???????iptables??Unix???胁??????????????????????????iptables写??chkconfig????????????????/etc/init.d/??rc.d/init.d???锟�?????iptables????????service????????????????
????Usage: /etc/init.d/iptables {start|stop|reload|restart|condrestart|status|panic|save}
????????????5?????????
????start???????????????????????
????stop????????????
????restart???????????????????????????
????save?????妫�?????娴�????????校?
????status????????????????????
????????3?????锟�?
????reload???????效????restart?????????渭????????????
????condrestart??????????iptables???????椋�??restart?械???????????????????械??????????????????????????????????????校?condrestart?????????????????panic??????????????斜??????????DROP??????????????????????????????????????????????????