Restrict access to an ASP.NET web page developed using c#

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Hi,

I want to restrict the access to a web page i.e it should be opened from a specific list of computers. How can I do that using c# in ASP.NET. Please specify the different ways of identifying a computer and thereby restrict the access to unauthorized computers

Posted 29-Oct-12 22:51pm

Srivikas

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OriginalGriff · Answer 1 · 2012-10-29T23:46:00

You can't in practice identify a computer from the server - or at least not in a way that can't be spoofed in some manner.

IP addresses are router based - the actual PC information does not get through the router, so all PC's on an ADSL line for example would be identified by the same IP address.
MAC addresses you can't get at because they also don't pass through the router.
The only way to uniquely identify a PC as "allowed in here" is to use a cookie on the PC, but it's not that secure.

The normal way to handle this is to allow access based on user, rather than the work station the user is operating at.