I have a simple question regarding “How DNS works” on IpFire?
My config is only red and green interfaces, on the red interface I have a static IP and a gateway IP configured.
But why I do not have to configure a DNS IP, why knows IpFire how to handle a DNS request?
My default FW behavior is block forwarding and and accept outgoing trafic. I have for a very small amount of ports I will use rules in the FW configured, also for DNS. Furtherthrough I have a check at “use applied DNS from ISP” !? But why? I have a Static address and DHCP configured … hm … ?
However, I have no idea how my DNS is working on my FW, which scares me!
But I see that the DNS requests frem green going into the FW (black), and the FW (black) is talking with many servers in the www (red) regarding the DNS request - thst’s what I assume due to dozents of 53 requests listed on page connections.
As info: I swapped from IpCop to Ipfire sinc a week - on the ‘Cop’ I didn’t had this behavior. DNS was forwarded to my DSL-router - that’s it, simple and understandable … for me
May be someone of the experts can bring me ontrack and explain briefly how it works or where is my flaw in understanding DNS on IpFire?
Ones I have a brief intro I will self study this topic to avoid to stress with basics here
Many thanks ahead !