ftp.ntua.gr:/debian/dists/Debian9.13/main/installer-armhf/20170615/images/netboot/gtk/?C=N&O=A 
Icon  Name                                                                   Last modified      Size  
[DIR] Parent Directory                                                                            -   
[   ] initrd.gz                                                              15-Jun-2017 11:34   35M  
[   ] vmlinuz                                                                15-Jun-2017 11:34  3.5M
Apache/2.2 Server at ftp.ntua.gr Port 80