Top Backup Tools for Linux: Prevent Data Loss from Ransomware Attacks

The Linux ransomware attacks rise, which can threaten to compromise your data security and cause operational downtime and data loss. To prevent this, a backup strategy becomes necessary.

This article outlines reliable techniques to securely back up your Linux systems to guarantee that your data remains intact even in the face of a cyber attack. We present six top backup software for Linux desktops, servers, and enterprise systems. These tools allow you to automate backups, minimize risks, and protect information. These solutions offer convenience, guarantee the security of your backups, and enable swift recovery and continuity in your operations.

In this article, you'll learn about our six favorite Linux backup solutions and how they compare:

Timeshift Kbackup Rsync Duplicati Amanda Bacula Top Linux Backup Tools Comparison Table

What Is Data Backup & How Can It Mitigate the Risk of Data Loss from a Ransomware Attack?

Data backup involves copying critical files to secure and high-performing external systems to prevent a single point of failure (SPOF). A recent backup survey highlights the importance of backups; it found that while 78% of users back up their data, only 33% do so regularly. So, backing up your desktop and server regularly is critical to protect against data loss during a ransomware attack. You also should check that these files are not corrupted and that they are stored securely. This guarantees that your backups are immediately available for restoration, which allows quick recovery and minimal downtime after an attack.

However, while the digital cloud is a popular storage option, as administrators can automate the backup process, statistics indicate that about 50% of users do not use physical backups for their stored data. Consequently, it is advisable to complement cloud backups with physical storage solutions to improve security and provide data protection.

It should be noted that if users implement a proactive, defense-in-depth security strategy and adhere to security best practices, they can greatly reduce their ransomware risk—but cannot eliminate it entirely. Users must maintain up-to-date servers and endpoints, implement the principle of least privilege for user accounts, closely monitor network activity and system logs, and audit systems regularly. Thus, a backup plan should be considered a critical "layer" of any successful cybersecurity strategy.

4 Top Tips for Secure Data Backup

While 85% of ransomware attacks still target Windows systems, Linux is becoming an increasingly popular target due to the high value of the devices it powers, such as enterprise and government servers, web services, and large databases. Organizations capable of paying ransoms to restore operations and data are especially at risk. These attacks, which often use advanced encryption and extortion tactics, can lead to serious consequences such as data loss, damage to reputation, high recovery costs, and extensive downtime.

Data backup remains the best defense against data loss should you suffer a ransomware attack. 56% of organizations recover their data from backups, compared to 26% that pay the ransom. So why are ransomware victims often unable to restore their systems from their backups? Nearly every admin and organization has backups; however, certain principles must be followed to implement a secure, successful data backup strategy.

• Data should be backed up frequently to meet recovery point objectives and keep potential data loss acceptable. Recovery time objectives should be established based on an acceptable period of downtime, as restore time will often determine the true impact of a ransomware attack. We recommend using folder comparison and synchronization software like FreeFileSync to resolve the differences between a source and a target folder so that only the minimum amount of data necessary is transferred.
• Ransomware attacks can spread across networks, affecting backups as well. To protect backups, use a backup solution that creates unchangeable snapshots and keeps them in a read-only state to prevent encryption by ransomware. Alternatively, an "air-gapped" backup system, isolated from the rest of the IT environment, can also protect backups from malware. However, this method may be costly and complex, and there’s a risk that backups may capture the ransomware if a backup occurs before an attack is detected. Therefore, it’s necessary to check backups regularly to confirm they are not corrupted.
• Diversification is also a key consideration when it comes to creating and implementing a successful data backup strategy. Admins and organizations are quickly learning the importance of defense-in-depth in any type of security. Redundancy and resilience of backups can be accomplished with a "three-two-one" backup strategy, which guarantees that three copies of data are kept, with two on different media formats, one of which is off-site. This strategy makes it highly difficult for a malicious actor to encrypt and lock up every copy of their target’s data.
• Finally, you must restore and recover data from backups with minimal downtime in the event of a ransomware attack. This technical and time-consuming process requires that sysadmins and IT teams practice regularly to identify and improve any potential weaknesses. Luckily, the cloud facilitates easy recovery testing and makes data readily accessible.

Bonus: Comparative Table of The Best Linux Backup Tools

This article is extensive and contains a wealth of information. To assist you in navigating through the Linux backup software we have reviewed, we have compiled a general comparative table. We understand the importance of clear, accessible information, and this table aims to provide concise comparisons.

6 Best Linux Backup Tools to Mitigate Data Loss

Now that you understand the importance of data backups, we will analyze six top backup solutions for Linux. We provide a detailed overview of each tool, including general descriptions and highlighting their advantages. This analysis will help you compare the features and benefits of each tool. We recommend that you review all the tools sequentially, assess their capabilities, and then select the one that best suits your needs.

1. Timeshift (for Desktops)

   [画像:Timeshift]

   Timeshift is one of the most popular Linux desktop backup tools, and LinuxSecurity users and team members rave about it. It is quick and easy to use, comes pre-installed with many popular Linux distros, and is available in the distribution repository. Timeshift supports Btrfs, a modern copy-on-write filesystem that is out of the box. Its Setup Wizard makes configuration simple, and setting up a backup configuration in Timeshift takes less than a minute.

   Additionally, Timeshift for Linux offers functionality similar to the System Restore feature in Windows and the Time Machine tool in MacOS. To protect systems, it takes incremental snapshots of the filesystem at regular intervals. These snapshots can later be restored to reverse any changes made to the system. It is important that Timeshift is designed to protect only system files and settings. User files such as documents, images, and music are not protected.

   ✅ Why do we love Timeshift?

   • Timeshift is ideally suited for backing up Linux desktop environments.
   • The tool is fast and easy to navigate, which makes it accessible to users of all skill levels.
   • Timeshift supports the Btrfs filesystem right out of the box, which improves the security and reliability of backups.
   • Setup Wizard makes setup and configuration simple and quick.
   • Users can create system snapshots at any moment ( Timeshift allows for multiple levels of snapshots, including Hourly, Daily, Weekly, Monthly, and Boot).

   📆 Last update: The last update to Timeshift was made three years ago.

   📥 Install Timeshift: For detailed instructions on how to install Timeshift, please visit the Timeshift GitHub page. These guidelines will help you set up and start using Timeshift on your system.

2. Kbackup (for Desktops)

   [画像:Kbackup]

   Kbackup is a user-friendly, highly portable backup tool for both Linux and Unix that enables users to create automated, unattended backups. It creates archives, compresses them using the tar and gzip utilities, and then creates backups.

   Kbackup is highly reliable and supports full or incremental backups. It also offers encryption and double buffering for added security, support for tape drives, floppies, or removable media, and remote backup across networks. Kbackup has a menu-driven interface and a Command Line interface that can be included in automated scripts.

   ✅ Why do we love Kbackup?

   • The software provides high reliability for securely storing data. It is designed to perform automated backups, which makes the process of data protection easier.
   • The software supports full and incremental backups for flexibility, depending on your data protection needs.
   • It can handle backups on various storage media, including tape drives and removable media, and also supports remote backups over networks.
   • Features such as compression, encryption, and double buffering are available to enhance the security and efficiency of backups.
   • The software has a user-friendly menu-driven interface and a command line interface, ideal for integration into automated scripts.
   • It can be easily adapted across different environments.

   📆 Last update: January 9th, 2025.

   📥 Install Kbackup: Visit the project’s GitHub page for detailed installation instructions.

3. Rsync (for Desktops & Servers)

   [画像:Rsync]

   Rsync is a simple but powerful utility that comes pre-installed with many popular Linux distros or is available in the repository. It is memory-friendly and can do anything a file manager can do from the Command Line, using a user-friendly command syntax. For instance, you can synchronize two directories by deleting existing files from the destination directory and copying all files from the backup directory using the command rsync -av --delete /backup/ /destination/.

   While rsync isn’t strictly a backup application, it’s the foundation for many of them. It’s quite possibly the most versatile file transfer application available. It was designed years ago to synchronize two files efficiently. But now, it has evolved into a powerful command-line tool to maintain files across different systems. Rsync supports any Cloud storage destination available online, including Google Cloud and an Amazon AWS instance. You can transfer backup files to remote storage using rsync with SSH ( from most modern desktops, this will automatically use SSH, but if it doesn’t, you can manually tunnel the file transfer through SSH).

   🔴 Note: Rsync also has a GUI called Grsync that can be installed from your distro repository.

   ✅ Why do we love Rsync?

   • These tools are ideal for backing up both Linux desktops and servers, which provide complete data protection across your entire infrastructure.
   • Users can perform any action that a file manager can from the Command Line with a user-friendly command syntax.
   • The tool supports incremental backups, which facilitates easy adaptation to an increased backup schedule and minimizes the storage footprint.
   • It offers the option to tunnel through SSH, which adds an extra layer of security to protect data during transfer.
   • This tool supports both local and remote backups.
   • It preserves file permissions and ownership settings during the backup process.
   • Updates the file system and the directory tree after an operation that backs up new files on an already-established backup directory structure.
   • They support both anonymous and authenticated rsync daemons, which is ideal for mirroring data across different locations.

   📆 Last update: April 6th, 2024.

   📥 Install Rsync: To install Rsync, you can find complete installation instructions on the Rsync GitHub page.

4. Duplicati (for Desktops & Servers)

   [画像:Duplicati]

   Duplicati is a free and open-source Linux backup software that supports many popular third-party storage providers, including Google Drive, Dropbox, OneDrive, Amazon S3, and Google Cloud. It also stores backups on various remote file servers using SSH, making it easy to use an off-site destination far away from the original data—an important component of securing backups against ransomware. This feature also makes it a viable solution for desktop users.

   Duplicati supports incremental backups, so only changed parts need to be transferred. Theol features a built-in scheduler and auto-updater. It protects data privacy with AES-256 encryption and supports GPG encryption for backups. It also regularly tests backup content to detect broken backups on corrupt storage systems before it’s too late.

   ✅ Why do we love Duplicati?

   • Duplicati provides data security by encrypting it before upload, which protects your information against unauthorized access.
   • The software compresses files and supports incremental backups, which reduce both storage space requirements and bandwidth usage.
   • Duplicati includes an integrated scheduler that automatically updates backups to keep your data protection up-to-date without manual intervention.
   • It is available as a user-friendly graphical application and a command-line tool.
   • Under Linux, Duplicati utilizes the Logical Volume Manager (LVM) to back up open or locked files.
   • Users can adapt their backup operations with various filters, deletion rules, and options for data transfer and bandwidth management.
   • Duplicati regularly tests the integrity of backups to identify and address storage issues that may lead to corrupted data.

   📆 Last update: Duplicati received its last software update in November 2024.

   📥 Install Duplicati: Duplicati can be downloaded from the project’s GitHub page for free.

5. Amanda Community (for Enterprise Servers)

   [画像:Amanda Community]

   Amanda Community Edition is a free version of Amanda, the popular open-source data Linux backup and recovery software. It enables IT administrators to set up a single master backup server to back up many servers and workstations running multiple versions of Linux or Unix.

   Amanda Community Edition provides a rapid installer to minimize installation time. It also has an intelligent scheduler to automate backups. Amanda offers database, application, broad platform protection, and automated data retention in the event of transmission faults. Backup fault tolerance guarantees that initiated backups will remain synced in the case of network interference and will not compromise the entire backup.

   🔴 Note: Amanda Community is available for free, while its professional version, Zmanda Pro, is a paid service that offers additional features and functionalities.

   ✅ Why do we love Amanda?

   • This system enables the configuration of a single master backup server that backs up numerous servers and workstations using various Linux or Unix versions.
   • An intelligent scheduler automates the backup process for timely updates without manual intervention.
   • Amanda guarantees that backups remain uninterrupted and synchronized, even in network disruptions, which eliminates the need to restart the process.
   • Users can choose from various storage media options to meet their backup needs.
   • Maintains secure communication between the server and client via OpenSSH to allow secure backup of machines in a DMZ or on the Internet.
   • Automated disposition policies streamline the management of backup lifecycles and simplify compliance and data control.

   📆 Last update: Amanda was last updated on August 15th, 2023.

   📥 Install Amanda: Amanda binary packages can be downloaded from the project’s website. Source packages can be downloaded from the project’s SourceForge page.

6. Bacula (for Enterprise Servers)

   Bacula is a popular enterprise-level Linux backup solution available in all major Linux distro repositories. Linux security admins report that it can be difficult to set up, but once you do, you can easily manage its settings via a GUI or the Command Line.

   Bacula can create automatic backups on a remote or local server, manage backups using a CLI or a GUI, add volume pools, add storage blocks, include or exclude files, and more. It uses Transport Layer Security (TLS) authentication, supports virtual backup and duplicate job control, and can create accurate backups with compression support.

   ✅ Why do we love Bacula?

   • This software provides an enterprise-level backup solution for data protection that is suitable for large-scale operations.
   • It enables automatic backups on both remote and local servers.
   • The software can be easily managed through a graphical user interface (GUI) or the Command Line.
   • It employs Transport Layer Security (TLS) authentication to secure data transfers and improve the integrity and confidentiality of your backups.
   • The system supports virtual backups, which allow seamless data protection in virtualized environments.
   • It includes support for cloud storage and provides scalable and accessible backup storage options.
   • The software offers duplicate job control to manage backup tasks and prevent redundant data storage.
   • It allows data compression to increase the accuracy of backups, reduce storage requirements, and speed up data transfer.

   📆 Last update: The software received its latest update on September 12th, 2023.

   📥 Install Bacula: While the open-source tools required to build a Bacula enterprise backup system can be downloaded for free, Bacula also offers subscription-based enterprise data backup solutions that combine Snapshots, advanced deduplication, single file restores, single mailbox restores, and data verification into one platform. Bacula Enterprise also includes assistance with onboarding and implementation and customized, ongoing support.

Key Takeaways for Secure Data Backup on Linux

The ransomware threat is here to stay and must be proactively addressed—but also prepared for. Data backup is an important part of secure Linux administration and can enable you to restore your system in the event of ransomware. While keeping on top of backups is difficult for most admins, using one of the automated, cloud-based tools introduced in this article can save time and improve your system's security.

When choosing a Linux backup tool, admins should consider functionalities like database support, the nature of the backup media, encryption support, and supported data or file formats. It is critical to do your research and select a reliable backup solution, such as one of the tools featured in this article, to prevent the potential compromise of sensitive information. Remember, prevention is far better than reaction when it comes to ransomware and other cyber threats. Invest in your backup strategy now. Should something ever go wrong, you’ll be very thankful you did!

Have additional questions about secure data backup on Linux? Are you using one of these tools in your backup strategy or another tool you think we should cover? Please reach out to us on Twitter, ask questions, and share your experience. We love to discuss topics like this with others who share our passion for Linux and security!