Microsoft windows 2000 DNS manual Com Yyy.com Zzz.com

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forwards the query to the DNS server containing the zzz.com. zone (Step 2). This server finds a delegation to the third.zzz.com. in the zzz.com. zone. It sends the query to that server (Step3) receives back the response (Step 4), passes it to the previous server (Step 5), which finally returns it to the client (Step 6).

 

 

 

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com.

 

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yyy.com

 

 

 

 

 

 

 

 

 

 

zzz.com

 

 

someother.com.

2

9

External world / Global Network

 

 

 

 

 

 

YYY corporation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZZZ corporation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Proxy Server

VPN

VPN

 

 

Firewall

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

10

 

 

 

 

10

1

 

YYY

ZZZ

2

 

 

 

.

corporation

corporation

zzz.com.

yyy.com.

yyy.com.

 

 

 

 

 

11

first.yyy.com. second.yyy.com. third.yyy.com. first.zzz.com. second.zzz.com. third.zzz.com.

1

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Zone.Name.

Primary Zone

Zone.Name.

Secondary Zone

A DNS Server, Firewall, VPN or Proxy Server

A DNS Client

Now consider the example of a corporate computer that needs to resolve an external name (that does not belong to its company).

A computer in the YYY Corporation needs to open a web page on the www.someother.com. machine. Since it is a proxy client it sends a request to the proxy server (Step 1) after it finds that the name www.someother.com. is external based on the PAC file. The proxy server sends a DNS query to the assigned DNS server (Step 2) which recursively resolves the query. It sends a query to the root server (Step 3) and receives a reference to the server that contains the com. zone (Step 4). Then it sends the query to that server (Step 5) and receives a reference to the server that contains a zone someother.com. (Step 6). It sends a query to the latter (Step 7), which resolves the query and returns the response to the server

Windows 2000 White Paper

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Contents Windows 2000 DNS Microsoft Corporation. All rights reserved Contents Designing a DNS Namespace for the Active Directory Summary Page DNS Fundamentals Standards and Additional Reading Name Services in WindowsDraft-skwan-gss-tsig-04.txt GSS Algorithm for Tsig GSS-TSIG History of DNSHierarchy of DNS Domain Names Structure of DNSCom Edu Gov Mil Army Microsoft Int/net/orgMit Mydomain DNS and InternetDistributing the Database Zone Files and Delegation TTLMicrosoft My domain ftp Ntserver Replicating the DNS databaseQuerying the Database NEW Features of the Windows 2000 DNSName Server Resolver Root-server Gov Whitehouse.gov Time to Live for Resource Records Updating the DNS DatabaseActive Directory Storage and Replication Integration Active Directory Service Storage ModelWindows 2000 White Paper Controlling Access to Zones Replication ModelZone Type Conversions Protocol Description Incremental Zone TransferZone Log File Dynamic UpdateMaster DNS Server Slave DNS Server Ixfr and DS IntegrationDynamic Update of DNS Records Update AlgorithmDhcp Client Mixed EnvironmentSecure Dynamic Update Statically Configured ClientRAS Client Client ReregistrationEstablishing a security context by passing security tokens Secure Dynamic Update Policy Controlling Update Access to Zones and Names DnsUpdateProxy GroupAging and Scavenging DNS Admins GroupAging and Scavenging Parameters DefaultEnableScavenging Scavenging Period DescriptionRecord Life Span Scavenging Algorithm Configuring Scavenging ParametersInteroperability Considerations Unicode Character SupportDomain Locator Finish IP/DNS Compatible Locator DNS Record Registration and Resolver RequirementsLdap.tcp.dc.msdcs.DnsDomainName Kerberos.tcp.dc.msdcs.DnsDomainName IP/DNS DC Locator Algorithm Finish Discovering Site specific DCsCaching Resolver Fully-Qualified Query Name ResolutionUnqualified Single-Label Query Using Global Suffix Search OrderUnqualified Multi-Label Query Using Primary and Per-adapter Domain NamesUnqualified Single-Label Query Scenarios Name Resolution ScenariosMicrosoft Implementation of Negative Caching Fully-Qualified Query ScenariosDNS Server List Management Negative CachingAdministrative Tools WMI Support for DNS Server AdministrationDNS Manager Interoperability Issues Using Wins and Winsr RecordsUsing UTF-8 Characters Format DNS Server Performance Receiving Non-RFC Compliant DataUtilization Hardware components Sizing Server Capacity PlanningChoosing Names Internet Access ConsiderationsWindows 2000 White Paper Windows 2000 White Paper Windows 2000 White Paper VPN Com Yyy.com Zzz.com Windows 2000 White Paper Primary Zone YYY corporation ZZZ corporation VPN Firewall Computer Names Characters in NamesPer-Adapter Naming Full computer nameIntegrating ADS with Existing DNS Structure Domain name and sites. Active Directory domain name DNS Migration to Windows 2000 DNSPartitioning, and Replication Choosing your Zones Deploying DNS to Support Active DirectoryWins Referral Using Automatic ConfigurationIxfr Ixfr For More InformationWindows 2000 White Paper
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