ftp.ntua.gr:/ubuntu/dists/bionic-security/restricted/source/by-hash/SHA256/?C=N&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 6900121f6f083b0c4a0e7968aa1b831a4715b8cbeba75..> 12-May-2021 11:59   21K  
[   ] 75f91175b742c0c151395a77f7fb2f887b386baac7d95..> 12-May-2021 11:59   18K  
[   ] af4a52d6af78fa467a6843909c63046fac20e358dd17b..> 25-Oct-2017 02:16  112
Apache/2.2 Server at ftp.ntua.gr Port 80