DNS server translates between host names (such as www.infrascale.com) and IP addresses (such as 63.230.20.99). When given only a short name (such as www) to translate, the CFAs domain name (if any) is used to constrain the search within this one domain. You can override this domain name by specifying a domain name in the Search Domains box. You can specify additional domains to widen the search to more domains. Enter the IP address of your network primary DNS server in the DNS Servers box.