Syllabus

DNS Interactive Lessons

More Courses

Keep learning with more courses from the path.

Learn about network sharing with rsync, scp, nfs, and more.

Learn about networking basics and the TCP/IP model.

Learn about subnets and how to do subnet arithmetic!

Learn how packets are routed across networks!

Before you begin

How does a DNS lookup work?

The course follows a query through clients, resolvers, root and authoritative name servers, explaining how components cooperate to return an answer.

Which DNS tools will I learn?

You will learn practical lookup and diagnostic concepts using tools such as dig and nslookup, along with local resolver configuration and /etc/hosts.

Is DNS only used for website addresses?

No. DNS stores multiple record types used for services, mail, verification, reverse lookups, and other forms of name-based discovery.

Build practical skills in real online environments with structured learning paths, interactive labs, and AI guidance.