Implementing Automatic Incremental Backups Using Rsync on Debian 12

Abstract

Data is a critical asset whose availability and security must be safeguarded within an information system. Data loss can occur due to hardware failure, user error, or system failure, all of which can disrupt an organization’s operations. Therefore, a data backup mechanism capable of ensuring the availability of information is necessary.This study aims to implement an automatic incremental backup system using rsync on the Debian 12 operating system. The system is built using two servers—a primary server and a backup server—connected via a network. Data synchronization is performed using rsync over the SSH protocol, while the backup automation process is managed using cron.Test results show that rsync is capable of synchronizing data efficiently by transferring only files that have changed. Additionally, cron allows the backup process to run automatically according to a predetermined schedule. The system developed can enhance data security, simplify the backup process, and reduce the risk of data loss on the server.