ftp.ntua.gr:/debian/dists/jessie/non-free/debian-installer/binary-all/by-hash/SHA256/?C=M&O=D 
Icon  Name                                                               Last modified      Size  
[DIR] Parent Directory                                                                        -   
[   ] 57dc8a3a78c23967920dc9cc8fe9f55c985c5c3f616063676845e1cfbf574cd1   06-Jul-2019 12:01  103   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec   19-Jun-2017 23:59   20   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275   18-Jun-2017 11:11   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80