From: Nathaniel Talbott <nathaniel@...>
Date: 2003-09-26T22:48:58+09:00
Subject: Re: TCPSocket.gethostbyname difficulties

ts [mailto:decoux@moulon.inra.fr] wrote:

> N> I'm trying to use TCPSocket.gethostbyname to verify that a given 
> N> domain actually exists in DNS.
> 
>  you can't, just try
> 
> moulon% host xxxxyyyyttttuuu.com
> xxxxyyyyttttuuu.com has address 64.94.110.11
> moulon% 
> 
> moulon% host aaazertyuiop.com
> aaazertyuiop.com has address 64.94.110.11
> moulon% 

Right, this is due to Verisign's irritating site-finder thingy, but I can
filter those results out if I want to. What about the following, though:

  ntalbott@proxytest:~$ host cancer.org
  cancer.org has address 209.135.47.118
  cancer.org has address 0.0.0.0
  ntalbott@proxytest:~$ ruby -rsocket -e 'p
TCPSocket::gethostbyname("cancer.org")'
  -e:1:in `gethostbyname': host not found (SocketError)
          from -e:1

Can I make that work?


Nathaniel

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