ftp.ntua.gr:/mirror/opera/desktop/42.0.2393.517/mac/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] Opera_42.0.2393.517_Setup.dmg                    26-Jan-2017 15:23   65M  
[   ] Opera_42.0.2393.517_Autoupdate.tar.xz            26-Jan-2017 15:23   46M
Apache/2.2 Server at ftp.grnet.gr Port 80