Example apt configuration

 # The morsnet local mirror
 deb file:/morsnet/wichert/debian/archive potato mirror local
 deb file:/morsnet/wichert/debian/archive woody mirror local
 
 # Dutch mirror
 deb http://ftp.nl.debian.org/debian potato main contrib non-free
 deb-src http://ftp.nl.debian.org/debian potato main contrib non-free
 deb http://ftp.nl.debian.org/debian woody main contrib non-free
 deb-src http://ftp.nl.debian.org/debian woody main contrib non-free
 
 ## Non-US
 deb http://non-us.debian.org/debian-non-US potato/non-US main contrib non-free
 deb-src http://non-us.debian.org/debian-non-US potato/non-US main contrib non-free
 deb http://non-us.debian.org/debian-non-US woody/non-US main contrib non-free
 deb-src http://non-us.debian.org/debian-non-US woody/non-US main contrib non-free
 
 ## Security updates
 deb http://security.debian.org/ potato/updates main contrib non-free
 deb-src http://security.debian.org/ potato/updates main contrib non-free