Its been a while, but in the past i have used 
icecast and been VERY happy.  It is stable and 
should be available via apt-get, but in case here 
is the url for the packages.

http://packages.debian.org/stable/sound/icecast-server.html

Here is a slightly dated tutorial:

http://pcquest.ciol.com/content/linux/10006601.asp

If you grab the debs and read the install files it 
should be simple enough to setup without the tutorial.

Derek

David P. Schwartz wrote:

> What does it take to set up a Linux server (Debian) to support streaming
> audio?  Pointers to some sites that discuss this stuff would be handy.
> Right now, I just want to experiment with some ideas I've got, so I don't
> need anything like RealAudio or other costly solutions.
> 
> -David Schwartz
> 
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