ftp.ntua.gr:/mirror/ubuntu/dists/groovy/main/signed/shim-canonical-amd64/2/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    01-Sep-2020 23:43  842K  
[   ] SHA256SUMS.gpg                                   01-Sep-2020 23:43  819   
[   ] SHA256SUMS                                       01-Sep-2020 23:43   80
Apache/2.2 Server at ftp.ntua.gr Port 80