My ISP was blocking ports. I asked them to unblock the ports so now we have set all of the port blocking handling to the router we have here at home.
So my question is, is my system secure? Anything I should be aware of?
And if my computer isn't behind any sort of firewall, just straight connected to the Internet (demilitarized zone?) is it secure? does it impose any security risks?
I'm running ubuntu 12.04 and the others in the house are using windows 7
Btw I have uPnP enabled.
Sorry for being such a noob..