ftp.ntua.gr:/mirror/ubuntu/dists/trusty-backports/main/binary-amd64/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] Release                                          15-Dec-2017 11:49  106   
[   ] Packages.gz                                      15-Dec-2017 11:49   14K  
[   ] Packages.bz2                                     15-Dec-2017 11:49   13K
Apache/2.2 Server at ftp.grnet.gr Port 80