Zero-Trust Approach to DNS
RCCE students will learn Domain Name System security including DNS architecture, DNSSEC, DNS over HTTPS/TLS, DNS tunneling detection, DNS sinkholing, and DNS-based threat detection. RCCE students will learn to configure DNS infrastructure securely, implement DNSSEC for zone integrity, detect and block DNS-based attacks including cache poisoning, DNS tunneling, domain generation algorithms, and DNS rebinding, configure DNS-based security controls for threat blocking, analyze DNS logs for indicators of compromise, deploy DNS monitoring for threat detection, and respond to incidents involving DNS infrastructure compromise or abuse. This zero-trust course applies modern security principles including least privilege, continuous verification, and explicit trust evaluation. At an expert level, RCCE students will learn to implement zero-trust architectures that assume breach and verify every access request regardless of network location. Students build practical zero-trust implementations that align with organizational security modernization goals.
- Security Engineers building defensive controls
- Security Analysts and Blue Team members
- Systems Administrators with security responsibilities
- GRC and Risk Professionals supporting controls
- Professionals implementing Zero-Trust Approach to DNS
- Apply zero-trust principles to privilege decisions and elevation
- Explain Course Overview: Zero-Trust DNS Security fundamentals
- Design a scalable privilege management architecture with policy and enforcement
- Apply zero-trust principles to privilege decisions and elevation, including Hierarchical namespace resolution, and Never trust, always verify.
- Execute hands-on tasks for root zone — covering 13 root server clusters worldwide, Generic TLDs (.com, .org, .net).
- Execute hands-on tasks for tld servers — covering Generic TLDs (.com, .org, .net).
- Execute hands-on tasks for authoritative servers — covering Hold actual zone data records.
- Execute hands-on tasks for recursive resolvers — covering Client-facing query resolution.
- Execute hands-on tasks for client stub
- Execute hands-on tasks for iterative query path — covering Resolver queries each tier sequentially.
- Execute hands-on tasks for caching layer — covering TTL-governed response caching.
| Module 01 | Zero-Trust Approach to DNS |
| Module 02 | Course Overview: Zero-Trust DNS Security |
| Module 03 | DNS Architecture |
| Module 04 | Zero-Trust Principles |
| Module 05 | DNS Architecture Fundamentals |
| Module 06 | Root Zone |
| Module 07 | TLD Servers |
| Module 08 | Authoritative Servers |
| Module 09 | Recursive Resolvers |
| Module 10 | Client Stub |
| Module 11 | Iterative Query Path |
| Module 12 | Caching Layer |
| Module 13 | Record Type |
| Module 14 | Security Relevance |
All hands-on labs run on Rocheston Rose X OS. Students practice zero-trust approach to dns by implementing the controls discussed in class, with a focus on real-world deployment, monitoring, and validation.
- Lab 1: Apply zero-trust principles to privilege decisions and elevation
- Lab 2: Explain Course Overview: Zero-Trust DNS Security fundamentals
- Lab 3: Design a scalable privilege management architecture with policy and enforcement
- Lab 4: Apply zero-trust principles to privilege decisions and elevation
- Lab 5: Design a scalable privilege management architecture with policy and enforcement
Upon successful completion of this course, students will receive an official RCCE Course Completion Certificate for Zero-Trust Approach to DNS, verifiable through the Rocheston certification portal.
- Full access to all course materials and slide decks
- Hands-on lab access on Rocheston Rose X OS environment
- Access to Rocheston CyberNotes
- Access to Rocheston Zelfire — EDR/XDR SIEM platform
- Access to Rocheston Raven — online cyber range exercise platform
- Access to Rocheston Vulnerability Vines AI