LAB : CONFIGURING DNS ZONES
Exercise 8.1 Installing DNS
Overview
Domain Name System (DNS) is already installed on RWDC01. However, we need a second DNS server for future exercises. Therefore, during this exercise, you install a second DNS server on Server01.
Mindset
DNS is a naming service that is used by TCP/IP network and is an essential service used by the Internet. For years, Windows servers have included the DNS role.
Exercise8.2 Creating Primary and Secondary Zones
Overview
During this exercise, you create primary and secondary zones on RWDC01 and Server01.
Mindset
For the Contoso Corporation, you are building a new network. Therefore, you need to install DNS to support your network. You have three primary sites. When you use primary and secondary zones, you can have only one primary zone. The other sites have to be secondary zones. Therefore, you will have one primary zone and two secondary zones.
Exercise8.3 Creating an Active Directory Integrated Zone
Overview
During this exercise, you create an Active Directory Integrated zone.
Mindset
You decide that you want to improve the DNS system for your company and you are thinking of switching to Active Directory-Integrated zones. Active Directory-Integrated zones are fault tolerant, they offer better security, and they have more efficient replication. With these features, you don't have to worry about primary and secondary zones because each DNS server acts as a master.
Exercise8.4 Configuring Zone Delegation
Overview
In this exercise, you delegate a subdomain called support under fabrikam.com on a different DNS server.
Mindset
Subdomains allow you to break up larger domains into smaller, more manageable domains. Then by using delegation, you place the subdomain on another DNS server.
Exercise8.5 Creating a Stub Zone
Overview
In this exercise, you create a stub zone that points directly to another DNS server.
Mindset
A stub zone is a copy of a zone that contains only necessary resource records-Start of Authority (SOA), Name Server (NS), and Address/Host (A) record-in the master zone and acts as a pointer to the authoritative name server.
Exercise8.6 Configuring Forwarding and Conditional Forwarding Zones
Overview
To improve performance, you can control which DNS servers requests are forwarded to when performing naming resolution by configuring forwarding and creating conditional forwarding zones. In this exercise, you configure forwarding and create a conditional forwarding zone.
Mindset
By default, when a client contacts a DNS server and the DNS server does not know the answer, it performs an iterative query to find the answer (which means it first contacts the root domain and additional DNS servers until it finds the authoritative DNS server for the zone). However, DNS servers can be configured to be forwarded to another DNS server or a conditional forwarder based on the domain name queried.
Exercise8.7 Configuring Zone Transfers
Overview
By configuring zone transfers, you can control to which servers DNS information is copied.
Mindset
You need to configure zone transfers between multiple DNS servers. What are the three types of zone transfer available?
LAB REVIEW QUESTIONS
Completion time 10 minutes
1. In Exercise 8.2, what must you create before creating the secondary zone?
2. In Exercise 8.3, what is the prerequisite to have Active Directory-Integrated zones?
3. In Exercise 8.6, how do you configure all queries that a DNS server cannot directly resolve be forwarded to your ISP's DNS server?
4. In Exercise 8.6, where did you configure forwarding?
5. In Exercise 8.7, how did you configure zone transfers?
Lab Challenge Using the DNSCMD Command to Manage Zones
Overview
To complete this challenge, you must demonstrate how to use the DNSCMD command to manage zones.