I have setup one computer on our network as the file server. Because Internet here in Tanzania is both slow and expensive I would like that one system to download all the updates and then the other 10 computers on the network to get those update files from the server. I'm a bit of a noobie to Ubuntu, but really want to learn how to get this working smoothly so as to help other NGOs and schools here in Tanzania. Brendon
Great news, this is a simple setup.
1) On the system you want to host all of the files, install "squid-deb-proxy"
2) On all of the systems (including the system from step 1), install "squid-deb-proxy-client"
That's it, now all of your clients will use the one system to get updates/install packages, and if that system doesn't have the file it (the server) will go out and get the file.
On your server, install the package apt-cacher-ng.
If you have a firewall, open port 3142 to client machines.
On each client, run
to enable the caching.
If you need to disable caching on a client for some reason, you can simply run