Appendix B
Troubleshooting Technically
Information in this chapter:
• Introduction
• Resources
• Basic Troubleshooting Overview
• Troubleshooting Guidelines
• Basic Troubleshooting Tools
• Get and exec commands
• External Flow Trace
• Internal Flow Trace
• Advanced Troubleshooting Tools
• Application Monitoring
• Application Testing
Introduction
Troubleshooting borders on art as opposed to science due to the symptom you are observing may actually be far-removed or obfuscating the actual root cause and sometimes it comes down to luck that you notice some telltale CLI diagnostic output that leads you to the real culprit. This Appendix presents some tools and guidelines to try to make the FortiGate troubleshooting process shorter than it otherwise might ...
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