………

Module Overview

• Installing the DNS Server Role
• Configuring the DNS Server Role
• Configuring DNS Zones
• Configuring DNS Zone Transfers
• Managing and Troubleshooting DNS

Lesson 1: Installing the DNS Server Role

• Overview of the Domain Name System Role
• Overview of the DNS Namespace
• DNS Improvements for Windows Server 2008
• Demonstration: Installing the DNS Server Role
• Considerations for Deploying the DNS Server Role

Overview of the Domain Name System Role

Domain Name System is a hierarchical distributed database
• DNS is the foundation of the Internet naming scheme
• DNS supports accessing resources by using alphanumeric names
• InterNIC is responsible for managing the domain namespace
• DNS was created to support the Internet’s growing number of hosts
DNS Improvements for Windows Server 2008
New or enhanced features in the Windows Server 2008 version of DNS include:
• Background zone loading
• IP version 6 support
• Support for read-only domain controllers
• Global single names
Demonstration: Installing the DNS Server Role
In this demonstration, you will see how to install the
DNS Server role
Considerations for Deploying the DNS Server Role
-The user account must be a member of the local administrators group or equivalent
-Manually configuring the server to use a static IP address is recommended
-Manually editing the server and boot files is not recommended
-Use the DNS console or dnscmd
Active Directory-integrated DNS zones cannot be administered using a text editor
Lesson 2: Configuring the DNS Server Role
• What Are the Components of a DNS Solution?
• DNS Resource Records
• What Are Root Hints?
• What Is a DNS Query?
• What Are Recursive Queries?
• What Are Iterative Queries?
• What Is a Forwarder?
• What Is Conditional Forwarding?
• How DNS Server Caching Works
• Demonstration: Configuring the DNS Server Role
DNS resource records include:
• SOA: Start of Authority
• A: Host Record
• CNAME: Alias Record
• MX: Mail Exchange Record
• SRV: Service Resources
• NS: Name Servers
• AAAA: IPv6 DNS Record
DNS Resource Records DNS Resource Records
What Is a DNS Query?
• Queries are recursive or iterative
• DNS clients and DNS servers both initiate queries
• DNS servers are authoritative or nonauthoritative for a namespace
• An authoritative DNS server for the namespace will either:
• Return the requested IP address
• Return an authoritative “No”
• A nonauthoritative DNS server for the namespace will either:
• Check its cache
• Use forwarders
• Use root hints
A query is a request for name resolution and is directed to a DNS server

……..