#Debian8 Base Snapshot deb [check-valid-until=no] http://snapshot.debian.org/archive/debian/20200708T204754Z/ jessie main contrib non-free deb-src [check-valid-until=no] http://snapshot.debian.org/archive/debian/20200708T204754Z/ jessie main contrib non-free #Debian Security/ #deb http://snapshot.debian.org/archive/debian-security/20200708T204823Z/ jessie/updates main contrib non-free #deb-src http://snapshot.debian.org/archive/debian-security/20200708T204823Z/ jessie/updates main contrib non-free