【正文】 he DNS namespace .....................................................................................6 Designing a DNS namespace...............................................................................................8 Creating an Inter DNS domain name .............................................................................9 Creating internal DNS domain names ................................................................................9 Creating DNS puter names .........................................................................................9 Installing and Configuring AD DS and DNS ............................................................................ 11 Configuring Client Settings .................................................................................................... 19 Advanced DNS Configuration ................................................................................................ 27 Adding resource records .................................................................................................... 28 Automatically removing outdated resource records .............................................................. 29 Troubleshooting DNS ............................................................................................................ 31 5 StepbyStep Guide for DNS in Small Networks Domain Name System (DNS) is a system for naming puters and work services that maps those names to work addresses and anizes them into a hierarchy of domains. DNS naming is used on TCP/IP works, such as the Inter and most corporate works, to locate puters and services by using userfriendly names. When a user enters the DNS name of a puter in an application, DNS can look up the name and provide other information that is associated with the puter, such as its IP address or services that it provides for the work. This process is called name resolution. Name systems, such as DNS, make it easier to use work resources by providing users with a way to refer to a puter or service by a name that is easy to remember. DNS looks up that name and provides the numeric address that operating systems and applications require to identify the puter on a work. For example, users enter instead of the numeric IP address of the server to identify a Microsoft Web server on the Inter. The name is resolved when the DNS client software on the user39。s puter sends a request to a DNS server that the user39。) ?? apostrophe (39。 that is, that it is not assigned by Dynamic Host Configuration Protocol (DHCP). DNS servers and Active Directory domain controllers must have static addresses to ensure that clients can locate the servers reliably. To install DNS with AD DS in a new domain 1. Click Start, point to Administrative tools, and then click Server Manager. 2. In the tree pane, click Roles. 3. In the results pane, click Add Roles. 4. On the Before You Begin page, click Next. 12 5. On the Select Server Roles page, click Active Directory Domain Services, and then click Next. 13 6. On the Active Directory Domain Services page, read the information and then click Next. 7. On the Confirm Installation Selections page, read the information and then click Install. 8. After AD DS installation has pleted, on the Installation Results page, click Close this wizard and launch the Active Directory Domain Services Installation Wizard (). 14 9. On the Wele to the Active Directory Domain Services Installation Wizard page, click Next. 10. On the Choose a Deployment Configuration page, click Create a new domain in a new forest, and then click Next. 15 11. On the Name the Forest Root Domain page, type the full DNS name (such as ) for the new domain, and then click Next. 16 12. On the Set Forest Functional Level page, select Windows Server 2020, and then click Next. 13. On the Additional Domain Controller Options page, make sure that DNS server is selected, and then click Next. 17 Note A message box informs you that a delegation for this DNS server cannot be created. This is normal and expected for the first domain controller in a new forest. Click Yes to proceed. 18 14. On the Location for Database, Log Files, and SYSVOL page, type the location in which you want to install the database, log, and system volume (SYSVOL) folders, or click Browse to choose a location, and then click Next. Note You can safely accept the default locations unless you know that you have a reason to change them. 15. On the Directory Services Restore Mode Administrator Password page, type a password to use to log on to the server in Directory Services Restore Mode, confirm the password, and then click Next. 19 16. Review the Summary page, and then click Next to begin the installation. 17. After the AD DS installation pletes, click OK to restart the puter. Configuring Client Settings By default, Domain Name System (DNS) clients are configured to allow Dynamic Host Configuration Protocol (DHCP) to automatically assign the clients39。 2020 operating system. This guide explains how to install and configure a basic DNS implementation in a work that consists of a single, new Active Directory174。 2020 operating system in a small work. Windows Server 2020 uses DNS to translate puter names to work addresses. An Active Directory174。 Windows174。s name or domain membership in the following steps. 13. In Control Panel, click System and Maintenance, and then click System. 14. Under Computer name, domain, and workgroup settings, click Change settings. 26 15. On the Computer Name tab, click Change. 16. In Computer name, type the name of the puter (the host name). 27 17. Click Domain, and then type the name of the domain that you cre