我搜索.了很多文章，好像还是没搞明白，请帮忙，谢谢！！！.！！.
*filter
:I.NPUT ACCEPT [0].
:FORWARD ACCEPT .[0] 鲜花
:OUTPUT ACCEPT. [0].
:RH-F.irewall-1-INPUT -. [0].
-A INPUT -j RH-Firewall-1-INPU.T. 汽车
-A FORWARD .-j. RH-Firewall-1-INPUT.
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELA.TED -j AC.CEPT.
-A RH-.Fir.ewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited.
