DNS course
This course equips you to handle DNS design, fixing issues, and security in business networks. Quickly resolve downtime, improve name lookups, strengthen systems, and plan zones for internal and public use in scalable, dependable tech setups. Perfect for keeping networks running smoothly in real scenarios.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain skills to design, set up, and fix DNS for reliable name resolution in internal and external networks. Master DNS setups, client configs, zone planning, and solutions for outages, old records, and slow queries. Explore security, logs, backups, and DNSSEC to ensure apps stay quick, tough, and safe.
Elevify advantages
Develop skills
- DNS troubleshooting: quickly spot and resolve name resolution problems.
- DNS design: create efficient, fast DNS systems for cloud and mixed networks.
- DNS security: protect zones using DNSSEC, filters, access controls, and defences.
- DNS records expertise: manage A, AAAA, MX, TXT, SRV, CNAME for all uses.
- Client and site DNS: tune resolvers, forwarding, caching, and backup routes.
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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