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About this document
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- 33 pages
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- Computer Science, Networking
This document explains what DNS is, how it works, and its role in Active Directory. It covers the structure of DNS namespaces, delegation of authority, and DNS queries. It also discusses the integration of DNS with Active Directory, including the necessary records and setup steps.
What's inside
- What is DNS?
- DNS Namespace
- Delegation of Responsibility
- DNS Queries
- Active Directory and DNS
- DNS Setup for Active Directory
Who it is for: For students studying Computer Science, Information Technology, or Networking. (Undergraduate)
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Summary
DNS and Active Directory are explained. Students learn what DNS is, how it works, and how Active Directory uses it.
What is DNS?
DNS is a distributed database. It maps host names to IP addresses. It replaces the hosts file. The DNS namespace is a hierarchical tree of domains.
Delegation of Authority
Delegation of authority is vital. Name servers for a parent domain must know about new domains. Name servers for the new domain must be configured correctly.
DNS Records
There are several types of DNS records. These include A, NS, MX, SOA, CNAME, PTR and SRV records. Each type of record has a specific purpose.
Setting up DNS
There are steps to configure DNS on the first and subsequent domain controllers. There are hints and caveats for setting up DNS. There are instructions for a practical exercise.
Key terms
- DNS
- The Domain Name System.
- Active Directory
- A directory service created by Microsoft for Windows domain networks.
- SRV record
- A DNS record that specifies information about available services.
- Delegation of Authority
- The process of giving name servers for a parent domain information about new domains.
- Zone
- A part of the DNS namespace for which a name server is responsible.
- Forwarders
- DNS servers to which queries are forwarded if the server is not authoritative for the query.
Questions this document helps with
- What is the DNS namespace?
- How does Active Directory use DNS?
- What are the steps to configure DNS on domain controllers?
Summary written with AI from the document's text.
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