ftp.ntua.gr:/debian/dists/sid/main/installer-arm64/20190623/images/u-boot/?C=S&O=D 
Icon  Name                                                    Last modified      Size  
[DIR] Parent Directory                                                             -   
[   ] teres_i.img.gz                                          23-Jun-2019 22:53  301K  
[   ] pinebook.img.gz                                         23-Jun-2019 22:53  301K  
[   ] pine64_plus.img.gz                                      23-Jun-2019 22:53  298K  
[   ] a64-olinuxino.img.gz                                    23-Jun-2019 22:53  298K  
[   ] orangepi_zero_plus2.img.gz                              23-Jun-2019 22:53  297K  
[   ] nanopi_neo2.img.gz                                      23-Jun-2019 22:53  297K
Apache/2.2 Server at debian.noc.ntua.gr Port 80