Make sure that the Linux server is backed up and restored.

General backup should be the highest priority of responsible system managers. Although Linux is a highly reliable operating system, system failure may still occur. It may be caused by hardware failure, power interruption, or other unexpected problems. More often, these problems come from human errors, improper changes, and even the deletion of important files. If you are responsible for managing users in the system, you may often be asked to recreate files accidentally deleted.

If you perform a general backup, the daily basis is good (at least for more frequently-active user files), you will help reduce the loss of files and increase the degree of recovery. The safest backup method is to record them in different media, such as tape, removable hard drive, and writable cd. Then, separate your backup and your Linux system. Sometimes this may not be practical-maybe there is no fire room where you can store the backup tape! Or there is no way to access such an external backup system at the top priority. Even so, the backup can still be performed, but it will be limited.

In my service organization, I back up data on Several Linux systems. Depending on the situation, some backups are stored on tape, others are written to different servers on the network, but some still use cron automatic jobs (probably because the server is located at the remote end, it is impractical or impossible to back up tapes on a daily basis) and simply put them in separate partitions on different disks (for example, in the "/archive/" File System ).

At home, I don't have an external backup system, and I don't have a lot of disk space to store backup image files. Therefore, I only back up my User Files in "/home/", and there are also some custom configuration files in "/etc, store backups in different disk partitions.

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