DNS Course
Master DNS design, troubleshooting, and security in real-world enterprise networks. Learn to fix outages fast, optimize name resolution, harden infrastructure, and plan internal and public zones for scalable, reliable technology environments.

4 to 360 hours of flexible workload
valid certificate in your country
What Will I Learn?
This concise DNS Course shows you how to design, configure, and troubleshoot reliable name resolution for internal and public services. Learn practical DNS architecture, client configuration, and zone planning, then apply proven methods to fix outages, stale records, and slow lookups. You also cover security, logging, redundancy, and DNSSEC so you can keep critical applications fast, resilient, and protected.
Elevify Differentials
Develop Skills
- DNS troubleshooting: pinpoint and fix real-world name resolution failures fast.
- DNS design: build scalable, low-latency architectures for hybrid cloud networks.
- DNS security: harden zones with DNSSEC, RPZ, ACLs, and attack mitigations.
- DNS records mastery: plan A, AAAA, MX, TXT, SRV, and CNAME for public and internal use.
- Client and branch DNS: optimize resolvers, forwarding, caching, and failover paths.
Suggested Summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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