{"id":4136,"date":"2024-01-18T12:34:06","date_gmt":"2024-01-18T12:34:06","guid":{"rendered":"https:\/\/www.blueline-business.mg\/?p=4136"},"modified":"2024-06-14T12:27:12","modified_gmt":"2024-06-14T12:27:12","slug":"securite-le-firewall-ou-comment-assurer-la-protection-de-vosdonnees-et-de-votre-systeme-dinformation","status":"publish","type":"post","link":"https:\/\/www.blueline-business.mg\/index.php\/securite-le-firewall-ou-comment-assurer-la-protection-de-vosdonnees-et-de-votre-systeme-dinformation\/","title":{"rendered":"S\u00e9curit\u00e9 : Le Firewall ou comment assurer la protection de vosdonn\u00e9es et de votre syst\u00e8me d\u2019information."},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4136\" class=\"elementor elementor-4136\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-10a3501 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"10a3501\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-82f3251 elementor-widget elementor-widget-text-editor\" data-id=\"82f3251\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/test.blueline-business.mg\/index.php\/blog\/\">Blog \/ <\/a><a href=\"http:\/\/test.blueline-business.mg\/index.php\/2024\/01\/18\/securite-le-firewall-ou-comment-assurer-la-protection-de-vosdonnees-et-de-votre-systeme-dinformation\/\">S\u00e9curit\u00e9 <\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5a92a2e e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"5a92a2e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c036f9e elementor-widget elementor-widget-heading\" data-id=\"c036f9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">S\u00e9curit\u00e9 : Le Firewall ou comment assurer la protection de vos\ndonn\u00e9es et de votre syst\u00e8me d\u2019information.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2cdd99f e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"2cdd99f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7c63f34 e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-child\" data-id=\"7c63f34\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f298d51 elementor-widget elementor-widget-text-editor\" data-id=\"f298d51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nLe syst\u00e8me d\u2019information (SI) regroupe les ressources et dispositifs mis en place afin de\ncollecter, stocker, traiter et diffuser les informations n\u00e9cessaires au bon fonctionnement d\u2019une\nentreprise. Qu\u2019il s\u2019agisse d\u2019une TPME, d\u2019une PME ou d\u2019une grande entreprise, tous ceux qui\nd\u00e9pendent de la technologie et du r\u00e9seau sont expos\u00e9s \u00e0 ce qu\u2019on appelle la \u00ab <a href=\"http:\/\/test.blueline-business.mg\/index.php\/2024\/01\/18\/cyberattaque\/\">Cyberattaque <\/a> \u00bb\n<\/p>\n<p>\nEn g\u00e9n\u00e9ral, les PME sont davantage plus vuln\u00e9rables, mais plus la structure est grande, plus\nles risques sont nombreux. Une cyberattaque peut avoir des r\u00e9percussions sur l\u2019image d\u2019une\nentreprise, et m\u00eame sur sa situation financi\u00e8re. Les frais engendr\u00e9s par certains types de\ncyberattaque valent en moyenne 140.000$ (toutes tailles d\u2019entreprise confondues). Ce montant\npeut augmenter ou diminuer selon les d\u00e9g\u00e2ts caus\u00e9s par l\u2019attaque, mais les cons\u00e9quences\npeuvent aller jusqu\u2019\u00e0 la dissolution totale d\u2019une entreprise.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d87c9ce e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-child\" data-id=\"d87c9ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5cdad4a elementor-widget elementor-widget-image\" data-id=\"5cdad4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"996\" height=\"747\" src=\"https:\/\/www.blueline-business.mg\/wp-content\/uploads\/2024\/01\/Firewall.jpg\" class=\"attachment-large size-large wp-image-4144\" alt=\"\" srcset=\"https:\/\/www.blueline-business.mg\/wp-content\/uploads\/2024\/01\/Firewall.jpg 996w, https:\/\/www.blueline-business.mg\/wp-content\/uploads\/2024\/01\/Firewall-300x225.jpg 300w, https:\/\/www.blueline-business.mg\/wp-content\/uploads\/2024\/01\/Firewall-768x576.jpg 768w\" sizes=\"(max-width: 996px) 100vw, 996px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7f7b02a e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"7f7b02a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-53be138 elementor-widget elementor-widget-text-editor\" data-id=\"53be138\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Il est imp\u00e9ratif de savoir pr\u00e9venir les cyberattaques, d\u2019autant qu\u2019elles sont devenues de plus en\nplus sophistiqu\u00e9es et dangereuses. Il faut parfois plusieurs mois pour se rendre compte d\u2019un\npiratage de donn\u00e9es. Un firewall (ou pare-feu) est un outil informatique con\u00e7u pour prot\u00e9ger\nles donn\u00e9es et assure la s\u00e9curit\u00e9 des informations d\u2019un r\u00e9seau d\u2019entreprise. A cet effet, il\nemp\u00eache les logiciels ou autres dispositifs malveillants de p\u00e9n\u00e9trer un ordinateur ou un r\u00e9seau.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9d87803 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"9d87803\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-954bfc1 elementor-widget elementor-widget-heading\" data-id=\"954bfc1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comment \u00e7a marche ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-13649cd e-grid e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"13649cd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-032bbe8 elementor-widget elementor-widget-text-editor\" data-id=\"032bbe8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nLe pare-feu (firewall) permet le filtrage des flux entrants et sortants du r\u00e9seau. Il est dot\u00e9 au\nmoins de deux interfaces, l&#8217;un destin\u00e9 au r\u00e9seau interne et l&#8217;autre au r\u00e9seau externe.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0547a36 elementor-widget elementor-widget-text-editor\" data-id=\"0547a36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nLe fonctionnement du pare-feu d\u00e9pend de la politique de s\u00e9curit\u00e9 mise en \u0153uvre par\nl\u2019entreprise.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9735833 elementor-widget elementor-widget-text-editor\" data-id=\"9735833\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nAutrement dit, il s&#8217;agit notamment d&#8217;appliquer des r\u00e8gles pr\u00e9d\u00e9finies : accepter la connexion,\nla bloquer, refuser la demande de connexion sans pr\u00e9venir l&#8217;\u00e9metteur., etc.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-309f76c elementor-widget elementor-widget-text-editor\" data-id=\"309f76c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nLe pare-feu peut \u00e9galement \u00eatre personnel, dans le cas o\u00f9 ce dernier ne prot\u00e8ge qu&#8217;un seul\nordinateur.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f1a20b3 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"f1a20b3\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-59a37e1 elementor-widget elementor-widget-text-editor\" data-id=\"59a37e1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nL\u2019utilit\u00e9 et l\u2019efficacit\u00e9 du firewall s&#8217;accroissent \u00e0 mesure qu&#8217;il int\u00e8gre des fonctionnalit\u00e9s\nnouvelles et les nouveaux pare-feu sont dot\u00e9s de multiples fonctionnalit\u00e9s qui d\u00e9cuplent leurs\nutilit\u00e9s :\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5af7671 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"5af7671\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ec19835 elementor-widget elementor-widget-text-editor\" data-id=\"ec19835\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>. <\/b>traducteurs d&#8217;adresse,<\/p>\n  <p><b>. <\/b>protocole et filtrage des adresses IP,<\/p>\n  <p><b>. <\/b>serveur mandataire,<\/p>\n  <p><b>. <\/b>identifications connexion,<\/p>\n  <p><b>. <\/b>d\u00e9tection des trafics anormaux gr\u00e2ce \u00e0 l&#8217;intelpgence artificielle,<\/p>\n  <p><b>. <\/b>Trivial File Transfer Protocol (TFTP) ou protocole simppfi\u00e9 de transferts de fichiers,<\/p>\n  <p><b>. <\/b>dispositif antipourriel,<\/p>\n  <p><b>. <\/b>contr\u00f4le des URL accessibles,<\/p>\n  <p><b>. <\/b>Serveur Internet de protocoles.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3d67fed e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"3d67fed\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13e427d elementor-widget elementor-widget-text-editor\" data-id=\"13e427d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nDans certains cas, le pare-feu est capable d\u2019identifier totalement la source d\u2019une infection sur\nun r\u00e9seau et, en r\u00e9ponse, de limiter automatiquement l\u2019acc\u00e8s aux autres ressources du r\u00e9seau.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e3a3bbb e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"e3a3bbb\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1527c75 elementor-widget elementor-widget-text-editor\" data-id=\"1527c75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<p>Pour r\u00e9sumer, le firewall bloque notamment les logiciels malveillants et les intrusions\next\u00e9rieures, prot\u00e9geant ainsi une entreprise contre les hackers, les intrusions et le vol de\ndonn\u00e9es. Il est tout \u00e0 fait possible de personnaliser la protection offerte par un pare-feu, selon\nles besoins et le sc\u00e9nario de d\u00e9ploiement.<br>\nAinsi, il est n\u00e9cessaire de le configurer avec soin pour lui donner un maximum d&#8217;efficacit\u00e9.\nC&#8217;est la raison pour laquelle il est pr\u00e9f\u00e9rable de faire appel \u00e0 un professionnel. Blueline pourra\nvous proposer une technologie de protection puissante qui garantira la s\u00e9curit\u00e9 de votre\nentreprise.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fa0f8e4 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"fa0f8e4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-dd30cdf e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-child\" data-id=\"dd30cdf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d406202 elementor-widget elementor-widget-text-editor\" data-id=\"d406202\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.blueline-business.mg\/index.php\/audit-et-conseil-analysez-et-identifiez-les-risques-lies-alenvironnement-de-votre-entreprise\/\"><i class=\"fa-solid fa-arrow-left\"><\/i> Article precedent<\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-16ea3ea e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-child\" data-id=\"16ea3ea\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9b6c31e elementor-widget elementor-widget-text-editor\" data-id=\"9b6c31e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.blueline-business.mg\/index.php\/infogerance-pourquoi-est-il-plus-interessant-dexternaliser-la-gestionde-son-systeme-informatique\/\">Article suivant <i class=\"fa-solid fa-arrow-right\"><\/i><\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Blog \/ S\u00e9curit\u00e9 S\u00e9curit\u00e9 : Le Firewall ou comment assurer la protection de vos donn\u00e9es et de votre syst\u00e8me d\u2019information. Le syst\u00e8me d\u2019information (SI) regroupe les ressources et dispositifs mis en place afin de collecter, stocker, traiter et diffuser les informations n\u00e9cessaires au bon fonctionnement d\u2019une entreprise. Qu\u2019il s\u2019agisse d\u2019une TPME, d\u2019une PME ou d\u2019une grande entreprise, tous ceux qui d\u00e9pendent de la technologie et du r\u00e9seau sont expos\u00e9s \u00e0 ce qu\u2019on appelle la \u00ab Cyberattaque \u00bb En g\u00e9n\u00e9ral, les PME sont davantage plus vuln\u00e9rables, mais plus la structure est grande, plus les risques sont nombreux. Une cyberattaque peut avoir des r\u00e9percussions sur l\u2019image d\u2019une entreprise, et m\u00eame sur sa situation financi\u00e8re. Les frais engendr\u00e9s par certains types de cyberattaque valent en moyenne 140.000$ (toutes tailles d\u2019entreprise confondues). Ce montant peut augmenter ou diminuer selon les d\u00e9g\u00e2ts caus\u00e9s par l\u2019attaque, mais les cons\u00e9quences peuvent aller jusqu\u2019\u00e0 la dissolution totale d\u2019une entreprise. Il est imp\u00e9ratif de savoir pr\u00e9venir les cyberattaques, d\u2019autant qu\u2019elles sont devenues de plus en plus sophistiqu\u00e9es et dangereuses. Il faut parfois plusieurs mois pour se rendre compte d\u2019un piratage de donn\u00e9es. Un firewall (ou pare-feu) est un outil informatique con\u00e7u pour prot\u00e9ger les donn\u00e9es et assure la s\u00e9curit\u00e9 des informations d\u2019un r\u00e9seau d\u2019entreprise. A cet effet, il emp\u00eache les logiciels ou autres dispositifs malveillants de p\u00e9n\u00e9trer un ordinateur ou un r\u00e9seau. Comment \u00e7a marche ? Le pare-feu (firewall) permet le filtrage des flux entrants et sortants du r\u00e9seau. Il est dot\u00e9 au moins de deux interfaces, l&#8217;un destin\u00e9 au r\u00e9seau interne et l&#8217;autre au r\u00e9seau externe. Le fonctionnement du pare-feu d\u00e9pend de la politique de s\u00e9curit\u00e9 mise en \u0153uvre par l\u2019entreprise. Autrement dit, il s&#8217;agit notamment d&#8217;appliquer des r\u00e8gles pr\u00e9d\u00e9finies : accepter la connexion, la bloquer, refuser la demande de connexion sans pr\u00e9venir l&#8217;\u00e9metteur., etc. Le pare-feu peut \u00e9galement \u00eatre personnel, dans le cas o\u00f9 ce dernier ne prot\u00e8ge qu&#8217;un seul ordinateur. L\u2019utilit\u00e9 et l\u2019efficacit\u00e9 du firewall s&#8217;accroissent \u00e0 mesure qu&#8217;il int\u00e8gre des fonctionnalit\u00e9s nouvelles et les nouveaux pare-feu sont dot\u00e9s de multiples fonctionnalit\u00e9s qui d\u00e9cuplent leurs utilit\u00e9s : . traducteurs d&#8217;adresse, . protocole et filtrage des adresses IP, . serveur mandataire, . identifications connexion, . d\u00e9tection des trafics anormaux gr\u00e2ce \u00e0 l&#8217;intelpgence artificielle, . Trivial File Transfer Protocol (TFTP) ou protocole simppfi\u00e9 de transferts de fichiers, . dispositif antipourriel, . contr\u00f4le des URL accessibles, . Serveur Internet de protocoles. Dans certains cas, le pare-feu est capable d\u2019identifier totalement la source d\u2019une infection sur un r\u00e9seau et, en r\u00e9ponse, de limiter automatiquement l\u2019acc\u00e8s aux autres ressources du r\u00e9seau. Pour r\u00e9sumer, le firewall bloque notamment les logiciels malveillants et les intrusions ext\u00e9rieures, prot\u00e9geant ainsi une entreprise contre les hackers, les intrusions et le vol de donn\u00e9es. Il est tout \u00e0 fait possible de personnaliser la protection offerte par un pare-feu, selon les besoins et le sc\u00e9nario de d\u00e9ploiement. Ainsi, il est n\u00e9cessaire de le configurer avec soin pour lui donner un maximum d&#8217;efficacit\u00e9. C&#8217;est la raison pour laquelle il est pr\u00e9f\u00e9rable de faire appel \u00e0 un professionnel. Blueline pourra vous proposer une technologie de protection puissante qui garantira la s\u00e9curit\u00e9 de votre entreprise. Article precedentArticle suivant<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[1],"tags":[],"class_list":["post-4136","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>S\u00e9curit\u00e9 : Le Firewall ou comment assurer la protection de vosdonn\u00e9es et de votre syst\u00e8me d\u2019information. - https:\/\/www.blueline-business.mg\/<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.blueline-business.mg\/index.php\/securite-le-firewall-ou-comment-assurer-la-protection-de-vosdonnees-et-de-votre-systeme-dinformation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00e9curit\u00e9 : Le Firewall ou comment assurer la protection de vosdonn\u00e9es et de votre syst\u00e8me d\u2019information. - https:\/\/www.blueline-business.mg\/\" \/>\n<meta property=\"og:description\" content=\"Blog \/ S\u00e9curit\u00e9 S\u00e9curit\u00e9 : Le Firewall ou comment assurer la protection de vos donn\u00e9es et de votre syst\u00e8me d\u2019information. Le syst\u00e8me d\u2019information (SI) regroupe les ressources et dispositifs mis en place afin de collecter, stocker, traiter et diffuser les informations n\u00e9cessaires au bon fonctionnement d\u2019une entreprise. Qu\u2019il s\u2019agisse d\u2019une TPME, d\u2019une PME ou d\u2019une grande entreprise, tous ceux qui d\u00e9pendent de la technologie et du r\u00e9seau sont expos\u00e9s \u00e0 ce qu\u2019on appelle la \u00ab Cyberattaque \u00bb En g\u00e9n\u00e9ral, les PME sont davantage plus vuln\u00e9rables, mais plus la structure est grande, plus les risques sont nombreux. Une cyberattaque peut avoir des r\u00e9percussions sur l\u2019image d\u2019une entreprise, et m\u00eame sur sa situation financi\u00e8re. Les frais engendr\u00e9s par certains types de cyberattaque valent en moyenne 140.000$ (toutes tailles d\u2019entreprise confondues). Ce montant peut augmenter ou diminuer selon les d\u00e9g\u00e2ts caus\u00e9s par l\u2019attaque, mais les cons\u00e9quences peuvent aller jusqu\u2019\u00e0 la dissolution totale d\u2019une entreprise. Il est imp\u00e9ratif de savoir pr\u00e9venir les cyberattaques, d\u2019autant qu\u2019elles sont devenues de plus en plus sophistiqu\u00e9es et dangereuses. Il faut parfois plusieurs mois pour se rendre compte d\u2019un piratage de donn\u00e9es. Un firewall (ou pare-feu) est un outil informatique con\u00e7u pour prot\u00e9ger les donn\u00e9es et assure la s\u00e9curit\u00e9 des informations d\u2019un r\u00e9seau d\u2019entreprise. A cet effet, il emp\u00eache les logiciels ou autres dispositifs malveillants de p\u00e9n\u00e9trer un ordinateur ou un r\u00e9seau. Comment \u00e7a marche ? Le pare-feu (firewall) permet le filtrage des flux entrants et sortants du r\u00e9seau. Il est dot\u00e9 au moins de deux interfaces, l&#8217;un destin\u00e9 au r\u00e9seau interne et l&#8217;autre au r\u00e9seau externe. Le fonctionnement du pare-feu d\u00e9pend de la politique de s\u00e9curit\u00e9 mise en \u0153uvre par l\u2019entreprise. Autrement dit, il s&#8217;agit notamment d&#8217;appliquer des r\u00e8gles pr\u00e9d\u00e9finies : accepter la connexion, la bloquer, refuser la demande de connexion sans pr\u00e9venir l&#8217;\u00e9metteur., etc. Le pare-feu peut \u00e9galement \u00eatre personnel, dans le cas o\u00f9 ce dernier ne prot\u00e8ge qu&#8217;un seul ordinateur. L\u2019utilit\u00e9 et l\u2019efficacit\u00e9 du firewall s&#8217;accroissent \u00e0 mesure qu&#8217;il int\u00e8gre des fonctionnalit\u00e9s nouvelles et les nouveaux pare-feu sont dot\u00e9s de multiples fonctionnalit\u00e9s qui d\u00e9cuplent leurs utilit\u00e9s : . traducteurs d&#8217;adresse, . protocole et filtrage des adresses IP, . serveur mandataire, . identifications connexion, . d\u00e9tection des trafics anormaux gr\u00e2ce \u00e0 l&#8217;intelpgence artificielle, . Trivial File Transfer Protocol (TFTP) ou protocole simppfi\u00e9 de transferts de fichiers, . dispositif antipourriel, . contr\u00f4le des URL accessibles, . Serveur Internet de protocoles. Dans certains cas, le pare-feu est capable d\u2019identifier totalement la source d\u2019une infection sur un r\u00e9seau et, en r\u00e9ponse, de limiter automatiquement l\u2019acc\u00e8s aux autres ressources du r\u00e9seau. Pour r\u00e9sumer, le firewall bloque notamment les logiciels malveillants et les intrusions ext\u00e9rieures, prot\u00e9geant ainsi une entreprise contre les hackers, les intrusions et le vol de donn\u00e9es. Il est tout \u00e0 fait possible de personnaliser la protection offerte par un pare-feu, selon les besoins et le sc\u00e9nario de d\u00e9ploiement. Ainsi, il est n\u00e9cessaire de le configurer avec soin pour lui donner un maximum d&#8217;efficacit\u00e9. C&#8217;est la raison pour laquelle il est pr\u00e9f\u00e9rable de faire appel \u00e0 un professionnel. Blueline pourra vous proposer une technologie de protection puissante qui garantira la s\u00e9curit\u00e9 de votre entreprise. Article precedentArticle suivant\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.blueline-business.mg\/index.php\/securite-le-firewall-ou-comment-assurer-la-protection-de-vosdonnees-et-de-votre-systeme-dinformation\/\" \/>\n<meta property=\"og:site_name\" content=\"https:\/\/www.blueline-business.mg\/\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/bluelinebusiness\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-18T12:34:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-06-14T12:27:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.blueline-business.mg\/wp-content\/uploads\/2024\/01\/Firewall.jpg\" \/>\n<meta name=\"author\" content=\"jonhson.ratsimbaherison@staff.blueline.mg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"jonhson.ratsimbaherison@staff.blueline.mg\" 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Le syst\u00e8me d\u2019information (SI) regroupe les ressources et dispositifs mis en place afin de collecter, stocker, traiter et diffuser les informations n\u00e9cessaires au bon fonctionnement d\u2019une entreprise. Qu\u2019il s\u2019agisse d\u2019une TPME, d\u2019une PME ou d\u2019une grande entreprise, tous ceux qui d\u00e9pendent de la technologie et du r\u00e9seau sont expos\u00e9s \u00e0 ce qu\u2019on appelle la \u00ab Cyberattaque \u00bb En g\u00e9n\u00e9ral, les PME sont davantage plus vuln\u00e9rables, mais plus la structure est grande, plus les risques sont nombreux. Une cyberattaque peut avoir des r\u00e9percussions sur l\u2019image d\u2019une entreprise, et m\u00eame sur sa situation financi\u00e8re. Les frais engendr\u00e9s par certains types de cyberattaque valent en moyenne 140.000$ (toutes tailles d\u2019entreprise confondues). Ce montant peut augmenter ou diminuer selon les d\u00e9g\u00e2ts caus\u00e9s par l\u2019attaque, mais les cons\u00e9quences peuvent aller jusqu\u2019\u00e0 la dissolution totale d\u2019une entreprise. Il est imp\u00e9ratif de savoir pr\u00e9venir les cyberattaques, d\u2019autant qu\u2019elles sont devenues de plus en plus sophistiqu\u00e9es et dangereuses. Il faut parfois plusieurs mois pour se rendre compte d\u2019un piratage de donn\u00e9es. Un firewall (ou pare-feu) est un outil informatique con\u00e7u pour prot\u00e9ger les donn\u00e9es et assure la s\u00e9curit\u00e9 des informations d\u2019un r\u00e9seau d\u2019entreprise. A cet effet, il emp\u00eache les logiciels ou autres dispositifs malveillants de p\u00e9n\u00e9trer un ordinateur ou un r\u00e9seau. Comment \u00e7a marche ? Le pare-feu (firewall) permet le filtrage des flux entrants et sortants du r\u00e9seau. Il est dot\u00e9 au moins de deux interfaces, l&#8217;un destin\u00e9 au r\u00e9seau interne et l&#8217;autre au r\u00e9seau externe. Le fonctionnement du pare-feu d\u00e9pend de la politique de s\u00e9curit\u00e9 mise en \u0153uvre par l\u2019entreprise. Autrement dit, il s&#8217;agit notamment d&#8217;appliquer des r\u00e8gles pr\u00e9d\u00e9finies : accepter la connexion, la bloquer, refuser la demande de connexion sans pr\u00e9venir l&#8217;\u00e9metteur., etc. Le pare-feu peut \u00e9galement \u00eatre personnel, dans le cas o\u00f9 ce dernier ne prot\u00e8ge qu&#8217;un seul ordinateur. L\u2019utilit\u00e9 et l\u2019efficacit\u00e9 du firewall s&#8217;accroissent \u00e0 mesure qu&#8217;il int\u00e8gre des fonctionnalit\u00e9s nouvelles et les nouveaux pare-feu sont dot\u00e9s de multiples fonctionnalit\u00e9s qui d\u00e9cuplent leurs utilit\u00e9s : . traducteurs d&#8217;adresse, . protocole et filtrage des adresses IP, . serveur mandataire, . identifications connexion, . d\u00e9tection des trafics anormaux gr\u00e2ce \u00e0 l&#8217;intelpgence artificielle, . Trivial File Transfer Protocol (TFTP) ou protocole simppfi\u00e9 de transferts de fichiers, . dispositif antipourriel, . contr\u00f4le des URL accessibles, . Serveur Internet de protocoles. Dans certains cas, le pare-feu est capable d\u2019identifier totalement la source d\u2019une infection sur un r\u00e9seau et, en r\u00e9ponse, de limiter automatiquement l\u2019acc\u00e8s aux autres ressources du r\u00e9seau. Pour r\u00e9sumer, le firewall bloque notamment les logiciels malveillants et les intrusions ext\u00e9rieures, prot\u00e9geant ainsi une entreprise contre les hackers, les intrusions et le vol de donn\u00e9es. Il est tout \u00e0 fait possible de personnaliser la protection offerte par un pare-feu, selon les besoins et le sc\u00e9nario de d\u00e9ploiement. Ainsi, il est n\u00e9cessaire de le configurer avec soin pour lui donner un maximum d&#8217;efficacit\u00e9. C&#8217;est la raison pour laquelle il est pr\u00e9f\u00e9rable de faire appel \u00e0 un professionnel. Blueline pourra vous proposer une technologie de protection puissante qui garantira la s\u00e9curit\u00e9 de votre entreprise. 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