ftp.ntua.gr:/ubuntu/dists/bionic-security/main/signed/linux-oracle-amd64/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         12-May-2021 12:53    -   
[DIR] 4.15.0-1071.79/                                  12-May-2021 12:53    -   
[DIR] 4.15.0-1070.78/                                  16-Apr-2021 00:19    -   
[DIR] 4.15.0-1069.77/                                  15-Apr-2021 22:00    -
Apache/2.2 Server at ftp.ntua.gr Port 80