ftp.ntua.gr:/mirror/ubuntu/dists/focal/restricted/binary-amd64/by-hash/SHA256/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] f641509ad1e4ab977debf3d852d1a7e47a02e9d941867..> 23-Apr-2020 03:49   33K  
[   ] d8f70ca1fe1aaab95538a2c4d45118be407c0c479a247..> 18-Oct-2019 13:50  101   
[   ] b0a82fdbd27a4ea03ddb0fc18349ba31e189949c383cf..> 23-Apr-2020 03:49   21K
Apache/2.2 Server at ftp.grnet.gr Port 80