ftp.ntua.gr:/ubuntu/dists/focal-backports/universe/binary-amd64/by-hash/SHA256/?C=D&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 37bb3e03865b7f0ada16b7767b197d73dd55de0120fcc..> 16-Mar-2021 08:36  4.2K  
[   ] 1499242b193a3b601504a3ea0e7452708bc871e197d86..> 16-Mar-2021 08:36  3.9K  
[   ] 0238c6810065a5e01e18125ab981a6ad1d887fa1705e2..> 18-Oct-2019 13:50  109
Apache/2.2 Server at ftp.ntua.gr Port 80