How To Prevent Multiple Login For Same User

Jun 19, 2010

I want to prevent multiple user login for same user in asp.net.. How can I achieve. Note: I want to control without database concepts

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Security :: How To Prevent Multiple Login Using Vb.net

Jan 27, 2010

how to prevent multiple login using vb.net? I'm using visual studio.net 2008

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Security :: Prevent User To Login After 3 Fails?

Jun 24, 2010

i intent to prevent user to login after 3 fails. After that, system said the user have to wait about 20 minutes.

How the best approach to do that?

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Prevent URL Entry And Redirect The User To Login Page?

Oct 26, 2010

I am using forms authentication on ASP.NET. If I try to access a page by copying the query string and pasting it into the browser, it allows me access to the page. How can this be prevented? I want the user to always have to login.

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Web Forms :: Can A Login Control Event Be Used To Prevent User From Logging In Twice

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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C# - How To Prevent Multiple Logins Of Same User Id

Apr 8, 2010

how to prevent multiple user to be logged in at a time using a user id ?

I searched the internet and found some ways but somehow they do not work in these situations:

If javascript in brower is turned off.

If user do not click logout and directly close brower.

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Prevent Multiple Logons For A Single User?

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?

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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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Security :: Prevent Multiple Concurrent User Logins For The Same UserName

Jun 2, 2010

My application is windows authenticated. The application pulls JUST the userName from the current windows account. Then I provide site access to this user depending on his account privileges. If his userName belongs to the admins list he is directed to admin screens. If his username belongs to users list he is directed to users screens. I handle this security in C# and some SQL tables(No membership provider and no Active directory security in the app).

I need to be able to prevent multiple concurrent logins for the same userName.

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Asp.net - To Prevent A Single User Account Logging On Multiple Times In A Webforms Application

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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C# - Avoid Multiple Login For The Same User?

Mar 16, 2011

I wanted to stop multiple login of the same user. So, I created a table which keeps track of users who have logged in. When they log in, the data will be entered in the table. When they click on logout, data and session will be removed. The problem is, when they close the browser window without logging out, they won't be able to login ever again.

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Security :: User With Multiple Roles And Login Views?

Jul 21, 2010

I have users that belong to more than one role and I have a login view for those roles but I only see the first role's content.

How should I be going about getting to see all content for the roles that user is in? My user logs in and is a member of MACED and ADMIN but only sees the links for MACED

[Code]....

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Security :: Avoid Multiple User Login With Same Username?

Feb 7, 2011

i have probleM to check the login ,but i found one solution in this site.. AVOID MULTIPLE USER LOGIN, ...IS THER ANY OTHER METHOD TO SOLVE THIS PROBLEM.....

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Security :: How To Restrict User To Login From Multiple Location

Jun 22, 2010

Can anyone explain how to make unique login in asp.net

<b>Problem:</b> If user is logged at a client machine and tries to login from other client machine at the same time, then he should be prompted that "You are already logged in, Do you want to continue?" on continue user should be logged out from other machine and logged in to current machine.

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Security :: Restricting User Login On Multiple Machines?

May 12, 2010

I am working on asp.net , I want to restrict a user to login in his acount from multiple locations or machines.

If one user is already login , I want to restrict it and display message that you are already login somewhere.

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After Multiple User Login / Some Time C# Application Get Slow

Jul 2, 2010

In application all sql connection close properly, Also when user log out its connection close still sql process memory increase in RAM and after some time Application slow down.

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C# Multiple Login Pages Based On Which Folder User Attempts To Access?

Jul 15, 2010

I have developed an application in ASP.NET 3.5 which utilizes the Membership and Roles Providers and Forms Authentication to manage user access and profiles.

There are various area's of this application that are only to be used by an admin users whom login using their email and password and the rest of the users log in using their telephone number and password via their iPhone.

For simplicities sake, I would like to have two different login pages, one that is formatted for the iPhone and performs the correct validation for users adding a telephone number and the other for the application administrators.

I want to redirect the user to their respective login page based on which folder they are attempting to access. For example say I have an application structure like this

/Admin
/Couriers
/Customers
/Whatever
Default.aspx
iPhoneLogin.aspx
adminLogin.aspx
Web.config

I want to be able to redirect users who go to [URL]/Whatever to iPhoneLogin.aspx and users to go to [URL]/Admin to adminLogin.aspx

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DataSource Controls :: User Login Form / Validate Specific User On Login Page

May 28, 2010

how i can validate Specific user ON My Login Page

whether the username exist or not

if its exist it should match with the right password and right username

Language-ASP.NET C@

BACKEND-SQLSERVER 2005

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Web Forms :: Login Control - Cannot Open User Default Database. Login Failed For User "NT AUTHORITYNETWORK SERVICE"

Aug 28, 2009

I have finally gotten the login control configured to work in debug mode, but when I try it from a web page, I get the following error: Cannot open user default database. Login failed. Login failed for user 'NT AUTHORITYNETWORK SERVICE'.

The connection to the main SQL Server database works fine, as do all other functions. Just no login.

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Security :: How To Prevent Concurrent Login In C#

Jun 22, 2010

I want to prevent concurrent login under same username. I am using aspnet_users & membership concepts. So How can I achieve this....

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Login Control - Prevent Table Wrapper?

May 16, 2009

no mather what CONTENT is inside <LayoutTemplate> node:

Code:
<asp:Login ID="loginControl"
TitleText=""
DisplayRememberMe="false"
[code]....

Is there way to prevent this wrapping?

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AJAX :: Prevent ModalPopup From Disappearing After Wrong Login?

May 6, 2010

I put loginView control inside ModalPopupExtender, the problem is: when I try to login with wrong user/password and press the login button, this button cause a postback and then the page reloads and ModalPopup dissapears, only when I press the button wich cause ModalPopup to show itself, I see the loginview control with the message "username or password is wrong"

What can I do to prevent ModalPopup from disappearing after wrong login?

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Security :: Prevent The Asp:Login Control From Rendering A Table Around My Controls?

Feb 26, 2010

Is there any way to prevent the asp:Login control from rendering a table around my controls? Rendered HTML: <div id="credentials">

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SQL Server :: Cannot Open User Default Database. Login Failed. Login Failed For User X

Aug 26, 2010

Cannot open user default database. Login failed. Login failed for user X

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Installation :: Cannot Open Database - Requested By Login. The Login Failed. Login Failed For User?

Oct 4, 2009

Cannot open database '?' requested by login. The login failed. Login failed for user 'NT AUTHORITYNETWORK SERVICE'.

I'm running SQL Server 2008 Express, Visual Web Developer 2008 Express. I moved the database from another pc running SQL Server 2005 Express.

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VS 02/03 - Prevent Multiple Instances Of Web App

Apr 1, 2010

Is there an easy way to prevent users from opening multiple instances of the same web application? Can I add something to the application start section of the global page which would prevent this?

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Prevent Multiple Logins In One PC?

Oct 1, 2009

I'm developing an intranet site. Everything is fine until my boss gave me another problem, which is quite easy i think but not really easy for novices like me.

the new requirement for the site is that it should not allow multiple logins in one pc even if the crededentials being used are different. (two different users logging-in in two launched browsers in one pc)

i actually have an idea on how to do it if the same login credential is being used, but i have no idea if its already two or more different credentials.

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Prevent Multiple Simultaneous Logins?

Feb 11, 2011

I am trying to prevent multiple simultaneous logins in my web application. I want to signout all/any previous authentications of a user when they login. Such that the current login remains the only one.

How do I go about calling FormsAuthentication.SignOut() for a particular user to invalidate any existing authentications.I have tried searching everywhere but no answers, only theories.

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How To Prevent Multiple Users On A Page

Aug 28, 2010

What whould be the best way to prevent multiple users on a page?

For example if a user is at the page "Home.aspx", no other users should be allowed to go there.

I'm using asp.net on the server and the js-frameword jQuery on the client side.

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Prevent Multiple Connection From The Same Username?

Nov 2, 2010

I am using the provided ASP.NET SQL Membership & Role providers in my application.

How can I prevent that the same user does login from different workstations using the same credentials? I can imagine to use the IP address for this but I dont really know where to start from...

Also what about users behind the same router? Is there a way to prevent them access from different client PC's?

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