Summary

This chapter covered troubleshooting from a networking perspective. You were introduced to many of the common networking issues you will find in the field including IP addressing issues such as subnetting, routing, and gateway configurations. Troubleshooting DNS, QoS, VLAN/VxLAN, firewall configurations, network latency, MTU, and proxies were all introduced and discussed.

There are many utilities offered for both the Windows and Linux operating systems that are invaluable aids in troubleshooting networking problems. The primary tools are ping, tracert/traceroute, telnet, netstat, nslookup/dig, ipconfig/ifconfig, route, arp, ssh, and tcpdump. We gave use cases and showed the text output to help you understand how to use these critical tools when troubleshooting network problems.

Since the cloud is usually at a remote facility, there are different methods to access these resources from your location. The common tools used are SSH, HTTP, RDP, terminal servers, and Telnet.

Troubleshooting...