Most of our computers run on linux, actually on debian based distros like ubuntu. To make installing and updating faster we have an apt proxy installed.
An apt proxy fetches files from remote repositories when needed, and caches them for local use. So it also saves bandwidth, which was very important before we had a fiber channel connection.
There are different apt proxies available, like apt-cacher, apt-cacher-ng, squid-deb-proxy or approx, which is the one we are using. It's easy to set up and works very well.
$ apt-get install approx
and the config file is
/etc/approx/approx.conf:
ubuntu http://archive.ubuntu.com/ubuntu
ubuntu-extras http://extras.ubuntu.com/ubuntu
ubuntu-partner http://archive.canonical.com/ubuntu
ubuntu-security http://security.ubuntu.com/ubuntu
debian http://ftp.debian.org/debian
debian-security http://security.debian.org/debian-security
Usually you only need to add your repositories. Of course there are other things that can be changed, like the port, or debugging. Just see $ man approx
Once it's running you can set up the client side.
So edit /etc/apt/sources appropriately. It could look like this:
deb http://proxy:9999/ubuntu precise main restricted multiverse universe
deb http://proxy:9999/ubuntu precise-security main restricted multiverse universe
deb http://proxy:9999/secure precise-security main restricted multiverse universe
deb http://proxy:9999/partner precise partner
Then run
$ apt-get update
That's mainly it. By the way, there are two apt related packages, that are very helpful.
apticron - it keeps you informed by email, if updates are available.
cron-apt - it downloads packages to your machine, and even installs them if you configure it that way.
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