ftp.ntua.gr:/mirror/ubuntu/dists/focal-backports/universe/cnf/?C=M&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] by-hash/                                         25-Oct-2019 08:28    -   
[   ] Commands-i386.xz                                 07-Sep-2020 21:17  192   
[   ] Commands-amd64.xz                                16-Mar-2021 09:17  224
Apache/2.2 Server at ftp.ntua.gr Port 80