What does ubuntu use for a firewall?

[Bruce Marshall]

On Thursday 26 April 2007, Knute Johnson wrote:
> I know that you weren't asking me but ubuntu does something screwy to
> my clock when I go back to XP, it is off about 6 hours.  I'm in PDT
> so that isn't the GMT difference.

If you are running both XP and linux, your clock should be set to local time, 
not GMT.   I suspect it *IS* due to zone differences.    3 (time diff) * 2 = 
6  so the answer is there somewhere.