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CompTIA® Network+® N10-005 In Depth by Tamara Dean

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chapter 13

Troubleshooting Network Problems

After reading this chapter and completing the exercises, you will be able to:

• Describe the steps involved in an effective troubleshooting methodology

• Follow a systematic troubleshooting process to identify and resolve networking problems

• Document symptoms, solutions, and results when troubleshooting network problems

• Use a variety of software and hardware tools to diagnose problems

On the Job

A customer called the managed security services firm I worked for and asked why one of his subnets was unable to reach the HTTP proxy service that was running on the inside interface of the Linux-based firewall we managed for him. I dutifully fired up tcpdump, an open source network diagnostic utility, ...

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