The objective of this chapter is to provide the reader with an understanding of the following:

Domain 3.0: Infrastructure Security - 20%

3.1 Understand security concerns and concepts of the following types of devices:

• Firewalls; Routers; Switches; Wireless; Modems
  
  
• RAS (Remote Access Server); Telecom / PBX (Private Branch Exchange)
  
  
• VPN (Virtual Private Network); IDS (Intrusion Detection System)
  
  
• Network Monitoring / Diagnostics; Workstations; Servers; Mobile Devices

3.2 Understand the security concerns for the following types of media:

• Coaxial Cable; UTP / STP; Fiber Optic Cable
  
  
• Removable Media (Tape; CD-R; Hard Drive; Diskette; Flashcard; Smartcard)

3.3 Understand the concepts behind the following kinds of Security Topologies:

• Security Zones (DMZ; Intranet; Extranet); VLANs (Virtual Local Area Network)
  
  
• NAT (Network Address Translation); Tunneling

3.4 Differentiate the following types of intrusion detection, be able to explain the concepts of each type, and understand the implementation and configuration of each kind of intrusion detection system:

• Network Based (Active Detection; Passive Detection)
  
  
• Host Based (Active Detection; Passive Detection)
  
  
• Honey Pots; Incident Response

3.5 Understand the following concepts of Security Baselines, be able to explain what a Security Baseline is, and understand the implementation and configuration of each :

• OS / NOS Hardening (File System; Updates: Hotfixes, Service Packs, Patches)
  
  
• Network Hardening (Firmware Updates; Configuration: Enabling and Disabling Services and Protocols, Access Control Lists)
  
  
• Application Hardening (Updates; Web Servers; E-mail Servers; FTP Servers; DNS Servers; NNTP Servers; File / Print Servers; DHCP Servers; Data Repositories: Directory Services, Databases)

Quick navigation to subsections and regular topics in this section

• Getting Ready for Chapter 3 - Questions
• Getting Ready for Chapter 3 - Answers
• 3.0  Infrastructure Security
• 3.1  Devices
• 3.2  Media
• 3.3  Security Topologies
• Pop Quiz 3.1 (Parts: 1 2 )
• 3.4  Intrusion Detection
• 3.5  Security Baselines (Parts: 1 2 )
• 3.6  Summary (Parts: 1 2 3 4 5 6 7 8 9 10 )
• 3.7  Success Questions
• 3.8  Success Answers