ftp.ntua.gr:/ubuntu/dists/xenial-backports/restricted/binary-amd64/by-hash/SHA256/?C=D&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 1ecf8ede6a1ae61b641204572f1da419db07863163992..> 18-Sep-2017 07:43   64   
[   ] d7ec5bd2184f48b74301082535c3242b98696f5d5874b..> 19-May-2016 23:26  112   
[   ] e7ab72b8f37c7c9c9f6386fb8e3dfa40bf6fe4b678767..> 19-May-2016 23:26   40
Apache/2.2 Server at ftp.ntua.gr Port 80