How to block internet access for wine applications?

Question

Is it possible to prevent specific wine applications or any wine application from accessing the internet? When using certain apps under Windows, they were trying to access the internet from time to time without any obvious reason. I was able to prevent that behaviour with a personal firewall back then. Unfortunately I did not find an application level firewall in Ubuntu up to now. This is especially annoying when I am abroad using data-roaming with my 3G modem. Is there a way to prevent my wine-apps sending or receiving data without my knowledge. Thanks in advance! YSN

Answer 1

There's a nice tutorial on blocking any given program from accessing the Internet on the Ubuntu forums.

It basically involves creating a new group, denying it Internet access, and then running any program you want to restrict as that group ID. So in your case, you would just always run wine using the method described in the tutorial.