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

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On Mon, Aug 22, 2011 at 11:06 AM, Cameron Simpson <cs@zip.com.au> wrote:
> What if you queried your routing table instead? Usually there's just one
> default route, and hopefully it would be configured to use the "best"
> interface.
>

I wouldn't necessarily trust even this, on Windows. I've lately had
the most insane trouble getting my XP laptop to function properly as a
proxy - LAN connection has the default gateway, wifi has only
192.168.* - and Windows kept on trying to send DNS queries out on the
wireless connection, and then wondered why it didn't get a result.

Explicit is better than implicit. Instead of using the order, have a
config file that chooses the one(s) you want by name or IP address. Of
course, if you're on Unix/Linux, you can use the interface name (eth0,
eth1, etc) with a fair degree of reliability.

ChrisA

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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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