deb https://deb.debian.org/debian buster main deb https://snapshot.debian.org/archive/debian/20201021T000000Z buster main deb https://security.debian.org/debian-security buster/updates main deb https://snapshot.debian.org/archive/debian-security/20201021T000000Z buster/updates main deb https://deb.debian.org/debian buster-updates main deb https://snapshot.debian.org/archive/debian/20201021T000000Z buster-updates main