How Do I Restrict List Of Network Terminals To Access My Vb.Net Application

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Hi all,

I have designed a vb.net windows application now I would like to give security to my application such as Multi user license.

For example if a user haves only 5 user license than he should be run the application only in 1 server + 4 network machine. When the 6th network machine use the application it should prompt user that "You have only 5 user license".

I need the list of network machine accessing the server application so that i can restrict network terminals.

Any idea how should i proceed it ?

Kindly assist on this.

Thanks.

Posted 29-Sep-15 7:18am

Member 7942646

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Maciej Los 29-Sep-15 16:50pm

Not much useful information...

Thava Rajan 30-Sep-15 0:53am

is you application use sqlserver as backend?
or is your application is not use sqlserver?, this is purely a server client application , need some more information

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Maciej Los · Answer 1 · 2015-09-29T10:51:00

Please, read my comment to the question...

If you use sql server, you can save information about number of connections made to the server when application starts and delete such of information when application quits.

A table used to store loged in/out machines might look like (pseudo-SQL):

CSS

AppLogs
(
    NOLId -- Primary key 
    MachineIP -- machine IP 
    LogInTime  -- Log in date and time 
    LogOutTime  -- Log out date and time
)

Example query to check no. of loged machines:

SQL

SELECT COUNT(*)
FROM AppLogs
WHERE LogInTime = @currentDate AND LogOutTime IS NULL

Got an idea?