ftp.ntua.gr:/ubuntu/dists/trusty-updates/main/signed/linux-lts-xenial-amd64/current/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    14-May-2019 23:03   26M  
[   ] SHA256SUMS.gpg                                   14-May-2019 23:03  916   
[   ] SHA256SUMS                                       14-May-2019 23:03   80
Apache/2.2 Server at ftp.ntua.gr Port 80