ftp.ntua.gr:/ubuntu/dists/xenial/main/source/by-hash/SHA256/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] cd4de9b666f08e418e4ba56c87504e625ab69cb254eaa..> 21-Apr-2016 18:47  847K  
[   ] 0a914a1083319d18b0336b7035733fdf48cd11a110ee1..> 21-Apr-2016 18:47  1.1M  
[   ] 920522af733380530b90c9ee1d541b85d6104b2d7f0ec..> 07-Apr-2016 13:43   97
Apache/2.2 Server at ftp.ntua.gr Port 80