In this section of the Options dialog, you can configure general settings related to DNS updates.
Max. concurrent DNS updates
Defines the maximum number of DNS updates to perform at the same time.Default DNS servers to update
List of default DNS servers to update.
These DNS server are used for server sets where the "Update the default DNS servers" option is enabled in the Server set properties dialog / Update DNS section
Use the Add button to add a new DNS server - see DNS server properties dialog.
Use the Edit button to update the selected DNS server - see DNS server properties dialog.
Use the Remove button to remove a DNS server.