client mac address or client HDD serial no

[uday]

Can any one help me
How to get client mac address or client HDD serial no or processor serial no. originally assigned by manufacturer of these devices using javascirpt.

Or

Any other dll files that can i excute and get any one serial no.

Thanks in advance

[aso186]

I doubt very much that you could get this info with JavaScript.

You would most likely need an .exe with permission from the user to run.

[uday]

Thanks for replying

I have an application that can be accessed by some my authorised machine. So i want to store some unique identification of machine. can u please suggest me how to get any unique identification of client machine(my machine) but not changeble using javascript or any dll file that can i execute and store these value.

Thanks in Advance

[spinal007]

Javascript is an interpreted language that can only work within the environment of the browser (the interpreter). DLLs, Mac Addresses, etc are beyond your reach.

If you want to uniquely identify users, how about a random string and cookies? Even better, if you use PHP/ASP and sessions are available (on by default), there's already a "session ID" value that unique identifies each visitor.

I don't know what you mean by "not changeable". Technically, any information stored on the client machine being sent back to the server is changeable - ie.: I could change my cookies to impersonate someone else's session. But this a) is not an easy guess and b) is a pretty pointless exercise.

What exactly are you trying to achieve? (though I must say I think ASP/PHP sessions will be sufficient)