Blair Rampling is a senior systems administrator and system architect. David Dalan is a technical trainer and training manager for a leading international technical support services call-center firm.

• Introduction 1Part I: How DNS Makes the Internet Go ’Round 5Chapter 1: The Basics of DNS 7Chapter 2: DNS Namespaces 21Chapter 3: The DNS Request Process 35Chapter 4: Facilitating Other Applications with DNS 53Part II: Working with DNS Clients 63Chapter 5: Configuring a DNS Client 65Chapter 6: Using the DNS Clients on Your System 79Part III: Working with DNS Servers 101Chapter 7: Installing a Microsoft DNS Server 103Chapter 8: Unix Domain Name Servers 137Part IV: The Details: Setting Up Your DNS Zones 159Chapter 9: The Basics: Zones and Records 161Chapter 10: Using Subdomains 181Part V: Security and Advanced DNS Tricks 189Chapter 11: An Antidote for a Poisoned Cache: DNS Security 191Chapter 12: What Else Can DNS Do? 215Chapter 13: “It Doesn’t Work!” (Troubleshooting) 237Part VI: The Part of Tens 249Chapter 14: Ten DNS Services and Resources 251Chapter 15: Ten Things Even Experienced People Do to Make DNS Break 257Chapter 16: The Top Ten Tips for Maintaining a Manageable DNS Server 263Chapter 17: The Top Ten DNS Server Design Considerations 269Appendix A: Using the DNSCMD Utility 277Appendix B: Using Webmin for BIND Administration 295Appendix C: Other DNS Server Applications 317Index 321

Blair Rampling is a senior systems administrator and system architect. David Dalan is a technical trainer and training manager for a leading international technical support services call-center firm.

• Introduction 1Part I: How DNS Makes the Internet Go ’Round 5Chapter 1: The Basics of DNS 7Chapter 2: DNS Namespaces 21Chapter 3: The DNS Request Process 35Chapter 4: Facilitating Other Applications with DNS 53Part II: Working with DNS Clients 63Chapter 5: Configuring a DNS Client 65Chapter 6: Using the DNS Clients on Your System 79Part III: Working with DNS Servers 101Chapter 7: Installing a Microsoft DNS Server 103Chapter 8: Unix Domain Name Servers 137Part IV: The Details: Setting Up Your DNS Zones 159Chapter 9: The Basics: Zones and Records 161Chapter 10: Using Subdomains 181Part V: Security and Advanced DNS Tricks 189Chapter 11: An Antidote for a Poisoned Cache: DNS Security 191Chapter 12: What Else Can DNS Do? 215Chapter 13: “It Doesn’t Work!” (Troubleshooting) 237Part VI: The Part of Tens 249Chapter 14: Ten DNS Services and Resources 251Chapter 15: Ten Things Even Experienced People Do to Make DNS Break 257Chapter 16: The Top Ten Tips for Maintaining a Manageable DNS Server 263Chapter 17: The Top Ten DNS Server Design Considerations 269Appendix A: Using the DNSCMD Utility 277Appendix B: Using Webmin for BIND Administration 295Appendix C: Other DNS Server Applications 317Index 321

Blair Rampling is a senior systems administrator and system architect. David Dalan is a technical trainer and training manager for a leading international technical support services call-center firm.

• Introduction 1Part I: How DNS Makes the Internet Go ’Round 5Chapter 1: The Basics of DNS 7Chapter 2: DNS Namespaces 21Chapter 3: The DNS Request Process 35Chapter 4: Facilitating Other Applications with DNS 53Part II: Working with DNS Clients 63Chapter 5: Configuring a DNS Client 65Chapter 6: Using the DNS Clients on Your System 79Part III: Working with DNS Servers 101Chapter 7: Installing a Microsoft DNS Server 103Chapter 8: Unix Domain Name Servers 137Part IV: The Details: Setting Up Your DNS Zones 159Chapter 9: The Basics: Zones and Records 161Chapter 10: Using Subdomains 181Part V: Security and Advanced DNS Tricks 189Chapter 11: An Antidote for a Poisoned Cache: DNS Security 191Chapter 12: What Else Can DNS Do? 215Chapter 13: “It Doesn’t Work!” (Troubleshooting) 237Part VI: The Part of Tens 249Chapter 14: Ten DNS Services and Resources 251Chapter 15: Ten Things Even Experienced People Do to Make DNS Break 257Chapter 16: The Top Ten Tips for Maintaining a Manageable DNS Server 263Chapter 17: The Top Ten DNS Server Design Considerations 269Appendix A: Using the DNSCMD Utility 277Appendix B: Using Webmin for BIND Administration 295Appendix C: Other DNS Server Applications 317Index 321