A Host A record maps a host name to an IP address. These records help you easily identify another server in a forward lookup zone. Host records improve query performance in multiple-zone environments, and you can also create a Pointer PTR record at the same time.
A Pointer PTR record creates the appropriate entry in the reverse lookup zone for reverse queries. If you did not choose to create your PTR record at that time, you can do it at any point. For example, an Alias record can have several records that point to a single server in your environment. This is a common approach if you have both your Web server and your mail server running on the same machine. Mail Exchange records help you identify mail servers within a zone in your DNS database.
With this feature, you can prioritize which mail servers will receive the highest priority. Creating MX records will help you keep track of the location of all of your mail servers. During the promotion, if a DNS server is not found, you will have the option of installing it. Expand and click Roles Figure B. When configuring your DNS server, you must be familiar with the following concepts: Forward lookup zone Reverse lookup zone Zone types A forward lookup zone is simply a way to resolve host names to IP addresses.
Editor's Picks. Set the Primary Server to your primary nameserver:. Next, click on the Name Servers tab. Remove anything currently listed, and click Add and enter your nameservers i.
When done, click OK to close the window. You are now ready to set up your zone records. This will help secure your server from a variety of DNS recursion attacks. You can test that your DNS server is properly serving DNS from a Windows command prompt, by using the nslookup command in this format:.
For example:. The command will, however, tell you if you have entered the parameters incorrectly or you have specified a bogus role. By comparison, the full installations of WS2K8 offer the ability to add a role from the command line, but in that case the role name is DNS-Server-Full-Role if used in this fashion.
Before the role is added, the server system should have a static IP address, a DNS suffix, and if you plan to have it function in an Active Directory-Integrated DNS environment, go ahead and join to the domain before adding the role. The DNS server in the core installation option has no direct console. You can interact with the dnscmd and netsh commands, but for zone configuration, you will likely find the normal dnsmgmt.
However, if you foresee many like-configured DNS servers, scripting the build and configuration out will make rapid deployment seamless. Rick has years of IT experience and focuses on virtualization, Windows-based server administration, and system hardware. Editor's Picks.
0コメント