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.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
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
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.
Discover the essential iptables tables through practical exercises on virtual Linux servers, configure filtering rules to block unused ports, test INPUT and OUTPUT chains with network attack simulations, analyze real-time logs to identify suspicious flows, produce a first basic functional firewall as end-of-day deliverable, while integrating real enterprise cases for immediate application of acquired skills.
Dive into creating user-defined chains with hands-on exercises on real scenarios, activate modules like conntrack to track TCP/UDP connections, implement multiport rules to secure multiple services, use the recent match against port scans, debug with iptables-save and restore, generate persistent configurations via systemd, end with a group exercise simulating a protected enterprise infrastructure.
Master advanced NAT by practicing masquerade for private networks, configure DNAT redirections to securely expose internal services, integrate logging with NFLOG for fine-grained traceability, test on multi-interface topologies with virtual VLANs, analyze routing impacts via tcpdump, produce a complete NAT setup with monitoring, apply to enterprise cases like site-to-site VPN securing.
Optimize rules against DoS attacks with limit and hashlimit, integrate dynamic blacklists via ipset, automate configurations with Bash scripts and cron jobs, test resilience under load with hping3, review performance via perf counters, deploy a production-ready firewall as final deliverable, consolidate learning through a complete challenge simulating an enterprise security breach.
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.
For the smooth delivery of the Training iptables - Effectively Secure Linux Servers program, the following equipment is required:
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.
Assessment of skills acquired during the Training iptables - Effectively Secure Linux Servers program is performed through:
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.
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.
« cool, j'ai appris des trucs »
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
« 😊👍 »
« bien 👍 »
« Allan Busi t'es au top, continue comme ça. formation géniale »
« cool, j'ai appris des trucs »
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
« 😊👍 »
« bien 👍 »
« Allan Busi t'es au top, continue comme ça. formation géniale »
« cool, j'ai appris des trucs »
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
« 😊👍 »
« bien 👍 »
« Allan Busi t'es au top, continue comme ça. formation géniale »
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.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
Infrastructure & RéseauxIndustry-certified
Infrastructure & RéseauxIndustry-certified
Infrastructure & RéseauxIndustry-certified
Infrastructure & RéseauxIndustry-certified
Infrastructure & RéseauxIndustry-certified
Infrastructure & RéseauxIndustry-certified
Développement WebIndustry-certified
Développement WebIndustry-certified
Développement WebIndustry-certified
Développement WebIndustry-certified
Développement WebIndustry-certified
Développement WebIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Cloud ComputingIndustry-certified
Outils collaboratifsIndustry-certified
Outils collaboratifsIndustry-certified
Outils collaboratifsIndustry-certified
Outils collaboratifsIndustry-certified
Outils collaboratifsIndustry-certified
Outils collaboratifsIndustry-certified30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.