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document how to restrict a firewall to a specific host #2986

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1 change: 1 addition & 0 deletions cookbook/map.rst.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,7 @@
* :doc:`/cookbook/security/acl`
* :doc:`/cookbook/security/acl_advanced`
* :doc:`/cookbook/security/force_https`
* :doc:`/cookbook/security/host_restriction`
* :doc:`/cookbook/security/form_login`
* :doc:`/cookbook/security/securing_services`
* :doc:`/cookbook/security/custom_provider`
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62 changes: 62 additions & 0 deletions cookbook/security/host_restriction.rst
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@@ -0,0 +1,62 @@
.. index::
single: Security; Restrict Security Firewalls to a Host

How to restrict Firewalls to a Specific Host
============================================

.. versionadded:: 2.4
Support for restricting security firewalls to a specific host was added in
Symfony 2.4.

When using the Security component, you can create firewalls that match certain
url patterns and thereby restrict access to all urls matching these patterns.
Additionally, you can restrict a firewall to a host using the ``host`` key:

.. configuration-block::

.. code-block:: yaml

# app/config/security.yml

# ...

security:
firewalls:
secured_area:
pattern: ^/
host: admin\.example\.com
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the documentation is using an example admin.example.com so maybe at least mentioning that the firewall will be only active on that domain admin.example.com illutstrates it very explicitly. Also what happens on other domains? the firewall does not apply? does the user need to take care about some security issues?

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What security issues do you mean?

http_basic: true

.. code-block:: xml

<!-- app/config/security.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<srv:container xmlns="http://symfony.com/schema/dic/security"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:srv="http://symfony.com/schema/dic/services"
xsi:schemaLocation="http://symfony.com/schema/dic/services
http://symfony.com/schema/dic/services/services-1.0.xsd">

<config>
<!-- ... -->
<firewall name="secured_area" pattern="^/" host="admin.example.com">
<http-basic />
</firewall>
</config>
</srv:container>

.. code-block:: php

// app/config/security.php

// ...

$container->loadFromExtension('security', array(
'firewalls' => array(
'secured_area' => array(
'pattern' => '^/',
'host' => 'admin.example.com',
'http_basic' => true,
),
),
));
1 change: 1 addition & 0 deletions cookbook/security/index.rst
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Expand Up @@ -10,6 +10,7 @@ Security
acl
acl_advanced
force_https
host_restriction
form_login
securing_services
custom_provider
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