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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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30 free minutes with a training advisor — no commitment.
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Artificial Intelligence training in Mesa in September 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
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Professional Training training in Memphis in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Don't let this gap widen
Sans maîtrise de la gestion des utilisateurs Linux via useradd, les erreurs de configuration se multiplient, exposant les systèmes à des failles critiques.
65 % des incidents de sécurité sur Linux sont liés à une mauvaise gestion des comptes utilisateurs, avec un coût moyen de 8 500 € par brèche en downtime et amendes.
Une entreprise perd ainsi jusqu'à 15 heures par semaine en dépannage urgent, fragilisant sa compétitivité et menaçant la carrière des administrateurs responsables.
Chaque mois sans expertise, le risque d'attaque explose, transformant une simple négligence en catastrophe business.
The Maîtriser la gestion des utilisateurs Linux avec useradd : Guide complet pour les administrateurs 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 Maîtriser la gestion des utilisateurs Linux avec useradd : Guide complet pour les administrateurs 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 Maîtriser la gestion des utilisateurs Linux avec useradd : Guide complet pour les administrateurs 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.
Présentation du fonctionnement des utilisateurs et groupes dans Linux. Comprendre /etc/passwd, /etc/shadow, /etc/group. Processus d’authentification. Risques et enjeux pour la sécurité.
Syntaxe de base, options principales (-m, -d, -s, -u, -g, -G, -c, etc.), création d’un utilisateur standard et d’utilisateurs avec des exigences spécifiques. Affectation de shell, home directory, UID/GID, etc.
Gestion des skel (fichiers modèles), personnalisation de /etc/skel, scripts post-creation, ajout automatiques à des groupes, gestion des mots de passe et politiques associées, contraintes d’expiration. Suppression et modification sécurisée des utilisateurs (userdel, usermod).
Target audience
Administrateurs système, techniciens IT, développeurs ou toute personne souhaitant gérer efficacement les utilisateurs sur un système Linux.
Prerequisites
Connaissances de base de la ligne de commande Linux.
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