# Page Not Found

The URL `di-22-zhang-bian-cheng-yu-kai-fa/di-22.5-jie-java-huan-jing-de-pei-zhi` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [12.2 特定语言的区域配置](https://book.bsdcn.org/di-12-zhang-ben-di-hua-yu-shu-ru-fa/di-12.2-jie-te-ding-yu-yan-de-qu-yu-pei-zhi.md)
- [22.1 防火墙概论](https://book.bsdcn.org/di-22-zhang-fang-huo-qiang/di-22.1-jie-fang-huo-qiang-gai-lun.md)
- [12.1 本地化环境变量](https://book.bsdcn.org/di-12-zhang-ben-di-hua-yu-shu-ru-fa/di-12.1-jie-ben-di-hua-huan-jing-bian-liang.md)
- [32.2 Java 开发环境](https://book.bsdcn.org/di-32-zhang-kai-fa-huan-jing/di-32.2-jie-java-kai-fa-huan-jing.md)
- [22.5 Fail2Ban（基于 IPFW、PF 与 IPF）](https://book.bsdcn.org/di-22-zhang-fang-huo-qiang/di-22.5-jie-fail2ban-ji-yu-ipfw-pf-yu-ipf.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://book.bsdcn.org/di-12-zhang-ben-di-hua-yu-shu-ru-fa/di-12.2-jie-te-ding-yu-yan-de-qu-yu-pei-zhi.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://book.bsdcn.org/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://book.bsdcn.org/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/di-12-zhang-ben-di-hua-yu-shu-ru-fa/di-12.2-jie-te-ding-yu-yan-de-qu-yu-pei-zhi.md`).

You may also use `Accept: text/markdown` header for content negotiation.