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= LAB PREPARATION =
==Purpose / Objectives of Lab 67==[[Image:shield.png|thumb|leftright|85px150px|Protecting a computer network from unauthorized access is one of the many day-to-day operations for a Linux system administrator and/or security specialist]]
Setting up a network of computers is very important, but there are many other operations that occur on a daily basis that can include trouble-shooting and repairing network connection issues and maintaining network security. System administrators need to protect or "harden" their computer networks from "penetration" from unauthorized computer users. Hardening a computer system can range from running IDS (Intrusion Detection Systems) to monitor and flag suspicious activity to maintaining workstation screen savers to protect sensitive information while staff are away from their office computers.