@RonC0128 To disable web access for batch nodes in a Pega environment with 4 nodes (2 Web and 2 Batch), you can prevent direct access to the batch nodes by disabling the HTTP listener. In Dev Studio, go to Records > Integration-Resources > Service Listener, find the HTTP listener for batch nodes, and disable it. Alternatively, update the prconfig.xml file on batch nodes by adding <env name="http/disable" value="true" /> to block web access. Ensure the batch nodes are correctly classified with <env name="identification/nodeType" value="BATCH" />. You can also restrict access using firewall rules to block port 8080 or configure the load balancer to route traffic only to the web nodes. Additionally, you can enforce security policies using DSS like security/enableRequestorWhitelist to allow only specific IPs. Restart the batch nodes after making these changes for them to take effect