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+
+.. _filtron.sh:
+
+====================
+``utils/filtron.sh``
+====================
+
+.. sidebar:: further reading
+
+   - :ref:`installation`
+   - :ref:`searx_filtron`
+   - :ref:`architecture`
+
+.. _Go: https://golang.org/
+.. _filtron: https://github.com/asciimoo/filtron
+.. _filtron README: https://github.com/asciimoo/filtron/blob/master/README.md
+
+To simplify installation and maintenance of a filtron instance you can use the
+script :origin:`utils/filtron.sh`.  In most cases you will install filtron_
+simply by running the command:
+
+.. code::  bash
+
+   sudo -H ./utils/filtron.sh install all
+
+The script adds a ``${SERVICE_USER}`` (default:``filtron``) and installs filtron_
+into this user account:
+
+#. Create a separated user account (``filtron``).
+#. Download and install Go_ binary in users $HOME (``~filtron``).
+#. Install filtron with the package management of Go_ (``go get -v -u
+   github.com/asciimoo/filtron``)
+#. Setup a proper rule configuration :origin:`[ref]
+   <utils/templates/etc/filtron/rules.json>` (``/etc/filtron/rules.json``).
+#. Setup a systemd service unit :origin:`[ref]
+   <utils/templates/lib/systemd/system/filtron.service>`
+   (``/lib/systemd/system/filtron.service``).
+
+.. _reverse proxy:
+
+Public Reverse Proxy
+====================
+
+To install searx in your public HTTP server use:
+
+.. code::  bash
+
+   sudo -H ./utils/filtron.sh apache install
+
+.. tabs::
+
+   .. group-tab:: apache
+
+      .. literalinclude:: ../../utils/templates/etc/apache2/sites-available/searx.conf:filtron
+	 :language: apache
+
+      .. tabs::
+
+	 .. group-tab:: Ubuntu / debian
+
+	       .. code-block:: sh
+
+		  $ sudo -H a2enmod headers
+		  $ sudo -H a2enmod proxy
+		  $ sudo -H a2enmod proxy_http
+
+
+Overview
+========
+
+The ``--help`` output of the script is largely self-explanatory
+(:ref:`toolboxing common`):
+
+.. program-output:: ../utils/filtron.sh --help
+