# cat /etc/apt/sources.list
#deb file:///cdrom/ sarge main
deb http://mirrors.kernel.org/debian/ stable main
deb-src http://mirrors.kernel.org/debian/ stable main
deb http://security.debian.org/ stable/updates main
deb http://mirrors.kernel.org/debian/ testing main
deb-src http://mirrors.kernel.org/debian/ testing main
deb http://security.debian.org/ testing/updates main
deb http://http.us.debian.org/debian stable main non-free contrib
deb http://security.debian.org/ stable/updates main contrib non-free