Concurrent User Sessions in Sharepoint2010 FBA site

Hi All,
How do i Restrict concurrent sessions for a single user - SharePoint 2010, its FBA authenticated site.
Currently i am Using a Application variable that stores User and IP and the array is cleared on sign out and session timeout.
We are unable to track the session time out easily, i have a httphandler that redirects to Homepage i am clearing the Application variable in the httphandler but i get the object as Null in debug mode.
I need to implement the same on Window close button click as well to clear the application variable.
As of now the code is working partially. Any suggestions to do it in a better way or it is not possible in SharePoint to track session start and end and restrict user to have a single session. Any help would be greatly appreciated.
Thanks in Advance
Regards

hi
it is impossible to do reliably, this question is raised from time to time. Also I recommend you to double check your architecture: by restricting concurrent user sessions you play against web rules which in most cases is caused by fundamental problem of
the architecture. Your solution with app variable will work only on all-in-one server, on farm it won't work for example. So I suggest to check architecture instead of continue working in this direction.
Blog - http://sadomovalex.blogspot.com
Dynamic CAML queries via C# - http://camlex.codeplex.com

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hi
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Hi All:
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>
But the problem in this case is logoff trigger will not be executed in case if the session got killed or terminated abnormally.
Is there any other good solution for this scenario?
>
A better question might be - is there any other 'worse' solution than that?
>
2) Insert the application logon details (we can figure out the client details from this) into a global temp table,
>
Meaning - if that session goes down you have NO logon details since the data isn't persistent. Is that really useful?
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Meanwhile the user is trying to logon again but can't because the system thinks they are already logged on.
>
All users from all clients are connecting to the database using a common functional ID.
>
Doesn't that kind of make it harder, not easier, to track who is really connecting and using your application?

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NOTE
This
response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you.
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does not control these sites and has not tested any software or information found on these sites.
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how can I find the number of concurrent users in oracle 10g;
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You mean ACTIVE users ??
Use following script :
active.sql
set pagesize 120
set linesize 150
select username, count(*) from v$session where status = 'ACTIVE'
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column spid format a5
column sid format 9999
column serial# format 999999
column username format A9
column schemaname format A8
column osuser format a20
column machine format a15
column logondate format a15
column terminal format a10
column status format a10
column module format a25
select a.sid, a.serial#, b.spid,
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a.username,
to_char(a.logon_time,'DD-MM HH24:MI:SS') LogonDate, a.osuser, a.machine, a.status, a.module
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Is it possible to limit the number of concurrent users for the application in Websphere or at the http management level?

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Concurrent User Sessions in Sharepoint2010 FBA site

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