ftp.ntua.gr:/ubuntu/dists/groovy-backports/main/cnf/by-hash/SHA256/?C=N&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 0bc799ddd5f73ca5a7a630072f522d0172d9431fa4b59..> 27-Apr-2020 11:37  112   
[   ] 48c62840678d7153a7ce7892731ea973850ca38e8f515..> 27-Apr-2020 11:37  112   
[   ] 519367f2e12a189fa8df024372905a754bd4c24c05903..> 23-Nov-2020 12:25  112   
[   ] 6c87e9dda081b405e791acdb9e13e012e27f67813e6a2..> 27-Apr-2020 11:37  112   
[   ] 797c45bceb3d15af5338508ecdd7fb6795578e7a373aa..> 27-Apr-2020 11:37  112   
[   ] add7685f749930ccd3a7bb67145536fdd252f77d937f4..> 27-Apr-2020 11:37  112   
[   ] e3df295860acb2e01d82d771866dd168080113a5dd431..> 27-Apr-2020 11:37  112
Apache/2.2 Server at ftp.ntua.gr Port 80