# Engine Editor > General > DNS Relay

Use this branch to enable and configure DNS relay for engines.

Option | Definition
--- | ---
DNS Relay Profile | Allows you to select a DNS Relay Profile element. Select — Opens a dialog box where you can select an existing DNS Relay Profile element. None — Removes the previously selected DNS Relay Profile element. Selecting None deactivates DNS Relay. New — Allows you to create a new DNS Relay Profile element. Opens the DNS Relay Profile Properties dialog box.
Listening IP Addresses | The IP addresses to which clients in the internal network send DNS requests. Click Add to add an element to the list, or Remove to remove the selected element.
Source for Domain-Specific DNS Queries | The IP addresses that are used as source IP addresses when the engine makes domain-specific DNS queries. When According to Routing is selected, the source IP address is automatically selected based on the route to the external DNS server.