VU scripts当你使用它在包的级别上跟踪什么样的网络信息被发送和接受时，检测你的应用。
VU scripts monitor your application while you use it and track what network information is sent and received at the packet level.
如果您想亲自看看软件包是什么样的，那么请从 Debian 站点（请参阅本文后面的 参考资料中的链接）下载一些软件包，然后运行 ar -x packagename.deb 。
If you want to see what a package looks like for yourself, download a few packages from the Debian site (see the link in the Resources later in this article) and run ar -x packagename.deb.
二是在数据包与入侵规则进行模式匹配时，使用什么样的模式匹配算法来快速准确地检测出入侵行为。
The other is which pattern match algorithm can be used to detect intrusion quickly and accurately when the packet matching intrusion rules.
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