invalid ip addr on hg serve

[TK Soh]

On Thu, Mar 27, 2008 at 1:04 AM, Benoit Boissinot <bboissin at gmail.com> wrote:
>
> On Thu, Mar 27, 2008 at 1:44 AM, TK Soh <teekaysoh at gmail.com> wrote:
>  > I noticed hg serve in Mercurial 1.0 always shows the IP address as 0.0.0.0:
>  >
>  >     % hg version
>  >     Mercurial Distributed SCM (version 1.0)
>  >
>  >     Copyright (C) 2005-2008 Matt Mackall <mpm at selenic.com> and others
>  >     This is free software; see the source for copying conditions. There is NO
>  >     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>  >
>  >     % hg serve -v
>  >     listening at http://XXX.YYYY.net:8000/ (0.0.0.0:8000)
>  >
>  >
>  >  What am I missing?
>
>  It means hg is listening on all interfaces, you can use -a to only
>  listen on localhost
>  for example.

What does 'all interfaces' refer to? Sorry I am not familiar with the concept.