ftp.ntua.gr:/ubuntu/dists/focal-proposed/main/signed/linux-gkeop-amd64/current/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    24-Apr-2021 02:43   18M  
[   ] SHA256SUMS.gpg                                   24-Apr-2021 02:43  1.5K  
[   ] SHA256SUMS                                       24-Apr-2021 02:43   80
Apache/2.2 Server at ftp.ntua.gr Port 80