DNS Deep Dive
What you'll learn
- How to configure authoritative name servers, cache only servers and resolvers
- How to troubleshoot DNS issues
- How to choose, register and manage your own domain names
- How to secure your DNS infrastructure
- How to analyse the DNS protocol using Wireshark
- How to construct your own DNS packets from scratch using Scapy
- How to configure DNS servers using the bind9 service
- How to capture DNS traffic using tcpdump
- How to configure DNS caching using the nscd service
- How to set up your own lab using VirtualBox
- How to automate the configuration of your DNS infrastructure using bash scripting
- How to perform name queries using dig and nslookup
Requirements
- Basic IT Skills
- A fundamental understanding of the TCP/IP suite
- A good knowledge of the Linux operating system
- A computer system with ideally 16GB of RAM and 200GB of disk space
Description
Who is this course for
This course is mainly for network engineers, IT technicians, system administrators, cyber security professionals, computer science students and anybody who is interested in starting a career in the IT industry.
What you will learn
How to configure authoritative name servers, cache only servers and resolvers
How to troubleshoot DNS issues
How to choose, register and manage your own domain names
How to secure your DNS infrastructure
How to analyse the DNS protocol using Wireshark
How to construct your own DNS packets from scratch using Scapy
How to configure DNS servers using the bind9 service
How to capture DNS traffic using tcpdump
How to configure DNS caching using the nscd service
How to set up your own lab using VirtualBox
How to automate the configuration of your DNS infrastructure using bash scripting
How to perform name queries using dig and nslookup
Prerequisites
Basic IT Skills
A fundamental understanding of the TCP/IP suite
A good knowledge of the Linux operating system
A computer system with ideally 16GB of RAM and 200GB of disk space
FAQs
Do I need any previous experience?
Any previous experience in networking, system administration and computer systems will definitely be helpful though not necessary.
Do I get any support with this course?
Yes, any question you have will be answered by email in the most timely manner.
I am an experienced network engineer with previous experience in DNS. How do I benefit from this course?
The knowledge contained in this course will definitely enhance your existing understanding of the DNS protocol. What's more, the custom scripts, cheat sheets and configuration guides included in the course will help you in your day-to-day work.
Will I get any resources with this course?
Yes, you will get an assortment of resources in the form of scripts, configuration guides, cheatsheets and infographics.
Will I get a certificate of completion at the end?
Yes, you will indeed!
Who this course is for:
- This course is mainly for network engineers, IT technicians, system administrators, cyber security professionals, computer science students and anybody who is interested in starting a career in the IT industry.
Instructor
- 4.5 Instructor Rating
- 1,250 Reviews
- 8,071 Students
- 3 Courses
From the front lines of IT support to the forefront of global cybersecurity, I’ve built my career on a relentless drive for excellence and impact.
With nearly a decade in the IT industry, I skyrocketed from 1st-line support to becoming a 3rd-line Network Security Engineer, earning an arsenal of industry certifications along the way. In 2019, my deep expertise and contributions to the cybersecurity community earned me the prestigious ‘Check Point CheckMates Champion’ status, a recognition from one of the world’s top firewall vendors.
In 2020, I joined Amazon Web Services (AWS) as a Cloud Security Engineer, where I quickly became one of the most highly awarded security engineers globally, securing four AWS Subject Matter Expert (SME) accreditations in critical security domains:
✅ AWS Shield – Advanced DDoS protection
✅ AWS Certificate Manager – Cryptographic security and PKI
✅ AWS GuardDuty – Intelligent threat detection
✅ AWS Identity and Access Management – Enterprise-scale identity security
My journey didn’t stop there. Recognizing my deep expertise in network and cloud security, I stepped into a lead security architecture role at the European Parliament, shaping the security posture of one of the most high-profile institutions in the world.
Outside of work, I thrive on OSINT challenges, competing in Search Party CTFs to help locate missing persons and expanding Offensive Security’s Google Hacking Database with new Google Dorks.
My mission today? To share my knowledge and help you succeed.