Prevent Multiple User Logging Into The Same Domain Using The Same Browser?
Jul 10, 2010
So its a ASP.NET problem where two users using the same machine, same browser:
User 1 logs in the domain.
User 1 changes some data without saving it.
User 2 logs in the domain in a separate tab.
User 1 switches back to his tab and saves the data.
User 1 actually saved the data into User 2!!
This is caused by the following mechanism:
Different tabs in the same browser seems to share the same session id.
We are storing user auth in cookie and the cookie is shared between tabs (same domain)
Therefore, when User 1 request to save, it is recognized as User 2 since the cookie has been updated to User 2.
So I'm wondering if there's any other methods to prevent this from happening, other than:
1. Use cookieless session so the session is embedded in uri.
2. Always include a hidden field in page to indicate which user owns the page.
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Similar Messages:
Jul 12, 2010
Two users using the same machine, same browser.
User 1 logs in the domain.
User 1 changes some data without saving it.
User 2 logs in the domain in a separate tab.
User 1 switches back to his tab and saves the data.
User 1 actually saved the data into User 2!!
This is caused by the following mechanism:
Different tabs in the same browser seems to share the same session id. We are storing user auth in cookie and the cookie is shared between tabs (same domain)
Therefore, when User 1 request to save, it is recognized as User 2 since the cookie has been updated to User 2.
So I'm wondering if there's any other methods to prevent this from happening, other than:
1. Use cookieless session so the session is embedded in uri.
2. Always include a hidden field in page to indicate which user owns the page.
View 1 Replies
Dec 16, 2010
I am looking at how best to prevent a single user account logging on multiple times in a webforms application. I know that MembershipUser.IsOnline exists, but I've read a few forum and blog entries suggesting that this can be unreliable, particularly in scenarios where a user closes a browser (without logging out) and attempts to logon with a different machine or browser.I looked at implementing a last past the post type system; when a user logs on older users are simply kicked off. It seems that FormsAuthentication.Signout() only works for the current user.
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Feb 1, 2011
I am using standard ASP.net security and want to how I go about prventing the same user from logging in twice.
If the user is already logged in and they log in again what I want to happen is for them to cancel the previous session and log that session out.
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View 6 Replies
Jul 23, 2010
I am using asp.net membership and the login control. I would like to prevent a user from logging in with the same use rname if they are already logged in. I would like to place code in the LoggingIn or Authenticate event of the login control to check whether the user is login and prevent them from logging in again. Any ideas on the best way to do this?
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Sep 20, 2010
We use windows authentication. User opens our website in tab1 and does some action but with out clicking on save he opens a new tab tab2 and opens the same website again. Now, if the user session in tab1 is active i need to warn users that the he is already logged on to application in some other browser and go to some log out page. But if the user session in tab1 is timed out then he must be able to continue with the website in tab2 as usual, but if he tries to do anything in tab1 he should go to session expired page.
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[Code]....
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Mar 25, 2010
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Jun 16, 2015
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Apr 8, 2010
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Jan 26, 2010
I am looking at how best to prevent a single user account logging on multiple times in a webforms application. I know that MembershipUser.IsOnline exists, but I've read a few forum and blog entries suggesting that this can be unreliable, particularly in scenarios where a user closes a browser (without logging out) and attempts to logon with a different machine or browser.
I looked at implementing a last past the post type system; when a user logs on older users are simply kicked off. It seems that FormsAuthentication.Signout() only works for the current user.
Am I missing a trick, is there a better way to prevent the same username logging on from multiple different locations?
View 2 Replies
Jul 17, 2015
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Mar 4, 2010
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Jun 2, 2010
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Jul 17, 2010
I am implementing strightforward membership provider. I do not want new users to be able to login without being approved.
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Feb 17, 2011
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Nov 18, 2010
I have <script src="bla"></script> that can be loaded in several domains.
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Jul 28, 2010
I have two domain servers X and Y.My Asp.net Web application is hosted on Domain X.But my scope is required to authorize the user of Domain Y on the Web application hosted on Domain X server.I am using Windows Authetication mode in application
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Jul 6, 2010
I'm debugging some unexpected behavior and while tracing in to the .NET framework I see a bunch of stuff like this:
if (Logging.On) {
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...
}
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Jan 12, 2011
below written question :
1.) What is the name of the OS process in which App Domain resides.
2.)if suppose There are Three Windows application hosted on a same envoirment and two instance is working for each application at a Time, means now total instance are six .what will happen among the below written cases :
a.) There will be six different app domain in a single OS process
b.) There will three app domain(one for each application) in a single OS process and some Parallel thread will be executed in each app domain for another instance.
c.) There will be Three OS process corresponding to each application.
3.) If eveything will remain same except there are three web application in place of windows in point 2, will there be any change in functioning.
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Mar 16, 2010
I've set up two ASP.NET applications on a machine, their web.config files contain the same applicationName value in AspNetSqlMembershipProvider item so they share users and roles.
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user logs into application A,opens new tab in a browser logs into application B, his login in application A is signed out and vice versa.
Should I use a different approach to sharing login information between two applications?
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