Synology Logging: Easily View Synology NAS Logs

Explore Synology logging, from accessing system logs in Log Center, creating logs in Synology Support, and accessing logs via SSH.

Logging is a critical aspect of monitoring and troubleshooting any device or software application. If you are running a Synology NAS in your environment, logging helps monitor activities, troubleshoot, and ensure optimal operation. Synology Logging is found throughout a Synology NAS system. Administrators can review and access logs on a Synology system for various purposes, including monitoring, security, and troubleshooting.

Importance of System Logs

System logs offer a comprehensive view of all activities on the Synology NAS. They provide crucial insights into performance hiccups, user access, file transfers, and even potential security threats. With logs, troubleshooting becomes more precise, and proactive measures can be instituted based on patterns observed.

What is Synology Log Center?

Synology Log Center is a centralized platform designed specifically for Synology NAS devices to monitor, review, and manage logs.

Several features make the Log Center an invaluable tool:

  • Unified Interface: The Log Center consolidates logs from different services and applications, offering a singular view for easy navigation.

  • Customization: Users can set specific criteria for log generation. This means you can choose to generate logs for specific events or applications, ensuring that the logs remain relevant and concise.

  • Real-time Monitoring: For those critical moments when immediate oversight is required, the Log Center provides real-time logging. This feature allows users to observe activities as they unfold.

  • Alerts and Notifications: In situations where specific events occur – be it a failed login attempt, a file transfer error, or system malfunction – the Log Center can be set to send out notifications. This proactive feature ensures that administrators are alerted to potential issues as soon as they arise.

  • Data Export and Backup: There might be instances where logs need to be shared or stored for extended periods. The Log Center allows users to export logs and even backup these records for future reference.

Understanding the capabilities of the Synology Log Center equips users and administrators with the tools they need to maintain a tight ship. It’s not just about recording data; it’s about making it actionable and ensuring the system’s integrity at all times.

Navigating to the Log Center

If you head to the main menu, search for “Log Center”, and from here, you can access the application. Log Center provides tools for sorting, viewing system logs, and even generating detailed reports.

Viewing Logs with Log Center

From the main menu of your Synology NAS interface you can click on your , locate and click on your Main menu in the upper left-hand corner of the DSM 7.x interface. Search for “log” and you should see the “Log Center” icon.

If you right-click the Log Center icon, you will see the option to Add to desktop. This will add it to the desktop of your Synology DSM interface.

Adding a shortcut for Log Center to the Synology DSM desktop
Adding a shortcut for Log Center to the Synology DSM desktop

After you launch the Log Center package, you will see a prompt for Advanced Functions. It nudges you to install the Log Center package from the package center. What does this give you? By installing the application from the package center, you will have access to things like:

  • Archive settings

  • Log sending

  • Log Receiving

  • Settions History

Below, you see the prompt from the initial launch of Log Center to install the package.

In package center, if you search for Log Center you will see the following. Click the Install button underneath Log Center to install it.

Installing Log Center from the Package Center
Installing Log Center from the Package Center

Now that we have Log Center installed, we can take a look at the types of logs we have available. Once inside, you’ll find different categories of logs. These include access logs that show:

  • General logging

  • Connection logging

  • File Transfer logging

  • Drives logging

Filtering and Searching: Use the search bar to search for something specific. Input keywords, IP addresses, or user names to narrow down results.

Searching for keywords in Log Center 1
Searching for keywords in Log Center 1

You can easily export logs from the Log Center interface by clicking the Export dropdown button. You can export to HTML and CSV.

Exporting log entries to CSV and HTML 1
Exporting log entries to CSV and HTML

Sending logs from the Log Center to a syslog server is something you can easily do with the Log Center configuration.

Configuring log sending in Synology Log Center
Configuring log sending in Synology Log Center

Generating Logs with Synology Support

Beyond the Log Center, the Support Center is an essential resource. When issues arise that you can’t resolve via the logs, Synology’s Support Center is the go-to. They can access logs (with permission) to diagnose problems. Often, they’ll ask you to generate logs to send to their support services for detailed analysis.

How to Generate Logs for Synology Support

  1. Open the Support Center from the main menu.

  2. Navigate to the “Log Generation” tab.

  3. Click “Generate Logs”. The system will compile all relevant log files into a single DAT file.

  4. Once the log generation is complete, you can download the DAT file and send it to support services.

Using the Synology Support Center to create and export log bundles
Using the Synology Support Center to create and export log bundles

Viewing low-level logs using the terminal

There is another way to view logs at a low level using the terminal prompt. Enable SSH to your Synology NAS and then connect to the management IP. To enable SSH, navigate to Control Panel > Terminal & SNMP > Enable SSH service.

Enabling the SSH service in Synology DSM
Enabling the SSH service in Synology DSM

Once you connect to your Synology via SSH, enter the command:

ls /var/log

You will see all of the low level logs in the /var/log folder which you can open and view or download using SCP, etc.

Viewing Synology logs from the terminal prompt
Viewing Synology logs from the terminal prompt

Accessing and Managing Logs Securely

It’s recommended to access your Synology NAS using a secure connection. SSH (Secure Shell) offers an encrypted channel to keep logs and files confidential. Also, when dealing with logs, managing who has access is essential. Restrict log access to trusted users and always monitor for unusual activity.

Key Takeaways: Monitoring, Accessing, and Utilizing Logs

  • Logs as a Diagnostic Tool: Logs aren’t just about recording data; they’re a tool. Whether you’re troubleshooting, monitoring user access, or overseeing file transfers, logs provide the clarity needed.

  • Easy Accessibility: With tools like the Log Center and Support Center, accessing and managing logs is a breeze.

  • Security First: Always ensure that logs, files, and any data on the Synology NAS are accessed securely. Limit access, use encrypted connections, and regularly review logs for anomalies.

Wrapping up

In conclusion, logging on the Synology NAS is more than just a passive activity; it’s a proactive measure to ensure smooth operations, secure data, and an optimal user experience. Whether you’re a seasoned administrator or new to Synology NAS, understanding and efficiently using logs can significantly enhance your system’s reliability and security.

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Brandon Lee

Brandon Lee is the Senior Writer, Engineer and owner at and has over two decades of experience in Information Technology. Having worked for numerous Fortune 500 companies as well as in various industries, Brandon has extensive experience in various IT segments and is a strong advocate for open source technologies. Brandon holds many industry certifications, loves the outdoors and spending time with family.

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