How to identify that you're running under a VM?

Question

Is there a way to identify, from within a VM, that your code is running inside a VM?

I guess there are more or less easy ways to identify specific VM systems, especi

Answer 1

In Linux systems, you can try to search for common files on /proc.

Example, the existente of /proc/vz/ tell you is a OpenVZ.

Here's a full guide to detect VM's environent under Linux without have to "drink pills" :)