Upgrading from an older version is straightforward. In online environments, the auto-update mechanism would typically handle the process. An administrator needed to navigate to in the web interface and click "Install Update." PRTG would then automatically download the necessary files from Paessler and guide the user through the rest. For offline environments, it was necessary to manually download the correct installer from the Paessler website and run it on the PRTG core server.
He then made a note in his ticketing system: Reprimand JThorpe regarding unauthorized software.
The Azure Virtual Machine sensor received a significant update to improve reliability.
While the web interface remains the go-to for many, the 21.0.x era solidified the . It provides a native experience for Windows and macOS, allowing admins to manage multiple PRTG cores from a single pane of glass without the overhead of a heavy browser tab. 3. Native Sensor Refinement
Automatically installed on the Core Server machine to monitor its local network segment.
PRTG Network Monitor 21.0.x remains a highly capable, reliable option for mid-market and enterprise network monitoring. By utilizing its agentless architecture, setting up proper credential inheritance, configuring precise notification delays, and optimizing sensor intervals, IT teams can maintain complete visibility over their physical, virtual, and cloud infrastructure. prtg network monitor 21.0.x
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While AI features were nascent in PRTG 21.0.x, a forward-thinking heuristic calculation was introduced. This feature analyzed whether sensors were showing similar patterns, helping administrators discover hidden connections or dependencies within their network. This was an early form of intelligent analysis that presaged the more advanced AI-driven anomaly detection and adaptive baselines that are fully integrated into the platform today.
Improved API integration for AWS, Azure, and Google Cloud, ensuring that "Serverless" doesn't mean "Monitored-less." Core Features That Still Lead the Market
Added "Recurse Subfolders" and filtering by file name, type, or age to monitor automatic processes. SSL/TLS Security Check: Replaced the older SSL sensor with support for and multi-platform probe compatibility. Database Security: Several SQL sensors (ADO,
Handles data processing, web interface configuration, and reporting. Upgrading from an older version is straightforward
The 21.x cycle saw a heavy focus on rewriting older sensors for better performance and reliability: Local Folder Sensor:
If a sensor remains Down for more than 30 minutes, PRTG can send a second alert to a high-priority SMS gateway or paging system, or open a ticket via an external helpdesk API. 7. Optimizing PRTG 21.0.x Performance
Single-page application design built on AJAX for real-time updates without page refreshes.
Dedicated sensors for Microsoft Azure, Amazon Web Services (AWS), and Google Cloud Platform (GCP) to track cloud storage, instances, and billing.
To run PRTG 21.0.x (and most PRTG versions today), specific system and software requirements must be met for optimal performance. The following table summarizes the key requirements for the PRTG Core Server: For offline environments, it was necessary to manually
Here is comprehensive content regarding , structured for a technical overview, release notes summary, or administrative guide.
The 21.0.x release cycle introduced several refinements aimed at security, administrative efficiency, and deeper technical insights. Advanced Protocol Support PRTG 21.0.x supports a vast array of protocols natively:
While 21.0.x was a stable series, regular updates to the latest 21.x version ensure the latest sensor bug fixes and security improvements are applied. Conclusion
Simon opened the he had custom-scripted months ago. It was a hidden gem in his setup. While PRTG checked if the server was awake , this script logged in and checked if the server was actually thinking .