How to limit users to Login?

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I am developing an application in asp.net4.0 webforms. We need to restrict Login on certain limit:

- Only 499 users can able to login at a time (means only 499 users can be online)
- whenever 500th user try to login, there will be a message "User login exceeds, please login later!".

Is there any built-in feature to calculate number of users? Please note that we are not using any membership provider, we simply use Form-authentication with custom security.

It will be helpful if anyone also provide solution in both asp.net webforms and asp.net MVC4/5.

Posted 25-Oct-14 9:39am

Gaurav Aroraa

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Dimitri Nostarik 25-Oct-14 16:49pm

Simply adjust your server by increasing an integer of connections when a connection is made, and decreasing an integer when a connection is lost? Then, if the integer exceeds a certain amount forcibly close the connection after showing a message?

Maciej Los 25-Oct-14 17:24pm

Depends on web server...

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Maciej Los · Accepted Answer · 2014-10-25T23:29:00

Solution 1

Please, read my comment.

First way:
If you use IIS, you can limit count of connections the way is described here: Limits for a Web Site <limits>[^]

Second way:
You can collect information about the count of connections.
The idea is: when user open your application/site, it checks how many users is already connected. If the count of connection is less than limit, application/site enables user to use it. If the count of connection exceeds the limit, application/site does not allow user to use it. When a user leaves application/site, it must 'remember' this fact to decrease the number of active connections.
So, you have to create a database and write methods to increase/decrease the count of active connections.

Posted 25-Oct-14 23:29pm

Maciej Los

Updated 25-Oct-14 23:59pm

v2

Comments

Gaurav Aroraa 26-Oct-14 5:38am

Thanks Maciej - this is a good solution but unfortunately, its not working in our scenario. I will find-out why? Between, I am accepting your solution :)

Maciej Los 26-Oct-14 5:59am

Thank you ;)
I updated my answer.

Gaurav Aroraa 26-Oct-14 6:01am

Great stuff man! It will definitely save my hundred hours (y)

Maciej Los 26-Oct-14 6:04am

Thank you ;)

Gaurav Aroraa 30-Oct-14 2:12am

We have found another way, I will be posting the same as an article so, others can also get benefited.

Maciej Los 30-Oct-14 2:52am

Let me know, when your article will be available ;)
You can post the link to your article as an answer...

Gaurav Aroraa 30-Oct-14 3:06am

It will take several days to prepare it. Because, I dont wnat editors to spend much time for editing on my articles :). I will comment here as soon as it get published (y)