### /etc/apt/sources.list
# Make sure to replace XX with your local mirror language/country code
# Make sure to replace CODENAME with the release codename you are running

### Main Sources
deb	http://ftp.XX.debian.org/debian/		CODENAME			main contrib non-free non-free-firmware

### Security Updates
deb	http://security.debian.org/debian-security	CODENAME-security		main contrib non-free non-free-firmware

### Software Updates
deb	http://ftp.XX.debian.org/debian/		CODENAME-updates		main contrib non-free non-free-firmware
deb	http://ftp.XX.debian.org/debian/		CODENAME-backports		main contrib non-free non-free-firmware
deb	http://ftp.XX.debian.org/debian/		CODENAME-proposed-updates	main contrib non-free non-free-firmware