On Wed, 4 Apr 2012, Thomas Woerner wrote:

...

I have been looking at firewalld in Fedora 17 in order to understand how to convert an iptables command that I use in a script into a firewalld one. The iptables command that I'm using is: iptables -I INPUT -p udp -i $INTERFACE --dport 67 -j ACCEPT

With firewalld-cmd I can do: firewall-cmd --add --port=67/udp

But there doesn't seem to be a way for me to specify an interface as well? As in, I only want to open UDP port 67 on a specific network interface, not all interfaces.

Are you setting up interfaces by hand or are you using NetworkManager or the network service?

I am setting up the interface by hand (using ifconfig).

Create a customized zone and use firewall-cmd to add th einterface to the zone: firewall-cmd --zone=<zone> --add --interface=<interface>

This seems to do what I was looking for, once I created an new zone xml file.

I didn't see a way to create a zone dynamically (e.g., using firewall-cmd). Is this correct?

Thanks, Scott