The DNS server properties dialog is used to add a new DNS server, or to edit the properties of an existing DNS server.
You can create a new DNS server by clicking the "Add..." button in the Server set properties dialog / Update DNS section or in the Options dialog / DNS updating section.
You can edit the properties of an existing DNS server from the Server set properties dialog / Update DNS section or the Options dialog / DNS updating section selecting a DNS server in the list and then clicking the "Edit..." button.
The DNS server properties dialog consists of 4 sections: