Even if LL:NG can catch logout <abbrtitle="Uniform Resource Locator">URL</abbr> trough <ahref="../../documentation/1.9/writingrulesand_headers.html#rules"class="wikilink1"title="documentation:1.9:writingrulesand_headers">virtual host rules</a>, you can have the need to forward a logout to other applications, to close their local sessions.
<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.
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:
<p><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.