{"id":2371,"date":"2025-05-31T22:35:00","date_gmt":"2025-05-31T14:35:00","guid":{"rendered":"https:\/\/ichwanchandra.com\/blog\/?p=2371"},"modified":"2026-07-17T14:55:25","modified_gmt":"2026-07-17T06:55:25","slug":"configure-backup-from-linux-ubuntu-to-asustor-nas-via-rsync","status":"publish","type":"post","link":"https:\/\/ichwanchandra.com\/blog\/configure-backup-from-linux-ubuntu-to-asustor-nas-via-rsync\/","title":{"rendered":"Seamless Ubuntu to NAS Backups: A Guide to Rsync-Based Data Transfer"},"content":{"rendered":"\n

Introduction<\/strong><\/h2>\n\n\n\n

Data loss remains one of the most critical risks for IT professionals, developers, and home-lab enthusiasts alike. While cloud solutions exist, nothing beats the control, speed, and privacy of backing up directly to your own Network Attached Storage (NAS). This guide walks you through a step-by-step process to configure rsync-based backups from our Ubuntu machine to our ASUSTOR NAS.<\/p>\n\n\n\n

Key Takeaways<\/strong><\/h2>\n\n\n\n
    \n
  • Reliable, Native Tooling:<\/strong> Leverage rsync<\/code>, a fast, widely-used Linux utility for efficient file synchronization.<\/li>\n\n\n\n
  • NAS as a Backup Server:<\/strong> Configure your ASUSTOR NAS as an rsync-compatible backup server, pulling data from your Ubuntu machine.<\/li>\n\n\n\n
  • Incremental & Secure:<\/strong> Enable archive mode for block-level incremental backups, compress data to save bandwidth, and password-protect the transfer.<\/li>\n\n\n\n
  • Automation Ready:<\/strong> Schedule regular backups using ASUSTOR\u2019s Backup & Restore app, or use command-line scripts for full control.<\/li>\n\n\n\n
  • Metadata Preservation:<\/strong> Keep critical file attributes like permissions, ownership, and timestamps intact during backup.<\/li>\n<\/ul>\n\n\n\n

    Step-by-Step Guide: Back Up Ubuntu to ASUSTOR NAS<\/strong><\/h2>\n\n\n\n

    Based on ASUSTOR\u2019s official knowledge base (updated December 2025), the core method involves enabling the rsync daemon on your Ubuntu machine, then creating a remote sync job on the NAS. Below is the modern, secure approach for current Ubuntu releases (20.04 LTS and later).<\/p>\n\n\n\n

    Part 1: Prepare Your Ubuntu Machine (Rsync Server)<\/strong><\/h3>\n\n\n\n

    Modern Ubuntu uses systemd<\/code>, so the init script method mentioned in older guides is replaced by a service configuration. Follow these updated steps:<\/p>\n\n\n\n

      \n
    1. Install rsync (if not present):<\/strong>bashsudo apt update sudo apt install rsync<\/li>\n\n\n\n
    2. Create the main configuration file:<\/strong>bashsudo nano \/etc\/rsyncd.confPaste the following template, adjusting paths and IPs:iniuid = your_username gid = your_username address = 0.0.0.0 port = 873 hosts allow = 192.168.1.0\/24 # Your local network range max connections = 5 [ubuntu_backup] path = \/home\/your_username\/important_data comment = Backup from Ubuntu read only = yes auth users = backup_user secrets file = \/etc\/rsyncd.secrets<\/li>\n\n\n\n
    3. Create the secrets file (store credentials):<\/strong>bashsudo nano \/etc\/rsyncd.secretsFormat: username:password<\/code> (e.g., backup_user:SecurePass123<\/code>)
      Set strict permissions: sudo chmod 600 \/etc\/rsyncd.secrets<\/code><\/li>\n\n\n\n
    4. Enable and start the rsync daemon:<\/strong>bashsudo systemctl enable rsync sudo systemctl start rsyncVerify with: sudo systemctl status rsync<\/code><\/li>\n<\/ol>\n\n\n\n

      Part 2: Configure the ASUSTOR NAS to Pull the Backup<\/strong><\/h3>\n\n\n\n

      Now, log into your ASUSTOR NAS\u2019s ADM (ASUSTOR Data Master) interface.<\/p>\n\n\n\n

        \n
      1. Navigate to Backup & Restore<\/strong> > Remote Sync<\/strong>.<\/li>\n\n\n\n
      2. Create a new backup job:<\/strong>\n
          \n
        • Click Create<\/strong> > Remote Sync job<\/strong>.<\/li>\n\n\n\n
        • Server type:<\/strong> Select Rsync-compatible server<\/code>.<\/li>\n\n\n\n
        • Transfer mode:<\/strong> Choose Remote server -> Your NAS<\/code> (you are pulling<\/em> from Ubuntu).<\/li>\n<\/ul>\n<\/li>\n\n\n\n
        • Enter Ubuntu server details:<\/strong>\n
            \n
          • Server IP:<\/strong> 172.16.12.235<\/code> (your Ubuntu machine\u2019s IP)<\/li>\n\n\n\n
          • Port:<\/strong> 873<\/code><\/li>\n\n\n\n
          • Module:<\/strong> ubuntu_backup<\/code> (the name inside [brackets]<\/code> in your rsyncd.conf)<\/li>\n\n\n\n
          • Username & Password:<\/strong> Use backup_user<\/code> and password from the rsyncd.secrets<\/code> file.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
          • Set source (Ubuntu) and destination (NAS) folders:<\/strong>\n
              \n
            • Source:<\/strong> Corresponds to the path<\/code> defined in rsyncd.conf (e.g., \/home\/your_username\/important_data<\/code>).<\/li>\n\n\n\n
            • Destination:<\/strong> Choose or create a shared folder on the NAS (e.g., \/Backups\/Ubuntu_Workstation<\/code>).<\/li>\n<\/ul>\n<\/li>\n\n\n\n
            • Configure advanced options (critical for efficiency):<\/strong>\n
                \n
              • \u2705 Archive mode (incremental backup):<\/strong> Strongly recommended.<\/em> Only changed blocks of files are transferred after the first full backup.<\/li>\n\n\n\n
              • \u2705 Compress data during transfer:<\/strong> Reduces network load, ideal for large files.<\/li>\n\n\n\n
              • \u2705 Keep file metadata:<\/strong> Preserves permissions, ownership, and timestamps.<\/li>\n\n\n\n
              • \u2610 Support sparse files:<\/strong> Only enable if backing up VM disk images or database files.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
              • Schedule the backup:<\/strong> Choose periodic (daily, weekly) or manual. For production systems, a daily incremental backup<\/strong> is standard.<\/li>\n\n\n\n
              • Finalize:<\/strong> Name the job (e.g., “Ubuntu_Work_Backup”) and finish. The NAS will now honor the schedule.<\/li>\n<\/ol>\n\n\n\n

                Alternative Method: Command-Line Push from Ubuntu<\/strong><\/h3>\n\n\n\n

                If you prefer initiating backups from Ubuntu using a script or cron job, ASUSTOR\u2019s guide also provides an example:<\/p>\n\n\n\n

                bash<\/p>\n\n\n\n

                rsync -av \/home\/your_username\/Documents\/ rsync:\/\/backup_user@172.16.13.2:873\/ubuntu_backup\/<\/pre>\n\n\n\n
                  \n
                • Flags:<\/strong> -a<\/code> (archive, preserves metadata), -v<\/code> (verbose).<\/li>\n\n\n\n
                • Authentication:<\/strong> The rsync client will prompt for the password defined in \/etc\/rsyncd.secrets<\/code>. You can automate this using the --password-file<\/code> option (secure permissions required).<\/li>\n<\/ul>\n\n\n\n
                  To schedule this, add the command to a cron job (crontab -e<\/code>), for example, daily at 2 AM:<\/p>\n\n\n\n
                  cron<\/p>\n\n\n\n
                  0 2 * * * rsync -av \/home\/your_username\/ rsync:\/\/backup_user@172.16.13.2:873\/ubuntu_backup\/ --password-file=\/etc\/rsync_pass<\/pre>\n\n\n\n
                  Troubleshooting & Best Practices<\/strong><\/h2>\n\n\n\n
                    \n
                  • Firewall:<\/strong> Ensure port 873 (TCP) is open on your Ubuntu machine: sudo ufw allow from 192.168.1.0\/24 to any port 873 proto tcp<\/code><\/li>\n\n\n\n
                  • Permissions:<\/strong> The rsyncd.conf<\/code> uid\/gid<\/code> must have read access to the source directories.<\/li>\n\n\n\n
                  • Test First:<\/strong> Run the remote sync job manually from ADM without schedule to verify credentials and connectivity.<\/li>\n\n\n\n
                  • Monitor Space:<\/strong> Enable NAS email alerts to avoid filling the backup volume.<\/li>\n<\/ul>\n\n\n\n
                    Conclusion<\/strong><\/h3>\n\n\n\n
                    Integrating Ubuntu backups with an ASUSTOR NAS using rsync provides a professional, efficient, and secure solution. By following this guide, you leverage:<\/p>\n\n\n\n
                      \n
                    • Reliability<\/strong> of a time-tested Linux tool.<\/li>\n\n\n\n
                    • Efficiency<\/strong> via incremental block-level backups and compression.<\/li>\n\n\n\n
                    • Control<\/strong> through on-NAS scheduling or client-side cron jobs.<\/li>\n\n\n\n
                    • Integrity<\/strong> with full metadata preservation.<\/li>\n<\/ul>\n\n\n\n
                      Whether you\u2019re protecting a developer workstation, a home media server, or a small business file share, this setup ensures your data resides safely on your own hardware, accessible instantly. Implement these steps today, and eliminate the \u201cwhat if\u201d from your data management strategy. For further reading, explore ASUSTOR\u2019s Backup & Restore documentation and the man rsync<\/code> page for advanced tuning. Your future self\u2014with intact files\u2014will thank you.<\/p>\n","protected":false},"excerpt":{"rendered":"
                      Data loss remains one of the most critical risks for IT professionals, developers, and home-lab enthusiasts alike. While cloud solutions exist, nothing beats the control, speed, and privacy of backing up directly to your own Network Attached Storage (NAS).<\/p>\n","protected":false},"author":1,"featured_media":2442,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59,8],"tags":[],"class_list":["post-2371","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hardware","category-technology"],"yoast_head":"\nSeamless Ubuntu to NAS Backups: A Guide to Rsync-Based Data Transfer - Ichwan Chandra<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ichwanchandra.com\/blog\/configure-backup-from-linux-ubuntu-to-asustor-nas-via-rsync\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seamless Ubuntu to NAS Backups: A Guide to Rsync-Based Data Transfer - Ichwan Chandra\" \/>\n<meta property=\"og:description\" content=\"Data loss remains one of the most critical risks for IT professionals, developers, and home-lab enthusiasts alike. 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