ftp.ntua.gr:/ubuntu/dists/focal-updates/main/installer-amd64/current/legacy-images/cdrom/?C=D&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] debian-cd_info.tar.gz                            01-Feb-2021 10:23  2.3M  
[   ] initrd.gz                                        01-Feb-2021 10:23   17M  
[   ] vmlinuz                                          01-Feb-2021 10:23   11M  
[DIR] xen/                                             01-Feb-2021 10:23    -
Apache/2.2 Server at ftp.ntua.gr Port 80