ftp.ntua.gr:/ubuntu/dists/trusty-updates/main/installer-amd64/current/images/vivid-netboot/ubuntu-installer/amd64/?C=D&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] pxelinux.cfg/                                    04-Mar-2019 09:51    -   
[   ] pxelinux.0                                       04-Mar-2019 09:51   26K  
[   ] linux                                            04-Mar-2019 09:51  6.3M  
[   ] initrd.gz                                        04-Mar-2019 09:51   39M  
[DIR] boot-screens/                                    04-Mar-2019 09:51    -
Apache/2.2 Server at ftp.ntua.gr Port 80