ftp.ntua.gr:/ubuntu/dists/focal-proposed/main/installer-amd64/current/legacy-images/netboot/?C=S&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] pxelinux.cfg/                                    30-Jan-2021 00:58    -   
[DIR] ubuntu-installer/                                30-Jan-2021 00:58    -   
[DIR] xen/                                             30-Jan-2021 00:58    -   
[   ] pxelinux.0                                       30-Jan-2021 00:58   42K  
[   ] ldlinux.c32                                      30-Jan-2021 00:58  118K  
[   ] netboot.tar.gz                                   30-Jan-2021 00:58   63M  
[   ] boot.img.gz                                      30-Jan-2021 00:58   63M  
[   ] mini.iso                                         30-Jan-2021 00:58   79M
Apache/2.2 Server at ftp.ntua.gr Port 80