Introduction to DNS Training

Live Online & Classroom Enterprise Training

Introduction to DNS provides foundational knowledge of how the Domain Name System works, including domain resolution, DNS records, server types, and troubleshooting basic DNS issues.

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What is Introduction to DNS Training about?

This course introduces learners to the core concepts of the Domain Name System (DNS), the critical service that enables human-readable domain names to be translated into IP addresses. Participants will explore DNS architecture, common record types, resolution processes, and basic configuration concepts. The course also covers practical troubleshooting techniques and real-world use cases to build confidence in managing DNS-related tasks.

What are the objectives of Introduction to DNS Training ?

Understand how DNS works and why it is essential
Identify common DNS components and record types
Explain the DNS resolution process
Recognize common DNS issues and troubleshooting methods
Gain basic knowledge of DNS configuration and management

Who is Introduction to DNS Training for?

Students pursuing IT or networking careers
Entry-level network and system administrators
Technical support and helpdesk professionals
Cybersecurity beginners
Anyone interested in internet infrastructure

What are the prerequisites for Introduction to DNS Training?

Prerequisites:

Basic understanding of computers and the internet
Familiarity with IP addresses and networking basics
General knowledge of operating systems
Willingness to learn technical concepts
No prior DNS experience required

Learning Path:

Networking Fundamentals
Introduction to DNS
TCP/IP Concepts
Network Troubleshooting Basics
Introduction to Cybersecurity

Related Courses:

Networking Fundamentals
TCP/IP Essentials
Introduction to Cybersecurity
Linux Fundamentals

Available Training Modes

Live Online Training

2 Days

Course Outline Expand All

Expand All

Module 1: Introduction to DNS

What is DNS?

Importance of DNS in networking and the internet.

Evolution and history of DNS.

Module 2: DNS Architecture and Components

Root, TLD, and Authoritative DNS Servers.

Recursive DNS Resolvers.

Forward vs. Reverse DNS Lookup.

Module 3: DNS Resolution Process

How a domain name is translated into an IP address.

Recursive vs. Iterative queries.

Caching and Time-to-Live (TTL).

Module 4: DNS Record Types and Their Functions

A, AAAA, CNAME, MX, TXT, NS, PTR, and SOA records.

How to create and manage DNS records.

Module 5: Configuring DNS Servers

Installing and configuring a DNS server (Windows/Linux).

Public vs. Private DNS servers.

Configuring DNS clients.

Module 6: DNS Security and Best Practices

DNS Security Extensions (DNSSEC).

Protecting against DNS Spoofing and Cache Poisoning.

Secure DNS (DoH, DoT).

Implementing Access Control and Rate Limiting.

Module 7: DNS Troubleshooting and Optimization

Common DNS issues and debugging techniques.

Using nslookup, dig, and other DNS tools.

Optimizing DNS for performance and reliability.

Who is the instructor for this training?

The trainer for this Introduction to DNS Training has extensive experience in this domain, including years of experience training & mentoring professionals.

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