ftp.ntua.gr:/debian/dists/bullseye/main/installer-amd64/20210731/images/netboot/xen/?C=N&O=A 
Icon  Name                                                                 Last modified      Size  
[DIR] Parent Directory                                                                          -   
[TXT] debian.cfg                                                           31-Jul-2021 07:20  6.1K  
[   ] initrd.gz                                                            31-Jul-2021 07:20   55M  
[   ] vmlinuz                                                              31-Jul-2021 07:20  6.5M
Apache/2.2 Server at debian.noc.ntua.gr Port 80