{"id":33420,"date":"2019-11-11T09:25:26","date_gmt":"2019-11-11T05:55:26","guid":{"rendered":"https:\/\/airoserver.com\/?p=1793"},"modified":"2022-04-03T16:52:33","modified_gmt":"2022-04-03T12:22:33","slug":"everything-about-firewall","status":"publish","type":"post","link":"https:\/\/airoserver.com\/fr\/dedie\/tout-sur-le-pare-feu\/","title":{"rendered":"Tout sur le pare-feu"},"content":{"rendered":"<p>Vous avez peut-\u00eatre d\u00e9j\u00e0 entendu parler d'un pare-feu, mais savez-vous de quoi il s'agit ? Dans cet article, nous allons vous expliquer tout ce qui concerne le pare-feu.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Qu'est-ce qu'un pare-feu ?<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Il existe diff\u00e9rentes mani\u00e8res de s\u00e9curiser vos machines (PC ou <a href=\"https:\/\/airoserver.com\/fr\/dedie\/quest-ce-quun-serveur\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"serveur (s&#039;ouvre dans un nouvel onglet)\">serveur<\/a>) et la pr\u00e9sence d'un pare-feu est certainement un \u00e9l\u00e9ment important. Un pare-feu fonctionne simplement comme un garde-fronti\u00e8re, il contr\u00f4le toutes les donn\u00e9es sortantes et entrantes d'un syst\u00e8me ou d'un r\u00e9seau. Il met donc une barri\u00e8re entre deux r\u00e9seaux (bas\u00e9 sur le r\u00e9seau) ou entre le r\u00e9seau et votre machine (bas\u00e9 sur l'h\u00f4te).<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Pare-feu bas\u00e9s sur l'h\u00f4te et sur le r\u00e9seau<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Nous pouvons classer les pare-feu en deux cat\u00e9gories : ceux bas\u00e9s sur l'h\u00f4te et ceux bas\u00e9s sur le r\u00e9seau.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Bas\u00e9 sur l'h\u00f4te :<\/strong> Il s'agit d'un logiciel install\u00e9 sur chaque machine et qui prot\u00e8ge le trafic entrant et sortant de celle-ci. Gr\u00e2ce \u00e0 lui, vous pouvez d\u00e9terminer ce qui est autoris\u00e9 \u00e0 passer par vos ports et ce qui ne l'est pas. Par exemple, vous pouvez : emp\u00eacher un programme d'\u00eatre envoy\u00e9 depuis votre machine, emp\u00eacher certaines adresses IP d'avoir acc\u00e8s \u00e0 votre machine, bloquer l'entr\u00e9e de donn\u00e9es suspectes, etc.<\/li>\r\n<li><strong>Bas\u00e9 sur le r\u00e9seau :<\/strong> Il contr\u00f4le le trafic qui va et vient entre une zone s\u00e9curis\u00e9e et une zone non s\u00e9curis\u00e9e. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Local_area_network\" target=\"_blank\" rel=\"noreferrer noopener\">LAN<\/a> (r\u00e9seau local) et l'internet. Cela signifie qu'il peut filtrer le trafic et prot\u00e9ger le r\u00e9seau local contre les attaques ou les donn\u00e9es nuisibles. Il ne comprend rien \u00e0 l'int\u00e9rieur des machines et ne prot\u00e8ge qu'un r\u00e9seau.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Il est maintenant \u00e9vident que le fait de disposer de ces deux \u00e9l\u00e9ments signifie que l'on dispose de plus de s\u00e9curit\u00e9. Par exemple, si vos machines font toutes partie d'un r\u00e9seau, vous voulez que ce r\u00e9seau soit s\u00e9curis\u00e9 et que chaque machine le soit \u00e9galement.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"wp-image-1808\" src=\"https:\/\/airoserver.com\/wp-content\/uploads\/2019\/11\/images_text_firewallsett.jpg\" alt=\"Pare-feu mat\u00e9riel et logiciel\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Pare-feu mat\u00e9riel ou logiciel<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Il existe \u00e9galement une autre fa\u00e7on de classer les pare-feu. Un pare-feu peut \u00eatre mat\u00e9riel ou logiciel.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Mat\u00e9riel :<\/strong> Il s'agit d'un dispositif physique qui contr\u00f4le le trafic entrant et sortant d'un r\u00e9seau.<\/li>\r\n<li><strong>Logiciel : <\/strong>Il est \u00e9vident qu'il s'agit d'un logiciel et que vous devez l'installer sur un syst\u00e8me d'exploitation. Comme nous l'avons d\u00e9j\u00e0 mentionn\u00e9, un pare-feu bas\u00e9 sur l'h\u00f4te est un logiciel.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Il convient \u00e9galement de mentionner que les pare-feux bas\u00e9s sur le r\u00e9seau peuvent \u00eatre mat\u00e9riels ou logiciels. Vous pouvez disposer d'un mat\u00e9riel sp\u00e9cialement con\u00e7u pour \u00eatre un pare-feu ou d'un appareil sur lequel vous installez un logiciel de pare-feu. Le choix de l'un ou de l'autre d\u00e9pend enti\u00e8rement de vos pr\u00e9f\u00e9rences et de l'usage que vous en faites. Le mat\u00e9riel peut fonctionner mieux que les dispositifs de base avec un logiciel install\u00e9 ou vous pouvez \u00e9galement avoir un dispositif solide (qui a quelques cartes r\u00e9seau) avec le logiciel pour fonctionner encore mieux que le type de mat\u00e9riel, mais vous devez tenir compte du fait que la deuxi\u00e8me option peut ne pas \u00eatre \u00e9conomique.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Pare-feu logiciel ou antivirus<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Il convient \u00e9galement de mentionner bri\u00e8vement que les pare-feu et les antivirus sont deux choses totalement diff\u00e9rentes. Un pare-feu est uniquement charg\u00e9 de s\u00e9curiser tout ce qui entre ou sort d'une machine et ne v\u00e9rifie pas les fichiers ou tout ce qui se trouve \u00e0 l'int\u00e9rieur de la machine, alors qu'un antivirus est charg\u00e9 de s\u00e9curiser les fichiers et les donn\u00e9es qui se trouvent \u00e0 l'int\u00e9rieur d'une machine. Par cons\u00e9quent, si un fichier nuisible parvient \u00e0 p\u00e9n\u00e9trer dans une machine, il incombe \u00e0 l'antivirus de le d\u00e9tecter et de s'en occuper.<\/p>\r\n\r\n\r\n\r\n<p>J'esp\u00e8re que vous avez appr\u00e9ci\u00e9 cet article si vous avez visit\u00e9 notre site web. <a href=\"https:\/\/airoserver.com\/fr\/blog\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"blog (s&#039;ouvre dans un nouvel onglet)\">blog<\/a> pour en savoir plus !<\/p>","protected":false},"excerpt":{"rendered":"<p>You might have heard about a firewall before but do you know what is it? in this post, we are going to explain everything about the firewall. What is a firewall? There are different ways of securing your machines (PC or server) and having a firewall is definitely an important one. A firewall simply works [&hellip;]<\/p>","protected":false},"author":5,"featured_media":33934,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[179,176,182,178],"tags":[85,142,184,131],"class_list":["post-33420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-airoserver","category-dedicated","category-shared-hosting","category-airo-vps","tag-airoserver","tag-linux","tag-network","tag-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Everything about firewall<\/title>\n<meta name=\"description\" content=\"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/airoserver.com\/fr\/dedie\/tout-sur-le-pare-feu\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Everything about firewall\" \/>\n<meta property=\"og:description\" content=\"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. 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