Quote:
I tried using the built in firewall in Mandrake 9.2 When I enable it, my internet stops working. How do I find out what ports I need to have open, and how do I open them.
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I am not familiar with this mandrake firwall either...but I want to explain that you don't want to start opening ports. Iptables (which I am certain this mandrake firewall is a front-end for) is a stateful filter. What this means is that it is able to tell from the packets if it is a response to a packet sent from your own box. This is what you need to enable. The iptables rule would be:
Code:
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
What this rule does is allow any packets that are established or related to a packet/transaction initiated from _your_ box back through the firewall.
If you start opening ports wantonly then you are just opening it up to everyone.
I am afraid I cannot help translate this into mandrake firewall. There must be some sort of docs for it, yeah?