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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: Mastering iptables - Advanced Security and Firewall Management on Linux 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: Mastering iptables - Advanced Security and Firewall Management on Linux 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: Mastering iptables - Advanced Security and Firewall Management on Linux 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.
Recap of OSI and TCP/IP models, introduction to network flow management. Presentation of iptables: tables, chains, rules. Command syntax, installation on various Linux distributions. Exploration of default policies, backup and restoration of configurations. Setting up a simple firewall: allowing, denying, connection states.
Advanced operations on filter, nat, and mangle tables. Creating complex filtering rules (port ranges, source/destination IPs, protocols), connection state management, masquerading/NAT, rate limiting, logging (LOG), additional modules. Dynamic log analysis, troubleshooting, traffic diagnosis with iptables and complementary tools (tcpdump, netstat).
Implementing multi-point security strategies (web servers, SMTP, databases). Case studies: securing an Internet-facing server, flows between VMs/containers. Introduction to ip6tables for IPv6. Startup automation: backup/restoration, custom scripts, integration with systemd and configuration tools. Professional best practices, compliance, basic intrusion testing. Synthesis: building a complete firewall based on business requirements.
Target audience
System administrators, network engineers, and IT professionals wishing to effectively secure Linux servers.
Prerequisites
Good knowledge of Linux system administration, basics of IP networking.
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