ftp.ntua.gr:/ubuntu/dists/bionic-security/main/signed/linux-gke-5.4-amd64/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         12-May-2021 12:53    -   
[DIR] 5.4.0-1043.45~18.04.1/                           12-May-2021 12:53    -   
[DIR] 5.4.0-1042.44~18.04.1/                           16-Apr-2021 00:20    -   
[DIR] 5.4.0-1040.42~18.04.1/                           15-Apr-2021 22:00    -
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