Is my system using the No-Execute processor feature?

Solution Verified - Updated -

Issue

Modern versions of 32bit processors of the x86 family support a feature that prevents code execution on a per memory page basis. On AMD processors, this feature is called No Execute (NX) and on Intel processors, it is called Execute Disable (XD).

This feature can help prevent buffer overflow exploits from running on the system. Where possible, this extra protection should be installed.

Environment

  • Red Hat Enterprise Linux (RHEL) 5

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