Windows Server 2012: Configuring Dns

Front 1

round robin load balancing

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You set up ________________ by creating multiple resource records with the same hostname but different IP addresses for multiple computers. Depending on the options that you select, the DNS server responds with the addresses of one of the host computers.

Front 2

caching-only

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__________ servers are DNS name servers that only perform queries, cache the answers, and return the results. They are not authoritative for any domains, and the information that they contain is limited to what has been cached while resolving queries.

Front 3

General Tab

Back 3

What tab is this located?
•The Status indicator and the associated Pause button let you see and control whether this zone can be used to answer queries. When the zone is running, the server can use it to answer client queries; when it’s paused, the server won’t answer any queries it gets for that particular zone.

Front 4

General Tab

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What tab is this located?
•The Type indicator and its Change button allow you to select the zone type. The options are Standard Primary, Standard Secondary, and AD-Integrated. (See “Introducing DNS Database Zones” earlier in this chapter.) As you change the type, the controls you see below the horizontal dividing line change too. For primary zones, you’ll see a field that lets you select the zone filename; for secondary zones, you’ll get controls that allow you to specify the IP addresses of the primary servers. But the most interesting controls are the ones you see for AD Integrated zones. When you change to the AD Integrated zones, you have the ability to make the dynamic zones Secure Only.

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General Tab

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What tab is this located?
•The Replication indicator and its Change button allow you to change the replication scope if the zone is stored in Active Directory. You can choose to replicate the zone data to any of the following: •All DNS servers in the Active Directory forest
•All DNS servers in a specified domain
•All domain controllers in the Active Directory domain (required if you use Windows 2000 domain controllers in your domain)
•All domain controllers specified in the replication scope of the application directory partition

Front 6

General Tab

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What tab is this located?
•The Dynamic Updates field gives you a way to specify whether you want to support Dynamic DNS updates from compatible DHCP servers. As you learned earlier in the section “Dynamic DNS and Non-Dynamic DNS,” the DHCP server or DHCP client must know about and support Dynamic DNS in order to use it, but the DNS server has to participate too. You can turn dynamic updates on or off, or you can require that updates be secured.

Front 7

Start Of Authority (SOA) Tab

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What tab is this located?
•The Serial Number field indicates which version of the SOA record the server currently holds. Every time you change another field, you should increment the serial number so that other servers will notice the change and get a copy of the updated record.

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Start Of Authority (SOA) Tab

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What tab is this located?
•The Primary Server and Responsible Person fields indicate the location of the primary name server (NS) for this zone and the email address of the administrator responsible for the maintenance of this zone, respectively. The standard username for this is hostmaster.

Front 9

Start Of Authority (SOA) Tab

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What tab is this located?
•The Refresh Interval field controls how often any secondary zones of this zone must contact the primary zone server and get any changes that have been posted since the last update.

Front 10

Start Of Authority (SOA) Tab

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What tab is this located?
•The Retry Interval field controls how long secondary servers will wait after a zone transfer fails before they try again. They’ll keep trying at the interval you specify (which should be shorter than the refresh interval) until they eventually succeed in transferring zone data.

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Start Of Authority (SOA) Tab

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What tab is this located?
•The Expires After field tells the secondary servers when to throw away zone data. The default of 1 day (24 hours) means that a secondary server that hasn’t gotten an update in 24 hours will delete its local copy of the zone data.

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Start Of Authority (SOA) Tab

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What tab is this located?
•The Minimum (Default) TTL field sets the default TTL for all RRs created in the zone. You can assign specific TTLs to individual records if you want.

Front 13

Start Of Authority (SOA) Tab

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What tab is this located?
•The TTL For This Record field controls the TTL for the SOA record itself.

Front 14

WINS

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The ____ tab allows you to control whether this zone uses ____ forward lookups or not. These lookups pass on queries that DNS can’t resolve to ____ for action. This is a useful setup if you’re still using ____ on your network. You must explicitly turn this option on with the Use ____Forward Lookup check box in the ____ tab for a particular zone.

Front 15

Zone Transfers Tab

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What tab is this located?
•The Allow Zone Transfers check box controls whether the server answers zone transfer requests for this zone at all—when it’s not checked, no zone data is transferred. The Allow Zone Transfers selections are as follows: •To Any Server allows any server anywhere on the Internet to request a copy of your zone data.
•Only To Servers Listed On The Name Servers Tab (the default) limits transfers to servers you specify. This is a more secure setting than To Any Server because it limits transfers to other servers for the same zone.
•Only To The Following Servers allows you to specify exactly which servers are allowed to request zone transfers. This list can be larger or smaller than the list specified on the Name Servers tab.

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Zone Transfers Tab

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What tab is this located?
•The Notify button is for setting up automatic notification triggers that are sent to secondary servers for this zone. Those triggers signal the secondary servers that changes have occurred on the primary server so that the secondary servers can request updates sooner than their normally scheduled interval. The options in the Notify dialog box are similar to those in the Zone Transfers tab. You can enable automatic notification and then choose either Servers Listed On The Name Servers Tab or The Following Servers.

Front 17

DNS aging and DNS scavenging

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Windows Server 2012 DNS supports two features called __________ and _________ . These features are used to clean up and remove stale resource records.