Is the training Qualiopi certified?

Yes, Learni is a Qualiopi-certified training organization. This certification guarantees the quality of our courses and enables funding through OPCO and other mechanisms.

What is the duration of the Training DNS - Securing and Optimizing DNS Servers training?

The Training DNS - Securing and Optimizing DNS Servers training takes place over 28 hours. The program is structured in progressive modules for optimal skill development.

How can I fund my training?

Our courses are eligible for OPCO funding. Learni supports you through the funding process. A personalized quote is available upon request.

What are the prerequisites for this training?

The prerequisites for the Training DNS - Securing and Optimizing DNS Servers training are: Mastery of TCP/IP networks, advanced Linux administration, basics of DNS resolution. A preliminary interview validates your eligibility.

Is the training available in person?

Yes, the Training DNS - Securing and Optimizing DNS Servers training is available in in-person. The format can be adapted to your needs (inter, intra, custom).

Training DNS - Securing and Optimizing DNS Servers | Learni

The story of Learni

Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.

Configure your training

Response within 24hNo commitment100% free

7 spots remaining for the next session

FormatParticipantsDateDetails

Which format do you prefer?

Methods, approaches, and teaching resources

The Training DNS - Securing and Optimizing DNS Servers training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.

The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.

Teaching resources provided

To ensure the quality of the Training DNS - Securing and Optimizing DNS Servers training, Learni provides the following teaching resources:

Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, video projector or interactive touchscreen (for remote sessions)
Training environments installed on workstations or accessible online
Course materials, practical exercises, and supplementary resources
Post-training access to materials and teaching resources

For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.

* contact us for remote feasibility** ratio varies depending on the training followed

Assessment methods

The assessment of skills acquired during the Training DNS - Securing and Optimizing DNS Servers training is carried out through:

During training: case studies, practical exercises, and professional scenarios
At the end of training: self-assessment questionnaire and skills evaluation by the trainer
After training: training completion certificate detailing acquired skills

Training accessibility

Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.

Training access terms and deadlines

Training objectives

Master advanced configuration of professional DNS servers with BIND

Implement DNSSEC to secure zones and prevent attacks

Optimize DNS performance with high availability and load balancing

Diagnose and resolve complex DNS incidents in production

Integrate DNS into certification-oriented hybrid cloud architectures

Develop automation scripts for enterprise DNS management

Training program

Module 1DNS Configuration: Primary/Secondary Servers with BIND (zones, views, advanced RR)

Complete installation of a primary DNS server under BIND9 on Linux, precise definition of forward and reverse zones, advanced management of records like SRV, NAPTR, TXT for SPF/DKIM, configuration of views for segmenting internal/external clients, practical exercises on virtual lab with VirtualBox, validation by dig/nslookup tests, production of optimized zone files ready for production.

Module 2DNS Security: DNSSEC Implementation and Anti-Abuse Protection (signing, TSIG)

Generation of cryptographic keys for DNSSEC, signing zones with dnssec-keygen and dnssec-signzone, configuration of validators on recursive clients, deployment of TSIG for secure zone transfers, simulation of amplification/DDoS attacks with tools like dnsperf, exercises on resolving broken chains of trust, security audit via tools like dnsviz.net, deliverable of a fully operational DNSSEC zone.

Module 3DNS Optimization: High Availability, Caching, Anycast (PowerDNS, Unbound)

Deployment of anycast DNS clusters for global resilience, configuration of caching resolvers with Unbound/recursive BIND, performance tuning via rate-limiting and prefetching, load balancing integration with Keepalived/HAProxy, comparative benchmarks on real load with dnsbench, enterprise practical cases on migrating legacy to scalable setups, TTL and negative query optimization, production of basic monitoring dashboards.

Module 4DNS Troubleshooting: Advanced Diagnostics and Automation (scripts, monitoring)

In-depth log analysis with tcpdump/Wireshark for hidden failures, resolution of incidents like missing glue records or cache poisoning, development of Bash/Python scripts for automated audits and zone backups, monitoring integration with Prometheus/Grafana for real-time alerts, concrete enterprise case studies on DNS outages, exercises on simulated failovers, finalization of the ongoing project with complete report and maintenance plan.