Even if LL:NG can catch logout <abbrtitle="Uniform Resource Locator">URL</abbr> trough <ahref="writingrulesand_headers.html#rules"class="wikilink1"title="documentation:2.0:writingrulesand_headers">virtual host rules</a>, you can have the need to forward a logout to other applications, to close their local sessions.
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<abbrtitle="LemonLDAP::NG">LL::NG</abbr> has a logout forward mechanism, that will add a step in logout process, to send logout requests (indeed, GET requests on application logout <abbrtitle="Uniform Resource Locator">URL</abbr>) inside hidden iframes.
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<divclass="notetip">The logout request will be sent even if the user did not use the application.
Go in Manager, <code>General parameters</code> » <code>Advanced parameters</code> » <code>Logout forward</code> and click on <code>Add a key</code>, then fill:
<divclass="noteimportant">The request on logout <abbrtitle="Uniform Resource Locator">URL</abbr> will be sent after user is disconnected, so you should unprotect this <abbrtitle="Uniform Resource Locator">URL</abbr> if it is protected by an <abbrtitle="LemonLDAP::NG">LL::NG</abbr> Handler.