ftp.ntua.gr:/debian/dists/stable-backports/non-free-firmware/by-hash/SHA256/?C=M&O=A 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec 19-Jul-2022 05:01   20
Apache/2.2 Server at ftp.ntua.gr Port 80