iptables Fedora 16

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http://forums.fedoraforum.org – Hi, Am attempting to configure SSH on port 22 on Fedora 16. 2 things: Have enabled port 22 in iptables: -A INPUT -m state –state NEW -m tcp -p tcp –dport 22 -j ACCEPT Now I can connect to port 22 but I had to reboot the PC for this to work - Can I not just restart or update iptables to enable this or do I have to restart every tine I make a change in iptables? I tried 'systemctl restart iptable.service' BUT iptables is not a service (or is it??). Also, I set 'root permissions' to NO in the sshd.config but can still login through ssh as root?? Stop and restarted the ssh.serv (HowTos)