{"id":92633,"date":"2026-09-02T16:25:37","date_gmt":"2026-09-02T16:25:37","guid":{"rendered":"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92633"},"modified":"2026-10-08T13:22:59","modified_gmt":"2026-10-08T13:22:59","slug":"asecurite-optimisation-performances","status":"publish","type":"page","link":"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92633","title":{"rendered":"Securite-optimisation-performances"},"content":{"rendered":" <style> .sesam-performance{ --sp-container:1320px; --sp-green:#509C2F; --sp-green-dark:#12380A; --sp-navy:#002459; --sp-indigo:#190B84; --sp-blue:#0B4EA2; --sp-orange:#F5A300; --sp-ink:#102B18; --sp-body:#686868; --sp-line:#E3E7E5; --sp-soft:#F5F8F4; --sp-light:#F7F8FC; background:#fff; color:var(--sp-body); font-size:16px; line-height:1.75; overflow:hidden; }\n\n.sesam-performance *,\n.sesam-performance *::before,\n.sesam-performance *::after{\nbox-sizing:border-box;\n}\n\n.sesam-performance 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class=\"sp-hero\">\n\n<img decoding=\"async\" src=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/wp-content\/uploads\/2026\/10\/performe.jpg\" alt=\"S\u00e9curit\u00e9 et optimisation des performances \u2014 SESAM Informatics\" loading=\"eager\">\n<div class=\"sp-hero-content\"> <div class=\"sp-kicker\">Performance r\u00e9seau &amp; s\u00e9curit\u00e9<\/div> <h1>S\u00e9curit\u00e9 et optimisation des performances<\/h1> <p class=\"sp-hero-text\"> Une infrastructure informatique doit \u00eatre s\u00e9curis\u00e9e, disponible et performante. SESAM Informatics vous aide \u00e0 identifier les ralentissements, optimiser les flux et renforcer les contr\u00f4les sans d\u00e9grader l&rsquo;exp\u00e9rience de vos utilisateurs. <\/p> <div class=\"sp-hero-pills\"> <span>Supervision<\/span> <span>Qualit\u00e9 de service<\/span> <span>Optimisation r\u00e9seau<\/span> <span>Haute disponibilit\u00e9<\/span> <\/div> <\/div> <\/section> <section class=\"sp-section\"> <div class=\"sp-wrap\"> <div class=\"sp-intro\"> <div> <h2>Mesurer avant de modifier<\/h2> <p class=\"sp-intro-lead\"> Nous travaillons sur le point d&rsquo;\u00e9quilibre entre s\u00e9curit\u00e9 et performance : bande passante, qualit\u00e9 de service, priorisation des flux, r\u00e9partition de charge, tol\u00e9rance de panne et supervision. <\/p> <p> Notre d\u00e9marche commence par l&rsquo;observation de votre environnement. Nous cherchons \u00e0 comprendre ce qui consomme, ce qui ralentit et \u00e0 quels moments afin de prendre des d\u00e9cisions fond\u00e9es sur des donn\u00e9es r\u00e9ellement mesur\u00e9es. <\/p> <div class=\"sp-quote\"> \u00ab S\u00e9curiser sans mesurer, c&rsquo;est ajouter des contr\u00f4les en esp\u00e9rant que personne ne s&rsquo;en plaigne. \u00bb <\/div> <\/div> <div class=\"sp-intro-card\">\n\n<strong>Notre principe<\/strong>\n<p> Avant de recommander un investissement mat\u00e9riel ou une refonte d&rsquo;architecture, nous cherchons d&rsquo;abord les gains possibles dans la configuration et l&rsquo;utilisation de l&rsquo;existant. <\/p> <\/div> <\/div> <\/div> <\/section> <section class=\"sp-section\" style=\"background:#F7F8FA;\"> <div class=\"sp-wrap\"> <div class=\"sp-layout\"> <article class=\"sp-main\"> <h3>Notre d\u00e9marche<\/h3> <div class=\"sp-process\"> <div class=\"sp-process-item\"> <div class=\"sp-process-number\">01<\/div> <h4>Observer<\/h4> <p>Mesurer les flux, les temps de r\u00e9ponse, les pics d&rsquo;utilisation et les indicateurs de disponibilit\u00e9.<\/p> <\/div> <div class=\"sp-process-item\"> <div class=\"sp-process-number\">02<\/div> <h4>Diagnostiquer<\/h4> <p>Identifier les saturations, les goulots d&rsquo;\u00e9tranglement et les composants responsables des d\u00e9gradations.<\/p> <\/div> <div class=\"sp-process-item\"> <div class=\"sp-process-number\">03<\/div> <h4>Prioriser<\/h4> <p>D\u00e9finir les flux et applications qui doivent b\u00e9n\u00e9ficier d&rsquo;un niveau de service prioritaire.<\/p> <\/div> <div class=\"sp-process-item\"> <div class=\"sp-process-number\">04<\/div> <h4>Optimiser<\/h4> <p>Agir sur la configuration, la qualit\u00e9 de service, le filtrage et l&rsquo;architecture lorsque cela est n\u00e9cessaire.<\/p> <\/div> <div class=\"sp-process-item\"> <div class=\"sp-process-number\">05<\/div> <h4>S\u00e9curiser<\/h4> <p>Maintenir les contr\u00f4les d&rsquo;acc\u00e8s et les m\u00e9canismes de protection indispensables \u00e0 votre environnement.<\/p> <\/div> <div class=\"sp-process-item\"> <div class=\"sp-process-number\">06<\/div> <h4>Superviser<\/h4> <p>Mettre en place les indicateurs et alertes permettant de d\u00e9tecter rapidement les anomalies.<\/p> <\/div> <\/div> <h3>Une analyse bas\u00e9e sur les faits<\/h3> <div class=\"sp-analysis\"> <div class=\"sp-analysis-image\">\n\n<img decoding=\"async\" src=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/wp-content\/uploads\/2026\/10\/travaillant-.jpg\" alt=\"Ing\u00e9nieur SESAM Informatics analysant les performances d'une infrastructure r\u00e9seau\" loading=\"lazy\">\n\n<span class=\"sp-analysis-badge\">Analyse &#038; supervision<\/span>\n<\/div> <ul class=\"sp-checks\"> <li>Mesure des flux et identification des consommations anormales<\/li> <li>Analyse des temps de r\u00e9ponse des applications m\u00e9tier<\/li> <li>Identification des saturations et des points de congestion<\/li> <li>Priorisation de la voix, de la visioconf\u00e9rence et des applications critiques<\/li> <li>Analyse des m\u00e9canismes de filtrage et de contr\u00f4le des acc\u00e8s<\/li> <li>\u00c9tude des possibilit\u00e9s de redondance et de tol\u00e9rance de panne<\/li> <li>D\u00e9finition d&rsquo;indicateurs de supervision adapt\u00e9s \u00e0 votre environnement<\/li> <\/ul> <\/div> <h3>Les b\u00e9n\u00e9fices pour votre entreprise<\/h3> <div class=\"sp-benefits\"> <div class=\"sp-benefit\"> <div class=\"sp-benefit-top\"> <div class=\"sp-benefit-icon\"> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M3 17h4v4H3v-4Zm7-7h4v11h-4V10Zm7-6h4v17h-4V4Z\"\/> <\/svg> <\/div> <h4>Des arbitrages mesur\u00e9s<\/h4> <\/div> <p> Les d\u00e9cisions s&rsquo;appuient sur des indicateurs concrets : saturation des liens, temps de r\u00e9ponse et qualit\u00e9 des communications. <\/p> <\/div> <div class=\"sp-benefit\"> <div class=\"sp-benefit-top\"> <div class=\"sp-benefit-icon\"> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 2 3 6v5c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V6l-9-4Zm-1 15-4-4 1.41-1.41L11 14.17l4.59-4.58L17 11l-6 6Z\"\/> <\/svg> <\/div> <h4>Une meilleure exp\u00e9rience<\/h4> <\/div> <p> Les applications m\u00e9tier, la t\u00e9l\u00e9phonie IP et la visioconf\u00e9rence b\u00e9n\u00e9ficient d&rsquo;une priorisation adapt\u00e9e aux besoins r\u00e9els. <\/p> <\/div> <div class=\"sp-benefit\"> <div class=\"sp-benefit-top\"> <div class=\"sp-benefit-icon\"> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 3v4l5-5 5 5h-4v5h-3V7h-3V3Zm-1 9h3v5h3v4H7v-4h4v-5Z\"\/> <\/svg> <\/div> <h4>Un existant mieux exploit\u00e9<\/h4> <\/div> <p> Nous recherchons d&rsquo;abord les gains possibles par la configuration, la priorisation et l&rsquo;optimisation de l&rsquo;architecture existante. <\/p> <\/div> <div class=\"sp-benefit\"> <div class=\"sp-benefit-top\"> <div class=\"sp-benefit-icon\"> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 2a10 10 0 1 0 10 10A10 10 0 0 0 12 2Zm1 15h-2v-2h2v2Zm0-4h-2V7h2v6Z\"\/> <\/svg> <\/div> <h4>Une infrastructure pr\u00e9visible<\/h4> <\/div> <p> La supervision et les seuils d&rsquo;alerte permettent d&rsquo;identifier les anomalies avant qu&rsquo;elles ne deviennent critiques. <\/p> <\/div> <\/div> <h3>Les situations que nous traitons<\/h3> <div class=\"sp-usecases\"> <div class=\"sp-usecase\"> <div class=\"sp-usecase-number\">01<\/div> <div> <h4>R\u00e9seau satur\u00e9<\/h4> <p>Identifier les flux responsables des saturations et r\u00e9allouer la bande passante selon les usages prioritaires.<\/p> <\/div> <\/div> <div class=\"sp-usecase\"> <div class=\"sp-usecase-number\">02<\/div> <div> <h4>Applications lentes<\/h4> <p>Analyser les temps de r\u00e9ponse et les chemins r\u00e9seau pour distinguer un probl\u00e8me applicatif d&rsquo;un probl\u00e8me d&rsquo;infrastructure.<\/p> <\/div> <\/div> <div class=\"sp-usecase\"> <div class=\"sp-usecase-number\">03<\/div> <div> <h4>Voix et visioconf\u00e9rence<\/h4> <p>Donner la priorit\u00e9 aux communications temps r\u00e9el afin de r\u00e9duire les perturbations li\u00e9es \u00e0 la congestion.<\/p> <\/div> <\/div> <div class=\"sp-usecase\"> <div class=\"sp-usecase-number\">04<\/div> <div> <h4>Infrastructure sous-utilis\u00e9e<\/h4> <p>Identifier les capacit\u00e9s disponibles avant de recommander un renouvellement mat\u00e9riel.<\/p> <\/div> <\/div> <div class=\"sp-usecase\"> <div class=\"sp-usecase-number\">05<\/div> <div> <h4>Manque de visibilit\u00e9<\/h4> <p>D\u00e9ployer une supervision permettant de suivre les performances et d\u00e9tecter les anomalies.<\/p> <\/div> <\/div> <div class=\"sp-usecase\"> <div class=\"sp-usecase-number\">06<\/div> <div> <h4>Besoin de continuit\u00e9<\/h4> <p>\u00c9tudier la r\u00e9partition de charge et la tol\u00e9rance de panne pour les services critiques.<\/p> <\/div> <\/div> <\/div> <h3>Domaines d&rsquo;intervention<\/h3> <p> Selon votre environnement, nous pouvons intervenir sur les composants qui influencent directement la disponibilit\u00e9 et les performances de votre syst\u00e8me d&rsquo;information. <\/p> <div class=\"sp-tech\"> <span>Gestion de la bande passante<\/span> <span>Qualit\u00e9 de service<\/span> <span>Supervision r\u00e9seau<\/span> <span>R\u00e9partition de charge<\/span> <span>Filtrage<\/span> <span>Contr\u00f4le des acc\u00e8s<\/span> <span>Optimisation r\u00e9seau<\/span> <span>Haute disponibilit\u00e9<\/span> <span>Tol\u00e9rance de panne<\/span> <span>Applications m\u00e9tier<\/span> <\/div> <h3>Questions fr\u00e9quentes<\/h3> <div class=\"sp-faq\"> <details open> <summary>Nos utilisateurs se plaignent de lenteurs. Que faire ?<\/summary> <div class=\"sp-answer\"> <p> Une campagne de mesure sur une p\u00e9riode repr\u00e9sentative permet g\u00e9n\u00e9ralement de localiser l&rsquo;origine du probl\u00e8me : saturation d&rsquo;un lien, application g\u00e9n\u00e9rant trop de trafic, \u00e9quipement sous-dimensionn\u00e9 ou point de congestion. <\/p> <\/div> <\/details> <details> <summary>Faut-il changer nos \u00e9quipements pour gagner en performance ?<\/summary> <div class=\"sp-answer\"> <p> Pas n\u00e9cessairement. Nous commen\u00e7ons par analyser et optimiser l&rsquo;existant. Un renouvellement n&rsquo;est recommand\u00e9 que lorsque les mesures montrent que les ressources actuelles ne permettent plus d&rsquo;atteindre les objectifs. <\/p> <\/div> <\/details> <details> <summary>Pouvez-vous am\u00e9liorer les performances sans diminuer la s\u00e9curit\u00e9 ?<\/summary> <div class=\"sp-answer\"> <p> Oui. La priorisation, l&rsquo;optimisation des r\u00e8gles, la segmentation et la supervision permettent d&rsquo;am\u00e9liorer la performance tout en conservant les contr\u00f4les de s\u00e9curit\u00e9 n\u00e9cessaires. <\/p> <\/div> <\/details> <details> <summary>La supervision peut-elle \u00eatre maintenue apr\u00e8s le projet ?<\/summary> <div class=\"sp-answer\"> <p> Oui. Elle peut \u00eatre int\u00e9gr\u00e9e \u00e0 un dispositif de maintenance avec des indicateurs et des seuils d&rsquo;alerte adapt\u00e9s \u00e0 votre environnement. <\/p> <\/div> <\/details> <\/div> <div class=\"sp-cta\"> <div class=\"sp-cta-content\"> <h3>Vos utilisateurs subissent-ils des lenteurs r\u00e9seau ?<\/h3> <p> Pr\u00e9sentez-nous votre environnement et vos principaux probl\u00e8mes de performance. Nous pouvons analyser les causes, identifier les priorit\u00e9s et vous proposer une d\u00e9marche d&rsquo;optimisation adapt\u00e9e. <\/p> <a class=\"sp-btn\" href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/contact\/\"> \u00c9valuer vos performances <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 13H4V11H12V4L20 12L12 20V13Z\"\/> <\/svg> <\/a> <\/div> <\/div> <\/article> <aside class=\"sp-side\"> <div class=\"sp-card\"> <h4>Nos services<\/h4> <ul class=\"sp-nav\"> <li>\n                <a\n                  href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92628\/\"\n                  aria-current=\"page\">\n                  Infrastructure R\u00e9seau\n                <\/a>\n              <\/li>\n\n              <li>\n                <a href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92630\/\">\n                  Cybers\u00e9curit\u00e9\n                <\/a>\n              <\/li>\n\n              <li>\n                <a href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92633\/\">\n                  S\u00e9curit\u00e9 &amp; Optimisation\n                <\/a>\n              <\/li>\n\n              <li>\n                <a href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92636\/\">\n                  Datacenter &amp; Cloud\n                <\/a>\n              <\/li>\n\n              <li>\n                <a href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92638\/\">\n                  Communications Unifi\u00e9es\n                <\/a>\n              <\/li>\n\n              <li>\n                <a href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92640\/\">\n                  Audit &amp; Conseil\n                <\/a>\n              <\/li> <\/ul> <\/div> <div class=\"sp-card sp-card--dark\"> <h4>Certifiez vos \u00e9quipes<\/h4> <p> Centre officiel Pearson VUE : vos administrateurs se forment et passent leur certification dans nos locaux, \u00e0 Dakar. <\/p> <a class=\"sp-btn\" href=\"https:\/\/sesam-informatics.com\/sesam-informatics1\/?page_id=92623\/\"> Voir les formations <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 13H4V11H12V4L20 12L12 20V13Z\"\/> <\/svg> <\/a> <\/div> <div class=\"sp-card\"> <h4>Une approche mesur\u00e9e<\/h4> <div class=\"sp-side-note\"> <div class=\"sp-side-note-icon\"> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 2a10 10 0 1 0 10 10A10 10 0 0 0 12 2Zm1 5h-2v6l5 3 1-1.73-4-2.27V7Z\"\/> <\/svg> <\/div> <p> Nous privil\u00e9gions l&rsquo;analyse et la mesure avant les changements d&rsquo;architecture ou les investissements mat\u00e9riels. <\/p> <\/div> <\/div> <div class=\"sp-card\"> <h4>Parler \u00e0 un ing\u00e9nieur<\/h4> <ul class=\"sp-side-contact\"> <li> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M21 16.42v3.54a1 1 0 0 1-1.09 1 19.8 19.8 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6A19.8 19.8 0 0 1 2.21 3.2 1 1 0 0 1 3.2 2h3.54a1 1 0 0 1 1 .86 12.4 12.4 0 0 0 .68 2.72 1 1 0 0 1-.23 1.05L6.9 8.03a16 16 0 0 0 6 6l1.4-1.29a1 1 0 0 1 1.05-.23 12.4 12.4 0 0 0 2.72.68 1 1 0 0 0 .86 1Z\"\/> <\/svg>\n\n<a href=\"tel:+221338675230\">+221 33 867 52 30<\/a>\n<\/li> <li> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M20 4H4a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2V6a2 2 0 0 0-2-2Zm0 4-8 5-8-5V6l8 5 8-5Z\"\/> <\/svg>\n\n<a href=\"mailto:contact@sesam.sn\">contact@sesam.sn<\/a>\n<\/li> <li> <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"> <path d=\"M12 2a7 7 0 0 0-7 7c0 5.25 7 13 7 13s7-7.75 7-13a7 7 0 0 0-7-7Zm0 9.5A2.5 2.5 0 1 1 12 6.5a2.5 2.5 0 0 1 0 5Z\"\/> <\/svg>\n\n<span>28 Cit\u00e9 Teylium VDN, Dakar 12500<\/span>\n<\/li> <\/ul> <\/div> <\/aside> <\/div> <\/div> <\/section> <\/div>  ","protected":false},"excerpt":{"rendered":"<p>Performance r\u00e9seau &amp; s\u00e9curit\u00e9 S\u00e9curit\u00e9 et optimisation des performances Une infrastructure informatique doit \u00eatre s\u00e9curis\u00e9e, disponible et performante. SESAM Informatics vous aide \u00e0 identifier les ralentissements, optimiser les flux et renforcer les contr\u00f4les sans d\u00e9grader l&rsquo;exp\u00e9rience de vos utilisateurs. Supervision Qualit\u00e9 de service Optimisation r\u00e9seau Haute disponibilit\u00e9 Mesurer avant de modifier Nous travaillons sur le&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-92633","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=\/wp\/v2\/pages\/92633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=92633"}],"version-history":[{"count":18,"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=\/wp\/v2\/pages\/92633\/revisions"}],"predecessor-version":[{"id":92928,"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=\/wp\/v2\/pages\/92633\/revisions\/92928"}],"wp:attachment":[{"href":"https:\/\/sesam-informatics.com\/sesam-informatics1\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=92633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}