ftp.ntua.gr:/debian/dists/stretch-backports/main/Contents-amd64.diff/by-hash/SHA256/?C=N&O=A 
Icon  Name                                                              Last modified      Size  
[DIR] Parent Directory                                                                       -   
[   ] f767b23558bd875798abd67ee94cb6fad5e9d7bf48f4ec54ae64a817dd8f146e  09-Dec-2020 10:04   27K
Apache/2.2 Server at ftp.grnet.gr Port 80