Turn on the Hacluster DNS feature

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The HaCluster product can act as a powerful DNS load-balancer by leveraging its built-in proxy farm. 
With this configuration, DNS requests from client workstations are intelligently distributed across multiple proxy backends, ensuring high availability, improved performance, and redundancy.
HaCluster monitors the health of each proxy and automatically routes queries to the most responsive servers, providing a reliable and scalable DNS resolution service for your network.

Clients connect to the load balancer to perform DNS queries.
The load balancer then connects to the best available DNS service on the backends using TCP with the PROXY protocol on port 5353.
The PROXY protocol is a specialized protocol, which means that clients cannot directly connect to the backend servers to resolve hostnames.

Enable the HaCluster DNS feature

• On the left menu, go to HaCluster > Status
• Select the parameters tab

• Down to the Centralized Configuration of Backends.
• Click on DNS servers row

• Turn on the Create a DNS service using the farm checkbox
• Click on Apply button
• Use this article to monitor your DNS load-balancing farm