ftp.ntua.gr:/ubuntu/dists/focal/main/signed/linux-5.4-amd64/5.4.0-12.15/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    28-Jan-2020 00:28   36M  
[   ] SHA256SUMS.gpg                                   28-Jan-2020 00:28  1.5K  
[   ] SHA256SUMS                                       28-Jan-2020 00:28   80
Apache/2.2 Server at ftp.ntua.gr Port 80