ftp.ntua.gr:/debian/dists/stretch-backports/main/debian-installer/binary-armhf/by-hash/SHA256/?C=M&O=A 
Icon  Name                                                                        Last modified      Size  
[DIR] Parent Directory                                                                                 -   
[   ] 2c15ce3721d30f5e65015b4eba92979f6ceecec217f33835cc86a3fe67fbd9e9            18-Jun-2017 11:28  177   
[   ] a96a38d1c4e4ea07217a7bf2b28ebe5ba97ac2f1aaac31e6a9dfe997c3f8b2cf            16-Oct-2020 17:00   10K  
[   ] f6a095d40cb9975328d9763b81b6b75d3a4316bb4925781ab606f64a7661e020            16-Oct-2020 17:00  9.0K
Apache/2.2 Server at debian.noc.ntua.gr Port 80