{"id":91,"date":"2026-09-13T20:56:39","date_gmt":"2026-09-13T20:56:39","guid":{"rendered":"https:\/\/neranis.com\/?post_type=nrn_service&#038;p=91"},"modified":"2026-09-13T20:56:39","modified_gmt":"2026-09-13T20:56:39","slug":"hardening-des-repertoires-et-administration-securisee","status":"publish","type":"nrn_service","link":"https:\/\/neranis.com\/fr\/services\/directory-hardening-and-secure-administration\/","title":{"rendered":"Durcissement des r\u00e9pertoires et administration s\u00e9curis\u00e9e"},"content":{"rendered":"<section class=\"wp-block-group nrn2-section nrn2-page-hero is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-breadcrumb wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/\">Accueil<\/a> <span aria-hidden=\"true\">\/<\/span> <a href=\"https:\/\/neranis.com\/fr\/expertise\/\">Expertise<\/a> \/ <a href=\"https:\/\/neranis.com\/fr\/expertise\/gestion-des-identites-et-des-acces\/\">Identit\u00e9 et acc\u00e8s<\/a><\/p>\n\n\n<div class=\"wp-block-group nrn2-service-top nrn2-hero-layout-r3 is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-hero-split-copy is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"nrn2-kicker wp-block-paragraph\">IAM \/ IAM-05<\/p>\n\n\n<h1 class=\"wp-block-heading nrn2-title\">Durcissement des r\u00e9pertoires et administration s\u00e9curis\u00e9e<\/h1>\n\n\n<p class=\"nrn2-lead wp-block-paragraph\">Durcir les services qui g\u00e8rent les identit\u00e9s et les autorisations afin de r\u00e9duire les privil\u00e8ges excessifs et les acc\u00e8s administratifs non s\u00e9curis\u00e9s.<\/p>\n\n<\/div>\n\n\n<figure class=\"wp-block-image size-full nrn2-context-image nrn2-visual-asset-service-family-iam\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"500\" src=\"https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-iam.webp\" alt=\"\" class=\"wp-image-244\" srcset=\"https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-iam.webp 1600w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-iam-300x94.webp 300w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-iam-1024x320.webp 1024w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-iam-768x240.webp 768w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-iam-1536x480.webp 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-service-top is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-service-intro is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">QUAND C'EST UTILE<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Une r\u00e9ponse cibl\u00e9e<br>\u00e0 un besoin d\u00e9fini.<\/h2>\n\n\n<p class=\"nrn2-body-lg wp-block-paragraph\">Propri\u00e9taire du r\u00e9pertoire ou de l\u2019infrastructure ; constatations d\u00e9favorables lors des audits, r\u00e9pertoires h\u00e9rit\u00e9s ou absence de s\u00e9paration entre les usages administratifs.<\/p>\n\n\n<div class=\"wp-block-buttons nrn2-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/neranis.com\/fr\/contact\/\">Discutez de ce service<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-facts is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">EN UN COUP D'\u0152IL<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Famille<\/strong><br><a href=\"https:\/\/neranis.com\/fr\/expertise\/gestion-des-identites-et-des-acces\/\">Identit\u00e9 et acc\u00e8s<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Engagement<\/strong><br>Mise en \u0153uvre<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9f\u00e9rence<\/strong><br>IAM-05<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section nrn2-canvas is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">PORT\u00c9E ET R\u00c9SULTATS<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Ce que couvre la mission.<\/h2>\n\n<\/div>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-delivery-grid is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-delivery-card is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Port\u00e9e<\/h3>\n\n\n<ul class=\"wp-block-list nrn2-list\">\n<li>R\u00f4les et d\u00e9l\u00e9gation<\/li>\n\n\n<li>Les comptes de service et les protocoles<\/li>\n\n\n<li>stations d'administration, proc\u00e9dures de log et de sauvegarde\/r\u00e9cup\u00e9ration<\/li>\n\n<\/ul>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-delivery-card is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Livrables<\/h3>\n\n\n<ul class=\"wp-block-list nrn2-list\">\n<li>Base de configuration<\/li>\n\n\n<li>plan de r\u00e9duction des privil\u00e8ges<\/li>\n\n\n<li>documents et tests d\u2019acc\u00e8s\/r\u00e9cup\u00e9ration<\/li>\n\n<\/ul>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-delivery-card nrn2-evidence is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Preuve de r\u00e9ception<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Les restrictions sont valables sans compromettre l\u2019utilisation l\u00e9gitime ; la d\u00e9l\u00e9gation et les comptes d\u2019urgence sont document\u00e9s.<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">LIVRAISON<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Comment le travail est structur\u00e9.<\/h2>\n\n<\/div>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-two-col is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-prose is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Approche<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Inventorier les identit\u00e9s et les applications ; d\u00e9finir les r\u00f4les et les politiques ; piloter avec un groupe ; tester les chemins d'autorisation, de refus et de r\u00e9cup\u00e9ration ; d\u00e9ployer et transf\u00e9rer.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Pr\u00e9requis et responsabilit\u00e9s<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Client : propri\u00e9taires des applications, RH, administrateurs, groupes pilotes et comptes d'urgence. Fournisseur : conception, int\u00e9gration et tests dans le cadre des autorisations convenues.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-prose is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Facteurs de port\u00e9e<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Utilisateurs, r\u00e9pertoires, applications, protocoles, comptes \u00e0 privil\u00e8ges, compatibilit\u00e9 et migration. Les licences, les cl\u00e9s physiques et les op\u00e9rations r\u00e9currentes sont distinctes.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Questions \u00e0 clarifier<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Quel r\u00e9pertoire et quelles d\u00e9pendances ? Qui le g\u00e8re ? Existe-t-il une sauvegarde utilisable et test\u00e9e ?<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section nrn2-compact is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-boundaries is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">LIMITES IMPORTANTES<\/p>\n\n\n<p class=\"nrn2-body-lg wp-block-paragraph\">Les m\u00e9canismes Active Directory, LDAP et FreeIPA ne sont pas interchangeables ; v\u00e9rifiez la compatibilit\u00e9, les sauvegardes et leur impact.<\/p>\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9cup\u00e9ration et l'acc\u00e8s d'urgence sont test\u00e9s avant le d\u00e9ploiement. L'authentification, l'autorisation et la gestion des acc\u00e8s privil\u00e9gi\u00e9s sont des couches compl\u00e9mentaires.<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">EN PRATIQUE<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Situations illustratives.<\/h2>\n\n<\/div>\n\n\n<p class=\"nrn2-section-lead wp-block-paragraph\">Ces exemples d\u00e9crivent des engagements possibles et des r\u00e9sultats cibles. Il ne s'agit pas de r\u00e9f\u00e9rences clients ni de r\u00e9sultats obtenus.<\/p>\n\n<\/div>\n\n\n<details class=\"wp-block-details nrn2-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sc\u00e9nario 01<\/summary>\n<p class=\"wp-block-paragraph\">Un environnement Active Directory utilise des comptes privil\u00e9gi\u00e9s sur les postes de travail expos\u00e9s. Projet : r\u00e9partition des r\u00f4les et r\u00e9duction des droits d\u00e9l\u00e9gu\u00e9s. Objectif : des parcours d\u2019administration contr\u00f4l\u00e9s et un plan de migration des d\u00e9pendances h\u00e9rit\u00e9es.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details nrn2-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sc\u00e9nario 02<\/summary>\n<p class=\"wp-block-paragraph\">Un environnement Linux pr\u00e9sente des droits sudo locaux incoh\u00e9rents. Projet : centraliser la politique et l\u2019acc\u00e8s \u00e0 l\u2019aide d\u2019un r\u00e9pertoire appropri\u00e9. Objectif : v\u00e9rifier les privil\u00e8ges nomm\u00e9s, les refus explicites et un compte local d\u2019urgence g\u00e9r\u00e9.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details nrn2-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Contexte technologique et de r\u00e9f\u00e9rence<\/summary>\n<p class=\"wp-block-paragraph\">Active Directory ou FreeIPA\/LDAP selon le cas ; confirmez les outils et les versions support\u00e9s.<\/p>\n\n\n<p class=\"wp-block-paragraph\">L'ensemble final des technologies est convenu lors du cadrage, sur la base de l'interop\u00e9rabilit\u00e9, des licences, des droits d'acc\u00e8s et des exigences op\u00e9rationnelles.<\/p>\n\n<\/details>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">SERVICES CONNECT\u00c9S<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Construisez l'\u00e9tape suivante.<\/h2>\n\n<\/div>\n\n\n<p class=\"nrn2-section-lead wp-block-paragraph\">Ces services peuvent compl\u00e9ter la mission. Ils ne sont pas inclus automatiquement.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-related-grid is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-service-card is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-ref wp-block-paragraph\">IAM-07<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/certification-dacces-et-gouvernance-de-lacces\/\">Certification des acc\u00e8s et gouvernance des acc\u00e8s<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Organisation de campagnes au cours desquelles des responsables d\u00e9sign\u00e9s v\u00e9rifient que les autorisations des utilisateurs et des tiers restent justifi\u00e9es.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/certification-dacces-et-gouvernance-de-lacces\/\">D\u00e9couvrir ce service <span aria-hidden=\"true\">\u2197<\/span><\/a><\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-service-card is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-ref wp-block-paragraph\">SOC-04<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/ingenierie-de-detection-et-amelioration-des-regles\/\">Ing\u00e9nierie de la d\u00e9tection et am\u00e9lioration des r\u00e8gles<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Concevoir et maintenir des r\u00e8gles de d\u00e9tection li\u00e9es aux risques clients, avec des proc\u00e9dures de test et d'investigation. L'objectif est d'obtenir des alertes utiles et explicables plut\u00f4t qu'un catalogue incontr\u00f4l\u00e9 de r\u00e8gles activ\u00e9es.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/ingenierie-de-detection-et-amelioration-des-regles\/\">D\u00e9couvrir ce service <span aria-hidden=\"true\">\u2197<\/span><\/a><\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-service-card is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-ref wp-block-paragraph\">AUD-03<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/audit-de-lidentite-et-des-privileges\/\">Audit d'identit\u00e9 et de privil\u00e8ge<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Un examen des acc\u00e8s de chacun, de la mani\u00e8re dont les comptes sont prot\u00e9g\u00e9s et de l'impact qu'une identit\u00e9 compromise pourrait avoir sur les ressources sensibles.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/audit-de-lidentite-et-des-privileges\/\">D\u00e9couvrir ce service <span aria-hidden=\"true\">\u2197<\/span><\/a><\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-cta is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">Commencer une conversation<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Clarifiez la port\u00e9e.<\/h2>\n\n<\/div>\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-body-lg wp-block-paragraph\">Nous clarifierons l'objectif, les d\u00e9pendances et les responsabilit\u00e9s de ce service avant de proposer la livraison.<\/p>\n\n\n<div class=\"wp-block-buttons nrn2-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/neranis.com\/fr\/contact\/\">Discutez de vos priorit\u00e9s<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Durcir les services qui g\u00e8rent les identit\u00e9s et les autorisations afin de r\u00e9duire les privil\u00e8ges excessifs et les acc\u00e8s administratifs non s\u00e9curis\u00e9s.<\/p>","protected":false},"featured_media":0,"template":"single-nrn_service","meta":{"footnotes":""},"nrn_family":[8],"class_list":["post-91","nrn_service","type-nrn_service","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/91","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service"}],"about":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/types\/nrn_service"}],"version-history":[{"count":2,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/91\/revisions"}],"predecessor-version":[{"id":486,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/91\/revisions\/486"}],"wp:attachment":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/media?parent=91"}],"wp:term":[{"taxonomy":"nrn_family","embeddable":true,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_family?post=91"}],"curies":[{"name":"Bien jou\u00e9","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}