deb https://deb.debian.org/debian buster main deb https://snapshot.debian.org/archive/debian/20201216T000000Z buster main deb http://security.debian.org/debian-security buster/updates main deb https://snapshot.debian.org/archive/debian-security/20201216T000000Z buster/updates main deb http://deb.debian.org/debian buster-updates main deb https://snapshot.debian.org/archive/debian/20201216T000000Z buster-updates main