Professional training – Networking

Advanced DNS

Hands-on Advanced DNS course: you work on Recursive and authoritative servers, Zones, delegation, secondary servers and DNSSEC and take away knowledge you can apply right away.

Duration
6 hours, one session
Level
Intermediate
Format
Online or on-site
Language
German or English
Certificate
Certificate of attendance

Overview

In “Advanced DNS” we combine fundamentals and practice: you get to know Recursive and authoritative servers, Zones, delegation, secondary servers and DNSSEC, apply what you learn in exercises and receive templates and checklists for your own use.

A stable, secure network is the prerequisite for almost every IT service, and with cloud connectivity, remote work, Wi-Fi and segmentation, complexity keeps growing. Our Advanced DNS courses are aimed at network administrators, system owners and security teams who need to design, configure and secure networks and get them running again quickly after incidents. We combine protocol understanding with practical configuration: you work in a provided lab with real or virtual devices and analyze traffic yourself. The course runs online or on site, lasts one day and is offered at a fixed price per participant.

The course is delivered live – either online in a virtual classroom or on-site in our training rooms in Munich, Salzburg, Berlin, Augsburg, Hanover, Bremen, Stuttgart and Kaiserslautern. We can also run it exclusively for your team.

Focus areas of the course

Recursive and authoritative serversZones, delegation, secondary serversDNSSECSplit-horizon DNSDoT and DoHTroubleshooting with dig and delv

Who is this course for?

  • Network administrators and network engineers
  • System administrators with network responsibility
  • Security and firewall owners
  • IT architects and technical project managers

What you will be able to do

  • You know the key topics of Advanced DNS – Recursive and authoritative servers, Zones, delegation, secondary servers, DNSSEC, Split-horizon DNS, DoT and DoH and Troubleshooting with dig and delv – and can apply them in practice.
  • You understand how Advanced DNS works and place it correctly in the overall network.
  • You configure Advanced DNS securely, traceably and with documentation.
  • You narrow down Advanced DNS issues systematically and resolve them.
  • You plan changes so that availability and security are preserved.

Course outline

Module 1 Fundamentals and architecture of Advanced DNS
  • Key terms, protocols and operating principles
  • Where Advanced DNS fits in the overall network and the OSI model
  • Typical use cases and design decisions
  • Differences from alternative technologies and vendors
Module 2 Focus areas: Advanced DNS
  • Recursive and authoritative servers
  • Zones, delegation, secondary servers
  • DNSSEC
  • Split-horizon DNS
  • DoT and DoH
  • Troubleshooting with dig and delv
Module 3 Configuration and commissioning
  • Building the lab environment and base configuration
  • Step-by-step setup of Advanced DNS
  • Planning addressing, segmentation and routing cleanly
  • Documenting, backing up and versioning configurations
Module 4 Security, operations and monitoring
  • Hardening according to common best practices
  • Access control, logging and hardening
  • Monitoring availability, load and error rates
  • Carrying out changes and updates in a controlled way
Module 5 Troubleshooting and hands-on labs
  • Systematic layer-by-layer approach to incidents
  • Reproducing and fixing typical Advanced DNS failure patterns
  • Analyzing traffic and log files
  • Case studies from real network environments
Module 6 Transfer to your daily work
  • Exercise based on a realistic case
  • Typical mistakes and how to avoid them
  • Checklist and templates to take away
  • Open questions, outlook and resources for further learning

Prerequisites

Basic IT and networking knowledge (IP addresses, switches, routers) is helpful. Entry-level courses require no prior knowledge. Basic knowledge of the topic is helpful.

Technical requirements

Laptop with a current browser and SSH client; lab environment and device access for Advanced DNS are provided by us.

Dates & locations

For every location we suggest a date roughly four weeks ahead. Your preferred date is always possible.

  • Munich Wed, 16 December 2026 6 hrs Request
  • Salzburg Fri, 11 December 2026 6 hrs Request
  • Berlin Mon, 14 December 2026 6 hrs Request
  • Augsburg Wed, 16 December 2026 6 hrs Request
  • Hanover Tue, 15 December 2026 6 hrs Request
  • Bremen Tue, 15 December 2026 6 hrs Request
  • Stuttgart Tue, 15 December 2026 6 hrs Request
  • Kaiserslautern Thu, 10 December 2026 6 hrs Request
  • Online Wed, 16 December 2026 6 hrs Request

Frequently asked questions

Who is the Advanced DNS course for?

It is for network and system administrators, security owners and architects who plan, operate or secure Advanced DNS. Beginners learn the concepts, while experienced engineers deepen design, troubleshooting and automation. In a short pre-call we clarify your priorities.

Do we work on real devices?

For Advanced DNS we use a lab with real or virtualized network devices and analysis tools. You configure on your own, provoke failures and evaluate traffic. Your company's production networks are not touched.

How much does “Advanced DNS” cost?

The course costs a flat €949 plus VAT per participant – whether online or on-site. This includes 6 hours of live training with a trainer, course materials, a lab environment and a certificate of attendance.

Can I suggest my own date?

Yes. For every location we suggest a date roughly four weeks ahead. In the request form you can always describe your preferred date or period in free text – we check availability and get back to you within one working day.

Is the course online or on-site?

Both are possible: live online in a virtual classroom or on-site in Munich, Salzburg, Berlin, Augsburg, Hanover, Bremen, Stuttgart and Kaiserslautern. We can also run the course exclusively for your team.

Can the course be tailored to our team?

Yes. Tailor-made courses cost approx. €4,500 more, depending on the topic and by arrangement. We agree content, examples and exercises with you in advance.

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