You must create a DNS entry for the external server name. The procedure for this varies, depending on the DNS server software. If DNS is running on a computer running Windows 2000 Server, use the following procedure. For more information about DNS, see Appendix B, For More Information.
Before performing the following procedure, you must have a static external IP address that you can assign to your SharePoint Portal Server computer. This is not the same IP address as the static internal IP address for the server. You receive a range of static external IP addresses when you first establish Internet access through Network Solutions or through another company authorized by the Internet Corporation for Assigned Names and Numbers (ICANN).
The external static IP address is used when you map the external static IP address to the internal static IP address on the proxy server to create a "server publish." For more information, see the Proxy Server Settings section later in this chapter.
You should not need to create a DNS entry if the SharePoint Portal Server computer is on the Internet with no proxy server. If the server is directly on the Internet, the domain controller should already have an entry for the NetBIOS name. In this case, the NetBIOS name is also the external (host) name.