I'm relatively new to Linux so I built myself a Suse 9.1 machine. So far I have Samba up and running and GCC etc installed but now I have come to try and sort out a firewall. I looked at the inbuilt Suse firewall but it confuses me. All I can see is that it allows you to block ports etc but I cannot find where you can configure certain IP addresses or subnets through on a port but block for all other ip's.
In slight desparation I have started looking at FWBuilder which looks to have a GUI interface which looks to be what I am after. The only trouble is when I try and install the rpm packages on my machine using Yast it goes through to the Yast screen but doesn't appear to actually install anything. If I run a search of the machine using Yast sure enough the FWBuilder components are nowhere to be seen.
I have doublechecked I have downloaded the suse 9.1 rpm files and also used multiple download sources for the files. There are no dependency errors coming up when i try and install the rpm's.
Am I doing anything completely stupid?
Any help gratefully appreciated.