{"id":202,"date":"2026-05-02T02:15:37","date_gmt":"2026-05-02T00:15:37","guid":{"rendered":"https:\/\/eryann.fr\/?p=202"},"modified":"2026-05-02T14:10:11","modified_gmt":"2026-05-02T12:10:11","slug":"fiche-creation-des-ou-organisation-active-directory","status":"publish","type":"post","link":"https:\/\/eryann.fr\/index.php\/windows\/fiche-creation-des-ou-organisation-active-directory\/","title":{"rendered":"Fiche cr\u00e9ation des OU : organisation Active Directory"},"content":{"rendered":"\n<p>Les <strong>OU (Unit\u00e9s d\u2019Organisation)<\/strong> permettent de structurer un domaine Active Directory.<br>Elles servent \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>organiser les utilisateurs et les ordinateurs<\/li>\n\n\n\n<li>appliquer des GPO de mani\u00e8re cibl\u00e9e<\/li>\n\n\n\n<li>d\u00e9l\u00e9guer des droits d\u2019administration<\/li>\n<\/ul>\n\n\n\n<p>Objectif :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>cr\u00e9er des OU correctement<\/li>\n\n\n\n<li>comprendre leur r\u00f4le<\/li>\n\n\n\n<li>\u00e9viter les erreurs de conception<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Cr\u00e9ation des OU (bloc unique PowerShell)<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code># =========================================================<br># CREATION D'UNE OU<br># =========================================================<br><br>New-ADOrganizationalUnit -Name \"Utilisateurs\" -Path \"DC=breizh,DC=local\"<br><br>New-ADOrganizationalUnit -Name \"Postes\" -Path \"DC=breizh,DC=local\"<br><br># =========================================================<br># CREATION D'UNE OU AVEC PROTECTION<br># =========================================================<br><br>New-ADOrganizationalUnit -Name \"Admin\" -Path \"DC=breizh,DC=local\" -ProtectedFromAccidentalDeletion $true<br><br># =========================================================<br># CREATION D'UNE SOUS-OU<br># =========================================================<br><br>New-ADOrganizationalUnit -Name \"Comptabilite\" -Path \"OU=Utilisateurs,DC=breizh,DC=local\"<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Explication d\u00e9taill\u00e9e<\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. Qu\u2019est-ce qu\u2019une OU<\/h3>\n\n\n\n<p>Une OU est un conteneur logique dans Active Directory.<\/p>\n\n\n\n<p>Elle permet de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>regrouper des objets (utilisateurs, ordinateurs)<\/li>\n\n\n\n<li>appliquer des strat\u00e9gies (GPO)<\/li>\n\n\n\n<li>organiser le domaine<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. Pourquoi structurer en OU<\/h3>\n\n\n\n<p>Sans OU :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tout est m\u00e9lang\u00e9 dans le domaine<\/li>\n\n\n\n<li>impossible d\u2019appliquer des r\u00e8gles sp\u00e9cifiques<\/li>\n\n\n\n<li>administration difficile<\/li>\n<\/ul>\n\n\n\n<p>Avec OU :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>organisation claire<\/li>\n\n\n\n<li>s\u00e9curit\u00e9 cibl\u00e9e<\/li>\n\n\n\n<li>gestion simplifi\u00e9e<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Cr\u00e9ation via interface graphique<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c9tapes<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ouvrir <strong>Active Directory Users and Computers (dsa.msc)<\/strong><\/li>\n\n\n\n<li>Clic droit sur le domaine (<code>breizh.local<\/code>)<\/li>\n\n\n\n<li><strong>New \u2192 Organizational Unit<\/strong><\/li>\n\n\n\n<li>Nommer l\u2019OU<\/li>\n\n\n\n<li>Cocher <strong>Protect container from accidental deletion<\/strong><\/li>\n\n\n\n<li>Valider<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explication<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la protection emp\u00eache la suppression accidentelle<\/li>\n\n\n\n<li>une OU peut contenir d\u2019autres OU (structure hi\u00e9rarchique)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Exemple de structure <\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>breizh.local<br>\u2502<br>\u251c\u2500\u2500 Utilisateurs<br>\u2502   \u251c\u2500\u2500 Administratif<br>\u2502   \u251c\u2500\u2500 Technique<br>\u2502<br>\u251c\u2500\u2500 Postes<br>\u2502   \u251c\u2500\u2500 PC<br>\u2502   \u251c\u2500\u2500 Portables<br>\u2502<br>\u251c\u2500\u2500 Serveurs<br>\u2502<br>\u2514\u2500\u2500 Groupes<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Pourquoi cette structure<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>s\u00e9paration utilisateurs \/ machines<\/li>\n\n\n\n<li>application GPO diff\u00e9rente<\/li>\n\n\n\n<li>gestion plus simple<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Cas pratiques<\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Appliquer une GPO uniquement aux utilisateurs<\/h3>\n\n\n\n<p> lier la GPO \u00e0 l\u2019OU \u00ab\u00a0Utilisateurs\u00a0\u00bb<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Appliquer une GPO uniquement aux postes<\/h3>\n\n\n\n<p> lier la GPO \u00e0 l\u2019OU \u00ab\u00a0Postes\u00a0\u00bb<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">S\u00e9parer les services<\/h3>\n\n\n\n<p>OU par service (RH, IT, comptabilit\u00e9)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Gestion des objets dans les OU<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">D\u00e9placer un utilisateur<\/h3>\n\n\n\n<p>Interface :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>glisser-d\u00e9poser<\/li>\n<\/ul>\n\n\n\n<p>PowerShell :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Move-ADObject -Identity \"CN=Jean Dupont,OU=Users,DC=breizh,DC=local\" -TargetPath \"OU=Comptabilite,OU=Utilisateurs,DC=breizh,DC=local\"<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9l\u00e9gation de droits<\/h2>\n\n\n\n<p>Une OU permet de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>donner des droits \u00e0 un utilisateur<\/li>\n\n\n\n<li>sans lui donner acc\u00e8s \u00e0 tout le domaine<\/li>\n<\/ul>\n\n\n\n<p>Exemple :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>un technicien peut g\u00e9rer uniquement l\u2019OU \u00ab\u00a0Postes\u00a0\u00bb<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Erreurs fr\u00e9quentes<\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">OU mal organis\u00e9e<\/h3>\n\n\n\n<p>Probl\u00e8me :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GPO inefficaces<\/li>\n\n\n\n<li>confusion<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e9langer utilisateurs et ordinateurs<\/h3>\n\n\n\n<p>Probl\u00e8me :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GPO incorrectes<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Supprimer une OU<\/h3>\n\n\n\n<p>Probl\u00e8me :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>perte d\u2019objets<\/li>\n<\/ul>\n\n\n\n<p>Solution :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>activer la protection<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Bonnes pratiques<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>s\u00e9parer utilisateurs et ordinateurs<\/li>\n\n\n\n<li>cr\u00e9er une structure simple<\/li>\n\n\n\n<li>nommer clairement les OU<\/li>\n\n\n\n<li>activer la protection<\/li>\n\n\n\n<li>anticiper les besoins GPO<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9capitulatif<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00c9l\u00e9ment<\/th><th>R\u00f4le<\/th><\/tr><\/thead><tbody><tr><td>OU<\/td><td>organisation<\/td><\/tr><tr><td>GPO<\/td><td>application de r\u00e8gles<\/td><\/tr><tr><td>domaine<\/td><td>structure globale<\/td><\/tr><tr><td>utilisateurs<\/td><td>objets AD<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Les OU sont essentielles pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>organiser un domaine<\/li>\n\n\n\n<li>appliquer des strat\u00e9gies<\/li>\n\n\n\n<li>simplifier l\u2019administration<\/li>\n<\/ul>\n\n\n\n<p>Une bonne structure permet :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>une meilleure s\u00e9curit\u00e9<\/li>\n\n\n\n<li>une gestion efficace<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Suite logique<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>gestion des utilisateurs AD<\/li>\n\n\n\n<li>groupes de s\u00e9curit\u00e9<\/li>\n\n\n\n<li>GPO avanc\u00e9es<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><audio autoplay=\"\"><\/audio><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les OU (Unit\u00e9s d\u2019Organisation) permettent de structurer un domaine Active Directory.Elles servent \u00e0 : Objectif : Cr\u00e9ation des OU (bloc unique PowerShell) Explication d\u00e9taill\u00e9e 1. Qu\u2019est-ce qu\u2019une OU Une OU est un conteneur logique dans Active Directory. Elle permet de : 2. Pourquoi structurer en OU Sans OU : Avec OU : Cr\u00e9ation via interface [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[13],"tags":[],"class_list":["post-202","post","type-post","status-publish","format-standard","hentry","category-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fiche cr\u00e9ation des OU : organisation Active Directory - Eryann Breizh SecOps<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eryann.fr\/index.php\/windows\/fiche-creation-des-ou-organisation-active-directory\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fiche cr\u00e9ation des OU : organisation Active Directory - Eryann Breizh SecOps\" \/>\n<meta property=\"og:description\" content=\"Les OU (Unit\u00e9s d\u2019Organisation) permettent de structurer un domaine Active Directory.Elles servent \u00e0 : Objectif : Cr\u00e9ation des OU (bloc unique PowerShell) Explication d\u00e9taill\u00e9e 1. 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