{"id":281,"date":"2025-11-12T17:31:22","date_gmt":"2025-11-12T17:31:22","guid":{"rendered":"https:\/\/rblase.btssio.corsica\/portfolio\/?p=281"},"modified":"2026-03-19T10:22:38","modified_gmt":"2026-03-19T10:22:38","slug":"installer-la-double-authentification-via-yubikey-sur-un-ubuntu","status":"publish","type":"post","link":"https:\/\/rblase.btssio.corsica\/portfolio\/2025\/11\/12\/installer-la-double-authentification-via-yubikey-sur-un-ubuntu\/","title":{"rendered":"Installer la double authentification via Yubikey sur un Ubuntu"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Contexte : <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Actuellement, le parc informatique de l\u2019entreprise SITEC est majoritairement compos\u00e9 de postes sous Windows. Cependant, depuis quelque temps, certains salari\u00e9s manifestent un int\u00e9r\u00eat croissant pour l\u2019utilisation de Linux dans leur environnement de travail.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Afin de r\u00e9pondre \u00e0 cette demande, il a \u00e9t\u00e9 d\u00e9cid\u00e9 de proposer l\u2019installation de Ubuntu 24.04 sur certains postes. Toutefois, l\u2019entreprise \u00e9tant certifi\u00e9e ISO 27001 et HDS, il est imp\u00e9ratif que ces nouveaux environnements respectent les m\u00eames exigences de s\u00e9curit\u00e9 que les postes Windows.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans ce contexte, plusieurs solutions de s\u00e9curisation doivent \u00eatre mises en place afin de garantir la conformit\u00e9 avec les politiques de s\u00e9curit\u00e9 de l\u2019entreprise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans le cadre de mon alternance au sein de l\u2019\u00e9quipe s\u00e9curit\u00e9, il m\u2019a \u00e9t\u00e9 confi\u00e9 la mission d\u2019impl\u00e9menter une solution de double authentification sur les postes Ubuntu, en utilisant des cl\u00e9s de s\u00e9curit\u00e9 YubiKey, d\u00e9j\u00e0 fournies par l\u2019entreprise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019objectif est de renforcer la s\u00e9curit\u00e9 de l\u2019authentification des utilisateurs tout en conservant une exp\u00e9rience d\u2019utilisation simple et compatible avec l\u2019environnement Linux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Source&nbsp;: <a href=\"https:\/\/office.sitec.corsica\/9.2.0-5fb5e65246339c4a3a6fd6a72f2a958f\/web-apps\/apps\/documenteditor\/main\/index.html?_dc=9.2.0-98&amp;lang=fr&amp;customer=ONLYOFFICE&amp;type=desktop&amp;frameEditorId=iframeEditor&amp;isForm=false&amp;compact=true&amp;parentOrigin=https:\/\/docs.sitec.corsica&amp;uitheme=theme-system&amp;fileType=docx\"><u>https:\/\/support.yubico.com\/s\/article\/Ubuntu-Linux-login-guide-U2F<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Installation du paquet<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Commencer par installer le paquet n\u00e9cessaire \u00e0 l\u2019utilisation de la Yubikey.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"711\" height=\"120\" src=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-28.png\" alt=\"\" class=\"wp-image-284\" srcset=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-28.png 711w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-28-300x51.png 300w\" sizes=\"auto, (max-width: 711px) 100vw, 711px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Cr\u00e9er le dossier destin\u00e9 \u00e0 l\u2019utilisateur de la Yubikey.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"689\" height=\"73\" src=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-27.png\" alt=\"\" class=\"wp-image-283\" srcset=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-27.png 689w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-27-300x32.png 300w\" sizes=\"auto, (max-width: 689px) 100vw, 689px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Cr\u00e9er ensuite le fichier u2f_keys.<br>&nbsp;Un <strong>code PIN<\/strong> sera demand\u00e9 : <strong>ne pas l\u2019oublier<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une fois le code PIN saisi, la Yubikey va clignoter ; il faudra alors <strong>appuyer sur la cl\u00e9<\/strong> pour valider l\u2019enregistrement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour renforcer la s\u00e9curit\u00e9, d\u00e9placer le fichier dans le r\u00e9pertoire suivant :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"755\" height=\"37\" src=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-29.png\" alt=\"\" class=\"wp-image-285\" srcset=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-29.png 755w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-29-300x15.png 300w\" sizes=\"auto, (max-width: 755px) 100vw, 755px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"405\" height=\"26\" src=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-26.png\" alt=\"\" class=\"wp-image-282\" srcset=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-26.png 405w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-26-300x19.png 300w\" sizes=\"auto, (max-width: 405px) 100vw, 405px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>On \u00e9vite les probl\u00e8mes de droits<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est ensuite possible d\u2019adapter l\u2019utilisation de la Yubikey selon les utilisateurs, ou de l\u2019imposer \u00e0 certains comptes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans cet exemple, nous imposons l\u2019authentification par Yubikey \u00e0 un utilisateur sp\u00e9cifique en modifiant le fichier :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"405\" height=\"26\" src=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-26.png\" alt=\"\" class=\"wp-image-287\" srcset=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-26.png 405w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-26-300x19.png 300w\" sizes=\"auto, (max-width: 405px) 100vw, 405px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nous for\u00e7ons uniquement l\u2019utilisateur adminlocal \u00e0 se connecter avec une authentification \u00e0 deux facteurs :<br>&nbsp;<strong>mot de passe + Yubikey<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"741\" src=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-30-1024x741.png\" alt=\"\" class=\"wp-image-286\" srcset=\"https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-30-1024x741.png 1024w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-30-300x217.png 300w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-30-768x556.png 768w, https:\/\/rblase.btssio.corsica\/portfolio\/wp-content\/uploads\/2026\/03\/image-30.png 1127w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Une fois le mot de passe indiqu\u00e9, la Yubikey clignote est attend d\u2019\u00eatre utilis\u00e9e<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comp\u00e9tences mobilis\u00e9s : <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Recenser\u00a0et\u00a0identifier\u00a0les\u00a0ressources\u00a0num\u00e9riques<\/li>\n\n\n\n<li>Collecter, suivre et orienter des demandes<\/li>\n\n\n\n<li>R\u00e9aliser les tests d\u2019int\u00e9gration et d\u2019acceptation d\u2019un service<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Conclusion : <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce projet s&rsquo;accorde \u00e0 une politique de souverainet\u00e9 num\u00e9rique que nous tentons de mettre en place, et \u00e9videmment de garder en t\u00eate une coh\u00e9rence en terme de s\u00e9curit\u00e9 num\u00e9rique sur lequel nous nous devons de travailler quotidiennement <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contexte : Actuellement, le parc informatique de l\u2019entreprise SITEC est majoritairement compos\u00e9 de postes sous Windows. Cependant, depuis quelque temps, certains salari\u00e9s manifestent un int\u00e9r\u00eat croissant pour l\u2019utilisation de Linux dans leur environnement de travail. Afin de r\u00e9pondre \u00e0 cette demande, il a \u00e9t\u00e9 d\u00e9cid\u00e9 de proposer l\u2019installation de Ubuntu 24.04 sur certains postes. Toutefois, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-281","post","type-post","status-publish","format-standard","hentry","category-realisation-professionnel"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Installer la double authentification via Yubikey sur un Ubuntu - Accueil<\/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:\/\/rblase.btssio.corsica\/portfolio\/2025\/11\/12\/installer-la-double-authentification-via-yubikey-sur-un-ubuntu\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Installer la double authentification via Yubikey sur un Ubuntu - Accueil\" \/>\n<meta property=\"og:description\" content=\"Contexte : Actuellement, le parc informatique de l\u2019entreprise SITEC est majoritairement compos\u00e9 de postes sous Windows. Cependant, depuis quelque temps, certains salari\u00e9s manifestent un int\u00e9r\u00eat croissant pour l\u2019utilisation de Linux dans leur environnement de travail. Afin de r\u00e9pondre \u00e0 cette demande, il a \u00e9t\u00e9 d\u00e9cid\u00e9 de proposer l\u2019installation de Ubuntu 24.04 sur certains postes. 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Cependant, depuis quelque temps, certains salari\u00e9s manifestent un int\u00e9r\u00eat croissant pour l\u2019utilisation de Linux dans leur environnement de travail. Afin de r\u00e9pondre \u00e0 cette demande, il a \u00e9t\u00e9 d\u00e9cid\u00e9 de proposer l\u2019installation de Ubuntu 24.04 sur certains postes. 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