ftp.ntua.gr:/debian/dists/stretch-backports/main/binary-amd64/by-hash/SHA256/?C=M&O=A 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] cff89b67429815017c15f0cf43c09b4d71cb19534bf430658cf0b1b65ba41922 18-Jun-2017 11:28  177   
[   ] 531e9bf9e6c2b35d08e68fb803cb1ea7b211ce81a32c158e6bc5c5f6fab7e491 09-Nov-2020 15:59  771K  
[   ] 608e7ec8c65aa46a241b625e5d1caf95a3400f52af414addbdbe5862b7b1ee16 09-Nov-2020 15:59  598K
Apache/2.2 Server at debian.noc.ntua.gr Port 80