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Best way to cache apt downloads on a LAN?
How to set up an apt-cacher server?

How to update multiple Ubuntu machines in a LAN quickly and efficiently saving network bandwidth?

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marked as duplicate by fossfreedom, Jorge Castro, jrg, Marco Ceppi Jan 3 '12 at 19:53

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2 Answers 2

apt-cacher-ng is a download proxy for software packages. The software packages are downloaded and cached on one of the Ubuntu machines on which the apt-cacher-ng daemon runs and the other Ubuntu machines can contact this machine to get the updates quickly from within the intranet.

More information on how to configure the Ubuntu machines

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In order to save bandwidth, you can use an HTTP proxy like squid. If you have many machines, then you should probably have a chat with a representative from Canonical and have a look at Landscape. Or you can just install openssh-server on all the machines and update via ssh, possibly using a script. How you do all this depends on how many machines you're talking about.

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