ftp.ntua.gr:/ubuntu/dists/bionic/main/uefi/linux-amd64/4.15.0-15.16/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] vmlinuz-4.15.0-15-lowlatency.efi.signed          14-Apr-2018 03:08  7.9M  
[   ] vmlinuz-4.15.0-15-lowlatency.efi                 14-Apr-2018 03:08  7.9M  
[   ] vmlinuz-4.15.0-15-generic.efi.signed             14-Apr-2018 03:08  7.9M  
[   ] vmlinuz-4.15.0-15-generic.efi                    14-Apr-2018 03:08  7.9M  
[   ] SHA256SUMS.gpg                                   14-Apr-2018 03:08  819   
[   ] SHA256SUMS                                       14-Apr-2018 03:08  636   
[   ] flavours                                         14-Apr-2018 03:08   63   
[   ] version                                          14-Apr-2018 03:08   13   
[DIR] control/                                         14-Apr-2018 03:08    -
Apache/2.2 Server at ftp.ntua.gr Port 80