# Page Not Found

The URL `di-27-zhang-dtrace/27.3.-kai-qi-dtrace-zhi-chi.html` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [28.3.开启 DTrace 支持](https://handbook.bsdcn.org/di-28-zhang-dtrace/28.3.-kai-qi-dtrace-zhi-chi.md)
- [28.5.使用 DTrace](https://handbook.bsdcn.org/di-28-zhang-dtrace/28.5.-shi-yong-dtrace.md)
- [28.2.实现上的差异](https://handbook.bsdcn.org/di-28-zhang-dtrace/28.2.-shi-xian-shang-de-cha-yi.md)
- [28.4.为内核外部模块启用 DTrace](https://handbook.bsdcn.org/di-28-zhang-dtrace/28.4.-nei-he-wai-bu-mo-kuai.md)
- [28.1.概述](https://handbook.bsdcn.org/di-28-zhang-dtrace/28.1.-gai-shu.md)

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Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
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```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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://handbook.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://handbook.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-28-zhang-dtrace/28.3.-kai-qi-dtrace-zhi-chi.md`).

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