Hi Richlm,
From your description, you're wantting to build a trusted sub-system for
your ASP.NET application and wonder what's the proper way to configure
ASP.NET security settings, correct?
Based on my experience, the "AppDomain.CurrentDomain.SetPrincipalPolicy" is
seldom used in ASP.NET application. ASP.NET application has its own
security settings:
** the authentication (in IIS and ASP.NET side)
** the impersonate
the authentication will control whether the IIS will forward security
credential of client to ASP.NET and whether ASP.NET will populate it in
current Thread's principal. The impersonate will control whether the
ASP.NET will change the current worker thread's security account(either the
one you set in web.config or the account forwarded from IIS/CLIENT).
For your scenario, a typical trusted sub-system mainly require a powerful
process account. That means you can change the process account to a custom
account which will have sufficient permission to access any resource your
application requires. And you'll no longer need to do impersonate(to run
thread under client authenticated account or account set in web.config).
Here are some reference about ASP.NET security settings:
#Authentication in ASP.NET: .NET Security Guidance
http://msdn2.microsoft.com/en-us/library/ms978378.aspx
#Impersonation with ASP.NET 2.0
http://www.c-sharpcorner.com/UploadFile/manishkdwivedi/impersonation10092007
065217AM/impersonation.aspx
#How To: Use Impersonation and Delegation in ASP.NET 2.0
http://msdn2.microsoft.com/en-us/library/ms998351.aspx
#Configuring Process Identity for ASP.NET (IIS 6.0)
http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/1
34d11d5-7676-4f59-936b-a59e7bca8515.mspx?mfr=true
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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