id summary reporter owner description type status component version resolution keywords cc guest host 8835 Unable to download VBoxGuestAdditions ISO behind proxy depaloan "Trying to download VBoxGuestAdditions ISO behind a (authenticated) proxy fails. It seems VirtualBox is unable to retrieve proxy settings from the desktop environment (GNOME 2.30); setting a HTTP_PROXY environment variable inside a terminal and executing VirtualBox from it doesn't change the situation. " defect closed guest additions VirtualBox 4.0.4 duplicate Windows Linux