I use VirtualBox to host a Windows 7 virtual machine on my Kubuntu system. This is mainly for running Photoshop Elements.

A common requirement in Elements is to pass alt-click through, for example when chosing a source area when doing a clone stamp. By default, this doesn't work for me …

It is a good idea, for security reasons, if your webserver does not report its version number in http headers and error messages.

To turn off reporting of nginx's server version, set the following in the http section of your nginx config.

server_tokens   off;