# Quickstart
## Prerequisites
Before installing JupyterHub, you will need:
a Linux/Unix based system
[Python](https://www.python.org/downloads/) 3.5 or greater. An understanding of using [
pip](https://pip.pypa.io/en/stable/) or [conda](https://conda.io/docs/get-started.html) for installing Python packages is helpful.[nodejs/npm](https://www.npmjs.com/). [Install nodejs/npm](https://docs.npmjs.com/getting-started/installing-node), using your operating system’s package manager.
If you are using `conda`, the nodejs and npm dependencies will be installed for you by conda.
If you are using `pip`, install a recent version of [nodejs/npm](https://docs.npmjs.com/getting-started/installing-node). For example, install it on Linux (Debian/Ubuntu) using:
` sudo apt-get install npm nodejs-legacy `The
nodejs-legacypackage installs thenodeexecutable and is currently required for npm to work on Debian/Ubuntu.
TLS certificate and key for HTTPS communication
Domain name
Before running the single-user notebook servers (which may be on the same system as the Hub or not), you will need:
[Jupyter Notebook](https://jupyter.readthedocs.io/en/latest/install.html) version 4 or greater
## Installation
JupyterHub can be installed with pip (and the proxy with npm) or conda:
pip, npm:
`bash
python3 -m pip install jupyterhub
npm install -g configurable-http-proxy
python3 -m pip install notebook # needed if running the notebook servers locally
`
conda (one command installs jupyterhub and proxy):
`bash
conda install -c conda-forge jupyterhub # installs jupyterhub and proxy
conda install notebook # needed if running the notebook servers locally
`
Test your installation. If installed, these commands should return the packages’ help contents:
`bash
jupyterhub -h
configurable-http-proxy -h
`
## Start the Hub server
To start the Hub server, run the command:
`bash
jupyterhub
`
Visit https://localhost:8000 in your browser, and sign in with your unix
credentials.
To allow multiple users to sign in to the Hub server, you must start
jupyterhub as a privileged user, such as root:
`bash
sudo jupyterhub
`
The [wiki](https://github.com/jupyterhub/jupyterhub/wiki/Using-sudo-to-run-JupyterHub-without-root-privileges) describes how to run the server as a less privileged user. This requires additional configuration of the system.
