Domain Name Service (DNS) Configuration

With the rapidly increasing size of the global TCP/IP Internet, TCP/IP system and network managers must understand the intricacies of the Internet Domain Name System (DNS). DNS is a distributed hierarchical database providing such information as: hostname to IP address mapping, IP address to hostname mapping, mail exchangers, and information about locating nameservers in the Internet.

This class provides a technical and administrative overview of DNS, as well as practical information on how to configure a DNS nameserver and DNS problems.

You will learn:

• Basics of DNS
• How to use NSLOOKUP
• How to configure your system as a DNS nameserver
• How to diagnose, troubleshoot, and resolve DNS problems

Topics to be covered include:

• Overview of the DNS architecture
• Definition of the types of DNS nameservers
  • Caching-only nameserver
  • Primary nameserver
  • Secondary nameserver
• DNS Configuration files
  • File formats
  • Record descriptions
• Troubleshooting techniques for DNS problems
  • NSLOOKUP

Class length

• 1 day

Audience

• System Managers
• Network Managers

Prerequisites

• Basic TCP/IP networking concepts

Additional Information

• An excerpt of an older version of the presentation for this class is available from Opus One's library in the Presentations pages.