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update serve documentation

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josh rotenberg 2021-05-07 20:29:01 -07:00
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guide/src/cli/serve.md
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# The serve command
The serve command is used to preview a book by serving it over HTTP at
`localhost:3000` by default. Additionally it watches the book's directory for
The serve command is used to preview a book by serving it via HTTP at
`localhost:3000` by default:
```bash
mdbook serve
```
The `serve` command watches the book's `src` directory for
changes, rebuilding the book and refreshing clients for each change. A websocket
connection is used to trigger the client-side refresh.
@ -19,22 +25,12 @@ mdbook serve path/to/book
#### Server options
`serve` has four options: the HTTP port, the WebSocket port, the HTTP hostname
to listen on, and the hostname for the browser to connect to for WebSockets.
For example: suppose you have an nginx server for SSL termination which has a
public address of 192.168.1.100 on port 80 and proxied that to 127.0.0.1 on port
8000\. To run use the nginx proxy do:
The `serve` hostname defaults to `localhost`, and the port defaults to 3000. Either option can be specified on the command line:
```bash
mdbook serve path/to/book -p 8000 -n 127.0.0.1 --websocket-hostname 192.168.1.100
mdbook serve path/to/book -p 8000 -n 127.0.0.1
```
If you were to want live reloading for this you would need to proxy the
websocket calls through nginx as well from `192.168.1.100:<WS_PORT>` to
`127.0.0.1:<WS_PORT>`. The `-w` flag allows for the websocket port to be
configured.
#### --open
When you use the `--open` (`-o`) flag, mdbook will open the book in your