linux下的netfilter防火墙配置

ipt1/7http://www.boobooke.com/v/bbk3648ipt2/7http://www.boobooke.com/v/bbk3649ipt3/7http://www.boobooke.com/v/bbk3671ipt4/7http://www.boobooke.com/v/bbk3679ipt5/7http://www.boobooke.com/v/bbk3680ipt6/7http://www.boobooke.com/v/bbk3685ipt7/7http://www.boobooke.com/v/bbk3686