Using the APT Cache
From FGARWiki
Go to applications->accessories->terminal. From terminal type:
sudo gedit /etc/apt/sources.list
and press enter. In the new window, click the magnifying glass icon. In the "search for" space type:
us.archive.ubuntu.com
In the "replace with" space type:
10.100.0.137:9999
To check to see if server is up type:
ping 10.100.0.137
In addition to changing the APT source to the local cache, you will need to sudo to install any package. E.g.: mesa-utils (includes glxinfo and glxgears binaries), lm-sensors (includes sensor-detect binary), and flashrom.
To install any package, go to Terminal then type
sudo apt-get install $package