DNS Console Overview
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Purpose:
The purpose of this video is to familiarize you with the various components of the DNS console manager. Specific details on the functionality of each component will be given in future videos.
You may start the DNS manager from Server Manager by selecting Tools > DNS.
Slide 1 The DNS Manager will appear. This manager allows you to manage this DNS server as well as a remote DNS server.
Slide 2 Connect to a DNS server. Right-click on DNS, select Connect to DNS server.
I will type SVR-DE-DNS1, which is my other DNS server on the network.
Slide 3 The DNS information from SVR-DE-DNS1 has been added to the
SVR-US-DNS1 console. From here I can configure the US or the DE server
Right-click on SVR-DE-DNS1 and delete the information from this console. Left-click on the server name the following is displayed:
Forward Lookup Zones – Most common type of Zone, DNS clients use this zone to provide mapping from host names to IP addresses.
Reverse Lookup Zone - DNS clients use this zone provide mapping from IP addresses to host names.
Trust Points - A trust anchor (or trust “point”) is a public cryptographic key for a signed zone.
Conditional Forwarders - A DNS server that forwards all the queries it receives based upon the name designated in the query, to the IP address of a specific DNS server or servers.
Root Hints file – If your network is connected to the internet this file contains DNS root server mapping records, for DNS servers that are located on the internet.
Forwarders - A forwarder is a Domain Name System (DNS) server on a network that is used to forward DNS queries for external DNS names to DNS servers outside that network.
Right-click on the server name, the following items are displayed:
Configure a DNS Server wizard – Assists in creating a forward and reverse lookup zone, root hints and forwarders.
Create Default Application Directory Partitions wizard - When you create an application directory partition for DNS, you can control the scope of replication for the zone that is stored in that partition
New Zone Wizard – This wizard assists you in creating a primary, secondary, Stub zone and gives you the option of storing the primary or stub zone in Active Directory
Set Aging/ Scavenging for all Zones – This is a script that provides cleanup and removal of stale resource records, which can accumulate in zone data over time.
Scavenge Stale Data Files – Command to remove all stale records on the server.
Update Server Data Files - This command forces an update to the record file, no matter where it is stored, whether in AD or a text file.
Clear Cache – Provides a way to force flush DNS server cache.
Launch nslookup – Command line tool that enables you to troubleshoot DNS problems.
5. Let’s launch nslookup and search for my other DNS server SVR-DEDNS1 “itfws001”. All I need to do is type “itfws001” and press enter to execute the command.
Now assuming you are not on a production network (one that is currently servicing users), let’s stop the DNS server and try running the same command to see what happens. Right-click on the DNS server (ITFDC01) and choose All Tasks > Stop. Now go back to nslookup and run the same command. We can now see the server is offline so nslookup was not able to query our DNS resource records.
Properties – Click properties and the following details about the server are displayed:
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