ftp.ntua.gr:/ubuntu/dists/groovy-updates/restricted/binary-i386/by-hash/SHA256/?C=N&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 115e4f05036411ad982b49572c3d3a096f7fc2f25d489..> 26-Apr-2021 04:17   19K  
[   ] 5d87648593ba8726cb52cfd2a991b9020aec45c2e595a..> 24-Apr-2020 16:54  109   
[   ] eac074bd92d06821c75c3c5808c4c787981bc803688ce..> 26-Apr-2021 04:17   16K
Apache/2.2 Server at ftp.ntua.gr Port 80