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To: Tarpon
This NXbit can be used on home computers that are not networked? Does it work with all OS? I was trying to research intrusion protection systems after listening to Beck earlier, but it was a little confusing to someone limited understanding of all this computer tech stuff.

Also, I believe my pc is probably running as an admin user. How do you change it?

Thanks for your expertise, Tarpon. :~)

43 posted on 08/03/2009 4:59:22 PM PDT by My hearts in London - Everett (So the writer who breeds more words than he needs, is making a chore for the reader who reads.)
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To: My hearts in London - Everett

The NX bit is hardware in the CPU. It is enabled to work with the OS. The only OS I know so far that definitely supports it is the Windows 7 64bit and Linux 64 bit. MS has grumbled about other OS support.

It is chip dependent, You need to check the Intel site for your chip and see if it has the hardware. Less than 50% of Intel chips has it right now. AMD 64 chips are far better with their support.

What this combination does is prevent the classic ‘buffer overflow exploit’, which is what enables about 98% of all virulent attacks. Script kiddies need to go on unemployment.

This technology is over 20 years old, most real computers have separated executable code from data using the mmu but Intel x86 has not. NX bit essentially marks the memory page code or data, and prevents execution of data pages.


63 posted on 08/03/2009 5:53:51 PM PDT by Tarpon (You relinquish your responsibilities, you surrender your rights.)
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To: My hearts in London - Everett

To change the computer from admin, you probably need to make another user, make that the admin and then convert your user from admin to a normal user.

You use the control panel in Windows, groups association on Linux. It’s in the windows control panel users panel.

This should be done immediately as it exposes your operating system to compromise which can really screw up your system.

Create another user, of type admin, then convert your user to normal. That way you have an admin account to use for the system administration.


64 posted on 08/03/2009 5:57:54 PM PDT by Tarpon (You relinquish your responsibilities, you surrender your rights.)
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