Groups > comp.lang.python > #12049

Re: Order of addresses returned by socket.gethostbyname_ex()

From	Nobody <nobody@nowhere.com>
Subject	Re: Order of addresses returned by socket.gethostbyname_ex()
Date	2011-08-22 20:12 +0100
Message-Id	<pan.2011.08.22.19.12.15.775000@nowhere.com>
Newsgroups	comp.lang.python
References	<356978ef-e9c1-48fd-bb87-849fe8e27a79@p5g2000vbl.googlegroups.com>
Organization	Zen Internet

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On Sun, 21 Aug 2011 23:37:42 -0700, Tomas Lidén wrote:

> In what order are the addresses returned by socket.gethostbyname_ex()?
> 
> We know that gethostbyname() is indeterministic but hope that
> gethostbyname_ex() has a specified order.

It doesn't. In fact, the order of the IP addresses may have been
deliberately randomised (by the resolver and/or DNS server) in order to
provide a simple form of load balancing.

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Order of addresses returned by socket.gethostbyname_ex() Tomas Lidén <tomas@liden-privat.net> - 2011-08-21 23:37 -0700
  Re: Order of addresses returned by socket.gethostbyname_ex() Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-22 18:15 +1000
    Re: Order of addresses returned by socket.gethostbyname_ex() Tomas Lidén <tomas.liden.privat@gmail.com> - 2011-08-22 02:06 -0700
      Re: Order of addresses returned by socket.gethostbyname_ex() Cameron Simpson <cs@zip.com.au> - 2011-08-22 20:06 +1000
        Re: Order of addresses returned by socket.gethostbyname_ex() Tomas Lidén <tomas.liden.privat@gmail.com> - 2011-08-22 04:29 -0700
          Re: Order of addresses returned by socket.gethostbyname_ex() Cameron Simpson <cs@zip.com.au> - 2011-08-23 08:46 +1000
      Re: Order of addresses returned by socket.gethostbyname_ex() Chris Angelico <rosuav@gmail.com> - 2011-08-22 11:36 +0100
        Re: Order of addresses returned by socket.gethostbyname_ex() Tomas Lidén <tomas.liden.privat@gmail.com> - 2011-08-22 04:32 -0700
      Re: Order of addresses returned by socket.gethostbyname_ex() Roy Smith <roy@panix.com> - 2011-08-22 07:37 -0400
        Re: Order of addresses returned by socket.gethostbyname_ex() Paul Kölle <paul@subsignal.org> - 2011-08-22 14:18 +0200
          Re: Order of addresses returned by socket.gethostbyname_ex() Tomas Lidén <tomas.liden.privat@gmail.com> - 2011-08-22 05:33 -0700
      Re: Order of addresses returned by socket.gethostbyname_ex() Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-23 02:09 +1000
  Re: Order of addresses returned by socket.gethostbyname_ex() Roy Smith <roy@panix.com> - 2011-08-22 07:26 -0400
    Re: Order of addresses returned by socket.gethostbyname_ex() Tomas Lidén <tomas.liden.privat@gmail.com> - 2011-08-22 04:39 -0700
      Re: Order of addresses returned by socket.gethostbyname_ex() Roy Smith <roy@panix.com> - 2011-08-22 08:14 -0400
      Re: Order of addresses returned by socket.gethostbyname_ex() Terry Reedy <tjreedy@udel.edu> - 2011-08-22 13:34 -0400
  Re: Order of addresses returned by socket.gethostbyname_ex() Nobody <nobody@nowhere.com> - 2011-08-22 20:12 +0100

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