What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

PRTG Cluster Web Interface



Apologies, I couldn't find this in the documentation, but what happens to the Web Interface in the event of a primary node failure and the failover node takes over? Would we need to manually change external DNS to point to the external IP of the failover node?

cluster dns interface prtg web

Created on May 17, 2022 3:30:10 PM

1 Reply



Hello Rob,

Thank you for your message.

Regarding your question, if both servers are located on different sites I'm afraid that you will indeed have to modify the DNS name to have access to the failover. However, as the failover takes over the role of master for a short time only (usually), it is not a sustainable solution.

To always keep an access to PRTG no matter where the servers are, you would need a kind of failover which will distribute the traffic to the Master server first, and then to the failover node in case the first one fails. This way, you would not have any manual effort to do.


Created on May 19, 2022 12:53:24 PM by  Florian Lesage [Paessler Support]

Last change on May 19, 2022 12:54:20 PM by  Florian Lesage [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.