ftp.ntua.gr:/ubuntu/dists/trusty-security/main/uefi/grub2-amd64/current/?C=D&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] version                                          15-Dec-2015 22:58   22   
[   ] grubx64.efi.signed                               15-Dec-2015 22:58  935K  
[   ] grubx64.efi                                      15-Dec-2015 22:58  934K  
[   ] grubnetx64.efi.signed                            15-Dec-2015 22:58  1.0M  
[   ] grubnetx64.efi                                   15-Dec-2015 22:58  1.0M  
[   ] gcdx64.efi.signed                                15-Dec-2015 22:58  971K  
[   ] gcdx64.efi                                       15-Dec-2015 22:58  969K
Apache/2.2 Server at ftp.ntua.gr Port 80