To allow more than one user : authentication « Configuration « ASP.NET Tutorial






<configuration> 
    <system.web>
       <authentication mode="Windows" />
            <allow users="MyDomain\User1" /> 
            <allow users="MyDomain\User2" />
       </authorization>
    </system.web>
</configuration> 


or you can use the following:

<configuration> 
    <system.web>
       <authentication mode="Windows" />
            <allow users="MyDomain\User1, MyDomain\User2" />
       </authorization>
    </system.web>
</configuration>








16.6.authentication
16.6.1.Denying all users through the web.config file
16.6.2.The Node
16.6.3.Allowing a single user through the web.config file
16.6.4.Specify all users with the use of the asterisk (*)
16.6.5.To allow more than one user
16.6.6.web.config file for forms-based authentication
16.6.7.Modifying the web.config file to add username/password values