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all with opt lsrr block in log quick all with opt ssrr 以上五句为过滤掉可能会带来安全问题的短数据包或具备路由信息的数据包以及防止非法扫描服务器 pass out on xl0 all pass in on xlo all pass out on xl1 all pass in on xl1 all pass out quick on lo0 all pass in quick on lo0 all 以上为内部网络界面和loopback网络界面可以自由发送和接受数据包 block out on fxp0 all 以上为屏蔽外部网络界面向外发送数据包 block out log on fxp0 from any to 192.168.0.0/16 block out log quick on fxp0 from any to 0.0.0.0/8 block out log quick on fxp0 from any to 169.254.0.0/8 block out log quick on fxp0 from any to 10.0.0.0/8 block out log quick on fxp0 from any to 127.16.0.0/12 block out log quick on fxp0 from any to 127.0.0.0/8 block out log quick on fxp0 from any to 192.0.2.0/24页码:[1] [2] [3] [4] [5] [6] [7] 第3页、共7页 |
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