Knowledge Base

Welcome to the Paessler Knowledge Base. Feel free to browse and search.

Search

Latest Articles

SNMP Linux Meminfo sensor: Problem w/ memory buffers/cache
Update: The SNMP Linux Meminfo v2 sensor is available as of PRTG 25.2.108. The channels better align with how free and available memory is calculated in Linux as accounts for buffered and cached memory as well. I just installed an SNMP Linux M...
Thu, 10 Jul, 2025 at 5:49 PM
SNMP free Memory Issue
Update: The SNMP Linux Meminfo v2 sensor is available as of PRTG 25.2.108. The channels better align with how free and available memory is calculated in Linux and accounts for buffered and cached memory as well. Hello community, maybe you can ...
Thu, 10 Jul, 2025 at 5:48 PM
How do I set up SSH sensors with my AWS Linux instances?
This article applies as of PRTG 25 Monitoring AWS Linux instances with SSH sensors Follow the steps below to monitor your AWS Linux instances using SSH sensors. Make sure that your Linux instances have a security group configured that allows...
Thu, 10 Jul, 2025 at 5:42 PM
What is a sensor migration?
This article applies as of PRTG 25 Sensor Migration What is a sensor migration? Long-term PRTG users may have noticed that we have recreated multiple existing sensors and marked them as “v2”. Sensor technologies are constantly updating and, i...
Thu, 10 Jul, 2025 at 5:39 PM
License expiration. What will be affected?
Hello, I would like to know what happens upon license expiration in PRTG? Does PRTG loose its functionality or any features? Sensor ? how to backup sensor or export/import sensor ? Thank you. Article Comments Important Notice: PRTG Netw...
Thu, 10 Jul, 2025 at 10:37 AM
Maintenance Days Left
what happens at the end of the Maintenance Days? Is it separate from the license? Important Notice: PRTG Network Monitor has moved to a subscription-based licensing model as of July 1st 2024. Perpetual licenses with maintenance renewal are n...
Thu, 10 Jul, 2025 at 10:34 AM
Planning large installations of PRTG Network Monitor
This article applies as of PRTG 22 What do I have to take into account when planning a large installation of PRTG? Planning large installations of PRTG The maximum number of sensors that you can monitor with one installation of PRTG mainl...
Thu, 10 Jul, 2025 at 10:31 AM
How can I increase the connection limit on VMware systems?
This article applies as of PRTG 22 How do I increase the number of connections accepted by a VMware host system (vCenter) to avoid connection timeouts when monitoring such systems with the VMware sensors of PRTG? In the sensor logs, I...
Thu, 10 Jul, 2025 at 10:25 AM
What security features does PRTG include?
I would like to know more about the high security standards of PRTG. Is there a list of PRTG security features? This article applies as of PRTG 25 PRTG Network Monitor security features We at Paessler take the responsibility for your netwo...
Thu, 10 Jul, 2025 at 9:34 AM
What sensors are deprecated and what are their successors or alternatives?
This article applies as of PRTG 25 List of deprecated sensors and their available successors or alternatives Deprecated sensorDeprecated in PRTG versionSuccessor or alternative Active Directory Login N/A N/A Active Directory Replication Er...
Tue, 8 Jul, 2025 at 1:04 PM