{"id":4365,"date":"2021-12-03T15:31:07","date_gmt":"2021-12-03T14:31:07","guid":{"rendered":"https:\/\/blog.internetvista.com\/?p=4365"},"modified":"2022-03-11T08:39:11","modified_gmt":"2022-03-11T07:39:11","slug":"expiration-des-certificats-ssl","status":"publish","type":"post","link":"https:\/\/blog.internetvista.com\/fr\/expiration-des-certificats-ssl\/","title":{"rendered":"Expiration des certificats de s\u00e9curit\u00e9\u00a0"},"content":{"rendered":"<p class=\"western\" align=\"justify\"><span style=\"color: #000000;\">Les <strong>certificats de s\u00e9curit\u00e9<\/strong> ou <a href=\"https:\/\/blog.internetvista.com\/fr\/pourquoi-https-pourquoi-certificat-ssl\/\">certificats SSL<\/a> assurent un r\u00f4le important dans la r\u00e9ussite du business en ligne. Ils permettent \u00e0 votre serveur de garantir la <\/span><span style=\"color: #000000;\"><i>s\u00e9curit\u00e9 des donn\u00e9es transmises ou des donn\u00e9es re\u00e7ues<\/i><\/span><span style=\"color: #000000;\"> depuis d\u2019autres serveurs. Ces certificats ont une dur\u00e9e de vie et doivent faire l\u2019objet d\u2019une mise \u00e0 jour r\u00e9guli\u00e8re.<strong> Si un certificat est expir\u00e9<\/strong>, les utilisateurs vont recevoir un avertissement de s\u00e9curit\u00e9 du navigateur, entra\u00eenant l\u2019arr\u00eat du trafic.\u00a0\u00a0<\/span><\/p>\n<p align=\"justify\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4374 aligncenter\" src=\"https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-2-CERTIFICAT-SECURITY-300x225.jpg\" alt=\"Expiration de certificat de s\u00e9curit\u00e9\" width=\"300\" height=\"225\" srcset=\"https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-2-CERTIFICAT-SECURITY-300x225.jpg 300w, https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-2-CERTIFICAT-SECURITY.jpg 533w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2 align=\"justify\">Que contient un certificat de s\u00e9curit\u00e9 SSL\/TLS\u00a0?<\/h2>\n<p align=\"justify\">Les certificats de s\u00e9curit\u00e9 ou certificats SSL (<a href=\"https:\/\/fr.wikipedia.org\/wiki\/Transport_Layer_Security\">Secure Socket Layer<\/a>)\/TLS (Transport Layer Security) sont indispensables pour s\u00e9curiser les \u00e9changes et la navigation d\u2019un utilisateur sur un site internet. Ces certificats SSL\/TLS permettent de savoir que les donn\u00e9es transmises et les donn\u00e9es re\u00e7ues ne sont pas compromises. Il y a les certificats de s\u00e9curit\u00e9 gratuits qui sont fournis par l\u2019h\u00e9bergeur et ceux qui sont payants. Les <a href=\"https:\/\/letsencrypt.org\/fr\/\">certificats gratuits<\/a> doivent faire l\u2019objet d\u2019une mise \u00e0 jour r\u00e9guli\u00e8re tous les trois mois. En ce qui concerne les certificats de s\u00e9curit\u00e9 payants, ils sont fournis par des tiers et le choix varie en fonction des niveaux de confiance recherch\u00e9s.<\/p>\n<p align=\"justify\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4369 aligncenter\" src=\"https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-1-CERTIFICAT-SECURITY-300x212.png\" alt=\"Tout savoir sur le certificat de s\u00e9curit\u00e9\" width=\"300\" height=\"212\" srcset=\"https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-1-CERTIFICAT-SECURITY-300x212.png 300w, https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-1-CERTIFICAT-SECURITY-768x542.png 768w, https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-1-CERTIFICAT-SECURITY.png 960w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p align=\"justify\">Que les certificats soient payants ou gratuits, ils permettent de s\u00e9curiser les donn\u00e9es des personnes qui consultent le site. Sont parmi ces donn\u00e9es les informations sur les formulaires, le num\u00e9ro de carte bancaire et la connexion \u00e0 une plateforme ou un site internet. Si tous les sites internet doivent avoir ces certificats, ceux qui proposent un paiement sur leur site sont oblig\u00e9s d\u2019avoir des certificats de s\u00e9curit\u00e9 SSL payants. Ils permettent non seulement de s\u00e9curiser les donn\u00e9es, mais aussi d\u2019inspirer la confiance des clients. Ces certificats garantissent \u00e9galement l\u2019authentification des sites. Ils permettent d\u2019\u00e9tablir une connexion chiffr\u00e9e pour les visiteurs et pour le site afin de garantir le bon fonctionnement de chaque activit\u00e9 en ligne.<\/p>\n<h2 align=\"justify\">Que se passe-t-il quand le certificat de s\u00e9curit\u00e9 est expir\u00e9\u00a0?<\/h2>\n<p align=\"justify\">L\u2019expiration des certificats de s\u00e9curit\u00e9 SSL\/TLS est un probl\u00e8me tr\u00e8s fr\u00e9quent. Elle peut \u00eatre \u00e0 l\u2019origine d\u2019une perte de chiffre d\u2019affaires plus ou moins importante. En effet, lorsque le certificat de s\u00e9curit\u00e9 n\u2019a pas \u00e9t\u00e9 renouvel\u00e9, le navigateur envoie une alerte indiquant aux internautes que le site n\u2019est pas s\u00e9curis\u00e9. Cette alerte de s\u00e9curit\u00e9 peut influencer la r\u00e9putation, r\u00e9duire le trafic et impacter le revenu.<\/p>\n<p align=\"justify\">Par ailleurs, les certificats de s\u00e9curit\u00e9 qui ne sont pas \u00e0 jour ou qui ne sont pas renouvel\u00e9s \u00e0 temps rendent \u00e9galement le site plus vuln\u00e9rable aux cyberattaques. Lorsqu\u2019il y a une faille sur le site, ce sera plus facile pour les cybercriminels de l\u2019attaquer. Il faut rappeler que, depuis le mois de septembre 2020, le d\u00e9lai des certificats de s\u00e9curit\u00e9 payant est fix\u00e9 \u00e0 13\u00a0mois et celui des certificats gratuits est de 90\u00a0jours.<\/p>\n<p align=\"justify\">Si vous d\u00e9sirez limiter les failles de s\u00e9curit\u00e9 au niveau de votre syst\u00e8me d\u2019information, vous devez choisir un certificat ayant une dur\u00e9e de vie plus courte. Vous devez \u00e9galement surveiller l\u2019int\u00e9gralit\u00e9 de vos certificats de s\u00e9curit\u00e9 avant leur expiration et avant la fin de leur vie. Si ce n\u2019est pas le cas, votre site sera expos\u00e9 \u00e0 des interruptions de service.<\/p>\n<h2 align=\"justify\">Expiration des certificats de s\u00e9curit\u00e9 \u2014 comment s\u2019en pr\u00e9munir\u00a0?<\/h2>\n<p align=\"justify\">Se pr\u00e9munir de l\u2019expiration des certificats de s\u00e9curit\u00e9 et pr\u00e9venir l\u2019interruption des services apportent de nombreux avantages :<\/p>\n<ul>\n<li>assurer la disponibilit\u00e9 des sites et des applications,<\/li>\n<li>garantir une s\u00e9curit\u00e9 sans failles \u00e0 tous les utilisateurs,<\/li>\n<li>pr\u00e9server l\u2019image de marque et l\u2019e-r\u00e9putation de l\u2019entreprise,<\/li>\n<li>\u00e9viter la perte du chiffre d\u2019affaires,<\/li>\n<li>renforcer le syst\u00e8me de d\u00e9fense du site contre les fraudes, le vol d\u2019identit\u00e9 et les autres formes d\u2019attaques.<\/li>\n<\/ul>\n<p align=\"justify\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4379 aligncenter\" src=\"https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-3-CERTIFICAT-SECURITY-300x181.jpg\" alt=\"Pr\u00e9munir l'expiration de son certificat de s\u00e9curit\u00e9\" width=\"300\" height=\"181\" srcset=\"https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-3-CERTIFICAT-SECURITY-300x181.jpg 300w, https:\/\/blog.internetvista.com\/wp-content\/uploads\/2021\/05\/IMAGE-3-CERTIFICAT-SECURITY.jpg 664w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p align=\"justify\">Il faut rappeler qu\u2019il semble impossible de suivre manuellement les dates d\u2019expiration des certificats de s\u00e9curit\u00e9. Cela peut induire beaucoup d\u2019erreurs. Pour pr\u00e9venir les interruptions de services et vous assurer que les certificats n\u2019expirent pas, vous devez vous \u00e9quiper d\u2019un excellent outil de gestion des certificats de s\u00e9curit\u00e9.<\/p>\n<h3 align=\"justify\">Choisir un bon certificat de s\u00e9curit\u00e9<\/h3>\n<p align=\"justify\">Une v\u00e9rification p\u00e9riodique des dates d\u2019expiration des certificats de s\u00e9curit\u00e9 ne suffit pas! Au-del\u00e0 de la date d\u2019expiration, vous devez tenir compte de l\u2019efficacit\u00e9 de votre certificat. Vous devez savoir que votre site internet pourrait \u00e9galement \u00eatre bloqu\u00e9 si vous utilisez un mauvais certificat de s\u00e9curit\u00e9 ou s\u2019il a \u00e9t\u00e9 modifi\u00e9 suite \u00e0 une attaque par d\u00e9ni de service. Un <strong>bon certificat<\/strong> doit \u00eatre li\u00e9 \u00e0 une CA (Autorit\u00e9 de certification) de confiance. Celle-ci doit figurer dans la liste des autorit\u00e9s fiables et attester que le domaine est valide pour avoir la confiance de chaque utilisateur.<\/p>\n<p align=\"justify\">Depuis le 1er\u00a0septembre 2021, les navigateurs exigent des certificats de s\u00e9curit\u00e9 de &#8220;dur\u00e9e plus courtes&#8221;. Au lieu de 2 ou 3\u00a0ans, ils seront uniquement valables pendant 13\u00a0mois. Pour les d\u00e9veloppeurs de navigateurs, ce changement permet, dans un premier temps de r<strong>enforcer la s\u00e9curit\u00e9<\/strong> du site ou de l\u2019application. Mais ce d\u00e9lai plus court permet aussi d\u2019\u00e9viter que les utilisateurs non autoris\u00e9s utilisent les certificats pendant une longue p\u00e9riode.<\/p>\n<h3 align=\"justify\">Configurer un contr\u00f4leur de certificats<\/h3>\n<p align=\"justify\">Les certificats de s\u00e9curit\u00e9 de courte dur\u00e9e signifient que leurs dates d\u2019expiration arriveront plus rapidement qu\u2019auparavant. Afin d\u2019\u00e9viter les d\u00e9sagr\u00e9ments, vous devez miser sur l\u2019automatisation de la d\u00e9couverte des certificats de s\u00e9curit\u00e9. Si vous ne ma\u00eetrisez pas cette t\u00e2che, InternetVista est l\u00e0 pour vous fournir une <a href=\"https:\/\/www.internetvista.com\/fr\/monitoring-et-surveillance-certificat-securite-ssl.htm\">solution innovante<\/a> permettant d\u2019automatiser l\u2019alerte en cas d&#8217;expiration des certificats de s\u00e9curit\u00e9 de votre site.<\/p>\n<p align=\"justify\">Le contr\u00f4leur de certificat effectue un inventaire des certificats afin de garantir une gestion optimale au quotidien. Gr\u00e2ce \u00e0 cela, vous pouvez facilement d\u00e9couvrir tous les certificats inconnus et connus qui sont install\u00e9s sur vos serveurs, applications et sur vos \u00e9quipements r\u00e9seau. Vous pouvez \u00e9galement analyser les certificats de s\u00e9curit\u00e9 et \u00e9valuer leur conformit\u00e9 en vous r\u00e9f\u00e9rant aux politiques de s\u00e9curit\u00e9.<\/p>\n<h3 align=\"justify\">Renouvellement automatique des certificats de s\u00e9curit\u00e9<\/h3>\n<p align=\"justify\">Il n\u2019est pas difficile de proc\u00e9der au renouvellement automatique des certificats de s\u00e9curit\u00e9. Toutefois, il est conseill\u00e9 d\u2019utiliser un logiciel de gestion qui pourra envoyer des <a href=\"https:\/\/www.internetvista.com\/fr\/monitoring-et-surveillance-certificat-securite-ssl.htm\">rappels automatiques<\/a> quand l\u2019expiration de certificat de s\u00e9curit\u00e9 s\u2019approche. Attention que le renouvellement de votre certificat de s\u00e9curit\u00e9 peut prendre de quelques jours \u00e0 quelques semaines, selon le niveau de certification requis. Pour garantir la r\u00e9ussite de l\u2019op\u00e9ration, il faut le planifier \u00e0 l\u2019avance. Sachez que vous pouvez \u00e0 tout moment faire confiance \u00e0 InternetVista. Il assure la surveillance continue de votre site internet et de vos services internet.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les certificats de s\u00e9curit\u00e9 ou certificats SSL assurent un r\u00f4le important dans la r\u00e9ussite du business en ligne. Ils permettent \u00e0 votre serveur de garantir la s\u00e9curit\u00e9 des donn\u00e9es transmises ou des donn\u00e9es re\u00e7ues depuis d\u2019autres serveurs. Ces certificats ont une dur\u00e9e de vie et doivent faire l\u2019objet d\u2019une mise \u00e0 jour r\u00e9guli\u00e8re. Si un [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":4518,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27,9,26],"tags":[83],"class_list":["post-4365","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astuces-monitoring","category-e-commerce","category-internet-fr","tag-certificat-de-securite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Expiration des certificats de s\u00e9curit\u00e9\u00a0 - internetVista Blog<\/title>\n<meta name=\"description\" content=\"V\u00e9rifiez que vos certificats de s\u00e9curit\u00e9 (SSL) soient toujours valides et soyez alert\u00e9 d\u00e8s qu&#039;ils expirent gr\u00e2ce \u00e0 internetVista.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.internetvista.com\/fr\/expiration-des-certificats-ssl\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Expiration des certificats de s\u00e9curit\u00e9\u00a0 - 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