ftp.ntua.gr:/ubuntu/dists/groovy-updates/main/uefi/grub2-amd64/2.04-1ubuntu35.4/?C=D&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] SHA256SUMS                                       22-Feb-2021 11:53  650   
[   ] SHA256SUMS.gpg                                   22-Feb-2021 11:53  819   
[DIR] control/                                         22-Feb-2021 11:53    -   
[   ] gcdx64.efi                                       22-Feb-2021 11:53  1.4M  
[   ] gcdx64.efi.signed                                22-Feb-2021 11:53  1.4M  
[   ] grubnetx64.efi                                   22-Feb-2021 11:53  1.4M  
[   ] grubnetx64.efi.signed                            22-Feb-2021 11:53  1.4M  
[   ] grubx64.efi                                      22-Feb-2021 11:53  1.6M  
[   ] grubx64.efi.signed                               22-Feb-2021 11:53  1.6M  
[   ] version                                          22-Feb-2021 11:53   17
Apache/2.2 Server at ftp.ntua.gr Port 80