.. _how_to_connect:

How to connect
==============

.. warning::
   The VPN must be active.

Before connecting, remember to start the VPN or connect from a remote desktop of the visualization platform. This will allow you to access the internal addresses of the cluster.
If you need to setup the VPN you can check the :ref:`VPN` section.

The most common way to connect is using an SSH client to log in to the cluster edge nodes::

    ssh hadoop3.cesga.es

The cluster also has several web user interfaces available, you can access them through the https://bigdata.cesga.es WebUI Login option. You can find useful for example the link that you have there to the **HUE** portal, that allows you to use the Hadoop cluster from a graphical interface.