ftp.ntua.gr:/ubuntu/dists/focal-proposed/main/signed/linux-adv-uno420-amd64/current/?C=N&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] SHA256SUMS                                       14-Dec-2020 21:23   80   
[   ] SHA256SUMS.gpg                                   14-Dec-2020 21:23  1.5K  
[   ] signed.tar.gz                                    14-Dec-2020 21:23   18M
Apache/2.2 Server at ftp.ntua.gr Port 80