ftp.ntua.gr:/mirror/ubuntu/dists/bionic-security/main/signed/linux-amd64/4.15.0-142.146/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] signed.tar.gz                                    16-Apr-2021 00:20   31M  
[   ] SHA256SUMS.gpg                                   16-Apr-2021 00:20  819   
[   ] SHA256SUMS                                       16-Apr-2021 00:20   80
Apache/2.2 Server at ftp.grnet.gr Port 80