ftp.ntua.gr:/ubuntu/dists/focal-security/main/signed/linux-gke-amd64/5.4.0-1041.43/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    14-Apr-2021 17:38   18M  
[   ] SHA256SUMS.gpg                                   14-Apr-2021 17:38  1.5K  
[   ] SHA256SUMS                                       14-Apr-2021 17:38   80
Apache/2.2 Server at ftp.ntua.gr Port 80