docs: revision of the installation instructions

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

docs/admin/installation-apache.rst

@@ -0,0 +1,94 @@
+.. _installation apache:
+
+===================
+Install with apache
+===================
+
+.. sidebar:: public HTTP servers
+
+   On public searx instances use an application firewall (:ref:`filtron
+   <filtron.sh>`).
+
+.. contents:: Contents
+   :depth: 2
+   :local:
+   :backlinks: entry
+
+Add wsgi mod
+============
+
+.. tabs::
+
+   .. group-tab:: Ubuntu / debian
+
+      .. code:: sh
+
+         sudo -H apt-get install libapache2-mod-uwsgi
+         sudo -H a2enmod uwsgi
+
+Add this configuration in the file ``/etc/apache2/apache2.conf``.  To limit
+acces to your intranet replace ``Allow from all`` directive and replace
+``192.168.0.0/16`` with your subnet IP/class.
+
+.. _inranet apache site:
+
+Note that if your instance of searx is not at the root, you should change
+``<Location />`` by the location of your instance, like ``<Location /searx>``:
+
+.. code:: apache
+
+   # CustomLog /dev/null combined
+
+   <IfModule mod_uwsgi.c>
+
+     <Location />
+
+          Options FollowSymLinks Indexes
+          SetHandler uwsgi-handler
+          uWSGISocket /run/uwsgi/app/searx/socket
+
+          Order deny,allow
+          Deny from all
+          # Allow from fd00::/8 192.168.0.0/16 fe80::/10 127.0.0.0/8 ::1
+          Allow from all
+
+     </Location>
+
+   </IfModule>
+
+Enable apache mod_uwsgi and restart apache:
+
+.. tabs::
+
+   .. group-tab:: Ubuntu / debian
+
+      .. code:: sh
+
+         a2enmod uwsgi
+         sudo -H systemctl restart apache2
+
+disable logs
+============
+
+For better privacy you can disable Apache logs.  Go back to
+``/etc/apache2/apache2.conf`` :ref:`[example] <inranet apache site>` and above
+``<Location />`` activate directive:
+
+.. code:: apache
+
+    CustomLog /dev/null combined
+
+Restart apache:
+
+.. tabs::
+
+   .. group-tab:: Ubuntu / debian
+
+      .. code:: sh
+
+         sudo -H systemctl restart apache2
+
+.. warning::
+
+   You can only disable logs for the whole (virtual) server not for a specific
+   path.