Book Image

Mastering Palo Alto Networks - Second Edition

By : Tom Piens aka Piens aka 'reaper'
Book Image

Mastering Palo Alto Networks - Second Edition

By: Tom Piens aka Piens aka 'reaper'

Overview of this book

Palo Alto Networks’ integrated platform makes it easy to manage network and cloud security along with endpoint protection and a wide range of security services. This book is an end-to-end guide to configure firewalls and deploy them in your network infrastructure. You will see how to quickly set up, configure and understand the technology, and troubleshoot any issues that may occur. This book will serve as your go-to reference for everything from setting up to troubleshooting complex issues. You will learn your way around the web interface and command-line structure, understand how the technology works so you can confidently predict the expected behavior, and successfully troubleshoot any anomalies you may encounter. Finally, you will see how to deploy firewalls in a cloud environment, and special or unique considerations when setting them to protect resources. By the end of this book, for your configuration setup you will instinctively know how to approach challenges, find the resources you need, and solve most issues efficiently.
Table of Contents (18 chapters)
16
Other Books You May Enjoy
17
Index

Using maintenance mode to resolve and recover from system issues

The MRT, also called Maintenance Mode, resides on a separate bootable partition and can be invoked if the system has an unexpected failure. If, for example, the system is unable to complete the auto-commit process, it will reboot to try and rectify what is causing the failure. If after three reboots the auto-commit is still failing, the system will boot into maintenance mode.

If the system failed, you can SSH into the device using the maint username and the serial number of the device as the password. If you connect to the console, you don’t need a username and password.

You can force the system to boot into maintenance mode from the command line by executing the following command. The system will ask whether you want to reboot after you hit Enter:

> debug system maintenance-mode

You can also manually start Maintenance Mode. During the boot process, there is a short window where a dialog asks...