ftp.ntua.gr:/debian/dists/oldoldstable/main/installer-armhf/20190702/images/u-boot/Firefly-RK3288/?C=N&O=A 
Icon  Name                                                                    Last modified      Size  
[DIR] Parent Directory                                                                             -   
[   ] Firefly-RK3288.sdcard.img.gz                                            02-Jul-2019 01:39  265K  
[   ] u-boot.rksd.gz                                                          02-Jul-2019 01:39  265K
Apache/2.2 Server at debian.noc.ntua.gr Port 80