ftp.ntua.gr:/debian/dists/stretch-backports/contrib/debian-installer/binary-s390x/by-hash/SHA256/ 
Icon  Name                                                                           Last modified      Size  
[DIR] Parent Directory                                                                                    -   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275               18-Jun-2017 11:11   32   
[   ] 0ad2784c0b59dc35954b55653c45a92e5368acf0a5e5a2f4a96fd9c386557f52               18-Jun-2017 11:28  180   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec               19-Jun-2017 23:59   20
Apache/2.2 Server at ftp.grnet.gr Port 80