ftp.ntua.gr:/mirror/ubuntu/dists/focal-proposed/main/installer-amd64/current/legacy-images/netboot/ubuntu-installer/amd64/ 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] boot-screens/                                    30-Jan-2021 00:58    -   
[   ] initrd.gz                                        30-Jan-2021 00:58   54M  
[   ] linux                                            30-Jan-2021 00:58   11M  
[   ] pxelinux.0                                       30-Jan-2021 00:58   42K  
[DIR] pxelinux.cfg/                                    30-Jan-2021 00:58    -
Apache/2.2 Server at ftp.grnet.gr Port 80