Network Troubleshooting

This chapter is designed to teach you about the hardest part of working with computer networks. Yes, that is true! And trust me, troubleshooting is not an easy job. However, if you are willing to learn and practice at the same time, then no work is difficult. Thus, by understanding the importance of troubleshooting methodology, updating, and maintaining networking devices, you can increase the potential of a high standard of business continuity. Along the same lines, this chapter teaches you the different aspects of troubleshooting various networking devices and technologies. That being said, troubleshooting cables and interfaces, switches, routers, VLANs, ACLs, DHCP, and NAT are the topics discussed in regard to troubleshooting. In addition, this chapter discusses the tools for assessing basic network performance, as well as security threats and vulnerabilities...