ftp.ntua.gr:/ubuntu/dists/trusty-security/main/signed/linux-lts-xenial-amd64/current/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] SHA256SUMS.gpg                                   16-May-2019 10:53  916   
[   ] SHA256SUMS                                       16-May-2019 10:53   80   
[   ] signed.tar.gz                                    16-May-2019 10:53   26M
Apache/2.2 Server at ftp.ntua.gr Port 80