Debian, entries for the sources.list, apt-get
From Andreida
deb http://ftp.de.debian.org/debian/ stable main contrib non-free deb-src http://ftp.de.debian.org/debian/ stable main contrib non-free deb http://security.debian.org/ stable/updates main contrib deb-src http://security.debian.org/ stable/updates main contrib
List of sites: https://www.debian.org/mirror/list