ftp.ntua.gr:/debian/dists/stretch/main/installer-i386/20170615/images/netboot/xen/?C=N&O=D 
Icon  Name                                                               Last modified      Size  
[DIR] Parent Directory                                                                        -   
[   ] vmlinuz                                                            15-Jun-2017 11:34  3.5M  
[   ] initrd.gz                                                          15-Jun-2017 11:34   45M  
[TXT] debian.cfg                                                         15-Jun-2017 11:34  6.1K
Apache/2.2 Server at ftp.grnet.gr Port 80