ftp.ntua.gr:/debian/dists/stretch-backports/non-free/by-hash/SHA256/?C=S&O=A 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec 19-Jun-2017 23:59   20   
[   ] d70f2235aeee27e0b5158a7ae963eded409c164bea9c074f09e02a70aaeda6d8 28-Mar-2020 23:00   55K  
[   ] 5d5cd1d99c80324b646e28778007a11454a449cf791ee8480bf071e38d75c861 13-Jul-2020 11:00   57K  
[   ] 756a8d34ced3a66adfb9e09a2111140a221441c75e4803b6a932c346179a28b7 13-Jul-2020 17:02   61K  
[   ] df999715c2e0c1a4533b38e6547598e85e18fe62b9b6c81231645705f351839c 13-Jul-2020 17:02   67K  
[   ] 6f10a9bee99d03c6f307543d26e6f507c2b8c863e63e7a44d41cc269a8205308 28-Mar-2020 23:00  103K  
[   ] a2bf9e1435dcae76aaf5f4fb282b797b41dfefe4669e81d2cec764cf2a4c309d 13-Jul-2020 17:02  120K
Apache/2.2 Server at debian.noc.ntua.gr Port 80