ftp.ntua.gr:/ubuntu/dists/trusty-updates/main/uefi/grub2-amd64/current/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] version                                          09-Apr-2019 22:53   23   
[   ] grubx64.efi.signed                               09-Apr-2019 22:53  949K  
[   ] grubx64.efi                                      09-Apr-2019 22:53  948K  
[   ] grubnetx64.efi.signed                            09-Apr-2019 22:53  1.0M  
[   ] grubnetx64.efi                                   09-Apr-2019 22:53  1.0M  
[   ] gcdx64.efi.signed                                09-Apr-2019 22:53  1.0M  
[   ] gcdx64.efi                                       09-Apr-2019 22:53  1.0M  
[DIR] control/                                         09-Apr-2019 22:53    -   
[   ] SHA256SUMS.gpg                                   09-Apr-2019 22:53  916   
[   ] SHA256SUMS                                       09-Apr-2019 22:53  650
Apache/2.2 Server at ftp.ntua.gr Port 80