Avoiding DNS pitfalls with Windows 2000 and Active

1
Avoiding DNS pitfalls with Windows 2000 and Active

• Thomas W Shinder, M.D., MCSE

2
Introduction

• The Windows 2000 DNS Server Interactions with
  Active Directory and other networking services
• Thomas W. Shinder Author, Trainer and principle
  consultant for TACTEAM Dallas, Texas

3
Topics of Discussion

• DNS Client-side Resolver
• DNS and Active Directory Integration
• DNS and DHCP Integration
• DNS and WINS Integration

4
DNS Client Side Resolver

• DHCP Client Service Dependent
• Positive and Negative Caching
• Unqualified Query Resolution
• DNS Server Search Order
• Multihomed Search Order

5
Active Directory Integration

• All Primary DNS Server
• Supports Secondaries
• No Separate Replication Topology
• Per Attribute Replication
• Secure Dynamic Updates
• Fast Transfers
• Preferred Configuration

6
DHCP Integration

• Automatic A and PTR Updates
• Windows 2000 DHCP Clients
• Downlevel Windows Clients
• RAS Clients
• Multihomed Clients
• Time-to-Live Values
• DnsUpdateProxy Group

7
WINS Integration

• WINS Forward Lookups
• WINS Reverse Lookups (WINS-R)
• WINS Referral Zones
• Zone Transfer Issues

8
Case Study ISA Server

• ISA Server Unable to Create Reports
• Internal Adapter with Internal and External DNS
  settings
• The Fix is in!

9
DNS is Mission Critical

• DNS is the root of multiple networking problems
• Plan DNS infrastructure in advance
• Test DNS configuration
• Use DNS Best Practices

10
Recommended Reading

• Windows 2000 Server Resource KitISBN1572318058
  
• Troubleshooting Windows 2000 TCP/IPISBN192899411
  3
• Windows 2000 DNSISBN 0735709734
• Configuring ISA Server 2000 Building Firewalls
  with Windows 2000ISBN1928994296