ftp.ntua.gr:/ubuntu/dists/xenial-security/universe/debian-installer/binary-amd64/by-hash/SHA256/?C=D&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 977feb8e6fc144eb6cea580e5fe4aea2772c51b676b56..> 29-Apr-2021 14:28   97K  
[   ] bc8d7990c6d1f2200587ddf2d7ce282e470897aab5971..> 29-Apr-2021 14:28   80K
Apache/2.2 Server at ftp.ntua.gr Port 80