Sophos Firewall: Back up and restore firewalls

Jan 28, 2026

A step-by-step tutorial showing you how to back up and restore your Sophos Firewall. You'll learn about the different backup modes, secure storage master key (SSMK), and best practices for firewall backups. Next, you'll learn the steps to create a firewall backup, back up your configuration to Sophos Central, and restore backups to the same or different firewall model.

  • Captions generated by machine translation and may contain errors**
  • Video Chapters*

00:00 Intro

00:11 Firewall backups

00:42 Overview

01:12 Prerequisites

02:10 Secure storage master key (SSMK) overview

03:57 Backup best practices

04:35 Create new backup

06:08 Back up to Sophos Central

07:55 Restore to same device

09:17 Restore to other device

11:53 Remove pseudo ports

12:53 Outro

  • Relevant Documentation*

📖 Backup-restore
https://docs.sophos.com/nsg/sophos-firewall/22.0/Help/en-us/webhelp/onlinehelp/index.html

📖 Secure storage master key
https://docs.sophos.com/nsg/sophos-firewall/22.0/Help/en-us/webhelp/onlinehelp/index.html

💡 Backup-restore compatibility check
https://docs.sophos.com/nsg/sophos-firewall/reference/backup_restore/port_mapping/en-us/

🔗 Sophos Firewall Configuration Viewer
https://docs.sophos.com/nsg/sophos-firewall/config-viewer/index.html

💡 Ask questions and get expert answers in the Sophos Community. https://community.sophos.com

🔔 Follow and subscribe. https://www.youtube.com/@SophosCybersecurity