ftp.ntua.gr:/debian/dists/stretch/main/installer-ppc64el/20170615/images/netboot/?C=N&O=A 
Icon  Name                                                          Last modified      Size  
[DIR] Parent Directory                                                                   -   
[DIR] debian-installer/                                             15-Jun-2017 11:34    -   
[   ] mini.iso                                                      15-Jun-2017 11:34   40M  
[   ] netboot.tar.gz                                                15-Jun-2017 11:34   23M
Apache/2.2 Server at debian.noc.ntua.gr Port 80