AM
# deb cdrom:[Debian GNU/Linux 9.3.0 _Stretch_ - Official amd64 NETINST 20171209-12:10]/ stretch main
# deb cdrom:[Debian GNU/Linux 9.3.0 _Stretch_ - Official amd64 NETINST 20171209-12:10]/ stretch main
deb http://deb.debian.org/debian/ stretch main contrib non-free
deb-src http://deb.debian.org/debian/ stretch main contrib non-free
deb http://security.debian.org/debian-security/ stretch/updates main contrib non-free
deb-src http://security.debian.org/debian-security/ stretch/updates main contrib non-free
# stretch-updates, previously known as 'volatile'
deb http://deb.debian.org/debian/ stretch-updates main contrib non-free
deb-src http://deb.debian.org/debian/ stretch-updates main contrib non-free