May 2025
Intermediate to advanced
646 pages
15h 55m
English
Content preview from Mastering Palo Alto Networks - Third Edition
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14
A Deep Dive Into Troubleshooting
In this chapter, we will learn how a session is formed and how flows traverse the firewall. We will learn how to interpret global counters and take things a step further to look at all the stages that a packet goes through between entering and leaving the firewall. We will see how sessions are set up and how packets are handled at every step.
In this chapter, we’re going to cover the following main topics:
- Understanding global counters
- Analyzing session flows
- Debugging processes
- CLI troubleshooting commands cheat sheet
By the end of this chapter, you’ll be able to analyze all the phases a packet and a session go through while traversing the firewall, and figure out what might be going wrong.
Technical requirements ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.