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THE PROC DIRECTORY - SECURITY MODIFICATIONS

Linux has a wonderful facility in the /proc directory. This directory allows the system administrator a real-time access window into the workings of the kernel. The files here are therefore referred to as a "Virtual File System", as the files are representations of different kernel configurations. You can view view some, to see exactly what is happening on your server. Or -as we will discuss- you can modify them, and thus modify the running kernel in real-time. We will be looking at some of the switches relating specifically to securing your system. Please bear in mind that these are general recommendations, and not all these settings may be benefical to you, so please test any changes throughly, and at your own risk.