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Training iptables - Effectively Secure Linux Servers

Ref: RRK160
10 people max.
5500€ HT / per person
−15% from 2 people−30% from 3 people−50% from 5 people
Pay in 3 installments · +$170/day onsite · +$500 with certification exam
5 journées
distanciel

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Learning objectives

  • Master the basics of iptables to protect enterprise servers
  • Configure simple and effective filtering rules
  • Deploy certified network security policies
  • Analyze traffic flows with iptables tools
  • Implement defenses against common attacks
  • Develop professional skills in Linux cybersecurity

The Learni story

Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.

Don't let this gap widen

Why this program matters

  • Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.

  • Organizations that don't train their talents on key topics see their competitiveness drop.

  • Every quarter without training is a gap widening with competitors who invest.

  • The cost of inaction quickly exceeds that of well-targeted training.

Allan Busi
Allan Busi

Learni Trainer · Expert

73%productivity gap
×3cost of inaction

Program

Module 1iptables Fundamentals: Architecture and Filtering Tables (filter, nat, mangle tables)

Discover the iptables architecture through practical exercises on Linux virtual machines, configure the INPUT, OUTPUT, and FORWARD chains, explore essential tables with iptables -L and iptables -t nat -L commands, perform basic connectivity tests, produce an initial configuration report to validate beginner-level network security skills.

Module 2Basic iptables Rules: Filtering by IP, Ports, and Protocols (IPv4, TCP/UDP)

Learn to create precise ACCEPT and DROP rules, target source and destination IP addresses, manage TCP/UDP ports with NEW and ESTABLISHED states, test in real-time with tcpdump and netcat, simulate authorized/denied access scenarios, generate syslog logs to monitor traffic, consolidate your skills in basic filtering.

Module 3NAT and Redirections in iptables: Masquerading and Port Forwarding (SNAT, DNAT, PREROUTING)

Dive into NAT with POSTROUTING and PREROUTING configurations, implement address masquerading for private networks, redirect HTTP ports to internal servers, verify translations with iptables -t nat -L -v -n, apply to enterprise cases like secure remote access, produce NAT flow diagrams for in-depth visual understanding.

Module 4Advanced iptables Security: Anti-Spoofing and Rate Limiting (Recent Matches, Limit Module)

Strengthen defenses against IP spoofing with strict rules, apply the limit module to counter SYN floods, integrate stateful matches like INVALID and RELATED, debug with iptables -nvL, simulate DDoS attacks in a controlled lab, optimize rules for optimal server performance, export persistent rule scripts via iptables-save.

Module 5Practical iptables Cases: Production Deployment and Troubleshooting (Persistence, Firewall Integration)

Deploy a complete iptables firewall on a simulated enterprise server, integrate with systemd for reboot persistence, resolve common failures via logs and counters, test against real vulnerabilities like Nmap scans, finalize with a hybrid network security project, deliver a certifying deliverable including scripts and audit report.

Evaluation method

  • Interactive quizzes at the end of each day on iptables rules
  • Practical case studies with trainer feedback
  • Final certifying exam on firewall deployment

Learning method

  • Hands-on exercises on dedicated Linux environments
  • Pedagogical methods adapted to beginner level
  • Video support and post-training resources
  • Groups limited to 10 for personalized follow-up

Methods, materials and delivery

The Training iptables - Effectively Secure Linux Servers program is delivered onsite or remote (blended-learning, e-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 iptables - Effectively Secure Linux 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 iptables - Effectively Secure Linux 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

Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.

Verified reviews

What our learners

4.9 · +100 verified reviews
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
Read all reviews
Our method

Training quality, guaranteed at every step

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.

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