Backup data recovery
Data backup and recovery are an integral part of computer information security. In the event of a system failure, an attack by intruders or other unforeseen circumstances, backup copies will help restore data and minimize losses.
What is backup?
Backup is the process of creating duplicate files and folders to save information from the original storage. Each operating system offers its own tools for performing this task: Windows has the "Create a restore point" function or the "Control Panel" program, Mac OS X uses Time Machine, Linux can use various commands for tarification (tar) or rsync.
How to choose a backup method?
The choice of method depends on your typical workflow and the amount of data:
1. Full backup:
This method performs a complete download of all files from a specified folder/drive to the target machine.
2. Incremental backup:
Here, only modified files after the last full download will be copied to the target machine. This saves time and storage space.
3. Differential backup:
Similar to incremental, but it copies only changed files from the last full download.
How to restore data?
In case of data loss or the need to restore the system from backup copies:
1. Open the backup software (Time Machine, Windows Backup) or use the Linux command line.
2. Select the desired date/version of the file to restore.
3. Specify the path to save files after the recovery process.
The regularity of performing a backup copy is a key factor in the success of this process: the more often you do it, the less likely it is to lose information in the event of communication or computer hardware problems.
Do not forget to also protect your access to all data with passwords!