Chapter 11: Troubleshooting Common Session Issues
In this chapter, we will learn how to read session output and how to troubleshoot basic session issues. We will learn how to use the tools available in the web interface to find problems and test policies. We will go over the steps to collect all the information you need to find out why a session may not be working as expected or predict how a new rule will react to certain sessions. We will also look at a powerful user tool called Maintenance Mode or the Maintenance Recovery Tool (MRT), which allows some very powerful system-level interactions with the firewall.
In this chapter, we're going to cover the following main topics:
- Using the tools available in the web interface
- Interpreting session details
- Using the troubleshooting tool
- Using Maintenance Mode to resolve and recover from system issues
