Published at LXer:
If you have more than one Debian or Ubuntu Linux machines in your home or office, you know that when you upgrade them you have to download the same file twice, resulting in a waste of bandwidth, and more important TIME!. Well that should not be that way, you may use apt-cacher which is a .deb package proxy that will take care of the versions of the downloaded files, and keep the latest in the disk for your upgrades.
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