Help : Security in .net framework

Does anyone can point me out to good articles or documents which clearly
explain the security under .Net framework
I try to follow something but I am really getting lost indeed, a lot confuse
with the code security and security of the operating system also how they are
interact together.
How to define a role ? if you user the PrincipalPermission object does the
user name is the name of a valid users in the Operating system or AD.

All those question makes me not understand at all this security stuf in
code, as well as as when security should be requested and so on...

thnaks for helping me clarifying a lot this stuff. I need it to be reaaly
prepared on my netxt exam 70-306 and others

thnaks for your help
serge

=?Utf-8?B?c2VyZ2UgY2FsZGVyYXJh?=

> Does anyone can point me out to good articles or documents which clearly
> explain the security under .Net framework

Serge,

It sounds like you need to start with the basics. Try some of these:

1. MSDN Video, Basic Principles of Code Access Security:
http://tinyurl.com/3mc4e.
2. MSDN, Introduction to Code Access Security: http://tinyurl.com/6racw
3. MSDN, Introduction to Role-Based Security: http://tinyurl.com/3uhkx

The two MSDN articles above have links to more specific articles. Also,
since you are preparing for the VB exam, you might also like the book
"Security for Visual Basic .NET" (ISBN 0-7356-1919-0). It doesn't go too
deep, but it adequately covers the basics.

I recently took the C# counterpart to 70-306--exam 70-316. There were
probably only four or five security questions. They weren't too hard, but
they did require at least a basic understanding of both code access and
role-based security.

Hope this helps!

Eric