Suricata 是一个网络入侵检测和阻止引擎，由开放信息安全基金会以及它说支持的提供商说开发。该引擎是多线程的，内置 IPv6 的支持，可加载预设规则，支持 Barnyard 和 Barnyard2 工具。
新版本改进：
1. Support for the ASN1 keyword was added.
2. Support for the ERF file format was added.
3. Rule profiling support was added.
4. An SSLv2 and SSLv3 parser were added.
5. Many bugs were fixed.
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