ftp.ntua.gr:/ubuntu/dists/bionic-security/main/signed/linux-amd64/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         12-May-2021 12:54    -   
[DIR] 4.15.0-143.147/                                  12-May-2021 12:54    -   
[DIR] 4.15.0-142.146/                                  16-Apr-2021 00:20    -   
[DIR] 4.15.0-141.145/                                  15-Apr-2021 22:01    -
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