Jan 27, 2016 · Jan 29, 2016
diff --git a/reference/configuration/security.rst b/reference/configuration/security.rst

 .. _reference-security-pbkdf2:

 Logout Configuration
 --------------------

 invalidate_session
 ..................

 **type**: ``boolean`` **default**: ``true``

 By default, when users log out from any firewall, their sessions are invalidated.
 This means that logging out from one firewall automatically logs them out from
 all the other firewalls.

 The ``invalidate_session`` option allows to redefine this behavior. Set this
 option to ``false`` in every firewall and the user will only be logged out from
 the current firewall and not the other ones.

 Using the PBKDF2 Encoder: Security and Speed
 --------------------------------------------
Original file line number	Diff line number	Diff line change
Expand Up		@@ -319,6 +319,22 @@ Redirecting after Login

		.. _reference-security-pbkdf2:

		Logout Configuration
		--------------------

		invalidate_session
		..................

		type: ``boolean`` default: ``true``

		By default, when users log out from any firewall, their sessions are invalidated.
		This means that logging out from one firewall automatically logs them out from
		all the other firewalls.

		The ``invalidate_session`` option allows to redefine this behavior. Set this
		option to ``false`` in every firewall and the user will only be logged out from
		the current firewall and not the other ones.

		Using the PBKDF2 Encoder: Security and Speed
		--------------------------------------------

Expand Down