In this chapter, you will learn how to do a system backup and restore in a disaster recovery scenario, and how to diagnose and troubleshoot a common array of problems. These are skills that each Linux system administrator needs to have if they wish to be prepared for worst-case scenarios such as power outages, theft, or hardware failure. The world's IT backbone runs on Linux and we need to be prepared for anything that life throws at us.
In this chapter, we're going to cover the following main topics:
- Planning for disaster recovery
- Backing up and restoring the system
- Introducing common Linux diagnostic tools for troubleshooting