ftp.ntua.gr:/debian/dists/stretch-updates/non-free/debian-installer/binary-ppc64el/by-hash/?C=S&O=D 
Icon  Name                                                                    Last modified      Size  
[DIR] Parent Directory                                                                             -   
[DIR] SHA256/                                                                 19-Jun-2017 03:00    -   
[DIR] MD5Sum/                                                                 19-Jun-2017 03:00    -
Apache/2.2 Server at debian.noc.ntua.gr Port 80