ftp.ntua.gr:/mirror/opera/desktop/31.0.1889.99/mac/?C=M&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] Opera_31.0.1889.99_Autoupdate.tar.xz             03-Aug-2015 18:07   37M  
[   ] Opera_31.0.1889.99_Setup.dmg                     03-Aug-2015 18:07   52M
Apache/2.2 Server at ftp.ntua.gr Port 80