{"id":2025,"date":"2026-02-08T23:16:20","date_gmt":"2026-02-08T22:16:20","guid":{"rendered":"https:\/\/www.delixirpro.com\/blog\/?p=2025"},"modified":"2026-02-08T23:18:45","modified_gmt":"2026-02-08T22:18:45","slug":"mettre-en-place-un-certificat-auto-signe-de-50-ans-sur-le-serveur-vpn-openvpn-du-dsm-synology","status":"publish","type":"post","link":"https:\/\/www.delixirpro.com\/blog\/2026\/02\/08\/mettre-en-place-un-certificat-auto-signe-de-50-ans-sur-le-serveur-vpn-openvpn-du-dsm-synology\/","title":{"rendered":"Mettre en place un certificat auto-sign\u00e9 de 50 ans sur le serveur VPN OpenVPN du DSM Synology"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Si vous souhaitez mettre en place une connexion s\u00e9curis\u00e9e avec OpenVPN depuis votre NAS Synology, vous devrez utiliser un certificat SSL pour y parvenir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Deux choix s&rsquo;offrent \u00e0 vous depuis DSM : via Let&rsquo;s Encrypt ou depuis un certificat auto-sign\u00e9. La deuxi\u00e8me option est la plus simple et ne n\u00e9c\u00e9ssite pas de port explicitement ouvert (80, 443) pour cr\u00e9er de certificat. Le souci : on est malheureusement limit\u00e9 \u00e0 une dur\u00e9e de certificat de 1 an ; obligeant \u00e0 r\u00e9guli\u00e8rement le renouveler. P\u00e9nible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On peut opter pour une autre option : la cr\u00e9ation d&rsquo;une autorit\u00e9 de certification et d&rsquo;un certificat VPN que l&rsquo;on pourra importer sur Synology DSM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est ce que l&rsquo;on va voir ici avec la cr\u00e9ation d&rsquo;un certificat auto-sign\u00e9 d&rsquo;environ 50 ans. De quoi \u00eatre tranquille un petit bout de temps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mise en oeuvre de XCA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est gr\u00e2ce \u00e0 cet outil que nous allons pouvoir cr\u00e9er des certificats. Vous pouvez le t\u00e9l\u00e9charger ici, pour Windows ou Linux : <a href=\"https:\/\/www.hohnstaedt.de\/xca\/index.php\/download\">https:\/\/www.hohnstaedt.de\/xca\/index.php\/download<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ouvrez maintenant XCA et cr\u00e9er une nouvelle base de donn\u00e9es (Fichier &gt; Nouvelle base de donn\u00e9es).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"713\" height=\"187\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-40.png\" alt=\"\" class=\"wp-image-2079\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-40.png 713w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-40-300x79.png 300w\" sizes=\"auto, (max-width: 713px) 100vw, 713px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nommez-la puis enregistrez-la.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A ce message, faire \u00ab\u00a0Changer\u00a0\u00bb :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"927\" height=\"256\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image.png\" alt=\"\" class=\"wp-image-2026\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image.png 927w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-300x83.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-768x212.png 768w\" sizes=\"auto, (max-width: 927px) 100vw, 927px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Choisissez AEC-256-CBC au lieu de PBE-SHA1-3DES (c&rsquo;est plus s\u00e9curis\u00e9)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"48\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-1-1024x48.png\" alt=\"\" class=\"wp-image-2027\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-1-1024x48.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-1-300x14.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-1-768x36.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-1.png 1194w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Puis OK.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous \u00eates pr\u00eat \u00e0 cr\u00e9er des certificats<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cr\u00e9er le certificat CA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aller dans \u00ab\u00a0Certificat\u00a0\u00bb &gt; \u00ab\u00a0Nouveau certificat\u00a0\u00bb<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"788\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-2-1024x788.png\" alt=\"\" class=\"wp-image-2029\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-2-1024x788.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-2-300x231.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-2-768x591.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-2.png 1404w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Indiquez les valeurs suivantes :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"438\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-5-1024x438.png\" alt=\"\" class=\"wp-image-2032\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-5-1024x438.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-5-300x128.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-5-768x329.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-5.png 1476w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Puis cliquez sur le bouton \u00ab\u00a0G\u00e9n\u00e9rer une nouvelle cl\u00e9\u00a0\u00bb > \u00ab\u00a0Cr\u00e9er\u00a0\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mettre le nom \u00ab\u00a0CA\u00a0\u00bb pour le nom de cette cl\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"908\" height=\"703\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-7.png\" alt=\"\" class=\"wp-image-2034\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-7.png 908w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-7-300x232.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-7-768x595.png 768w\" sizes=\"auto, (max-width: 908px) 100vw, 908px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"178\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-4-1024x178.png\" alt=\"\" class=\"wp-image-2031\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-4-1024x178.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-4-300x52.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-4-768x133.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-4.png 1480w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ca devrait donner \u00e7a :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"913\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-8-1024x913.png\" alt=\"\" class=\"wp-image-2035\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-8-1024x913.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-8-300x267.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-8-768x685.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-8.png 1510w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Aller dans \u00ab\u00a0Extensions\u00a0\u00bb et mettre les valeurs suivantes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Type : Autorit\u00e9 de Certification<\/li>\n\n\n\n<li>Critical<\/li>\n\n\n\n<li>X509v3 Subjet Key Identifier<\/li>\n\n\n\n<li>Intervalle de temps : 50 ans<\/li>\n\n\n\n<li>Cocher minuit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>(Ne pas oublier d&rsquo;appuyer sur Appliquer)<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"912\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-9-1024x912.png\" alt=\"\" class=\"wp-image-2036\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-9-1024x912.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-9-300x267.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-9-768x684.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-9.png 1489w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Aller maintenant dans \u00ab\u00a0Usage de la cl\u00e9\u00a0\u00bb :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00e9l\u00e9ctionner les valeurs suivantes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Certificate Sign<\/li>\n\n\n\n<li>CRL Sign<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"919\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-10-1024x919.png\" alt=\"\" class=\"wp-image-2038\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-10-1024x919.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-10-300x269.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-10-768x689.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-10.png 1499w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenant dans l&rsquo;onglet \u00ab\u00a0Netscape\u00a0\u00bb :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SSL CA<\/li>\n\n\n\n<li>S\/MIME CA<\/li>\n\n\n\n<li>Object Signing CA<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"915\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-11-1024x915.png\" alt=\"\" class=\"wp-image-2039\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-11-1024x915.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-11-300x268.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-11-768x686.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-11.png 1502w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Valider avec OK.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous devriez avoir ce message :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"590\" height=\"243\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-12.png\" alt=\"\" class=\"wp-image-2041\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-12.png 590w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-12-300x124.png 300w\" sizes=\"auto, (max-width: 590px) 100vw, 590px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Votre CA ets maintenant disponible :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"936\" height=\"318\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-13.png\" alt=\"\" class=\"wp-image-2042\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-13.png 936w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-13-300x102.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-13-768x261.png 768w\" sizes=\"auto, (max-width: 936px) 100vw, 936px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Cr\u00e9er le certificat SERVER (VPN)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cliquer sur \u00ab\u00a0Nouveau certificat\u00a0\u00bb :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"226\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-14-1024x226.png\" alt=\"\" class=\"wp-image-2048\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-14-1024x226.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-14-300x66.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-14-768x170.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-14.png 1377w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dans \u00ab\u00a0Certificat\u00a0\u00bb, utiliser le certificat CA cr\u00e9e pr\u00e9c\u00e9demment :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"916\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-16-1024x916.png\" alt=\"\" class=\"wp-image-2050\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-16-1024x916.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-16-300x268.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-16-768x687.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-16.png 1496w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Aller sur l&rsquo;onglet \u00ab\u00a0Sujet\u00a0\u00bb et indiquer les informations suivantes :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"425\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-17-1024x425.png\" alt=\"\" class=\"wp-image-2052\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-17-1024x425.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-17-300x125.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-17-768x319.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-17.png 1485w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Puis g\u00e9n\u00e9rer une noucelle cl\u00e9 :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"115\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-18-1024x115.png\" alt=\"\" class=\"wp-image-2053\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-18-1024x115.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-18-300x34.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-18-768x86.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-18.png 1425w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Valider avec le bouton \u00ab\u00a0Cr\u00e9er\u00a0\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mettre le nom \u00ab\u00a0VPN\u00a0\u00bb pour cette cl\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"913\" height=\"704\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-19.png\" alt=\"\" class=\"wp-image-2054\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-19.png 913w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-19-300x231.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-19-768x592.png 768w\" sizes=\"auto, (max-width: 913px) 100vw, 913px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ce qui donne \u00e7a :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"911\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-20-1024x911.png\" alt=\"\" class=\"wp-image-2055\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-20-1024x911.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-20-300x267.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-20-768x684.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-20.png 1492w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Allons maintenant dans l&rsquo;onglet \u00ab\u00a0Extensions\u00a0\u00bb :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Type : Entit\u00e9 finale<\/li>\n\n\n\n<li>Critical<\/li>\n\n\n\n<li>X509v3 Subjet Key Identifier<\/li>\n\n\n\n<li>Intervalle de temps : 49 ans (On indique moins que le CA qui en valide la dur\u00e9e)<\/li>\n\n\n\n<li>Cocher minuit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>(Ne pas oublier d&rsquo;appuyer sur Appliquer)<\/strong><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"925\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-21-1024x925.png\" alt=\"\" class=\"wp-image-2056\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-21-1024x925.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-21-300x271.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-21-768x694.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-21.png 1486w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Onglet \u00ab\u00a0Usage de la cl\u00e9\u00a0\u00bb :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Digital Signature<\/li>\n\n\n\n<li>Key Encipherment<\/li>\n\n\n\n<li>Data Encipherment<\/li>\n\n\n\n<li>Key Agreement<\/li>\n\n\n\n<li>Dans X509v3 Extended Key usage, choisir : TLS Web Server Authentication<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"481\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-22-1024x481.png\" alt=\"\" class=\"wp-image-2057\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-22-1024x481.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-22-300x141.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-22-768x361.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-22-520x245.png 520w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-22.png 1478w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dans l&rsquo;onglet \u00ab\u00a0Netscape\u00a0\u00bb :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Choisir \u00ab\u00a0SSL Server\u00a0\u00bb<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"404\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-23-1024x404.png\" alt=\"\" class=\"wp-image-2058\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-23-1024x404.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-23-300x118.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-23-768x303.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-23.png 1487w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Valider avec le bouton \u00ab\u00a0OK\u00a0\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous voyez maintenant votre deuxi\u00e8me certificat, le certificat serveur VPN :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"881\" height=\"228\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-24.png\" alt=\"\" class=\"wp-image-2060\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-24.png 881w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-24-300x78.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-24-768x199.png 768w\" sizes=\"auto, (max-width: 881px) 100vw, 881px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Export des certificats<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Clic droit sur le certificat CA &gt; Exporter &gt; Fichier :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"869\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-25-1024x869.png\" alt=\"\" class=\"wp-image-2061\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-25-1024x869.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-25-300x255.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-25-768x652.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-25.png 1293w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Indiquer le dossier d&rsquo;extraction (ici, \u00ab\u00a0c:\\OEM\u00a0\u00bb). Laisser le format PEM (*.crt).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Valider avec OK.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"638\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-26-1024x638.png\" alt=\"\" class=\"wp-image-2062\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-26-1024x638.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-26-300x187.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-26-768x478.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-26.png 1341w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Idem sur le certificat VPN :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"642\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-27-1024x642.png\" alt=\"\" class=\"wp-image-2063\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-27-1024x642.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-27-300x188.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-27-768x481.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-27.png 1342w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Puis refaites la m\u00eame chose que pr\u00e9c\u00e9demment, cette fois au format \u00ab\u00a0PEM+cl\u00e9 (*.pem)\u00a0\u00bb :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"631\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-29-1024x631.png\" alt=\"\" class=\"wp-image-2065\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-29-1024x631.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-29-300x185.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-29-768x473.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-29.png 1337w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">On a donc nos 3 fichiers pr\u00eats \u00e0 \u00eatre importer dans notre DSM Synology :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"237\" height=\"162\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-30.png\" alt=\"\" class=\"wp-image-2066\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Int\u00e9gration des certificats au DSM Synology<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">1. Se connecter \u00e0 l&rsquo;interface d&rsquo;administration du DSM<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. Panneau de configuration &gt; S\u00e9curit\u00e9 &gt; Certificats<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. Bouton Ajouter &gt; Ajouter un nouveau certificat &gt; Bouton Suivant<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"599\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-31-1024x599.png\" alt=\"\" class=\"wp-image-2068\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-31-1024x599.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-31-300x176.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-31-768x449.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-31.png 1179w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Indiquer le nom du certificat : \u00ab\u00a0VPN\u00a0\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choisir \u00ab\u00a0Importer le certificat\u00a0\u00bb puis bouton \u00ab\u00a0Suivant\u00a0\u00bb :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"864\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-32-1024x864.png\" alt=\"\" class=\"wp-image-2070\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-32-1024x864.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-32-300x253.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-32-768x648.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-32.png 1175w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Indiquer les certificats :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cl\u00e9 priv\u00e9e : VPN.pem<\/li>\n\n\n\n<li>Certificat ; VPN.crt<\/li>\n\n\n\n<li>Certificat interm\u00e9diaire : CA.crt<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"863\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-33-1024x863.png\" alt=\"\" class=\"wp-image-2071\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-33-1024x863.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-33-300x253.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-33-768x647.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-33.png 1178w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Votre certificat est maintenant import\u00e9 :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"61\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-34-1024x61.png\" alt=\"\" class=\"wp-image-2072\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-34-1024x61.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-34-300x18.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-34-768x45.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-34-1536x91.png 1536w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-34.png 1638w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Il faut maintenant lui indiquer qu&rsquo;il doit \u00eatre utilis\u00e9 par le server VPN OpenVPN Server :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cliquer sur le bouton Configurer :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"463\" height=\"163\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-35.png\" alt=\"\" class=\"wp-image-2073\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-35.png 463w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-35-300x106.png 300w\" sizes=\"auto, (max-width: 463px) 100vw, 463px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Choisir le nouveau certificat pour le service \u00ab\u00a0VPN Server\u00a0\u00bb :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-39-1024x680.png\" alt=\"\" class=\"wp-image-2077\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-39-1024x680.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-39-300x199.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-39-768x510.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-39.png 1088w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous v\u00e9rifiez l&rsquo;\u00e9tat de votre serveur VPN, il est d\u00e9marr\u00e9 avec le nouveau certificat.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"697\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-37-1024x697.png\" alt=\"\" class=\"wp-image-2075\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-37-1024x697.png 1024w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-37-300x204.png 300w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-37-768x523.png 768w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-37.png 1414w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Et oui, \u00e7a fonctionne. Et pour longtemps.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"780\" height=\"973\" src=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-38.png\" alt=\"\" class=\"wp-image-2076\" style=\"aspect-ratio:0.8016474692178839;width:410px;height:auto\" srcset=\"https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-38.png 780w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-38-240x300.png 240w, https:\/\/www.delixirpro.com\/blog\/wp-content\/uploads\/2026\/02\/image-38-768x958.png 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Source : <a href=\"https:\/\/www.hardwareluxx.de\/community\/threads\/synology-nas-openvpn-zertifikat-15-jahre-erstellen.1349051\/\">https:\/\/www.hardwareluxx.de\/community\/threads\/synology-nas-openvpn-zertifikat-15-jahre-erstellen.1349051\/<\/a>, <a href=\"https:\/\/www.reddit.com\/r\/synology\/comments\/1d1n724\/longer_selfsigned_vpn_certificates\/\">https:\/\/www.reddit.com\/r\/synology\/comments\/1d1n724\/longer_selfsigned_vpn_certificates\/<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Si vous souhaitez mettre en place une connexion s\u00e9curis\u00e9e avec OpenVPN depuis votre NAS Synology, vous devrez utiliser un certificat SSL pour y parvenir. Deux choix s&rsquo;offrent \u00e0 vous depuis DSM : via Let&rsquo;s&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":2060,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[248,140,250,39,249,131],"class_list":["post-2025","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriel","tag-auto-signe","tag-certificat","tag-dsm","tag-openvpn","tag-self-signed","tag-synology"],"_links":{"self":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts\/2025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/comments?post=2025"}],"version-history":[{"count":15,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts\/2025\/revisions"}],"predecessor-version":[{"id":2081,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts\/2025\/revisions\/2081"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/media\/2060"}],"wp:attachment":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/media?parent=2025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/categories?post=2025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/tags?post=2025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}