ftp.ntua.gr:/debian/dists/stretch-updates/contrib/binary-all/by-hash/SHA256/?C=N&O=D 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec 19-Jun-2017 23:59   20   
[   ] 1e78864a57b48c52d850650476c41fed531026f0c0ac3a694417a96353e9ac93 18-Jun-2017 11:28   91   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275 18-Jun-2017 11:11   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80