[ubuntu-us-ut] Pass-through Cache for Apt?

[Charles Curley]

I will be converting several machines from Fedora to Ubuntu. I have in
the past mirrored Fedora repositories on my main server. I know there
is software to do that for deb packages. But I'd like to try something
a bit different:

Is there a way to cache deb packages on a server? To only pull in
packages actually requested? Something like: Machine A asks the cache
for package foo. It isn't in cache, so the cache goes to the
appropriate upstream repository, gets it and feeds it to A as it comes
in. Later, Machine B asks for foo. It's in cache, so the sever simply
tosses it to B without going on the Internet.

The problem with using SQUID or other proxy servers is that the cache
would have to refresh meta-information (e.g. lists of available
packages) much more aggressively than it would the packages
themselves. Or is there a way to do that?

-- 

Charles Curley                  /"\    ASCII Ribbon Campaign
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