: NS3.P34.DYNECT.NET
   Name Server: NS4.P34.DYNECT.NET
   Status: clientTransferProhibited
   Updated Date: 10-mar-2011
   Creation Date: 21-jan-2000
   Expiration Date: 21-jan-2018

>>> Last update of whois database: Tue, 03 May 2011 09:47:54 UTC <<<

...等等...

编辑：顺便说一句，您还可以在查询末尾使用三个点 (...) 强制进行部分匹配。这会混淆 linux whois 客户端，因为它无法自动确定域，因此您必须明确告诉它使用哪个 whois 服务器：

$ whois -h whois.verisign-grs.com "nameserver twitter.com..."

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

TWITTER.COM.ZEN.THE.BEST.WEBHOSTING.AT.WWW.FATUCH.COM
TWITTER.COM.GET.ONE.MILLION.DOLLARS.AT.WWW.UNIMUNDI.COM

To single out one record, look it up with "xxx", where xxx is one of the
of the records displayed above. If the records are the same, look them up
with "=xxx" to receive a full display for each record.

>>> Last update of whois database: Tue, 03 May 2011 10:20:07 UTC <<<