Comment 6 for bug 377039

Here is a proposed diff for updating the keeping-safe docs on firewall usage, based on bodhi's feedback and suggestions. The material for firestarter is still there (slightly modified), and I added in mention of UFW and simple directions on using Gufw. Also gave links to the UFW and Gufw community docs pages which contain valuable information. Finally there is additional mentioning of using nmap to test ports in a new section called "Testing the firewall and monitoring network traffic". This section can be expanded on in the future if desired.

The serverguide already mentions UFW, so I didn't make any changes in firewall documentation there.

I hope we can get this approved and committed before the Karmic string freeze.