ftp.ntua.gr:/ubuntu/dists/xenial-proposed/main/signed/linux-gcp-amd64/current/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    31-Mar-2021 15:53   15M  
[   ] SHA256SUMS.gpg                                   31-Mar-2021 15:53  916   
[   ] SHA256SUMS                                       31-Mar-2021 15:53   80
Apache/2.2 Server at ftp.ntua.gr Port 80