ftp.ntua.gr:/ubuntu/dists/xenial/restricted/source/by-hash/SHA256/?C=S&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 32eaccfdb648e66ea5f7a81030e0f63faca154709692d..> 07-Apr-2016 13:43  103   
[   ] b19d242858e44999bba8e6f7572b080917e43fc6c85d9..> 15-Apr-2016 06:24  4.7K  
[   ] eab6ecc010c17ed01d96a28aa215b2884b22643c23616..> 15-Apr-2016 06:24  5.1K
Apache/2.2 Server at ftp.ntua.gr Port 80