How to create incremental backups using rsync on Linux

How to create incremental backups using rsync on Linux

In previous articles, we already talked about how we can perform local and remote backups using rsync and how to setup the rsync daemon. In this tutorial we will learn a very useful technique we can use to perform incremental backups, and schedule them using the good old cron.

In this tutorial you will learn:

  • The difference between hard and symbolic links
  • What is an incremental backup
  • How the rsync –link-dest option works
  • How to create incremental backups using rsync
  • How to schedule backups using cron

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Rsync Examples

Examples on how to use Rsync for local and remote data backups and synchonizations

Rsync is a very useful tool which allows Linux system administrators synchronize data locally or with a remote filesystem via the ssh protocol or by using the rsync daemon. Using rsync is more convenient than simply copying data, because it is able to spot and synchronize only the differences between a source and a destination. The program has options to preserve standard and extended filesystem permissions, compress the data during transfers and more. We will see the most used ones in this guide.

In this tutorial you will learn:

  • How to use rsync to syncronize data
  • How to use rsync with a remote filesystem via ssh
  • How to use rsync with a remote filesystem via the rsync daemon
  • How to exclude files from the synchronization

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How to setup the rsync daemon on Linux

How to setup the rsync daemon on Linux

In a previous article we saw some basic examples of how to use rsync on Linux to transfer data efficiently. As we saw, to synchronize data with a remote machine we can use both a remote shell as  ssh or the rsync daemon. In this article we will focus on the latter option, and we will see how to install and configure rsyncd on some of the most used Linux distributions.

In this tutorial you will learn:

  • How to install and configure the rsync daemon

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How to Create Backups with Fsarchiver on Linux

How to Create Backups with Fsarchiver on Linux

Fsarchiver is a free software utility that let us create file-level backups of one or multiple filesystems in a single archive. One big advantage of this kind of backup is that we can restore it on a filesystem smaller than the original one (but of course large enough to contain all the files); this is usually impossible when performing block-level backups, using tools like partclone or dd. In this article we will learn how to install and use the application and its main features.

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