# Securing the Jupyter Notebook server on a DLAMI instance
<a name="setup-jupyter-secure"></a>

To keep your Jupyter Notebook server secure, we recommend setting up a password and creating an SSL certificate for the server. To configure a password and SSL, first [connect to your DLAMI instance](setup-connect.md), and then follow these instructions.

**To secure the Jupyter Notebook server**

1. Jupyter provides a password utility. Run the following command and enter your preferred password at the prompt.

   ```
   $ jupyter notebook password
   ```

   The output will look something like this:

   ```
   Enter password:
   					Verify password:
   					[NotebookPasswordApp] Wrote hashed password to /home/ubuntu/.jupyter/jupyter_notebook_config.json
   ```

1. Create a self-signed SSL certificate. Follow the prompts to fill out your locality as you see fit. You must enter `.` if you wish to leave a prompt blank. Your answers will not impact the functionality of the certificate.

   ```
   $ cd ~
   					$ mkdir ssl
   					$ cd ssl
   					$ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout mykey.key -out mycert.pem
   ```

**Note**  
You might be interested in creating a regular SSL certificate that is third-party signed and does not cause the browser to give you a security warning. This process is much more involved. For more information, see [Securing a notebook server](https://jupyter-notebook.readthedocs.io/en/6.2.0/public_server.html#securing-a-notebook-server) in the Jupyter Notebook user documentation.

**Next step**  
[Starting the Jupyter Notebook server on a DLAMI instance](setup-jupyter-start-server.md)