ftp.ntua.gr:/ubuntu/dists/bionic-proposed/main/installer-amd64/current/images/netboot/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] mini.iso                                         03-Aug-2020 11:58   76M  
[   ] boot.img.gz                                      03-Aug-2020 11:58   64M  
[   ] netboot.tar.gz                                   03-Aug-2020 11:58   64M  
[   ] ldlinux.c32                                      03-Aug-2020 11:58  113K  
[   ] pxelinux.0                                       03-Aug-2020 11:58   41K  
[DIR] xen/                                             03-Aug-2020 11:58    -   
[DIR] ubuntu-installer/                                03-Aug-2020 11:58    -   
[DIR] pxelinux.cfg/                                    03-Aug-2020 11:58    -
Apache/2.2 Server at ftp.ntua.gr Port 80