{"id":23146,"date":"2019-01-25T06:04:14","date_gmt":"2019-01-25T14:04:14","guid":{"rendered":"https:\/\/kinqsta.com\/?post_type=knowledgebase&#038;p=21399"},"modified":"2025-10-01T20:53:52","modified_gmt":"2025-10-01T19:53:52","slug":"qu-est-ce-que-nginx","status":"publish","type":"post","link":"https:\/\/kinqsta.com\/fr\/blog\/qu-est-ce-que-nginx\/","title":{"rendered":"Qu&rsquo;est-ce que Nginx ? Qu&rsquo;est-ce que c&rsquo;est et comment \u00e7a marche"},"content":{"rendered":"<p><a href=\"https:\/\/www.nginx.com\/\">Nginx<\/a>, prononc\u00e9 comme \u00ab\u00a0engine-ex\u00a0\u00bb, est un serveur web open-source qui, depuis son succ\u00e8s initial en tant que serveur web, est maintenant aussi utilis\u00e9 comme <a href=\"https:\/\/kinqsta.com\/fr\/blog\/proxy-inverse\/\">reverse proxy<\/a>, cache HTTP, et load balancer.<\/p>\n<p>Parmi les entreprises de renom qui utilisent Nginx figurent Autodesk, Atlassian, Intuit, T-Mobile, GitLab, DuckDuckGo, Microsoft, IBM, Google, Adobe, Adobe, Salesforce, VMWare, Xerox, LinkedIn, Cisco, Facebook, Target, Citrix Systems, Twitter, Apple, Intel et beaucoup plus.<\/p>\n<p>Nginx a \u00e9t\u00e9 cr\u00e9\u00e9 \u00e0 l&rsquo;origine par Igor Sysoev, avec sa premi\u00e8re sortie publique en octobre 2004. Igor a d&rsquo;abord con\u00e7u le logiciel comme une r\u00e9ponse au <a href=\"https:\/\/en.wikipedia.org\/wiki\/C10k_problem\" target=\"_blank\" rel=\"noopener noreferrer\">probl\u00e8me du C10k<\/a>, qui est un probl\u00e8me de performance li\u00e9 \u00e0 la gestion de 10.000 connexions simultan\u00e9es.<\/p>\n<p>Parce que ses racines sont dans l&rsquo;optimisation des performances \u00e0 l\u2019\u00e9chelle, Nginx surpasse souvent d&rsquo;autres serveurs web populaires dans les tests de benchmarks, en particulier dans les situations avec un contenu statique et\/ou des requ\u00eates simultan\u00e9es \u00e9lev\u00e9es, c&rsquo;est pourquoi <a href=\"https:\/\/kinqsta.com\/fr\/hebergement-wordpress\/\" target=\"_blank\" rel=\"noopener noreferrer\">Kinsta utilise Nginx<\/a>\u00a0pour propulser son h\u00e9bergement.<\/p>\n<ul>\n<li><a href=\"#how-nginx-works\">Comment fonctionne Nginx ?<\/a><\/li>\n<li><a href=\"#nginx-vs-apache-stats\">Statistiques d&rsquo;utilisation Nginx vs Apache<\/a><\/li>\n<li><a href=\"#check-running-nginx-apache\">Comment v\u00e9rifier si vous utilisez Nginx ou Apache<\/a><\/li>\n<\/ul>\n<h2 id=\"how-nginx-works\">Comment fonctionne Nginx ?<\/h2>\n<p>Nginx est con\u00e7u pour offrir une <strong>faible utilisation de la m\u00e9moire<\/strong> et une grande simultan\u00e9it\u00e9. Plut\u00f4t que de cr\u00e9er de nouveaux processus pour chaque requ\u00eate Web, Nginx utilise une approche asynchrone et \u00e9v\u00e9nementielle o\u00f9 les requ\u00eates sont trait\u00e9es dans un seul thread.<\/p>\n<p>Avec Nginx, un processus ma\u00eetre peut contr\u00f4ler plusieurs processus de travailleurs. Le ma\u00eetre g\u00e8re les processus du travailleur, tandis que les travailleurs effectuent le traitement proprement dit. Comme Nginx est asynchrone, chaque requ\u00eate peut \u00eatre ex\u00e9cut\u00e9e simultan\u00e9ment par le travailleur sans bloquer les autres requ\u00eates.<\/p>\n<p>Quelques caract\u00e9ristiques communes vues dans Nginx incluent :<\/p>\n<ul>\n<li>Proxy invers\u00e9 avec mise en cache<\/li>\n<li>IPv6<\/li>\n<li>\u00c9quilibrage de charge<\/li>\n<li>Support FastCGI avec mise en cache<\/li>\n<li>WebSockets<\/li>\n<li>Gestion des fichiers statiques, des fichiers d&rsquo;index et de l&rsquo;indexation automatique<\/li>\n<li><a href=\"https:\/\/kinqsta.com\/fr\/blog\/tls-vs-ssl\/\">TLS\/SSL<\/a> avec SNI<\/li>\n<\/ul>\n<p>Chez Kinsta, vous pouvez <a href=\"https:\/\/kinqsta.com\/fr\/modules\/?plan=visits-business1&#038;interval=month\">d\u00e9couvrir Nginx et tous nos autres modules premium<\/a>.<\/p>\n<h2 id=\"nginx-vs-apache-stats\">Statistiques d&rsquo;utilisation Nginx vs Apache<\/h2>\n<p><a href=\"https:\/\/kinqsta.com\/fr\/blog\/qu-est-ce-qu-apache\/\" target=\"_blank\" rel=\"noopener noreferrer\">Apache<\/a> est un autre serveur web open-source populaire. En termes de nombres bruts, Apache est le serveur web le plus populaire qui existe et est utilis\u00e9 par 47% de tous les sites web avec un serveur web connu, <a href=\"https:\/\/w3techs.com\/technologies\/cross\/web_server\/ranking\">selon W3Techs<\/a>.<\/p>\n<p>Netcraft a men\u00e9 une <a href=\"https:\/\/news.netcraft.com\/archives\/2019\/04\/22\/april-2019-web-server-survey.html\">enqu\u00eate<\/a> sur 233 millions de domaines et a constat\u00e9 une utilisation d&rsquo;Apache \u00e0 31,54 % et de Nginx \u00e0 26,20 %.<\/p>\n<figure id=\"attachment_44350\" aria-describedby=\"caption-attachment-44350\" style=\"width: 1462px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-44350 size-full\" src=\"https:\/\/kinqsta.com\/wp-content\/uploads\/2018\/03\/web-server-developers-market-share-domains.png\" alt=\"D\u00e9veloppeurs de serveurs web : part de march\u00e9 des domaines \" width=\"1462\" height=\"748\"><figcaption id=\"caption-attachment-44350\" class=\"wp-caption-text\">D\u00e9veloppeurs de serveurs web : part de march\u00e9 des domaines (Source de l&rsquo;image : <a href=\"https:\/\/news.netcraft.com\/archives\/2019\/04\/22\/april-2019-web-server-survey.html\" target=\"_blank\" rel=\"noopener noreferrer\">Netcraft<\/a>)<\/figcaption><\/figure>\n<p>Bien qu&rsquo;Apache soit l&rsquo;option globale la plus populaire, <strong>Nginx\u00a0est en fait le serveur web le plus populaire parmi les sites web tr\u00e8s fr\u00e9quent\u00e9s<\/strong>.<\/p>\n<p>Lorsque vous comparez les taux d&rsquo;utilisation par trafic, <strong>Nginx\u00a0propulse<\/strong> :<\/p>\n<ul>\n<li>56,1 % des 100 000 sites les plus populaires<\/li>\n<li>63,2 % des 10 000 sites les plus populaires<\/li>\n<li>57 % des 1 000 sites les plus populaires<\/li>\n<\/ul>\n<p>En fait, Nginx est utilis\u00e9 par certains des sites les plus gourmands en ressources existantes, <a href=\"https:\/\/www.nginx.com\/blog\/why-netflix-chose-nginx-as-the-heart-of-its-cdn\/\" target=\"_blank\" rel=\"noopener noreferrer\">notamment Netflix<\/a>, la NASA et m\u00eame WordPress.com.<\/p>\n<p><strong>L&rsquo;utilisation d&rsquo;Apache<\/strong>, d&rsquo;autre part, va dans la direction oppos\u00e9e lorsque le trafic d&rsquo;un site augmente. Il propulse :<\/p>\n<ul>\n<li>27,1 % des 100 000 sites les plus populaires<\/li>\n<li>21,5 % des 10 000 sites les plus populaires<\/li>\n<li>16,2 % des 1 000 sites les plus populaires<\/li>\n<\/ul>\n<p>Si nous jetons un coup d&rsquo;oeil aux <a href=\"https:\/\/trends.google.com\/trends\/explore?date=all&#038;q=nginx,apache\" target=\"_blank\" rel=\"noopener noreferrer\">termes de recherche Google<\/a> depuis 2004, nous pouvons constater qu&rsquo;Apache a \u00e9t\u00e9 sur un d\u00e9clin constant, tandis que Nginx a connu une l\u00e9g\u00e8re croissance.<\/p>\n<figure id=\"attachment_23148\" aria-describedby=\"caption-attachment-23148\" style=\"width: 1996px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-23148 size-full\" src=\"https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2019\/01\/nginx-vs-apache.png\" alt=\"Nginx vs Apache\" width=\"1996\" height=\"588\" srcset=\"https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2019\/01\/nginx-vs-apache.png 1996w, https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2019\/01\/nginx-vs-apache-300x88.png 300w, https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2019\/01\/nginx-vs-apache-768x226.png 768w, https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2019\/01\/nginx-vs-apache-1024x302.png 1024w, https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2019\/01\/nginx-vs-apache-610x180.png 610w\" sizes=\"auto, (max-width: 1996px) 100vw, 1996px\" \/><figcaption id=\"caption-attachment-23148\" class=\"wp-caption-text\">Nginx vs Apache<\/figcaption><\/figure>\n<p>Encore une fois, si l&rsquo;on consid\u00e8re que Nginx fonctionne mieux en sous-\u00e9chelle, il n&rsquo;est pas surprenant que les sites Web tr\u00e8s fr\u00e9quent\u00e9s optent pour Nginx plut\u00f4t que pour Apache. Lisez notre comparaison d\u00e9taill\u00e9e <a href=\"https:\/\/kinqsta.com\/fr\/blog\/nginx-vs-apache\/\">Nginx vs Apache<\/a>.<\/p>\n<h2 id=\"check-running-nginx-apache\">Comment v\u00e9rifier si vous utilisez Nginx ou Apache<\/h2>\n<p>Sur la plupart des sites Web, vous pouvez simplement v\u00e9rifier l&rsquo;en-t\u00eate HTTP du <code>server<\/code> pour voir s&rsquo;il indique Nginx ou Apache. Vous pouvez voir les en-t\u00eates HTTP en lan\u00e7ant l&rsquo;onglet r\u00e9seau dans Chrome Devtools. Ou vous pouvez v\u00e9rifier les en-t\u00eates dans un outil comme <a href=\"https:\/\/kinqsta.com\/fr\/blog\/test-vitesse-pingdom\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pingdom<\/a> ou <a href=\"https:\/\/kinqsta.com\/fr\/blog\/test-vitesse-gtmetrix\/\" target=\"_blank\" rel=\"noopener noreferrer\">GTmetrix<\/a>.<\/p>\n<p>Cependant, l&rsquo;en-t\u00eate HTTP ne r\u00e9v\u00e8le pas toujours le serveur Web sous-jacent. Par exemple, si votre site WordPress est derri\u00e8re un service proxy tel que Cloudflare, l&rsquo;en-t\u00eate HTTP du <code>server<\/code> dira alors Cloudflare \u00e0 la place.<\/p>\n<figure style=\"width: 1697px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinqsta.com\/fr\/wp-content\/uploads\/sites\/4\/2018\/03\/en-tete-http-nginx.png\" alt=\"En-t\u00eate HTTP Nginx\" width=\"1697\" height=\"656\"><figcaption class=\"wp-caption-text\">En-t\u00eate HTTP Nginx<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Nginx, prononc\u00e9 comme \u00ab\u00a0engine-ex\u00a0\u00bb, est un serveur web open-source qui, depuis son succ\u00e8s initial en tant que serveur web, est maintenant aussi utilis\u00e9 comme reverse proxy, &#8230;<\/p>\n","protected":false},"author":38,"featured_media":23151,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[98,80],"topic":[995],"class_list":["post-23146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-nginx","tag-webhosting","topic-conseils-marketing-en-ligne"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que Nginx ? Qu&#039;est-ce que c&#039;est et comment \u00e7a marche<\/title>\n<meta name=\"description\" content=\"Nginx, prononc\u00e9 \u00ab ainegix \u00bb, est un serveur web open source, \u00e9galement utilis\u00e9 comme proxy inverse, cache HTTP et \u00e9quilibreur de charge. Apprenez-en davantage dans ce guide approfondi.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kinqsta.com\/fr\/blog\/qu-est-ce-que-nginx\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu&#039;est-ce que Nginx ? Qu&#039;est-ce que c&#039;est et comment \u00e7a marche\" \/>\n<meta property=\"og:description\" content=\"Nginx, prononc\u00e9 \u00ab ainegix \u00bb, est un serveur web open source, \u00e9galement utilis\u00e9 comme proxy inverse, cache HTTP et \u00e9quilibreur de charge. 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