{"id":22559,"date":"2024-12-19T12:57:50","date_gmt":"2024-12-19T09:57:50","guid":{"rendered":"https:\/\/www.cenuta.com\/blog\/?p=22559"},"modified":"2024-12-19T12:57:52","modified_gmt":"2024-12-19T09:57:52","slug":"dnssec-nedir","status":"publish","type":"post","link":"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/","title":{"rendered":"DNSSEC Nedir?"},"content":{"rendered":"\n<p>DNSSEC (\u201cDomain Name System Security Extensions\u201d), internetin temel bile\u015fenlerinden biri olan Alan Ad\u0131 Sistemi\u2019ni (DNS) daha g\u00fcvenli hale getirmek i\u00e7in geli\u015ftirilmi\u015f bir protokol \u00e7er\u00e7evesidir. DNSSEC, DNS sorgular\u0131na ve yan\u0131tlar\u0131na dijital imzalar ekleyerek DNS iletilerinin kimli\u011fini ve b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc korur.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7indekiler<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a6f657f53ec0\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a6f657f53ec0\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/#DNS_ve_Sorunlari\" title=\"DNS ve Sorunlar\u0131\">DNS ve Sorunlar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/#DNSSEC_Nasil_Calisir\" title=\"DNSSEC Nas\u0131l \u00c7al\u0131\u015f\u0131r?\">DNSSEC Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/#DNSSECin_Faydalari\" title=\"DNSSEC\u2019in Faydalar\u0131\">DNSSEC\u2019in Faydalar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/#DNSSEC_Uygulamasi\" title=\"DNSSEC Uygulamas\u0131\">DNSSEC Uygulamas\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/#DNSSECin_Sinirlamalari\" title=\"DNSSEC\u2019in S\u0131n\u0131rlamalar\u0131\">DNSSEC\u2019in S\u0131n\u0131rlamalar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/#Sonuc\" title=\"Sonu\u00e7\">Sonu\u00e7<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNS_ve_Sorunlari\"><\/span>DNS ve Sorunlar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>DNS, internet kullan\u0131c\u0131lar\u0131n\u0131n alan adlar\u0131 (&#8220;example.com&#8221; gibi) ile IP adresleri (&#8220;192.0.2.1&#8221; gibi) aras\u0131nda d\u00f6n\u00fc\u015f\u00fcm yapmas\u0131n\u0131 sa\u011flar. Ancak DNS tasarlan\u0131rken g\u00fcvenlik \u00f6ncelikli bir \u00f6zellik olarak d\u00fc\u015f\u00fcn\u00fclmemi\u015ftir. Bu nedenle, DNS protokol\u00fc y\u0131llar i\u00e7inde ba\u015fl\u0131ca a\u015fa\u011f\u0131daki gibi g\u00fcvenlik sorunlar\u0131na maruz kalm\u0131\u015ft\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DNS Spoofing (DNS Sahtekarl\u0131\u011f\u0131):<\/strong> Sald\u0131rganlar, DNS yan\u0131tlar\u0131n\u0131 ele ge\u00e7irip de\u011fi\u015ftirerek kullan\u0131c\u0131lar\u0131 sahte web sitelerine y\u00f6nlendirebilir.<\/li>\n\n\n\n<li><strong>Man-in-the-Middle (Aradaki Adam) Sald\u0131r\u0131lar\u0131:<\/strong> DNS iletilerini ele ge\u00e7irip bunlar\u0131 de\u011fi\u015ftirerek trafi\u011fi manip\u00fcle edebilirler.<\/li>\n\n\n\n<li><strong>Cache Poisoning (Cache Zehirleme):<\/strong> DNS sunucular\u0131n\u0131n \u00f6nbelleklerini zararl\u0131 verilerle doldurarak uzun vadeli etkiler yaratabilirler.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNSSEC_Nasil_Calisir\"><\/span>DNSSEC Nas\u0131l \u00c7al\u0131\u015f\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>DNSSEC, DNS i\u015flemine dijital imza mekanizmas\u0131 ekleyerek bu sorunlar\u0131 \u00e7\u00f6zmeyi ama\u00e7lar. DNSSEC&#8217;in temel bile\u015fenleri \u015funlard\u0131r:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Dijital \u0130mzalar:<\/strong> DNS verileri, \u00f6zel anahtarlarla imzalan\u0131r ve bu imzalar, herkese a\u00e7\u0131k anahtarlarla do\u011frulanabilir. Bu sayede, DNS yan\u0131tlar\u0131n\u0131n yetkili bir kaynaktan geldi\u011fi garanti edilir.<\/li>\n\n\n\n<li><strong>K\u0131r\u0131lma Zinciri (Chain of Trust):<\/strong> DNSSEC, k\u00fckten (root) ba\u015flayarak alt d\u00fczeydeki alan ad\u0131 sunucular\u0131na kadar olan b\u00fct\u00fcn DNS yap\u0131s\u0131n\u0131n g\u00fcvenilirli\u011fini sa\u011flar.<\/li>\n\n\n\n<li><strong>KDS (Key Signing Key) ve ZSK (Zone Signing Key):<\/strong> KDS, alan ad\u0131 imzalama anahtar\u0131n\u0131 do\u011frulamak i\u00e7in kullan\u0131lan anahtar iken, ZSK DNS kay\u0131tlar\u0131n\u0131 imzalamak i\u00e7in kullan\u0131l\u0131r.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNSSECin_Faydalari\"><\/span>DNSSEC\u2019in Faydalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Kimlik Do\u011frulama:<\/strong> DNS yan\u0131tlar\u0131n\u0131n yetkili bir kaynaktan geldi\u011fi garanti edilir.<\/li>\n\n\n\n<li><strong>Veri B\u00fct\u00fcnl\u00fc\u011f\u00fc:<\/strong> DNS yan\u0131tlar\u0131n\u0131n \u00f6zg\u00fcn\u00fcn de\u011fi\u015ftirilmedi\u011fi garanti edilir.<\/li>\n\n\n\n<li><strong>G\u00fcvenilirlik:<\/strong> Kullan\u0131c\u0131lar, do\u011fru ve g\u00fcvenilir DNS yan\u0131tlar\u0131 al\u0131r, bu da sahte sitelere y\u00f6nlendirme riskini azalt\u0131r.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNSSEC_Uygulamasi\"><\/span>DNSSEC Uygulamas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>DNSSEC, a\u015fa\u011f\u0131daki ad\u0131mlar takip edilerek uygulanabilir:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>DNSSEC Destekleyen Bir Alan Ad\u0131 Kaydedici Se\u00e7imi:<\/strong> Alan ad\u0131n\u0131z\u0131 kaydeden firman\u0131n DNSSEC deste\u011fi sunmas\u0131 gerekir.<\/li>\n\n\n\n<li><strong>Anahtar Y\u00f6netimi:<\/strong> KDS ve ZSK anahtarlar\u0131 olu\u015fturulur ve y\u00f6netilir.<\/li>\n\n\n\n<li><strong>DNS Sunucusunun Yap\u0131land\u0131r\u0131lmas\u0131:<\/strong> DNS sunucusu, DNSSEC deste\u011fi sa\u011flayacak \u015fekilde ayarlan\u0131r.<\/li>\n\n\n\n<li><strong>Kay\u0131tlar\u0131n \u0130mzalanmas\u0131:<\/strong> DNS kay\u0131tlar\u0131 dijital imzalarla korunur.<\/li>\n\n\n\n<li><strong>DS Kayd\u0131n\u0131n \u00dclt Alan Ad\u0131 Sunucusuna Eklenmesi:<\/strong> G\u00fcven zincirinin bir par\u00e7as\u0131 olarak, \u00fclt alan ad\u0131 sunucusuna DS kay\u0131tlar\u0131 eklenir.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNSSECin_Sinirlamalari\"><\/span>DNSSEC\u2019in S\u0131n\u0131rlamalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Yayg\u0131n Kullan\u0131m Eksikli\u011fi:<\/strong> Her alan ad\u0131n\u0131n ve DNS sunucusunun DNSSEC desteklemesi gerektirir.<\/li>\n\n\n\n<li><strong>Performans:<\/strong> Dijital imzalar ve do\u011frulama s\u00fcreci ek y\u00fck getirir.<\/li>\n\n\n\n<li><strong>Karma\u015f\u0131kl\u0131k:<\/strong> Anahtar y\u00f6netimi ve DNSSEC konfig\u00fcrasyonu teknik bilgi gerektirir.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sonuc\"><\/span>Sonu\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>DNSSEC, DNS protokol\u00fcne \u00f6nemli bir g\u00fcvenlik katman\u0131 ekleyerek internetin daha g\u00fcvenli bir \u015fekilde i\u015flemesini sa\u011flar. Ancak, tam anlam\u0131yla etkili olabilmesi i\u00e7in DNSSEC\u2019in daha yayg\u0131n hale gelmesi ve d\u00fczg\u00fcn \u015fekilde uygulanmas\u0131 gerekmektedir. DNSSEC&#8217;in karma\u015f\u0131kl\u0131klar\u0131na ra\u011fmen, modern internet altyap\u0131lar\u0131nda g\u00fcvenli\u011fi art\u0131rmak i\u00e7in \u00f6nemli bir arac\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DNSSEC (\u201cDomain Name System Security Extensions\u201d), internetin temel bile\u015fenlerinden biri<a href=\"https:\/\/www.cenuta.com\/blog\/dnssec-nedir\/\">&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":22561,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-22559","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\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.cenuta.com\/blog\/dnssec-nedir\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DNSSEC Nedir? 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