ftp.ntua.gr:/debian/dists/bullseye/main/installer-armhf/20210731/images/cdrom/?C=M&O=D 
Icon  Name                                                         Last modified      Size  
[DIR] Parent Directory                                                                  -   
[   ] vmlinuz                                                      31-Jul-2021 07:20  4.7M  
[   ] initrd.gz                                                    31-Jul-2021 07:20   12M  
[   ] debian-cd_info.tar.gz                                        31-Jul-2021 07:20  5.2M
Apache/2.2 Server at debian.noc.ntua.gr Port 80