ftp.ntua.gr:/debian/dists/stretch/main/installer-armhf/current/images/netboot/gtk/?C=M&O=D 
Icon  Name                                                               Last modified      Size  
[DIR] Parent Directory                                                                        -   
[   ] vmlinuz                                                            12-Jul-2020 20:49  3.6M  
[   ] initrd.gz                                                          12-Jul-2020 20:49   36M
Apache/2.2 Server at debian.noc.ntua.gr Port 80