Summary

In this chapter, we looked at several ways in which we can prevent and recover from disasters. Having a sound prevention and recovery plan in place is an important key to managing servers efficiently. We need to ensure we have backups of our most important data ready for whenever servers fail, and we should also keep backups of our most important configurations. Ideally, we'll always have a warm site set up with pre-configured servers ready to go in a situation where our primary servers fail, but one of the benefits of open-source software is that we have a plethora of tools available to us that we can use to create a sound recovery plan. In this chapter, we looked at leveraging rsync as a useful utility for creating differential backups, and we also looked into setting up a Git server that we can use for configuration management, which is also a crucial aspect of any sound prevention plan. We also took a look at Clonezilla, which we can use to create deployment images to allow...