Security+ Study Guide
This guide gives you 100% coverage of the official CompTIA Security+ exam objectives for the edge you need to pass the exam on your first try.
TABLE OF CONTENTS Security+ Study Guide
Domain 2.0: Communication Security
Chapter List
- Chapter 3: Remote Access and E-mail
- Chapter 4: Wireless
- Chapter 5: Web Security
Introduction
The Security+ exam covers communication security. Data transmissions, particularly via e-mail or remote access methods, are typically an entity's most exploited vulnerability. Remote access is a common problem in today's networks because more businesses operate from remote offices. More people are connecting to the workplace via the Internet or by "dialing in" through a public switched telephone network (PSTN). This chapter covers the technologies a Security+ technician needs to address including virtual private networks (VPNs) and Point-to-Point Tunneling Protocol/Layer 2 Tunneling Protocol (PPTP/L2TP) protocols that aid in protecting communications, and other technologies used for remote access such as Remote Authentication Dial-in User Service (RADIUS) and Terminal Access Controller Access Control System+ (TACACS+). Each of these terms are defined later in this chapter.
| Warning | Do not confuse remote access with remote control. Remote access is the process of creating a connection from a remote location (such as a home office, hotel room, etc.) whereas remote control programs such as PCAnywhere or VNC are used for emulating PC consoles remotely. |
Technologies like e-mail are so ingrained in society that it is almost impossible to meet someone without an e-mail address. E-mail servers are exposed to the Internet, so they must be protected and secure. For the Security+ exam, you need to know how to protect personal e-mail vulnerabilities with Pretty Good Privacy (PGP) as well as spam and e-mail relay vulnerabilities.
The Need for...
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