ftp.ntua.gr:/ubuntu/dists/bionic-updates/main/signed/linux-gcp-edge-amd64/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         13-Aug-2019 15:08    -   
[DIR] 5.0.0-1013.13~18.04.1/                           13-Aug-2019 15:08    -
Apache/2.2 Server at ftp.ntua.gr Port 80