On Fri, 13 May 2005, Bill Tangren wrote:
Jessica Zhu wrote:Hi,
I tried to customize and set up firewall using iptables on Red Hat Enterprise Linux ES release 3. The file /etc/sysconfig/iptables got edited. After I finished editing, I restarted service using /etc/init.d/iptables restart or service iptables restart. However, though it's got successfully restarted, when I checked the status, none of my editing taking effection. It's weired. For example, the default chain INPUT, OUTPUT and FORWARD all are ACCEPT, down in new iptables I edited, it's like as follows,
*filter :INPUT DROP :FORWARD DROP :OUTPUT ACCEPT [0:0]
But nothing take effection after iptables got restarted. What happened?
Jessica
You need to save the changes:
# service iptables save
before you stop and restart the service.
Actually, that's not right. If he's editing /etc/sysconfig/iptables, and saving that file, the changes he made are already saved.
Running service iptables save will only cause the system to save the rules that are already running, in memory.
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