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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.
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The Training: Master iptables: Secure and Configure a Linux Firewall 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.
To ensure the quality of the Training: Master iptables: Secure and Configure a Linux Firewall training, Learni provides the following 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.
The assessment of skills acquired during the Training: Master iptables: Secure and Configure a Linux Firewall training is carried out through:
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.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Presentation of the role of a firewall, Netfilter architecture under Linux, packet journey and chains, connection states and kernel modules, introduction to iptables syntax. Exercises inspecting local network traffic and initial filtering tests.
Advanced rule syntax: tables, chains, interface targeting, filtering by IP, ports, protocols. Connection states (state, conntrack), user and group filtering, fine control of inbound and outbound traffic, log management and logging, prevention of common attacks (DoS, spoofing, port scanning). Real cases: block/allow services, limit attacks, practical exercises.
Backup and restoration of configurations, boot-time automation (iptables-save, iptables-restore, custom scripts), troubleshooting and rule analysis (iptables -L, -n, -v), NAT (SNAT, DNAT, masquerading), multi-zone/routing configuration, port redirections, integration into complex architectures (DMZ, VPN, hosting). Audit workshops, reset, configuration replication. Discussions on nftables, migration, and future perspectives.
Target audience
System administrators, network technicians, security engineers, IT professionals wishing to secure their Linux infrastructures
Prerequisites
Proficiency with Linux command-line usage, basic TCP/IP networking knowledge
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