Prevent thunar network access

By default thunar can access your network. to secure/prevent this network access for a public kiosk, use the command below.

$ sudo chmod 000 /usr/share/gvfs/mounts/network.mount

And if you want to put it back:

$ sudo chmod 644 /usr/share/gvfs/mounts/network.mount

You need to restart your computer in order to apply the change.