How to close firewall in Fedora

valid atfer restart
open： chkconfig iptables on
close： chkconfig iptables off   or  /sbin/chkconfig --level 2345 iptables off

2)  valid immediately and invalide after restart

 by service
open： service iptables start
close： service iptables stop

by iptables

check status of firewall：
/etc/init.d/iptables status

close firewall for now：
/etc/init.d/iptables stop

restart iptables:
/etc/init.d/iptables restart