[Yum] Caching yum data for multiple machines.

[Adam Lelean (bean)]

I am in an office with multiple machines all wanting updates from 
various yum repositories, is there some way to cache data so that 
all machines could use the cache.

I could change the cachedir to make it available to all machines, 
but am concerned it may not be safe if 2 machines both tried to 
access the cache simultaneously.

I could use a proxy server, but each repository has multiple URLs 
in the baseurl, and the multiple URLs will defeat the cache in 
the proxy server. I could remove some of the URLs from the 
baseurl, but then may have problems with availability.

I am reluctant to mirror the repositories, since only a small 
number of rpm's are required from each repository, and I don't 
want to hold extra data unnecessarily.

Is there some standard way to do this ?, sorry if this is a FAQ, 
but I did check  the FAQ first.

Thanks in advance
Adam Lelean