如何恢復iptables的默認設置

　/usr/local/sbin/iptables -P INPUT ACCEPT　　/usr/local/sbin/iptables -P FORWARD ACCEPT　　/usr/local/sbin/iptables -P OUTPUT ACCEPT　　#　　# reset the default policies in the nat table.　　#　　/usr/local/sbin/iptables -t nat -P PREROUTING ACCEPT　　/usr/local/sbin/iptables -t nat -P POSTROUTING ACCEPT　　/usr/local/sbin/iptables -t nat -P OUTPUT ACCEPT　　#　　# flush all the rules in the filter and nat tables.　　#　　/usr/local/sbin/iptables -F　　/usr/local/sbin/iptables -t nat -F　　#　　# erase all chains that's not default in filter and nat table.　　#　　/usr/local/sbin/iptables -X　　/usr/local/sbin/iptables -t nat -X'