ftp.ntua.gr:/debian/dists/stretch/main/installer-amd64/20170615/images/netboot/xen/?C=S&O=A 
Icon  Name                                                                Last modified      Size  
[DIR] Parent Directory                                                                         -   
[TXT] debian.cfg                                                          15-Jun-2017 11:34  6.1K  
[   ] vmlinuz                                                             15-Jun-2017 11:34  4.0M  
[   ] initrd.gz                                                           15-Jun-2017 11:34   46M
Apache/2.2 Server at debian.noc.ntua.gr Port 80