ftp.ntua.gr:/ubuntu/dists/groovy/restricted/source/by-hash/SHA256/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 4e783beb50f75510c96d54d02a3652c5a9d96bfe682f9..> 21-Oct-2020 20:15   14K  
[   ] 2639c0c7abb4bcca13702b967351ecfbf4e2da83db674..> 21-Oct-2020 20:15   16K  
[   ] 1d89f7ef7fd1f3dfb5909cde197a907b03458a1a9c82e..> 24-Apr-2020 16:54  103
Apache/2.2 Server at ftp.ntua.gr Port 80