> For the complete documentation index, see [llms.txt](https://jianghua-yjhs-organization.gitbook.io/in-depth-understanding-of-node.js-core-ideas-and/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jianghua-yjhs-organization.gitbook.io/in-depth-understanding-of-node.js-core-ideas-and/chapter9.md).

# Net

* [Socket](/in-depth-understanding-of-node.js-core-ideas-and/chapter9/chapter9-1.md)
* [Building Applications](/in-depth-understanding-of-node.js-core-ideas-and/chapter9/chapter9-2.md)
* [Encryption](/in-depth-understanding-of-node.js-core-ideas-and/chapter9/chapter9-3.md)