{"id":5901,"date":"2026-07-29T10:10:19","date_gmt":"2026-07-29T08:10:19","guid":{"rendered":"https:\/\/computershop.eu\/blog\/?p=5878"},"modified":"2026-07-29T10:32:51","modified_gmt":"2026-07-29T08:32:51","slug":"comment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics","status":"publish","type":"post","link":"https:\/\/computershop.eu\/blog\/fr\/comment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics","title":{"rendered":"Comment s\u00e9curiser un ordinateur portable Linux sur des r\u00e9seaux Wi-Fi publics"},"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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p class=\"wp-block-paragraph\">Utiliser un ordinateur portable Linux dans un caf\u00e9, un a\u00e9roport, un h\u00f4tel ou un espace de coworking est une solution pratique pour les utilisateurs mobiles. Cependant, ces r\u00e9seaux Wi-Fi publics peuvent repr\u00e9senter un risque majeur pour la confidentialit\u00e9 des donn\u00e9es. Les attaquants peuvent surveiller le trafic, cr\u00e9er de faux r\u00e9seaux imitant des points d&#8217;acc\u00e8s l\u00e9gitimes ou essayer d&#8217;exploiter des services expos\u00e9s du syst\u00e8me.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement \u00e0 Windows et macOS, de nombreuses distributions Linux n&#8217;activent pas automatiquement un profil sp\u00e9cial pour les r\u00e9seaux publics. L&#8217;utilisateur doit configurer manuellement les mesures de protection pour r\u00e9duire la surface d&#8217;attaque.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce guide explique les m\u00e9thodes les plus importantes pour s\u00e9curiser un ordinateur portable Linux connect\u00e9 \u00e0 un Wi-Fi public.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Les principaux risques de l&#8217;utilisation d&#8217;un ordinateur portable Linux sur des r\u00e9seaux Wi-Fi publics<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un r\u00e9seau sans fil public ne doit pas \u00eatre consid\u00e9r\u00e9 comme s\u00fbr par d\u00e9faut. M\u00eame si le mot de passe est fourni par le caf\u00e9 ou l&#8217;h\u00f4tel, l&#8217;utilisateur ne contr\u00f4le pas l&#8217;infrastructure r\u00e9seau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les menaces les plus courantes incluent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Interception du trafic r\u00e9seau<\/strong> &#8211; les attaquants peuvent essayer d&#8217;observer les connexions ou les m\u00e9tadonn\u00e9es du trafic.<\/li>\n\n\n\n<li><strong>Faux r\u00e9seaux Wi-Fi (&#8220;evil twin&#8221;)<\/strong> &#8211; un point d&#8217;acc\u00e8s cr\u00e9\u00e9 pour imiter un r\u00e9seau connu et attirer des utilisateurs.<\/li>\n\n\n\n<li><strong>Scan des services actifs<\/strong> &#8211; les applications qui acceptent des connexions externes peuvent devenir des points d&#8217;attaque.<\/li>\n\n\n\n<li><strong>Acc\u00e8s physique \u00e0 l&#8217;ordinateur portable<\/strong> &#8211; la perte ou le vol de l&#8217;appareil peut exposer des fichiers personnels si le disque n&#8217;est pas crypt\u00e9.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un syst\u00e8me Linux bien configur\u00e9 peut offrir un niveau \u00e9lev\u00e9 de s\u00e9curit\u00e9, mais n\u00e9cessite quelques ajustements manuels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9sactivez les services Linux inutiles<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un premier pas important est d&#8217;arr\u00eater les services r\u00e9seau qui ne sont pas n\u00e9cessaires, car ils peuvent devenir des points d&#8217;acc\u00e8s pour les attaquants.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous pouvez v\u00e9rifier les services actifs \u00e0 l&#8217;aide du terminal :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ss -tulpn | grep -E '(LISTEN|UNCONN)' <\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">ou<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo lsof -i -P -n | grep LISTEN<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Cette commande affiche les ports et processus qui acceptent des connexions. Si vous n&#8217;avez pas besoin de certains services lors de vos d\u00e9placements, il est recommand\u00e9 de les arr\u00eater temporairement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Exemples de services qui peuvent \u00eatre d\u00e9sactiv\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SSH<\/strong> &#8211; si l&#8217;ordinateur portable n&#8217;est pas utilis\u00e9 comme serveur administr\u00e9 \u00e0 distance.<\/li>\n\n\n\n<li><strong>Samba (smbd\/nmbd)<\/strong> &#8211; pour le partage de fichiers en r\u00e9seau.<\/li>\n\n\n\n<li><strong>Avahi daemon<\/strong> &#8211; pour la d\u00e9couverte automatique des appareils et services locaux.<\/li>\n\n\n\n<li><strong>CUPS<\/strong> &#8211; si vous n&#8217;utilisez pas d&#8217;imprimantes en r\u00e9seau.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pour arr\u00eater un service :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl stop \"service_name\"<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Cette approche limite les possibilit\u00e9s d&#8217;un attaquant connect\u00e9 au m\u00eame r\u00e9seau Wi-Fi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Si vous utilisez des r\u00e9seaux Wi-Fi publics, utilisez un VPN de confiance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un VPN (r\u00e9seau priv\u00e9 virtuel) cr\u00e9e un tunnel crypt\u00e9 entre votre ordinateur portable et le serveur VPN. Ainsi, le trafic sensible est prot\u00e9g\u00e9 avant de quitter l&#8217;appareil.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Un VPN est particuli\u00e8rement recommand\u00e9 lorsque :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>vous utilisez la banque en ligne ;<\/li>\n\n\n\n<li>vous travaillez avec des documents confidentiels ;<\/li>\n\n\n\n<li>vous acc\u00e9dez \u00e0 des comptes professionnels ;<\/li>\n\n\n\n<li>vous utilisez des r\u00e9seaux Wi-Fi inconnus.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">De nombreux services VPN offrent des applications d\u00e9di\u00e9es pour Linux ou des configurations OpenVPN compatibles avec la plupart des distributions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est important de noter qu&#8217;un VPN ne remplace pas toutes les mesures de s\u00e9curit\u00e9. Il prot\u00e8ge le trafic r\u00e9seau, mais ne pr\u00e9vient pas les malwares, le vol physique de l&#8217;appareil ou les mots de passe compromis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pour plus de s\u00e9curit\u00e9 sur les r\u00e9seaux Wi-Fi publics, utilisez un pare-feu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La plupart des distributions Linux modernes incluent un support pour le pare-feu au niveau du syst\u00e8me via <strong>netfilter<\/strong>, une composante int\u00e9gr\u00e9e au noyau Linux. Cependant, l&#8217;interface de configuration varie d&#8217;une distribution \u00e0 l&#8217;autre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>UFW (Uncomplicated Firewall)<\/strong> est l&#8217;un des outils les plus populaires pour la configuration simplifi\u00e9e du pare-feu, \u00e9tant utilis\u00e9 principalement dans l&#8217;\u00e9cosyst\u00e8me Debian\/Ubuntu. Il est g\u00e9n\u00e9ralement inclus par d\u00e9faut ou rapidement disponible dans des distributions telles que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ubuntu &#8211; UFW est g\u00e9n\u00e9ralement install\u00e9 et peut \u00eatre activ\u00e9 directement ;<\/li>\n\n\n\n<li>Linux Mint &#8211; inclut un support pour UFW, \u00e9tant recommand\u00e9 aux utilisateurs de bureau ;<\/li>\n\n\n\n<li>Debian &#8211; UFW peut \u00eatre install\u00e9 \u00e0 partir de sources officielles, mais n&#8217;est pas activ\u00e9 automatiquement ;<\/li>\n\n\n\n<li>Pop!_OS &#8211; bas\u00e9 sur Ubuntu, permet l&#8217;utilisation de UFW ;<\/li>\n\n\n\n<li>Kubuntu, Xubuntu et d&#8217;autres d\u00e9riv\u00e9s d&#8217;Ubuntu &#8211; supportent UFW via les paquets disponibles.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">D&#8217;autres distributions Linux utilisent des outils diff\u00e9rents :<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fedora Linux, Red Hat Enterprise Linux et les distributions compatibles utilisent principalement <strong><a href=\"https:\/\/firewalld.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">firewalld<\/a><\/strong> ;<\/li>\n\n\n\n<li>Arch Linux offre un support pour plusieurs solutions, y compris nftables, iptables et firewalld, mais la configuration est laiss\u00e9e davantage \u00e0 l&#8217;utilisateur ;<\/li>\n\n\n\n<li>openSUSE utilise g\u00e9n\u00e9ralement firewalld ou d&#8217;autres configurations bas\u00e9es sur SUSE Firewall.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sur un ordinateur portable utilis\u00e9 dans des r\u00e9seaux Wi-Fi publics, l&#8217;objectif principal n&#8217;est pas l&#8217;outil choisi, mais la politique de s\u00e9curit\u00e9 appliqu\u00e9e : <strong>bloquer les connexions initi\u00e9es de l&#8217;ext\u00e9rieur et ne permettre que le trafic n\u00e9cessaire<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les utilisateurs d&#8217;Ubuntu et des distributions d\u00e9riv\u00e9es, une configuration minimale peut \u00eatre :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sur des distributions comme Ubuntu, <a href=\"https:\/\/www.linux.com\/training-tutorials\/introduction-uncomplicated-firewall-ufw\/\" target=\"_blank\" rel=\"noreferrer noopener\">UFW<\/a> (Uncomplicated Firewall) peut \u00eatre activ\u00e9 comme suit :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw enable<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Pour v\u00e9rifier l&#8217;\u00e9tat :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw status<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Une configuration habituelle pour un ordinateur portable personnel est :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw default deny incoming\nsudo ufw default allow outgoing<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Cela bloque les connexions initi\u00e9es vers l&#8217;ordinateur portable, tout en permettant une navigation normale sur Internet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Configurez le navigateur pour plus de confidentialit\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le navigateur repr\u00e9sente l&#8217;une des principales interfaces par lesquelles les donn\u00e9es circulent en ligne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les utilisateurs de Linux, Firefox peut \u00eatre configur\u00e9 pour une s\u00e9curit\u00e9 suppl\u00e9mentaire en :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>activant DNS over HTTPS (DoH) ;<\/li>\n\n\n\n<li>bloquant les traqueurs ;<\/li>\n\n\n\n<li>utilisant les mises \u00e0 jour automatiques ;<\/li>\n\n\n\n<li>installant des extensions de s\u00e9curit\u00e9 connues.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DNS over HTTPS emp\u00eache l&#8217;exposition simple des requ\u00eates DNS aux personnes surveillant le m\u00eame r\u00e9seau.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Activez le cryptage du disque et le verrouillage automatique de l&#8217;\u00e9cran<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La s\u00e9curit\u00e9 ne signifie pas seulement la protection de la connexion Internet. L&#8217;ordinateur portable lui-m\u00eame doit \u00eatre prot\u00e9g\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recommandations essentielles :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>activez le cryptage complet du disque en utilisant LUKS ;<\/li>\n\n\n\n<li>utilisez un mot de passe fort ;<\/li>\n\n\n\n<li>r\u00e9glez le verrouillage automatique de l&#8217;\u00e9cran apr\u00e8s une courte p\u00e9riode d&#8217;inactivit\u00e9 ;<\/li>\n\n\n\n<li>\u00e9vitez de laisser l&#8217;ordinateur portable sans surveillance dans des espaces publics.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Si un ordinateur portable est perdu ou vol\u00e9, le cryptage du disque peut emp\u00eacher l&#8217;acc\u00e8s direct aux fichiers personnels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9l\u00e9ments \u00e0 v\u00e9rifier avant d&#8217;utiliser un r\u00e9seau Wi-Fi public<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Avant de vous connecter \u00e0 un r\u00e9seau inconnu, v\u00e9rifiez :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pare-feu actif<\/li>\n\n\n\n<li>VPN activ\u00e9<\/li>\n\n\n\n<li>Services inutiles d\u00e9sactiv\u00e9s<\/li>\n\n\n\n<li>Syst\u00e8me et applications \u00e0 jour<\/li>\n\n\n\n<li>Cryptage du disque activ\u00e9<\/li>\n\n\n\n<li>Verrouillage automatique de l&#8217;\u00e9cran configur\u00e9<\/li>\n\n\n\n<li>Navigateurs configur\u00e9s pour la confidentialit\u00e9<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Avec les bons r\u00e9glages, un ordinateur portable Linux peut \u00eatre en s\u00e9curit\u00e9 sur des r\u00e9seaux Wi-Fi publics<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Linux est appr\u00e9ci\u00e9 pour le contr\u00f4le qu&#8217;il offre \u00e0 l&#8217;utilisateur et pour sa flexibilit\u00e9, mais la s\u00e9curit\u00e9 maximale d\u00e9pend de la configuration. Un <a href=\"https:\/\/computershop.eu\/fr\/ordinateurs-portables\/ordinateurs-portables-d-occasion\" target=\"_blank\" rel=\"noreferrer noopener\">ordinateur portable<\/a> Linux utilis\u00e9 dans des espaces publics doit \u00eatre trait\u00e9 comme tout autre appareil connect\u00e9 \u00e0 Internet : avec des protections actives et des r\u00e8gles claires d&#8217;utilisation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En combinant un pare-feu correctement configur\u00e9, un VPN, l&#8217;optimisation des services et l&#8217;utilisation du cryptage des donn\u00e9es, <a href=\"https:\/\/computershop.eu\/blog\/fr\/meilleur-systeme-operateur-gratuit-alternatives-a-windows-11\" target=\"_blank\" rel=\"noreferrer noopener\">les utilisateurs de Linux<\/a> peuvent r\u00e9duire consid\u00e9rablement les risques associ\u00e9s aux r\u00e9seaux Wi-Fi publics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La mise en \u0153uvre de mesures de s\u00e9curit\u00e9 appropri\u00e9es contribue \u00e0 prot\u00e9ger les informations personnelles et professionnelles, quelle que soit le r\u00e9seau Wi-Fi auquel vous vous connectez.<\/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%2Fcomment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics&amp;t=Comment+s%C3%A9curiser+un+ordinateur+portable+Linux+sur+des+r%C3%A9seaux+Wi-Fi+publics+<+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%2Fcomment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics&amp;text=Comment+s%C3%A9curiser+un+ordinateur+portable+Linux+sur+des+r%C3%A9seaux+Wi-Fi+publics+<+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%2Fcomment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics&amp;media=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fwp-content%2Fuploads%2F2026%2F07%2Fpublic-wi-fi-networks-300x157.png&amp;description=Utiliser+un+ordinateur+portable+Linux+dans+un+caf%C3%A9%2C+un+a%C3%A9roport%2C+un+h%C3%B4tel+ou+un+espace+de+coworking+est+une+solution+pratique+pour+les+utilisateurs+mobiles.+Cependant%2C+ces+r%C3%A9seaux+Wi-Fi+publics+peuvent+repr%C3%A9senter+un+risque+majeur+pour+la+confidentialit%C3%A9+des+donn%C3%A9es.%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%2Fcomment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics&amp;title=Comment+s%C3%A9curiser+un+ordinateur+portable+Linux+sur+des+r%C3%A9seaux+Wi-Fi+publics&amp;source=Refurbished+Computers+-+ComputerShop.EU&amp;summary=Utiliser+un+ordinateur+portable+Linux+dans+un+caf%C3%A9%2C+un+a%C3%A9roport%2C+un+h%C3%B4tel+ou+un+espace+de+coworking+est+une+solution+pratique+pour+les+utilisateurs+mobiles.+Cependant%2C+ces+r%C3%A9seaux+Wi-Fi+publics+peuvent+repr%C3%A9senter+un+risque+majeur+pour+la+confidentialit%C3%A9+des+donn%C3%A9es.%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%2Fcomment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics\" 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:+Comment+s%C3%A9curiser+un+ordinateur+portable+Linux+sur+des+r%C3%A9seaux+Wi-Fi+publics&amp;body=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics\" 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Utiliser un ordinateur portable Linux dans un caf\u00e9, un a\u00e9roport, un h\u00f4tel ou un espace de coworking est une solution pratique pour les utilisateurs mobiles. Cependant, ces r\u00e9seaux Wi-Fi publics peuvent repr\u00e9senter un risque majeur pour la confidentialit\u00e9 des donn\u00e9es. &hellip; <a href=\"https:\/\/computershop.eu\/blog\/fr\/comment-securiser-un-ordinateur-portable-linux-sur-des-reseaux-wi-fi-publics\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":5894,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[178],"tags":[21932,21946,21857,21935,21943,21940,21949,22008],"class_list":["post-5901","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels","tag-configuration-linux","tag-cybersecurite-linux","tag-linux-wi-fi-public","tag-pare-feu-ubuntu","tag-protection-des-donnees-sur-lordinateur-portable","tag-protection-linux-point-dacces-public","tag-securisation-ordinateur-portable-linux","tag-vpn-linux-fr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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