Firewall configuration ?

[gambit]

Hi,

I've just setup Suse 9 and would like to run a webserver. Im new to linux and need a bit of help. My questons are:

How do I allow connections on port 80 for http access, connections on port 21 for ftp access and on 22 for ssh access?

My webserver is up an running, I can access my default page by typing 127.0.0.1 into my broswer url bar and it works. I also have a domain name setup. I would like to access the servers above by using the domain name of my linux machiene. Eg I would like to enter the url "suse.local" into my browser on my mac and get it to display the default web page.

Thanks

[Dillinger]

There are tons of great firewall options available. There are tons of great iptables tutorials online like http://iptables-tutorial.frozentux.net/, http://www.netfilter.org/documentation/ (official docs) and http://www-106.ibm.com/developerwork...linuxfw-i.html
(requires free registration)If you want to go a simpler route, maybe check out shorewall, its a front end to iptables. Also there are tons of great scripts out there, http://easyfwgen.morizot.net/gen/index.php is a great site for generating firewall scripts. I hope this helps!