Training DNS - Securing and Optimizing DNS Servers

Specialist course · Minimum level required

$6,300

  • 4 days
  • Onsite
  • 10 people max.
Ref: ESI442
10 people max.
$6,300
In-company rate: from $10,710 for the whole teamExpertise rate: $1,575 per day, reflecting the difficulty levelAWS, Azure or OVH infrastructure: from $158 / day extra
On-site and certification exam on quote
4 days
Onsite

Don't let this gap widen

Why this program matters

  • Without advanced DNS mastery, companies lose 30% productivity due to recurring resolution outages, with downtime costing 5k€/hour on average for SMEs.

  • Absent DNSSEC protections expose organizations to 65% of amplification DDoS attacks, generating 200k€ losses per incident according to Gartner 2024.

  • Your teams risk career obsolescence against cloud-native infrastructures.

  • Every quarter without DNS optimization widens a fatal competitive gap, multiplying customer frustrations by 4.

Nawfel ABED, Learni trainer · Cybersecurity expert
Nawfel ABED

Learni trainer · Cybersecurity expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

41,306 programs · 25 countries

  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft
  • Atos

Every program built with a dedicated engineer

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  • Microsoft Dynamics 365
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  • Palo Alto Networks
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  • VMware
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  • Databricks
  • Snowflake
  • OVHcloud
  • Notion
  • AMD
  • Apple

Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft, Microsoft and Atos.

DNS 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

Program

DNS curriculum: 4 modules over 4 days

Module 1 : DNS 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 2 : DNS 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 3 : DNS 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 4 : DNS 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.

How DNS skills are assessed

  • Multiple-choice quiz to validate learning outcomes at the end of the training
  • Continuous assessment through practical DNS exercises
  • Presentation of the ongoing project for a secure DNS cluster

How the DNS course is taught

  • Courses led by an expert trainer in DNS infrastructures
  • Practical exercises on real enterprise virtual labs
  • Progressive ongoing project for certification-oriented skills
  • Complete course materials provided to each participant

DNS training: access and practical arrangements

The Training DNS - Securing and Optimizing DNS Servers program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training DNS - Securing and Optimizing DNS Servers program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training DNS - Securing and Optimizing DNS Servers program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Our method

How Learni guarantees the quality of your DNS training

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

DNS: frequently asked questions

Which tools are used in DNS training?+
Hands-on work runs on zones, views, advanced RR, signing, TSIG and powerDNS. Those tools come from the DNS program itself, delivered on site over 4 days, so participants practise on the stack they will use at work.
What can participants do after DNS training?+
They can master advanced configuration of professional DNS servers with BIND, implement DNSSEC to secure zones and prevent attacks and optimize DNS performance with high availability and load balancing. Those are the stated objectives of the DNS program at Advanced level, checked by the end-of-session assessment.
What does the DNS program cover, day by day?+
Day 1: DNS Configuration: Primary/Secondary Servers with BIND (zones, views, advanced RR). Day 2: DNS Security: DNSSEC Implementation and Anti-Abuse Protection (signing, TSIG). Day 3: DNS Optimization: High Availability, Caching, Anycast (PowerDNS, Unbound). Day 4: DNS Troubleshooting: Advanced Diagnostics and Automation (scripts, monitoring). The DNS program runs over 4 days, delivered on site.
How is DNS training assessed?+
Assessment relies on multiple-choice quiz to validate learning outcomes at the end of the training, continuous assessment through practical DNS exercises and presentation of the ongoing project for a secure DNS cluster. Learni issues a completion certificate together with the individual assessment report at the end of the DNS program, which an L&D team can file as evidence.
How much does DNS training cost per participant?+
DNS training costs $6,300 per participant. For an in-company team, the flat rate starts at $10,710 for the whole group, up to 8 people. AWS, Azure or OVH infrastructure is extra, from $158 per day. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does DNS training take?+
4 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for DNS training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before DNS training?+
Mastery of TCP/IP networks, advanced Linux administration, basics of DNS resolution.
Is a certificate issued after DNS training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for DNS training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
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