ftp.ntua.gr:/ubuntu/dists/bionic-updates/main/installer-amd64/current/images/cdrom/?C=N&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] debian-cd_info.tar.gz                            05-Aug-2020 15:43  1.7M  
[   ] initrd.gz                                        05-Aug-2020 15:43   16M  
[   ] vmlinuz                                          05-Aug-2020 15:43  8.0M  
[DIR] xen/                                             05-Aug-2020 15:43    -
Apache/2.2 Server at ftp.ntua.gr Port 80