On 7/15/11, hadi motamedi motamedi24@gmail.com wrote:
Dear All I need to put my centos 5.6 server as firewall server in fron of a windows-running node before connecting it to the net. Can you please let me know what stuff do I need to put on my centos server? Thank you
Hadi;
Under most circumstances, CentOS 5.6 should come with the software you need: iptables (and, possibly, iptables-ipv6).
There's a wealth of information about configuring iptables on Google. To get you started, this looks like an interesting overview: http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-fw.html
Also, if you get daring and want to try writing rules for yourself, Mike Harris has a nice template configuration for iptables: http://mharris.ca/iptables/mharris-iptables-example-config-1.2.txt
Read up on iptables, understand the concepts behind it. This is a good thing to take slow if you're not familiar with it. Security is not to be rushed. :)
Cheers, Cody Jackson