{"id":848,"date":"2026-06-24T19:18:47","date_gmt":"2026-06-24T19:18:47","guid":{"rendered":"https:\/\/hostabil.com\/blog\/?p=848"},"modified":"2026-06-29T00:21:15","modified_gmt":"2026-06-29T00:21:15","slug":"dns-amplification-saldirisi-nedir-ve-nasil-korunulur","status":"publish","type":"post","link":"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/","title":{"rendered":"DNS Amplification Sald\u0131r\u0131s\u0131 Nedir ve Nas\u0131l Korunulur?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7erikler<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#DNS_Amplification_Saldirisi_Nedir_ve_Nasil_Korunulur\" >DNS Amplification Sald\u0131r\u0131s\u0131 Nedir ve Nas\u0131l Korunulur?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#DNS_Amplification_Saldirisi_Nasil_Gerceklesir\" >DNS Amplification Sald\u0131r\u0131s\u0131 Nas\u0131l Ger\u00e7ekle\u015fir?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#Saldirinin_Etkileri_Nelerdir\" >Sald\u0131r\u0131n\u0131n Etkileri Nelerdir?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#DNS_Amplification_Saldirisindan_Nasil_Korunulur\" >DNS Amplification Sald\u0131r\u0131s\u0131ndan Nas\u0131l Korunulur?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#1_Windows_Server_ile_Recursion_Kapatma\" >1. Windows Server ile Recursion Kapatma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#3_Linux_BIND_DNS_ile_Recursion_Kapatma\" >3. Linux (BIND DNS) ile Recursion Kapatma<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#Yapilan_Islemin_Test_Edilmesi_Acik_mi_Kapali_mi\" >Yap\u0131lan \u0130\u015flemin Test Edilmesi (A\u00e7\u0131k m\u0131, Kapal\u0131 m\u0131?)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#Yontem_A_Windows_CMD_Komut_Satiri_ile_Test\" >Y\u00f6ntem A: Windows CMD (Komut Sat\u0131r\u0131) ile Test<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hostabil.com\/blog\/dns-amplification-saldirisi-nedir-ve-nasil-korunulur\/#Yontem_B_Online_Dis_Servis_ile_Test\" >Y\u00f6ntem B: Online D\u0131\u015f Servis ile Test<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 data-path-to-node=\"3\"><span class=\"ez-toc-section\" id=\"DNS_Amplification_Saldirisi_Nedir_ve_Nasil_Korunulur\"><\/span>DNS Amplification Sald\u0131r\u0131s\u0131 Nedir ve Nas\u0131l Korunulur?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"4\"><b data-path-to-node=\"4\" data-index-in-node=\"0\">DNS Amplification (DNS Y\u00fckseltme) Sald\u0131r\u0131s\u0131<\/b>, siber sald\u0131rganlar\u0131n a\u00e7\u0131k durumdaki DNS sunucular\u0131n\u0131 (Open Resolver) kullanarak hedef bir sistemi devasa bir trafik alt\u0131nda b\u0131rak\u0131p \u00e7\u00f6kertmeyi ama\u00e7lad\u0131\u011f\u0131 bir <b data-path-to-node=\"4\" data-index-in-node=\"203\">DDoS (Da\u011f\u0131t\u0131k Hizmet Engelleme)<\/b> t\u00fcr\u00fcd\u00fcr.<\/p>\n<h3 data-path-to-node=\"2\"><span class=\"ez-toc-section\" id=\"DNS_Amplification_Saldirisi_Nasil_Gerceklesir\"><\/span>DNS Amplification Sald\u0131r\u0131s\u0131 Nas\u0131l Ger\u00e7ekle\u015fir?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"3\">Sald\u0131rganlar, bu sald\u0131r\u0131y\u0131 ba\u015far\u0131yla y\u00fcr\u00fctmek i\u00e7in ad\u0131m ad\u0131m \u015fu organizasyonu ger\u00e7ekle\u015ftirirler:<\/p>\n<ol start=\"1\" data-path-to-node=\"4\">\n<li>\n<p data-path-to-node=\"4,0,0\"><b data-path-to-node=\"4,0,0\" data-index-in-node=\"0\">A\u00e7\u0131k DNS Sunucular\u0131n\u0131 (Open Resolver) Tespit Eder:<\/b> Sald\u0131rganlar, interneti tarayarak <b data-path-to-node=\"4,0,0\" data-index-in-node=\"85\">DNS Recursion<\/b> \u00f6zelli\u011fi herkese a\u00e7\u0131k b\u0131rak\u0131lm\u0131\u015f, savunmas\u0131z DNS sunucular\u0131n\u0131 listeler. Bu sunucular, sald\u0131rgan\u0131n ana silah\u0131 haline gelecektir.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,1,0\"><b data-path-to-node=\"4,1,0\" data-index-in-node=\"0\">Sahte IP (Spoofed IP) ile Sorgu G\u00f6nderir:<\/b> Sald\u0131rgan, hedef ald\u0131\u011f\u0131 kurban sistemin IP adresini taklit ederek (IP Spoofing y\u00f6ntemiyle) a\u00e7\u0131k DNS sunucular\u0131na sorgu g\u00f6nderir. Bu sorgular \u00f6zellikle standart bir web sitesi adresi yerine, geriye \u00e7ok b\u00fcy\u00fck boyutlu veri d\u00f6nd\u00fcrecek \u00f6zel kay\u0131tlar\u0131 (\u00f6rne\u011fin <code data-path-to-node=\"4,1,0\" data-index-in-node=\"297\">ANY<\/code> veya <code data-path-to-node=\"4,1,0\" data-index-in-node=\"306\">TXT<\/code> kay\u0131tlar\u0131) talep eder.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,2,0\"><b data-path-to-node=\"4,2,0\" data-index-in-node=\"0\">DNS Yan\u0131tlar\u0131 Do\u011frudan Hedefe Y\u00f6nlenir:<\/b> A\u00e7\u0131k DNS sunucusu, gelen sorgunun sahte bir IP&#8217;den geldi\u011fini anlayamaz. G\u00f6revi gere\u011fi iste\u011fi i\u015fler ve \u00fcretti\u011fi devasa boyutlu yan\u0131t paketlerini, sorguyu g\u00f6nderen sald\u0131rgana de\u011fil, taklit edilen IP adresine (yani hedef sisteme) postalar.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"4,3,0\"><b data-path-to-node=\"4,3,0\" data-index-in-node=\"0\">Hedef Sistem Trafik Alt\u0131nda Ezilir:<\/b> Ayn\u0131 anda binlerce a\u00e7\u0131k DNS sunucusundan hedef sisteme do\u011fru akan bu devasa boyutlu yan\u0131t paketleri, hedef sistemin a\u011f hatlar\u0131n\u0131 saniyeler i\u00e7inde kilitler.<\/p>\n<\/li>\n<\/ol>\n<h3 data-path-to-node=\"5\"><span class=\"ez-toc-section\" id=\"Saldirinin_Etkileri_Nelerdir\"><\/span>Sald\u0131r\u0131n\u0131n Etkileri Nelerdir?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-path-to-node=\"6,0,0\" data-index-in-node=\"0\">Bant Geni\u015fli\u011finin (Bandwidth) T\u0131kanmas\u0131:<\/b> Sald\u0131r\u0131 s\u0131ras\u0131nda \u00fcretilen veri miktar\u0131, gelen sorgunun onlarca kat\u0131 b\u00fcy\u00fckl\u00fckte oldu\u011fu i\u00e7in hedef a\u011f\u0131n kapasitesini (saturasyon) tamamen doldurur.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-path-to-node=\"6,1,0\" data-index-in-node=\"0\">Hizmet Kesintisi (DDoS):<\/b> Me\u015fru ve ger\u00e7ek kullan\u0131c\u0131lar, bant geni\u015fli\u011fi tamamen sahte DNS yan\u0131tlar\u0131yla dolu oldu\u011fu i\u00e7in sisteme veya web sitesine eri\u015femez hale gelir.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,2,0\"><b data-path-to-node=\"6,2,0\" data-index-in-node=\"0\">Zincirleme Hizmet Kay\u0131plar\u0131:<\/b> A\u011f hatlar\u0131n\u0131n kilitlenmesi, sadece DNS veya web sunucusunu de\u011fil, ayn\u0131 veri merkezinde veya ayn\u0131 a\u011f altyap\u0131s\u0131nda bulunan di\u011fer t\u00fcm kritik servisleri de (e-posta, API, veritaban\u0131 vb.) etkileyerek uzun s\u00fcreli ve maliyetli kesintilere yol a\u00e7ar.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"2\"><span class=\"ez-toc-section\" id=\"DNS_Amplification_Saldirisindan_Nasil_Korunulur\"><\/span>DNS Amplification Sald\u0131r\u0131s\u0131ndan Nas\u0131l Korunulur?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"3\">Hangi platformu veya kontrol panelini kullan\u0131yorsan\u0131z, a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 s\u0131ras\u0131yla takip ederek DNS Recursion \u00f6zelli\u011fini g\u00fcvenli bir \u015fekilde kapatabilirsiniz.<\/p>\n<h3 data-path-to-node=\"4\"><span class=\"ez-toc-section\" id=\"1_Windows_Server_ile_Recursion_Kapatma\"><\/span>1. Windows Server ile Recursion Kapatma<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol start=\"1\" data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\"><b data-path-to-node=\"5,0,0\" data-index-in-node=\"0\">DNS Manager&#8217;\u0131 A\u00e7\u0131n:<\/b> Ba\u015flat men\u00fcs\u00fcn\u00fc a\u00e7\u0131p arama \u00e7ubu\u011funa <code data-path-to-node=\"5,0,0\" data-index-in-node=\"56\">DNS<\/code> yazarak Microsoft DNS y\u00f6netim ekran\u0131n\u0131 a\u00e7\u0131n.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-849\" src=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1-300x142.webp\" alt=\"\" width=\"790\" height=\"374\" srcset=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1-300x142.webp 300w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1-1024x485.webp 1024w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1-768x364.webp 768w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1-1536x728.webp 1536w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1-1000x474.webp 1000w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/1_1.webp 1658w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/li>\n<li>\n<p data-path-to-node=\"5,1,0\"><b data-path-to-node=\"5,1,0\" data-index-in-node=\"0\">\u00d6zelliklere Girin:<\/b> Sol tarafta bulunan sunucu ad\u0131n\u0131za sa\u011f t\u0131klay\u0131n ve <b data-path-to-node=\"5,1,0\" data-index-in-node=\"70\">Properties (\u00d6zellikler)<\/b> se\u00e7ene\u011fine t\u0131klay\u0131n.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-850\" src=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/2_2-300x212.webp\" alt=\"\" width=\"768\" height=\"543\" srcset=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/2_2-300x212.webp 300w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/2_2.webp 755w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/li>\n<li>\n<p data-path-to-node=\"5,2,0\"><b data-path-to-node=\"5,2,0\" data-index-in-node=\"0\">Recursion&#8217;\u0131 Devre D\u0131\u015f\u0131 B\u0131rak\u0131n:<\/b> \u00dcst sekmelerden <b data-path-to-node=\"5,2,0\" data-index-in-node=\"48\">Advanced (Geli\u015fmi\u015f)<\/b> b\u00f6l\u00fcm\u00fcne ge\u00e7in. Se\u00e7enekler listesinde yer alan <b data-path-to-node=\"5,2,0\" data-index-in-node=\"115\">&#8220;Disable recursion (also disables forwarders)&#8221;<\/b> kutucu\u011funu i\u015faretleyin.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-851\" src=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/3_3-300x253.webp\" alt=\"\" width=\"762\" height=\"643\" srcset=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/3_3-300x253.webp 300w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/3_3.webp 613w\" sizes=\"auto, (max-width: 762px) 100vw, 762px\" \/><\/li>\n<li>\n<p data-path-to-node=\"5,3,0\"><b data-path-to-node=\"5,3,0\" data-index-in-node=\"0\">Servisi Yeniden Ba\u015flat\u0131n:<\/b> De\u011fi\u015fikliklerin aktif olmas\u0131 i\u00e7in sol men\u00fcdeki sunucu ad\u0131n\u0131za tekrar sa\u011f t\u0131klay\u0131n, <b data-path-to-node=\"5,3,0\" data-index-in-node=\"109\">All Tasks &gt; Restart<\/b> se\u00e7ene\u011fini se\u00e7erek DNS servisini yeniden ba\u015flat\u0131n.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-852\" src=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/4_4-300x209.webp\" alt=\"\" width=\"764\" height=\"532\" srcset=\"https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/4_4-300x209.webp 300w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/4_4-400x280.webp 400w, https:\/\/hostabil.com\/blog\/wp-content\/uploads\/2026\/06\/4_4.webp 751w\" sizes=\"auto, (max-width: 764px) 100vw, 764px\" \/><\/li>\n<\/ol>\n<h3 data-path-to-node=\"10\"><span class=\"ez-toc-section\" id=\"3_Linux_BIND_DNS_ile_Recursion_Kapatma\"><\/span>3. Linux (BIND DNS) ile Recursion Kapatma<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol start=\"1\" data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\"><b data-path-to-node=\"11,0,0\" data-index-in-node=\"0\">Sunucuya Ba\u011flan\u0131n:<\/b> Terminal \u00fczerinden SSH ile sunucunuza <code data-path-to-node=\"11,0,0\" data-index-in-node=\"57\">root<\/code> olarak yetki sa\u011flay\u0131n.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\"><b data-path-to-node=\"11,1,0\" data-index-in-node=\"0\">Konfig\u00fcrasyon Dosyas\u0131n\u0131 A\u00e7\u0131n:<\/b> A\u015fa\u011f\u0131daki komutu kullanarak BIND yap\u0131land\u0131rma dosyas\u0131n\u0131 nano edit\u00f6r\u00fcyle a\u00e7\u0131n:<\/p>\n<div class=\"code-block ng-tns-c3817116026-41 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" data-hveid=\"0\" data-ved=\"0CAAQhtANahcKEwi-lIqbx6CVAxUAAAAAHQAAAAAQUw\">\n<div class=\"formatted-code-block-internal-container ng-tns-c3817116026-41\">\n<div class=\"animated-opacity ng-tns-c3817116026-41\">\n<pre class=\"ng-tns-c3817116026-41\"><code class=\"code-container formatted ng-tns-c3817116026-41\" role=\"text\" data-test-id=\"code-content\">nano \/etc\/named.conf\r\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\"><b data-path-to-node=\"11,2,0\" data-index-in-node=\"0\">Parametreyi G\u00fcncelleyin:<\/b> Dosya i\u00e7inde h\u0131zl\u0131ca arama yapmak i\u00e7in <code data-path-to-node=\"11,2,0\" data-index-in-node=\"64\">CTRL + W<\/code> tu\u015f kombinasyonunu kullan\u0131n ve <code data-path-to-node=\"11,2,0\" data-index-in-node=\"104\">recursion<\/code> kelimesini arat\u0131n. E\u011fer <code data-path-to-node=\"11,2,0\" data-index-in-node=\"138\">recursion yes;<\/code> \u015feklinde bir sat\u0131r varsa bunu \u015fu \u015fekilde de\u011fi\u015ftirin:<\/p>\n<div class=\"code-block ng-tns-c3817116026-42 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" data-hveid=\"0\" data-ved=\"0CAAQhtANahcKEwi-lIqbx6CVAxUAAAAAHQAAAAAQVA\">\n<div class=\"formatted-code-block-internal-container ng-tns-c3817116026-42\">\n<div class=\"animated-opacity ng-tns-c3817116026-42\">\n<pre class=\"ng-tns-c3817116026-42\"><code class=\"code-container formatted ng-tns-c3817116026-42\" role=\"text\" data-test-id=\"code-content\">recursion no;\r\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\n<p data-path-to-node=\"11,3,0\"><b data-path-to-node=\"11,3,0\" data-index-in-node=\"0\">Kaydedin ve \u00c7\u0131k\u0131n:<\/b> D\u00fczenlemeyi bitirdikten sonra <code data-path-to-node=\"11,3,0\" data-index-in-node=\"49\">CTRL + X<\/code> tu\u015flar\u0131na bas\u0131n, gelen soruya <code data-path-to-node=\"11,3,0\" data-index-in-node=\"88\">Y<\/code> (Evet) yan\u0131t\u0131n\u0131 verip <code data-path-to-node=\"11,3,0\" data-index-in-node=\"112\">Enter<\/code> ile dosyay\u0131 kaydedin.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,4,0\"><b data-path-to-node=\"11,4,0\" data-index-in-node=\"0\">Servisi Yeniden Ba\u015flat\u0131n:<\/b> De\u011fi\u015fiklikleri sunucuya yans\u0131tmak i\u00e7in DNS servisini yeniden ba\u015flat\u0131n:<\/p>\n<div class=\"code-block ng-tns-c3817116026-43 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" data-hveid=\"0\" data-ved=\"0CAAQhtANahcKEwi-lIqbx6CVAxUAAAAAHQAAAAAQVQ\">\n<div class=\"formatted-code-block-internal-container ng-tns-c3817116026-43\">\n<div class=\"animated-opacity ng-tns-c3817116026-43\">\n<pre class=\"ng-tns-c3817116026-43\"><code class=\"code-container formatted ng-tns-c3817116026-43\" role=\"text\" data-test-id=\"code-content\">service named restart\r\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p data-path-to-node=\"11,4,2\"><i data-path-to-node=\"11,4,2\" data-index-in-node=\"0\">(G\u00f6rsel: serkan.tr\/gorseller\/9_9.webp)<\/i><\/p>\n<\/li>\n<\/ol>\n<h2 data-path-to-node=\"13\"><span class=\"ez-toc-section\" id=\"Yapilan_Islemin_Test_Edilmesi_Acik_mi_Kapali_mi\"><\/span>Yap\u0131lan \u0130\u015flemin Test Edilmesi (A\u00e7\u0131k m\u0131, Kapal\u0131 m\u0131?)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-path-to-node=\"14\">Yapt\u0131\u011f\u0131n\u0131z de\u011fi\u015fikliklerin ba\u015far\u0131l\u0131 olup olmad\u0131\u011f\u0131n\u0131 do\u011frulamak i\u00e7in a\u015fa\u011f\u0131daki iki y\u00f6ntemden birini kullanabilirsiniz:<\/p>\n<h3 data-path-to-node=\"15\"><span class=\"ez-toc-section\" id=\"Yontem_A_Windows_CMD_Komut_Satiri_ile_Test\"><\/span>Y\u00f6ntem A: Windows CMD (Komut Sat\u0131r\u0131) ile Test<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"16\">Bilgisayar\u0131n\u0131zda komut istemini (CMD) a\u00e7\u0131n ve a\u015fa\u011f\u0131daki <code data-path-to-node=\"16\" data-index-in-node=\"56\">nslookup<\/code> komutunu yazarak sorgulama yap\u0131n:<\/p>\n<div class=\"code-block ng-tns-c3817116026-44 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" data-hveid=\"0\" data-ved=\"0CAAQhtANahcKEwi-lIqbx6CVAxUAAAAAHQAAAAAQVg\">\n<div class=\"formatted-code-block-internal-container ng-tns-c3817116026-44\">\n<div class=\"animated-opacity ng-tns-c3817116026-44\">\n<div class=\"code-block-decoration header-formatted gds-emphasized-body-m ng-tns-c3817116026-44 ng-star-inserted\">\n<p><span class=\"ng-tns-c3817116026-44\">DOS<\/span><\/p>\n<div class=\"buttons ng-tns-c3817116026-44 ng-star-inserted\"><\/div>\n<\/div>\n<pre class=\"ng-tns-c3817116026-44\"><code class=\"code-container formatted ng-tns-c3817116026-44\" role=\"text\" data-test-id=\"code-content\">nslookup -q=a trnog.<span class=\"hljs-built_in\">net<\/span> <span class=\"hljs-number\">1<\/span>.<span class=\"hljs-number\">1<\/span>.<span class=\"hljs-number\">1<\/span>.<span class=\"hljs-number\">1<\/span>\r\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<ul data-path-to-node=\"18\">\n<li>\n<p data-path-to-node=\"18,0,0\"><b data-path-to-node=\"18,0,0\" data-index-in-node=\"0\">G\u00fcvenli Sonu\u00e7 (Recursion Kapal\u0131):<\/b> \u00c7\u0131kt\u0131 olarak <b data-path-to-node=\"18,0,0\" data-index-in-node=\"47\">&#8220;Query refused&#8221;<\/b> (Sorgu reddedildi) veya benzeri bir engelleme uyar\u0131s\u0131 al\u0131yorsan\u0131z i\u015flem ba\u015far\u0131yla tamamlanm\u0131\u015ft\u0131r. Sunucunuz d\u0131\u015far\u0131ya kapat\u0131lm\u0131\u015ft\u0131r.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,1,0\"><b data-path-to-node=\"18,1,0\" data-index-in-node=\"0\">Riskli Sonu\u00e7 (Recursion A\u00e7\u0131k):<\/b> E\u011fer <code data-path-to-node=\"18,1,0\" data-index-in-node=\"36\">trnog.net<\/code> adresine ait IP adresleri listeleniyorsa, sunucunuz hala d\u0131\u015f sorgulara yan\u0131t veriyor demektir. Ad\u0131mlar\u0131 tekrar kontrol etmelisiniz.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"19\"><span class=\"ez-toc-section\" id=\"Yontem_B_Online_Dis_Servis_ile_Test\"><\/span>Y\u00f6ntem B: Online D\u0131\u015f Servis ile Test<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"20\">Taray\u0131c\u0131n\u0131z \u00fczerinden <a class=\"ng-star-inserted\" href=\"https:\/\/intodns.com\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahcKEwi-lIqbx6CVAxUAAAAAHQAAAAAQVw\">intoDNS<\/a> web sitesine giri\u015f yap\u0131n. Kendi alan ad\u0131n\u0131z\u0131 (domain) yazarak sorgulat\u0131n. Sayfa \u00fczerinde yer alan DNS analizi alan\u0131ndan sunucunuzun harici sorgulara a\u00e7\u0131k olup olmad\u0131\u011f\u0131n\u0131 (Open Resolver durumunu) kolayca kontrol edebilirsiniz. <i data-path-to-node=\"20\" data-index-in-node=\"256\">(G\u00f6rsel: serkan.tr\/gorseller\/9_9.jpg)<\/i><\/p>\n<blockquote data-path-to-node=\"21\">\n<p data-path-to-node=\"21,0\">\u26a0\ufe0f <b data-path-to-node=\"21,0\" data-index-in-node=\"3\">\u00d6nemli Not:<\/b> DNS Recursion \u00f6zelli\u011finin d\u0131\u015f d\u00fcnyaya (public) tamamen a\u00e7\u0131k olmas\u0131, sunucunuzun bir <b data-path-to-node=\"21,0\" data-index-in-node=\"99\">DNS Amplification<\/b> sald\u0131r\u0131s\u0131nda k\u00f6pr\u00fc olarak kullan\u0131lmas\u0131na yol a\u00e7ar. G\u00fcvenli yap\u0131land\u0131rma i\u00e7in bu \u00f6zellik yaln\u0131zca yerel istemcilerin (<code data-path-to-node=\"21,0\" data-index-in-node=\"234\">localhost<\/code> veya i\u00e7 a\u011f\u0131n\u0131z) kullan\u0131m\u0131yla s\u0131n\u0131rland\u0131r\u0131lmal\u0131d\u0131r.<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>DNS Amplification Sald\u0131r\u0131s\u0131 Nedir ve Nas\u0131l Korunulur? DNS Amplification (DNS Y\u00fckseltme) Sald\u0131r\u0131s\u0131, siber sald\u0131rganlar\u0131n a\u00e7\u0131k durumdaki DNS sunucular\u0131n\u0131 (Open Resolver) kullanarak hedef bir sistemi devasa bir trafik alt\u0131nda b\u0131rak\u0131p \u00e7\u00f6kertmeyi ama\u00e7lad\u0131\u011f\u0131 bir DDoS (Da\u011f\u0131t\u0131k Hizmet Engelleme) t\u00fcr\u00fcd\u00fcr. DNS Amplification Sald\u0131r\u0131s\u0131 Nas\u0131l Ger\u00e7ekle\u015fir? Sald\u0131rganlar, bu sald\u0131r\u0131y\u0131 ba\u015far\u0131yla y\u00fcr\u00fctmek i\u00e7in ad\u0131m ad\u0131m \u015fu organizasyonu ger\u00e7ekle\u015ftirirler: A\u00e7\u0131k DNS [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":856,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,22,24],"tags":[115,107,101,100,98,104,99,109,103,106,114,110,102,108,116,111,113,53,112,105],"class_list":["post-848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nedir","category-diger","category-sss","tag-bant-genisligi-tikanmasi","tag-bnd-named-conf-ayarlari","tag-ddos-koruma","tag-ddos-saldirisi-nedir","tag-dns-amplification-nedir","tag-dns-recursion-kapatma","tag-dns-yukseltme-saldirisi","tag-intodns-kullanimi","tag-ip-spoofing","tag-linux-bind-dns-recursion","tag-network-guvenligi","tag-nslookup-komutlari","tag-open-resolver-nedir","tag-open-resolver-testi","tag-query-refused-hatasi","tag-siber-guvenlik","tag-siber-saldiri-turleri","tag-sunucu-guvenligi","tag-sunucu-optimizasyonu","tag-windows-server-dns-recursion"],"_links":{"self":[{"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/posts\/848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/comments?post=848"}],"version-history":[{"count":4,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/posts\/848\/revisions"}],"predecessor-version":[{"id":857,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/posts\/848\/revisions\/857"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/media\/856"}],"wp:attachment":[{"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/media?parent=848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/categories?post=848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hostabil.com\/blog\/wp-json\/wp\/v2\/tags?post=848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}