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+.. _nginx_conf:
+
+**********
+nginx.conf
+**********
+
+Nginx stable and Nginx mainline both come with their default vendor configuration. This might not
+be the ideal setup for some people, so you have the chance to change any of those settings, by
+supplying custom configurations.
+
+.. seealso:: If you are rather using Apache, have a look at: :ref:`apache_conf`
+
+.. important::
+    You could actually also create virtual hosts here, but it is recommended to use the
+    Devilbox Auto-vhost generation feature. If you want to custimize your current virtual hosts
+    have a look at :ref:`custom_vhost`.
+
+
+**Table of Contents**
+
+.. contents:: :local:
+
+
+General
+=======
+
+You can set custom nginx.conf configuration options for each Nginx version separately.
+See the directory structure for Nginx configuration directories inside ``./cfg/`` directory:
+
+.. code-block:: bash
+
+    host> ls -l path/to/devilbox/cfg/ | grep 'nginx'
+
+    drwxr-xr-x  2 cytopia cytopia 4096 Mar  5 21:53 nginx-mainline/
+    drwxr-xr-x  2 cytopia cytopia 4096 Mar  5 21:53 nginx-stable/
+
+Customization is achieved by placing a file into ``cfg/nginx-X/`` (where ``X`` stands for
+your Nginx flavoour).  The file must end by ``.conf`` in order to be sourced by the web server.
+
+Each of the Nginx configuration directories already contain an example file:
+``devilbox-custom.conf-example``, that can simply be renamed to ``devilbox-custom.conf``.
+This file holds some example values that can be adjusted or commented out.
+
+In order for the changes to be applied, you will have to restart the Devilbox.
+
+
+Examples
+========
+
+Adjust KeepAlive settings for Nginx stable
+------------------------------------------
+
+The following examples shows you how to change the
+`keepalive <http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive>`_, the
+`keepalive_requests <https://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_requests>`_
+as well as the
+`keepalive_timeout <https://nginx.org/en/docs/http/ngx_http_core_module.html#keepalive_timeout>`_
+values of Nginx stable.
+
+.. code-block:: bash
+
+    # Navigate to the Devilbox directory
+    host> cd path/to/devilbox
+
+    # Navigate to Nginx stable config directory
+    host> cd cfg/nginx-stable
+
+    # Create new conf file
+    host> touch keep_alive.conf
+
+Now add the following content to the file:
+
+.. code-block:: ini
+    :name: keep_alive.conf
+    :caption: keep_alive.conf
+
+    keepalive 10;
+    keepalive_timeout 10s;
+    keepalive_requests 100;
+
+In order to apply the changes you need to restart the Devilbox.
+
+.. note::
+    The above is just an example demonstration, you probably need other values for your setup.
+    So make sure to understand how to configure Nginx, if you are going to change any of those
+    settings.
+
+
+Adjust timeout settings for Nginx mainline
+------------------------------------------
+
+The following examples shows you how to adjust various timeout settings for Nginx mainline by
+adjusting
+`client_body_timeout <https://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_timeout>`_,
+`client_header_timeout <https://nginx.org/en/docs/http/ngx_http_core_module.html#client_header_timeout>`_
+and
+`send_timeout <https://nginx.org/en/docs/http/ngx_http_core_module.html#send_timeout>`_ directives.
+
+.. code-block:: bash
+
+    # Navigate to the Devilbox directory
+    host> cd path/to/devilbox
+
+    # Navigate to Nginx mainline config directory
+    host> cd cfg/nginx-mainline
+
+    # Create new conf file
+    host> touch timeouts.conf
+
+Now add the following content to the file:
+
+.. code-block:: ini
+    :name: timeouts.conf
+    :caption: timeouts.conf
+
+    client_body_timeout 60s;
+    client_header_timeout 60s;
+    send_timeout 60s;
+
+In order to apply the changes you need to restart the Devilbox.
+
+.. note::
+    The above is just an example demonstration, you probably need other values for your setup.
+    So make sure to understand how to configure Nginx, if you are going to change any of those
+    settings.