{"id":4526,"date":"2026-05-13T10:36:20","date_gmt":"2026-05-13T08:36:20","guid":{"rendered":"https:\/\/computershop.eu\/blog\/?p=4510"},"modified":"2026-05-13T11:07:18","modified_gmt":"2026-05-13T09:07:18","slug":"quest-ce-quun-vpn-et-comment-ca-fonctionne","status":"publish","type":"post","link":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne","title":{"rendered":"Qu&#8217;est-ce qu&#8217;un VPN et comment \u00e7a fonctionne?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p>Dans un monde num\u00e9rique o\u00f9 de plus en plus d&#8217;activit\u00e9s se d\u00e9roulent en ligne, la s\u00e9curit\u00e9 des donn\u00e9es et la protection de la vie priv\u00e9e sont devenues des priorit\u00e9s essentielles. Que vous travailliez \u00e0 domicile, acc\u00e9diez \u00e0 des applications cloud ou naviguiez sur un r\u00e9seau Wi-Fi public, vos informations peuvent \u00eatre vuln\u00e9rables face aux attaques cybern\u00e9tiques. C&#8217;est ici qu&#8217;intervient le VPN, l&#8217;une des technologies modernes les plus importantes pour s\u00e9curiser les connexions \u00e0 Internet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Que signifie VPN?<\/h2>\n\n\n\n<p>VPN est un acronyme pour &#8220;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Virtual_private_network\" target=\"_blank\" rel=\"noreferrer noopener\">R\u00e9seau Priv\u00e9 Virtuel<\/a>&#8220;. Cette technologie cr\u00e9e une connexion s\u00e9curis\u00e9e entre l&#8217;appareil de l&#8217;utilisateur et Internet, par le biais d&#8217;un tunnel crypt\u00e9. Ainsi, les donn\u00e9es transmises sont prot\u00e9g\u00e9es contre l&#8217;acc\u00e8s non autoris\u00e9, l&#8217;interception ou la modification.<\/p>\n\n\n\n<p>Par d\u00e9finition, ce type de service est :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Virtuel<\/strong> &#8211; la connexion ne n\u00e9cessite pas de c\u00e2bles physiques d\u00e9di\u00e9s.<\/li>\n\n\n\n<li><strong>Priv\u00e9<\/strong> &#8211; l&#8217;activit\u00e9 en ligne et les donn\u00e9es de l&#8217;utilisateur sont cach\u00e9es et crypt\u00e9es.<\/li>\n\n\n\n<li><strong>R\u00e9seau<\/strong> &#8211; les dispositifs et serveurs priv\u00e9s collaborent pour maintenir une connexion s\u00e9curis\u00e9e.<\/li>\n<\/ul>\n\n\n\n<p>Le service est utilis\u00e9 \u00e0 la fois par des particuliers et par des entreprises qui ont besoin d&#8217;un acc\u00e8s s\u00e9curis\u00e9 aux ressources internes ou au cloud.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment fonctionne un service VPN?<\/h2>\n\n\n\n<p>Normalement, lorsque vous naviguez sur Internet, les donn\u00e9es sont envoy\u00e9es directement entre votre appareil et les serveurs des sites web visit\u00e9s. Dans le cas de l&#8217;utilisation d&#8217;un tel service, le trafic est redirig\u00e9 via un serveur s\u00e9curis\u00e9.<\/p>\n\n\n\n<p>Le processus fonctionne de la mani\u00e8re suivante :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>L&#8217;utilisateur se connecte \u00e0 un service VPN.<\/li>\n\n\n\n<li>Le serveur priv\u00e9 authentifie l&#8217;utilisateur et l&#8217;appareil.<\/li>\n\n\n\n<li>Les donn\u00e9es sont crypt\u00e9es avant d&#8217;\u00eatre envoy\u00e9es sur Internet.<\/li>\n\n\n\n<li>Le trafic circule \u00e0 travers un &#8220;tunnel&#8221; s\u00e9curis\u00e9.<\/li>\n\n\n\n<li>L&#8217;adresse IP r\u00e9elle est cach\u00e9e et remplac\u00e9e par l&#8217;IP du serveur priv\u00e9.<\/li>\n<\/ol>\n\n\n\n<p>Ce m\u00e9canisme offre un niveau \u00e9lev\u00e9 de confidentialit\u00e9 et de s\u00e9curit\u00e9, surtout lorsque des r\u00e9seaux publics ou des connexions non s\u00e9curis\u00e9es sont utilis\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technologies essentielles derri\u00e8re un service VPN<\/h2>\n\n\n\n<p>Le fonctionnement d&#8217;un tel service repose sur trois composants principaux : cryptage, tunneling et authentification.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Cryptage des donn\u00e9es<\/h3>\n\n\n\n<p>Le cryptage transforme les informations en un format illisible sans la cl\u00e9 de d\u00e9cryptage correcte. Ainsi, m\u00eame si les donn\u00e9es sont intercept\u00e9es, elles ne peuvent pas \u00eatre utilis\u00e9es par des attaquants.<\/p>\n\n\n\n<p>Le cryptage est essentiel pour prot\u00e9ger :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>les mots de passe ;<\/li>\n\n\n\n<li>les donn\u00e9es bancaires ;<\/li>\n\n\n\n<li>les communications internes ;<\/li>\n\n\n\n<li>les documents confidentiels.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. Tunneling &#8211; le tunnel s\u00e9curis\u00e9<\/h2>\n\n\n\n<p>Le tunneling repr\u00e9sente le processus par lequel les donn\u00e9es crypt\u00e9es sont encapsul\u00e9es dans un autre paquet de r\u00e9seau pour circuler en toute s\u00e9curit\u00e9 sur Internet.<\/p>\n\n\n\n<p>En pratique, le service cr\u00e9e un &#8220;tunnel priv\u00e9&#8221; entre l&#8217;utilisateur et le serveur priv\u00e9, r\u00e9duisant le risque d&#8217;interception du trafic.<\/p>\n\n\n\n<p>Cette technologie est extr\u00eamement importante lorsque les utilisateurs se connectent \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des r\u00e9seaux Wi-Fi publics ;<\/li>\n\n\n\n<li>des a\u00e9roports ;<\/li>\n\n\n\n<li>des caf\u00e9s ;<\/li>\n\n\n\n<li>des h\u00f4tels ;<\/li>\n\n\n\n<li>des espaces de coworking.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. Authentification de l&#8217;utilisateur<\/h2>\n\n\n\n<p>Avant que le tunnel priv\u00e9 soit cr\u00e9\u00e9, l&#8217;utilisateur doit \u00eatre authentifi\u00e9. Cette \u00e9tape confirme que seules les personnes autoris\u00e9es peuvent acc\u00e9der au r\u00e9seau ou aux ressources de l&#8217;entreprise.<\/p>\n\n\n\n<p>Les m\u00e9thodes modernes d&#8217;authentification incluent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des mots de passe complexes ;<\/li>\n\n\n\n<li>l&#8217;authentification multi-facteurs (MFA) ;<\/li>\n\n\n\n<li>des certificats num\u00e9riques ;<\/li>\n\n\n\n<li>l&#8217;authentification biom\u00e9trique.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Quels sont les avantages d&#8217;un VPN ?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Protection et confidentialit\u00e9 accrues<\/h3>\n\n\n\n<p>Le VPN cache l&#8217;adresse IP r\u00e9elle et crypte le trafic en ligne, offrant plus d&#8217;intimit\u00e9 et r\u00e9duisant le risque de suivi de l&#8217;activit\u00e9 en ligne.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u00e9curit\u00e9 pour le travail \u00e0 distance<\/h3>\n\n\n\n<p>Dans le contexte du travail hybride et \u00e0 distance, les VPN permettent aux employ\u00e9s d&#8217;acc\u00e9der en toute s\u00e9curit\u00e9 aux ressources de l&#8217;entreprise depuis n&#8217;importe o\u00f9.<\/p>\n\n\n\n<p>Les entreprises utilisent fr\u00e9quemment de tels services pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l&#8217;acc\u00e8s aux serveurs internes ;<\/li>\n\n\n\n<li>des applications d&#8217;entreprise ;<\/li>\n\n\n\n<li>des bases de donn\u00e9es priv\u00e9es ;<\/li>\n\n\n\n<li>l&#8217;infrastructure cloud.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Acc\u00e8s s\u00e9curis\u00e9 aux services cloud<\/h3>\n\n\n\n<p>Les plateformes cloud modernes utilisent des solutions VPN pour une connexion s\u00e9curis\u00e9e entre l&#8217;infrastructure locale et les r\u00e9seaux virtuels dans le cloud.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e9duction des risques cybern\u00e9tiques<\/h3>\n\n\n\n<p>Un VPN peut aider \u00e0 pr\u00e9venir :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>les attaques de type &#8220;man-in-the-middle&#8221; ;<\/li>\n\n\n\n<li>l&#8217;interception du trafic ;<\/li>\n\n\n\n<li>le vol de donn\u00e9es ;<\/li>\n\n\n\n<li>l&#8217;acc\u00e8s non autoris\u00e9.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Types de VPN et utilisations courantes<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">VPN pour le travail \u00e0 distance<\/h3>\n\n\n\n<p>Les entreprises offrent aux employ\u00e9s un acc\u00e8s s\u00e9curis\u00e9 aux ressources internes sans exposer l&#8217;infrastructure directement sur Internet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">VPN site-\u00e0-site<\/h3>\n\n\n\n<p>Ce type de service connecte plusieurs bureaux ou centres de donn\u00e9es via Internet, \u00e9liminant la n\u00e9cessit\u00e9 de connexions priv\u00e9es co\u00fbteuses.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Environnement hybride et multicloud<\/h3>\n\n\n\n<p>Les organisations modernes utilisent des VPN pour connecter l&#8217;infrastructure locale \u00e0 plusieurs plateformes cloud.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pour les d\u00e9veloppeurs<\/h3>\n\n\n\n<p>Les d\u00e9veloppeurs utilisent des VPN pour un acc\u00e8s s\u00e9curis\u00e9 aux environnements de test, API et applications cloud.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c9ducation<\/h3>\n\n\n\n<p>Les universit\u00e9s et les \u00e9coles permettent un acc\u00e8s s\u00e9curis\u00e9 \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des biblioth\u00e8ques num\u00e9riques ;<\/li>\n\n\n\n<li>des plateformes \u00e9ducatives ;<\/li>\n\n\n\n<li>des bases de donn\u00e9es acad\u00e9miques ;<\/li>\n\n\n\n<li>des laboratoires virtuels.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">VPN et le mod\u00e8le Zero Trust<\/h2>\n\n\n\n<p>\u00c0 mesure que les menaces cybern\u00e9tiques deviennent de plus en plus sophistiqu\u00e9es, les entreprises adoptent des mod\u00e8les de s\u00e9curit\u00e9 modernes tels que Zero Trust.<\/p>\n\n\n\n<p>Zero Trust implique une v\u00e9rification continue de chaque utilisateur et appareil avant d&#8217;accorder l&#8217;acc\u00e8s.<\/p>\n\n\n\n<p>Actuellement, les services VPN sont souvent int\u00e9gr\u00e9s avec :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l&#8217;authentification bas\u00e9e sur l&#8217;identit\u00e9 ;<\/li>\n\n\n\n<li>des politiques d&#8217;acc\u00e8s conditionnel ;<\/li>\n\n\n\n<li>des syst\u00e8mes d&#8217;IA pour la d\u00e9tection des menaces ;<\/li>\n\n\n\n<li>une surveillance avanc\u00e9e du trafic.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Alternatives modernes au VPN<\/h2>\n\n\n\n<p>Bien que <a href=\"https:\/\/computershop.eu\/blog\/fr\/le-meilleur-vpn-en-2026-options-gratuites-et-premium\" target=\"_blank\" rel=\"noreferrer noopener\">ces services soient tr\u00e8s populaires<\/a>, des alternatives modernes telles que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SASE (Secure Access Service Edge) ;<\/li>\n\n\n\n<li>SDP (Software-Defined Perimeter) ;<\/li>\n\n\n\n<li>des services de s\u00e9curit\u00e9 cloud-native.<\/li>\n<\/ul>\n\n\n\n<p>Ces technologies offrent un contr\u00f4le plus granulaire et une meilleure int\u00e9gration avec les infrastructures cloud modernes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Un r\u00f4le essentiel dans la s\u00e9curit\u00e9 num\u00e9rique moderne<\/h2>\n\n\n\n<p>Le VPN continue de jouer un r\u00f4le essentiel dans la s\u00e9curit\u00e9 num\u00e9rique moderne. Gr\u00e2ce \u00e0 la cryptage, au tunneling et \u00e0 l&#8217;authentification, cette technologie prot\u00e8ge les donn\u00e9es en transit et permet un acc\u00e8s s\u00e9curis\u00e9 aux ressources priv\u00e9es, quelle que soit la localisation.<\/p>\n\n\n\n<p>Dans une \u00e8re domin\u00e9e par l&#8217;informatique en nuage, le travail \u00e0 distance et des menaces cybern\u00e9tiques de plus en plus complexes, l&#8217;utilisation d&#8217;un tel service repr\u00e9sente une solution pratique et efficace pour prot\u00e9ger la confidentialit\u00e9 et s\u00e9curiser les connexions en ligne.<\/p>\n\n\n\n<p>Qu&#8217;il soit utilis\u00e9 par des particuliers ou des organisations, un VPN offre un \u00e9quilibre important entre accessibilit\u00e9, flexibilit\u00e9 et protection des donn\u00e9es.<\/p>\n\t<div class=\"quickshare-container\">\r\n\t<ul class=\"quickshare-genericons monochrome quickshare-effect-expand\">\r\n\t\t<li class=\"quickshare-share\">Share:<\/li> \r\n\t\t<li><a href=\"https:\/\/facebook.com\/sharer.php?u=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fquest-ce-quun-vpn-et-comment-ca-fonctionne&amp;t=Qu%26%238217%3Best-ce+qu%26%238217%3Bun+VPN+et+comment+%C3%A7a+fonctionne%3F+<+Refurbished+Computers+-+ComputerShop.EU\" target=\"_blank\" title=\"Share on Facebook\"><span class=\"quickshare-facebook\">Facebook<\/span><\/a><\/li>\t\t<li><a href=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fquest-ce-quun-vpn-et-comment-ca-fonctionne&amp;text=Qu%26%238217%3Best-ce+qu%26%238217%3Bun+VPN+et+comment+%C3%A7a+fonctionne%3F+<+Refurbished+Computers+-+ComputerShop.EU\" target=\"_blank\" title=\"Share on Twitter\"><span class=\"quickshare-twitter\">Twitter<\/span><\/a><\/li>\t\t<li><a href=\"http:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fquest-ce-quun-vpn-et-comment-ca-fonctionne&amp;media=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fwp-content%2Fuploads%2F2026%2F05%2FVPN-300x169.png&amp;description=Dans+un+monde+num%C3%A9rique+o%C3%B9+de+plus+en+plus+d%27activit%C3%A9s+se+d%C3%A9roulent+en+ligne%2C+la+s%C3%A9curit%C3%A9+des+donn%C3%A9es+et+la+protection+de+la+vie+priv%C3%A9e+sont+devenues+des+priorit%C3%A9s+essentielles.+Que+vous+travailliez+%C3%A0+domicile%2C+acc%C3%A9diez+%C3%A0+des+applications+cloud%26hellip%3B\" target=\"_blank\" title=\"Share on Pinterest\"><span class=\"quickshare-pinterest\">Pinterest<\/span><\/a><\/li>\t\t<li><a href=\"http:\/\/linkedin.com\/shareArticle?mini=true&amp;url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fquest-ce-quun-vpn-et-comment-ca-fonctionne&amp;title=Qu%26%238217%3Best-ce+qu%26%238217%3Bun+VPN+et+comment+%C3%A7a+fonctionne%3F&amp;source=Refurbished+Computers+-+ComputerShop.EU&amp;summary=Dans+un+monde+num%C3%A9rique+o%C3%B9+de+plus+en+plus+d%27activit%C3%A9s+se+d%C3%A9roulent+en+ligne%2C+la+s%C3%A9curit%C3%A9+des+donn%C3%A9es+et+la+protection+de+la+vie+priv%C3%A9e+sont+devenues+des+priorit%C3%A9s+essentielles.+Que+vous+travailliez+%C3%A0+domicile%2C+acc%C3%A9diez+%C3%A0+des+applications+cloud%26hellip%3B\" title=\"Share on Linkedin\" target=\"_blank\"><span class=\"quickshare-linkedin\">Linkedin<\/span><\/a><\/li>\t\t<li><a href=\"https:\/\/plus.google.com\/share?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fquest-ce-quun-vpn-et-comment-ca-fonctionne\" target=\"_blank\" title=\"Share on Google+\"><span class=\"quickshare-googleplus\">Google+<\/span><\/a><\/li>\t\t\t\t\t\t\t\t<li><a href=\"mailto:?subject=Refurbished+Computers+-+ComputerShop.EU:+Qu%26%238217%3Best-ce+qu%26%238217%3Bun+VPN+et+comment+%C3%A7a+fonctionne%3F&amp;body=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fquest-ce-quun-vpn-et-comment-ca-fonctionne\" target=\"_blank\" title=\"Share via Email\"><span class=\"quickshare-email\">Email<\/span><\/a><\/li>\t<\/ul>\r\n\t<\/div>\r\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Dans un monde num\u00e9rique o\u00f9 de plus en plus d&#8217;activit\u00e9s se d\u00e9roulent en ligne, la s\u00e9curit\u00e9 des donn\u00e9es et la protection de la vie priv\u00e9e sont devenues des priorit\u00e9s essentielles. Que vous travailliez \u00e0 domicile, acc\u00e9diez \u00e0 des applications cloud &hellip; <a href=\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":4520,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[178],"tags":[9022,17048,17045,9028,17051,648,17042],"class_list":["post-4526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels","tag-chiffrement-des-donnees","tag-comment-fonctionne-un-vpn","tag-quest-ce-quun-vpn","tag-securite-en-ligne","tag-services-vpn","tag-technologie-fr","tag-tunnel-vpn"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu&#039;est-ce qu&#039;un VPN et comment \u00e7a fonctionne? - Refurbished Computers - ComputerShop.EU<\/title>\n<meta name=\"description\" content=\"Un VPN cr\u00e9e une connexion s\u00e9curis\u00e9e entre l&#039;appareil de l&#039;utilisateur et Internet, par le biais d&#039;un tunnel crypt\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu&#039;est-ce qu&#039;un VPN et comment \u00e7a fonctionne? - Refurbished Computers - ComputerShop.EU\" \/>\n<meta property=\"og:description\" content=\"Un VPN cr\u00e9e une connexion s\u00e9curis\u00e9e entre l&#039;appareil de l&#039;utilisateur et Internet, par le biais d&#039;un tunnel crypt\u00e9.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\" \/>\n<meta property=\"og:site_name\" content=\"Refurbished Computers - ComputerShop.EU\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-13T08:36:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-13T09:07:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Alex\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alex\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#article\",\"isPartOf\":{\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\"},\"author\":{\"name\":\"Alex\",\"@id\":\"https:\/\/computershop.eu\/blog\/#\/schema\/person\/0eb808f8e90cce21170267d78190e76a\"},\"headline\":\"Qu&#8217;est-ce qu&#8217;un VPN et comment \u00e7a fonctionne?\",\"datePublished\":\"2026-05-13T08:36:20+00:00\",\"dateModified\":\"2026-05-13T09:07:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\"},\"wordCount\":1188,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/computershop.eu\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage\"},\"thumbnailUrl\":\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png\",\"keywords\":[\"chiffrement des donn\u00e9es\",\"comment fonctionne un VPN\",\"qu&#039;est-ce qu&#039;un VPN\",\"s\u00e9curit\u00e9 en ligne\",\"services VPN\",\"technologie\",\"Tunnel VPN\"],\"articleSection\":[\"Tutoriels\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\",\"url\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\",\"name\":\"Qu'est-ce qu'un VPN et comment \u00e7a fonctionne? - Refurbished Computers - ComputerShop.EU\",\"isPartOf\":{\"@id\":\"https:\/\/computershop.eu\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage\"},\"image\":{\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage\"},\"thumbnailUrl\":\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png\",\"datePublished\":\"2026-05-13T08:36:20+00:00\",\"dateModified\":\"2026-05-13T09:07:18+00:00\",\"description\":\"Un VPN cr\u00e9e une connexion s\u00e9curis\u00e9e entre l'appareil de l'utilisateur et Internet, par le biais d'un tunnel crypt\u00e9.\",\"breadcrumb\":{\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage\",\"url\":\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png\",\"contentUrl\":\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png\",\"width\":1920,\"height\":1080,\"caption\":\"VPN\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/computershop.eu\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Qu&#8217;est-ce qu&#8217;un VPN et comment \u00e7a fonctionne?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/computershop.eu\/blog\/#website\",\"url\":\"https:\/\/computershop.eu\/blog\/\",\"name\":\"Refurbished Computers - ComputerShop.EU\",\"description\":\"Best Refurbished Computers In The EU\",\"publisher\":{\"@id\":\"https:\/\/computershop.eu\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/computershop.eu\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/computershop.eu\/blog\/#organization\",\"name\":\"Refurbished Computers - ComputerShop.EU\",\"url\":\"https:\/\/computershop.eu\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/computershop.eu\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2025\/08\/logo-inverse-footer.png\",\"contentUrl\":\"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2025\/08\/logo-inverse-footer.png\",\"width\":300,\"height\":54,\"caption\":\"Refurbished Computers - ComputerShop.EU\"},\"image\":{\"@id\":\"https:\/\/computershop.eu\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/computershop.eu\/blog\/#\/schema\/person\/0eb808f8e90cce21170267d78190e76a\",\"name\":\"Alex\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/computershop.eu\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/ac40376cb3b388c90452c10b7c3a589e9c469d972bfc92df578a42f1a1e7fc7f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/ac40376cb3b388c90452c10b7c3a589e9c469d972bfc92df578a42f1a1e7fc7f?s=96&d=mm&r=g\",\"caption\":\"Alex\"},\"url\":\"https:\/\/computershop.eu\/blog\/author\/alex\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Qu'est-ce qu'un VPN et comment \u00e7a fonctionne? - Refurbished Computers - ComputerShop.EU","description":"Un VPN cr\u00e9e une connexion s\u00e9curis\u00e9e entre l'appareil de l'utilisateur et Internet, par le biais d'un tunnel crypt\u00e9.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne","og_locale":"en_US","og_type":"article","og_title":"Qu'est-ce qu'un VPN et comment \u00e7a fonctionne? - Refurbished Computers - ComputerShop.EU","og_description":"Un VPN cr\u00e9e une connexion s\u00e9curis\u00e9e entre l'appareil de l'utilisateur et Internet, par le biais d'un tunnel crypt\u00e9.","og_url":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne","og_site_name":"Refurbished Computers - ComputerShop.EU","article_published_time":"2026-05-13T08:36:20+00:00","article_modified_time":"2026-05-13T09:07:18+00:00","og_image":[{"width":1920,"height":1080,"url":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png","type":"image\/png"}],"author":"Alex","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Alex","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#article","isPartOf":{"@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne"},"author":{"name":"Alex","@id":"https:\/\/computershop.eu\/blog\/#\/schema\/person\/0eb808f8e90cce21170267d78190e76a"},"headline":"Qu&#8217;est-ce qu&#8217;un VPN et comment \u00e7a fonctionne?","datePublished":"2026-05-13T08:36:20+00:00","dateModified":"2026-05-13T09:07:18+00:00","mainEntityOfPage":{"@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne"},"wordCount":1188,"commentCount":0,"publisher":{"@id":"https:\/\/computershop.eu\/blog\/#organization"},"image":{"@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage"},"thumbnailUrl":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png","keywords":["chiffrement des donn\u00e9es","comment fonctionne un VPN","qu&#039;est-ce qu&#039;un VPN","s\u00e9curit\u00e9 en ligne","services VPN","technologie","Tunnel VPN"],"articleSection":["Tutoriels"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#respond"]}]},{"@type":"WebPage","@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne","url":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne","name":"Qu'est-ce qu'un VPN et comment \u00e7a fonctionne? - Refurbished Computers - ComputerShop.EU","isPartOf":{"@id":"https:\/\/computershop.eu\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage"},"image":{"@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage"},"thumbnailUrl":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png","datePublished":"2026-05-13T08:36:20+00:00","dateModified":"2026-05-13T09:07:18+00:00","description":"Un VPN cr\u00e9e une connexion s\u00e9curis\u00e9e entre l'appareil de l'utilisateur et Internet, par le biais d'un tunnel crypt\u00e9.","breadcrumb":{"@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#primaryimage","url":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png","contentUrl":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png","width":1920,"height":1080,"caption":"VPN"},{"@type":"BreadcrumbList","@id":"https:\/\/computershop.eu\/blog\/fr\/quest-ce-quun-vpn-et-comment-ca-fonctionne#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/computershop.eu\/blog\/"},{"@type":"ListItem","position":2,"name":"Qu&#8217;est-ce qu&#8217;un VPN et comment \u00e7a fonctionne?"}]},{"@type":"WebSite","@id":"https:\/\/computershop.eu\/blog\/#website","url":"https:\/\/computershop.eu\/blog\/","name":"Refurbished Computers - ComputerShop.EU","description":"Best Refurbished Computers In The EU","publisher":{"@id":"https:\/\/computershop.eu\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/computershop.eu\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/computershop.eu\/blog\/#organization","name":"Refurbished Computers - ComputerShop.EU","url":"https:\/\/computershop.eu\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/computershop.eu\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2025\/08\/logo-inverse-footer.png","contentUrl":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2025\/08\/logo-inverse-footer.png","width":300,"height":54,"caption":"Refurbished Computers - ComputerShop.EU"},"image":{"@id":"https:\/\/computershop.eu\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/computershop.eu\/blog\/#\/schema\/person\/0eb808f8e90cce21170267d78190e76a","name":"Alex","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/computershop.eu\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/ac40376cb3b388c90452c10b7c3a589e9c469d972bfc92df578a42f1a1e7fc7f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ac40376cb3b388c90452c10b7c3a589e9c469d972bfc92df578a42f1a1e7fc7f?s=96&d=mm&r=g","caption":"Alex"},"url":"https:\/\/computershop.eu\/blog\/author\/alex"}]}},"jetpack_featured_media_url":"https:\/\/computershop.eu\/blog\/wp-content\/uploads\/2026\/05\/VPN.png","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/posts\/4526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/comments?post=4526"}],"version-history":[{"count":2,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/posts\/4526\/revisions"}],"predecessor-version":[{"id":4539,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/posts\/4526\/revisions\/4539"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/media\/4520"}],"wp:attachment":[{"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/media?parent=4526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/categories?post=4526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/computershop.eu\/blog\/wp-json\/wp\/v2\/tags?post=4526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}