ftp.ntua.gr:/debian/dists/oldstable-updates/non-free/by-hash/SHA256/?C=S&O=A 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec 06-Jul-2019 14:14   20
Apache/2.2 Server at ftp.ntua.gr Port 80