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Chapter 10: Operational Security
Security+ Guide to Network Security Fundamentals
Second Edition
Objectives
• Harden physical security with access controls
• Minimize social engineering
• Secure the physical environment
• Define business continuity
• Plan for disaster recovery
Hardening Physical Security with Access Controls
• Adequate physical security is one of the first lines of defense against attacks
• Protects equipment and the infrastructure itself
• Has one primary goal: to prevent unauthorized users from reaching equipment to use, steal, or vandalize
Hardening Physical Security with Access Controls (continued)
• Configure an operating system to enforce access controls through an access control list (ACL), a table that defines the access rights each subject has to a folder or file
• Access control also refers to restricting physical access to computers or network devices
Controlling Access with Physical Barriers
• Most servers are rack-mounted servers
• A rack-mounted server is 1.75 inches (445 cm) tall and can be stacked with up to 50 other servers in a closely confined area
• Rack-mounted units are typically connected to a KVM (keyboard, video, mouse) switch, which in turn is connected to a single monitor, mouse, and keyboard
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