Hi David,

We’ve had mixed results with mod_auth_cas logout.

One way we have overcome this is using a separate, intermediary (non-CAS) 
logout page to:


·         Remove the MOD_AUTH_CAS and MOD_AUTH_CAS_S cookies from the user’s 
session

·         Redirect the user to the CAS logout page.

We use PHP, could be anything though:

<?php
unset($_SESSION['MOD_AUTH_CAS_S']);
setcookie('MOD_AUTH_CAS_S', '', time()-300, '/');
unset($_SESSION['MOD_AUTH_CAS']);
setcookie('MOD_AUTH_CAS', '', time()-300, '/');
header('Location: https://your.cas.server/cas/logout');
?>

Not sure if that will work for your use case, but perhaps a starting point.

Thanks,
-Neil

From: [email protected] [mailto:[email protected]] On Behalf Of Travis 
Schmidt
Sent: Thursday, August 18, 2016 9:18 AM
To: David Abney <[email protected]>; [email protected]
Subject: Re: [cas-user] Mod_auth_cas Logout Question

Make sure "CASSSOEnabled On" is set in httpd.conf.  If you are using a Service 
Registry in CAS, make sure the Logout Channel is enabled and set to 
BACK_CHANNEL.  This is working for me, but I don't have a proxy in the middle 
either.


On Thu, Aug 18, 2016 at 7:20 AM David Abney 
<[email protected]<mailto:[email protected]>> wrote:
I am using mod_auth_cas v1.1 with a proxy server to login to our PaperCut 
system using CAS v4.2.  We can set a logout URL in PaperCut, which is set to 
the CAS server logout URL.  So, when I logout of PaperCut, it appears I am 
logged out of PaperCut and CAS, but if I go back to the proxy server then 
mod_auth_cas still logs me back into PaperCut without redirecting me to CAS to 
login again.

Is there a way to logout of my session with mod_auth_cas or clear my 
mod_auth_cas cookie?

Thanks,

––––––––––––––––––––
David Abney
ITS Web Developer/Programmer

600 West Walnut Street
Danville, Kentucky 40422
859.238.5761

[email_logo]
www.centre.edu<http://www.centre.edu/>

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