# Custom server example ## How to use Download the example (or clone the repo)[https://github.com/zeit/next.js.git]: ```bash curl https://codeload.github.com/zeit/next.js/tar.gz/master | tar -xz --strip=2 next.js-master/examples/custom-server cd custom-server ``` Install it and run: ```bash npm install npm start ``` Deploy it to the cloud with [now](https://zeit.co/now) ([download](https://zeit.co/download)) ```bash now ``` ## The idea behind the example Most of the times the default Next server will be enough but sometimes you want to run your own server to customize routes or other kind of the app behavior. Next provides a [Custom server and routing](https://github.com/zeit/next.js#custom-server-and-routing) so you can customize as much as you want. The example shows a server that serves the component living in `pages/a.js` when the route `/b` is requested and `pages/b.js` when the route `/a` is accessed. This is obviously a non-standard routing strategy. You can see how this custom routing is being made inside `server.js`.