# Change server port numbers

By default, the Jetty Server uses _port 7070._

If for any reason you need to change this, you can do so by editing the _bladerunner.conf_ file, in the _conf_ folder of your _BladeRunner_ installation, which (like the _conf_ folder itself), is created when you run the [bladerunner command](bladerunner-installing-bladerunner.md#startbladerunnerdashboard).

The file is in YAML format, and the unmodified version will contain the following line, commented out by a hash character:

```
#jettyPort: 7070
```

To alter the port number, remove the `#` at the beginning of the line, and modify the parameter to the port you want to use instead.