Hi I'm new in Ubuntu and i have one question.
In this post: Can I legally use Ubuntu Server to create a commercial web application on Amazon EC2? some one ask "Can Ubuntu Server on Amazon EC2 be used as a host OS for commercial web application?" But my question is:
Can I use Ubuntu as operating system do make my own commercial application (commercial closed license) for an example in Java? Spring? Groovy? Grails? Anything else?