ftp.ntua.gr:/ubuntu/dists/focal/main/uefi/grub2-amd64/2.04-1ubuntu25/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] grubx64.efi.signed                               14-Apr-2020 23:38  1.6M  
[   ] grubx64.efi                                      14-Apr-2020 23:38  1.6M  
[   ] grubnetx64.efi.signed                            14-Apr-2020 23:38  1.4M  
[   ] grubnetx64.efi                                   14-Apr-2020 23:38  1.4M  
[   ] gcdx64.efi.signed                                14-Apr-2020 23:38  1.4M  
[   ] gcdx64.efi                                       14-Apr-2020 23:38  1.4M  
[   ] SHA256SUMS.gpg                                   14-Apr-2020 23:38  1.5K  
[   ] SHA256SUMS                                       14-Apr-2020 23:38  650   
[   ] version                                          14-Apr-2020 23:38   15   
[DIR] control/                                         14-Apr-2020 23:38    -
Apache/2.2 Server at ftp.ntua.gr Port 80