Preventing Multiple Logins?
Nov 24, 2010
I'm using the "cache tecnique" to prevent multiple logins. Reading in this forum I have read the following code:
Global.asax
[Code]....
Login.aspx
[Code]...This code works fine, If the user is already logged the second login is not permitted. But....
But if I make the logout (destroing all my session variables) and I try to login a second time... it's not possible, I read that the user is already logged!!I have also tried to clear the cache after the logout but nothing changs, even if it is illogic because the code must work even if I don't do the log off...
View 23 Replies
Similar Messages:
Oct 1, 2010
for avoid (Preventing) Multiple Logins in ASP.NET
View 5 Replies
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.
View 4 Replies
Feb 14, 2011
I have to allow only single user to access the site. We should not allow the same to user to access from another browser.
View 2 Replies
Feb 16, 2010
I have a problem with membership authentication. I have two websites, website1 and website2, and both of them uses forms authentication with SQL membership provider (SQLEXPRESS). I have two scenarios:
Case 1:don't publish the website1 and try to login website1 with user1 -->Works ok
don't publish the website2 and try to login --> it displays the previously logged in user (Website1 user)-->Perfect
Case 2:publish the website1 and login-->works ok
publish the website2 and try to login--> it does not show up the site1's logged in user (No idea why)
then login into website2 and open website1-->it does not show up the website2 logged in user or any user...It looks like something wrong with cookies....
my web.config looks like this:<authentication mode="Forms">
<forms loginUrl="~/LogOn/LogOn" timeout="2880" protection="All"/>
</authentication> [code]....
View 2 Replies
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.
View 2 Replies
Jul 17, 2015
I just want to detect who came to login into site and if same login already logged in ,if same login previously exits then we need to logout the previous session , how to do it using asp.net c#
View 1 Replies
Jan 22, 2010
I am working on site which requires to control user from its misusing. Say a user is login from 1 m/c the other user should not be able to login from other m/c with the same account, but user must be able to do multiple login of same user from the same m/c.
First I was hoping using the IP address check I will be able to do that but due to proxy many user will have a same IP address.
View 1 Replies
Apr 8, 2010
Requirment is to stop more than one user to login at a time using same user id.I am storeing user id in session. 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.
View 3 Replies
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.
View 4 Replies
May 30, 2013
I am using VS 2010 login form and aspnet table for user creation and role assignment. Every thing is working excellent.
My concern is that more 200 users will logon on this site simultaneously what will be the effect on performance? how to optimize site speed when more than 200 users will be log on.
View 1 Replies
Sep 8, 2010
What do you think about an ability of having multiple logins and login types to be attached to the same user? Let me explain this by showing how database schema can be re-factored to support this model:
Remove [Password], [PasswordSalt] columns from [Users] database tableAdd [Logins] table with one-to-many relationship between [Users] and [Logins] tables.This will allow one user to have multiple credentials attached to his or her account of different types such as Username&Password, Windows Live ID, Open ID from different providers
You will be able to restrict allowed login types and OpenID providers in web.config
So.. do you think it is a good idea to add support of this model into ASP.NET 4.5/5.0 membership service?
http://aspnet.codeplex.com/workitem/7149
View 1 Replies
Feb 16, 2011
I currently have an app which using Active Directory for authentication. In other words, the IIS virtual directory is setup Active Directory authentication and I do no have to deal with it at all. If you are on the domain, you can get in.
Some customers now also want to add a feature where they can log in using a standard userid/password combo. The scenario being a contractor coming in for a few days with their laptop and need access to the app. There is no point of creating an Active Directory account for such a person.
View 4 Replies
Jun 6, 2010
I'm just wondering what people use to stop user from click a submission button more than once thus creating many records. Does any one have any examples that take client-side validation into account. I have done much research on this but am yet to find a feasible solution.
View 1 Replies
Jun 16, 2015
How to prevent multiple user to be logged in at a time using a user id ?
After login in to website, the same user id not login in any other system it gives alert msg User Alrdy Login.. and also i have another query If user do not click logout and directly close browser..
View 1 Replies
Dec 19, 2010
What i want to ask is if a user has 2 accounts and
1)Log with the first account and a session variable is assigned, let's say var1
2)Maintaining his account as logged he logs in with another account on another page and again a session variable with name var1 is assigned.
Now the question is.Will the session on the user's first login will be changed?
Or this time the session behaves more like an expanded viewstate?
Remember the user is logging form the same computer,same open browser.
(i should be testing this but unfortunately VS2003 here).
View 11 Replies
Aug 24, 2010
I am sitting with a senario where the client wants a User account only to be logged-on a maximum of 2 concurrent sessions. I am just putting this out to please ask the pro's what ways there are to do this?
I know that one way is to write the Userinfo into a database table ie. UserName,IpAddress and some other usefull info but then when it comes to the time when the user just closes the browser then how am i going to update the database table?
View 2 Replies
Nov 22, 2010
What is the easiest way to show logins in a modal dialog? I'd prefer using JQuery but whatever will show up the login page (in a partial?) whenever i decorate a method with [Authorize] would be great.
Ive been searching for the past couple hours and i cant find anything useable.
View 6 Replies
Jul 21, 2010
I need to have 2 separate logins for my asp.net web site. Firstly I need to block access to the site entirely and show an unstyled log-in page (so it doesnt show the layout of the site).
This login is only needed whilst the website is in development.
Secondly, I need another login for a "members area" of the site. This is part of the functional site and will be permanent.
I'm at a loss as how to manage these 2 logins. I had first thought of using Windows authentication to allow preview access to the site and then forms authetication for the members part but according to IIS7 I "cant run Challenge based and Log-in redirect based authentication simultaneously".
View 4 Replies
May 19, 2010
here i want to check facebook user id and password in my application. if facebook userid and password is correct, go to another page. if not, stay in that page only.
View 1 Replies
Mar 23, 2011
I am trying to find a solution to control the number of logins on asp.net application. I need to install the application in the client server, and set the number of licences. e.g. only 10 users are allowed to access the app.
Every time someone tries to login I need to check how many user are logged in, compare with the total allowed then authorize that user to proceed.
I tried with Certificate, but I couldn't see where to match the number of logged in users with the max number of allowed user.
Also I would like to use the IP address as identifier, then if I open 3 browser windows, it count only one user logged.
Basically this web application will be sold by licences. We need to control the logins per computer, and not per user, and block logins if the limit of logins are reached.
View 3 Replies
Jan 3, 2010
When I create a new login for my SQL Server 2008 I also specify a password for this login. But when I, after the creation is done, check the login's properties the password is much longer than the one I specified. If I here change the password once again, SQL Server 2008 will automatically change the password for the login - again. ANd I don't know what the password that SQL Server keep putting for my logins, since the password consists of small black dots.
View 4 Replies
Aug 20, 2010
it possible to use an application event to save the username in a session variable? I would like to do something like this:
private void ContextOnBeginRequest(object sender, EventArgs eventArgs){
if (_context.Request.IsAuthenticated)
_context.Session["ID"] = _context.User.Identity.Name;
}
However in the above code I get an error saying that Session state is not available.
View 2 Replies
Mar 25, 2011
I am using c#.net web application.I will not allow reply attacks in my application.How do i prevent from the same.
View 3 Replies
Jun 28, 2010
i have used ajax , but i am not very clear of its concepts
i just knw that it prevents full post back
1) frm where can i get a very clear concept for the use and purpose of ajax and how its to be used
2) i have a textbox with autocomplete extender and a button (button1)
button1 is in the updatepanel as i wanted tp prevent post back when i click button the datafrom the textbox is inserted in grid as the click event gave full post back i used updatepanel , now its wrking fine but the prblm is when i enter new datain textbox and fetech the deatils frm database full postback occurs i tried to put the autocomplete etext box in a update panel but its giving error.i need toprevent this post back
3) on the same button click at the end of the click process(ie after adding to grid)i need the autocomplete extetender text box shld be blank
i used textbox1.text="" but its nt working
View 1 Replies
