title: How do I install Jupyterhub
body: <p>I'm using a MacOS, and I'm trying to run Jupyterhub but it's not working. When I type: "sudo jupyterhub", the following shows up: </p>
  
  <pre><code>[I 2018-06-14 13:05:48.216 JupyterHub app:834] Loading cookie_secret from /Users/Robert/jupyterhub_cookie_secret
  [W 2018-06-14 13:05:48.365 JupyterHub app:955] No admin users, admin interface will be unavailable.
  [W 2018-06-14 13:05:48.365 JupyterHub app:956] Add any administrative users to `c.Authenticator.admin_users` in config.
  [I 2018-06-14 13:05:48.366 JupyterHub app:983] Not using whitelist. Any authenticated user will be allowed.
  [I 2018-06-14 13:05:48.403 JupyterHub app:1528] Hub API listening on http://127.0.0.1:8081/hub/
  [W 2018-06-14 13:05:48.405 JupyterHub proxy:415] 
  Generating CONFIGPROXY_AUTH_TOKEN. Restarting the Hub will require restarting the proxy.
      Set CONFIGPROXY_AUTH_TOKEN env or JupyterHub.proxy_auth_token config to avoid this message.
  
  [W 2018-06-14 13:05:48.405 JupyterHub proxy:456] Running JupyterHub without SSL.  I hope there is SSL termination happening somewhere else...
  [I 2018-06-14 13:05:48.405 JupyterHub proxy:458] Starting proxy @ http://*:8000/
  [E 2018-06-14 13:05:48.419 JupyterHub utils:47] Unexpected error connecting to 34-36-3b-75-b6-de.**(CENSORED)** [Errno 8] nodename nor servname provided, or not known
  [E 2018-06-14 13:05:48.452 JupyterHub utils:47] Unexpected error connecting to 34-36-3b-75-b6-de.**(CENSORED)** [Errno 8] nodename nor servname provided, or not known
  [E 2018-06-14 13:05:48.784 JupyterHub utils:47] Unexpected error connecting to 34-36-3b-75-b6-de.**(CENSORED)** [Errno 8] nodename nor servname provided, or not known
  13:05:49.178 - info: [ConfigProxy] Proxying http://*:8000 to (no default)
  13:05:49.183 - info: [ConfigProxy] Proxy API at http://127.0.0.1:8001/api/routes
  13:05:49.185 - error: [ConfigProxy] Uncaught Exception Error: listen EADDRINUSE :::8000
      at Object._errnoException (util.js:1022:11)
      at _exceptionWithHostPort (util.js:1044:20)
      at Server.setupListenHandle [as _listen2] (net.js:1367:14)
      at listenInCluster (net.js:1408:12)
      at Server.listen (net.js:1492:7)
      at Object.&lt;anonymous&gt; 
  (/Users/Robert/anaconda3/lib/node_modules/configurable-http-proxy/bin/configurable-http-proxy:253:19)
      at Module._compile (module.js:652:30)
      at Object.Module._extensions..js (module.js:663:10)
      at Module.load (module.js:565:32)
      at tryModuleLoad (module.js:505:12)
  13:05:49.187 - error: [ConfigProxy] Uncaught Exception Error: listen EADDRINUSE 127.0.0.1:8001
      at Object._errnoException (util.js:1022:11)
      at _exceptionWithHostPort (util.js:1044:20)
      at Server.setupListenHandle [as _listen2] (net.js:1367:14)
      at listenInCluster (net.js:1408:12)
      at doListen (net.js:1517:7)
      at _combinedTickCallback (internal/process/next_tick.js:141:11)
      at Immediate._tickCallback [as _onImmediate] 
  (internal/process/next_tick.js:180:9)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  [E 2018-06-14 13:05:49.377 JupyterHub utils:47] Unexpected error connecting to 34-36-3b-75-b6-de.**(CENSORED)** [Errno 8] nodename nor servname provided, or not known
  [E 2018-06-14 13:05:49.481 JupyterHub utils:47] Unexpected error connecting to 34-36-3b-75-b6-de.**(CENSORED)** [Errno 8] nodename nor servname provided, or not known
      [C 2018-06-14 13:05:49.482 JupyterHub app:1535] Failed to start proxy
      Traceback (most recent call last):
    File "/Users/Robert/anaconda3/lib/python3.6/site-packages/jupyterhub/app.py", line 1533, in start
      yield self.proxy.start()
        File "/Users/Robert/anaconda3/lib/python3.6/site-packages/jupyterhub/proxy.py", line 482, in start
      _check_process()
        File "/Users/Robert/anaconda3/lib/python3.6/site-packages/jupyterhub/proxy.py", line 478, in _check_process
      raise e
      RuntimeError: Proxy failed to start with exit code 0
  </code></pre>
  
  <p>I'm not sure what's wrong. Did I forget to install a file? Am I not the admin? Plz help ;(</p>