{"id":9757,"date":"2025-08-30T00:35:55","date_gmt":"2025-08-29T23:35:55","guid":{"rendered":"https:\/\/www.hostragons.com\/?p=9757"},"modified":"2025-10-20T21:10:54","modified_gmt":"2025-10-20T20:10:54","slug":"apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum","status":"publish","type":"post","link":"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/","title":{"rendered":"Konfigurasi TLS\/SSL lan Kesalahan Umum"},"content":{"rendered":"<p>Bu blog yaz\u0131s\u0131, TLS\/SSL yap\u0131land\u0131rmas\u0131 hakk\u0131nda kapsaml\u0131 bir rehber sunmaktad\u0131r. TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131n ne oldu\u011funu, \u00f6nemini ve ama\u00e7lar\u0131n\u0131 detayl\u0131 bir \u015fekilde a\u00e7\u0131klarken, ad\u0131m ad\u0131m yap\u0131land\u0131rma s\u00fcrecini de ele almaktad\u0131r. Ayr\u0131ca, yayg\u0131n TLS\/SSL yap\u0131land\u0131rma hatalar\u0131na dikkat \u00e7ekerek, bu hatalardan nas\u0131l ka\u00e7\u0131n\u0131laca\u011f\u0131n\u0131 anlatmaktad\u0131r. TLS\/SSL protokol\u00fcn\u00fcn \u00e7al\u0131\u015fma prensibi, sertifika t\u00fcrleri ve \u00f6zellikleri incelenirken, g\u00fcvenlik ve performans aras\u0131ndaki denge de vurgulanmaktad\u0131r. \u0130htiya\u00e7 duyulan ara\u00e7lar, sertifika y\u00f6netimi ve g\u00fcncellemeleri gibi pratik bilgiler sunulurken, ileriye d\u00f6n\u00fck \u00f6nerilerle de okuyucuya yol g\u00f6sterilmektedir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Yapilandirmasi_Nedir\"><\/span>TLS\/SSL Yap\u0131land\u0131rmas\u0131 Nedir?<span class=\"ez-toc-section-end\"><\/span><\/h2><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\u00e7erik Haritas\u0131<\/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:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Yapilandirmasi_Nedir\" >TLS\/SSL Yap\u0131land\u0131rmas\u0131 Nedir?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Yapilandirmasinin_Onemi_ve_Amaclari\" >TLS\/SSL Yap\u0131land\u0131rmas\u0131n\u0131n \u00d6nemi ve Ama\u00e7lar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Yapilandirmasinda_Adim_Adim_Surec\" >TLS\/SSL Yap\u0131land\u0131rmas\u0131nda Ad\u0131m Ad\u0131m S\u00fcre\u00e7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#Yaygin_TLSSSL_Yapilandirma_Hatalari\" >Yayg\u0131n TLS\/SSL Yap\u0131land\u0131rma Hatalar\u0131<\/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:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Yapilandirma_Hatasi_Ornekleri\" >TLS\/SSL Yap\u0131land\u0131rma Hatas\u0131 \u00d6rnekleri<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Protokolunun_Calisma_Prensibi\" >TLS\/SSL Protokol\u00fcn\u00fcn \u00c7al\u0131\u015fma Prensibi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Protokolu_Asamalari\" >TLS\/SSL Protokol\u00fc A\u015famalar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Protokolunde_Kullanilan_Sifreleme_Turleri\" >TLS\/SSL Protokol\u00fcnde Kullan\u0131lan \u015eifreleme T\u00fcrleri<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Sertifikalarinin_Turleri_ve_Ozellikleri\" >TLS\/SSL Sertifikalar\u0131n\u0131n T\u00fcrleri ve \u00d6zellikleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Yapilandirmasinda_Guvenlik_ve_Performans\" >TLS\/SSL Yap\u0131land\u0131rmas\u0131nda G\u00fcvenlik ve Performans<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Yapilandirmasi_Icin_Gereken_Araclar\" >TLS\/SSL Yap\u0131land\u0131rmas\u0131 \u0130\u00e7in Gereken Ara\u00e7lar<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#TLSSSL_Sertifika_Yonetimi_ve_Guncellemeleri\" >TLS\/SSL Sertifika Y\u00f6netimi ve G\u00fcncellemeleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#Sonuc_ve_Ileriye_Donuk_Oneriler\" >Sonu\u00e7 ve \u0130leriye D\u00f6n\u00fck \u00d6neriler<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.hostragons.com\/jv\/blog\/apa-konfigurasi-tls-ssl-pentinge-lan-kesalahan-umum\/#Sik_Sorulan_Sorular\" >S\u0131k Sorulan Sorular<\/a><\/li><\/ul><\/nav><\/div>\n\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong>, web sunucular\u0131 ve istemciler aras\u0131ndaki ileti\u015fimin g\u00fcvenli bir \u015fekilde \u015fifrelenmesini sa\u011flamak amac\u0131yla yap\u0131lan teknik d\u00fczenlemeler b\u00fct\u00fcn\u00fcd\u00fcr. Bu yap\u0131land\u0131rma, hassas verilerin (\u00f6rne\u011fin, kullan\u0131c\u0131 adlar\u0131, parolalar, kredi kart\u0131 bilgileri) yetkisiz eri\u015fimlere kar\u015f\u0131 korunmas\u0131n\u0131 hedefler. Temel olarak, bir web sitesinin veya uygulaman\u0131n g\u00fcvenli\u011fini art\u0131rmak i\u00e7in SSL\/TLS protokollerinin do\u011fru bir \u015fekilde ayarlanmas\u0131 ve uygulanmas\u0131 s\u00fcrecini ifade eder.<\/p>\n<p>Bu s\u00fcre\u00e7, genellikle bir <strong>SSL\/TLS sertifikas\u0131<\/strong> edinmekle ba\u015flar. Sertifika, bir web sitesinin kimli\u011fini do\u011frular ve taray\u0131c\u0131lar ile sunucu aras\u0131nda g\u00fcvenli bir ba\u011flant\u0131 kurulmas\u0131n\u0131 sa\u011flar. Sertifika kurulumunun ard\u0131ndan, sunucu \u00fczerinde belirli yap\u0131land\u0131rma ayarlar\u0131 yap\u0131larak, hangi \u015fifreleme algoritmalar\u0131n\u0131n kullan\u0131laca\u011f\u0131, hangi protokol s\u00fcr\u00fcmlerinin desteklenece\u011fi gibi kritik kararlar al\u0131n\u0131r. Bu ayarlar, hem g\u00fcvenlik seviyesini hem de performans\u0131 do\u011frudan etkileyebilir.<\/p>\n<ul>\n<li>Sertifika Edinme: G\u00fcvenilir bir sertifika sa\u011flay\u0131c\u0131s\u0131ndan SSL\/TLS sertifikas\u0131 sat\u0131n al\u0131n\u0131r.<\/li>\n<li>Sertifika Kurulumu: Al\u0131nan sertifika, web sunucusuna y\u00fcklenir ve yap\u0131land\u0131r\u0131l\u0131r.<\/li>\n<li>Protokol Se\u00e7imi: TLS protokol\u00fcn\u00fcn hangi s\u00fcr\u00fcmlerinin (\u00f6rne\u011fin, TLS 1.2, TLS 1.3) kullan\u0131laca\u011f\u0131na karar verilir.<\/li>\n<li>\u015eifreleme Algoritmalar\u0131: G\u00fcvenli ve g\u00fcncel \u015fifreleme algoritmalar\u0131 se\u00e7ilir.<\/li>\n<li>HTTP Y\u00f6nlendirmesi: HTTP istekleri otomatik olarak HTTPS&#8217;ye y\u00f6nlendirilir.<\/li>\n<li>S\u00fcrekli \u0130zleme: Sertifika ge\u00e7erlilik s\u00fcresi ve yap\u0131land\u0131rma ayarlar\u0131 d\u00fczenli olarak kontrol edilir.<\/li>\n<\/ul>\n<p><strong>Do\u011fru bir TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong>, yaln\u0131zca veri g\u00fcvenli\u011fini sa\u011flamakla kalmaz, ayn\u0131 zamanda arama motoru s\u0131ralamalar\u0131n\u0131 da olumlu y\u00f6nde etkiler. Google gibi arama motorlar\u0131, g\u00fcvenli web sitelerini daha \u00fcst s\u0131ralarda listeler. Yanl\u0131\u015f veya eksik yap\u0131land\u0131rmalar ise, g\u00fcvenlik a\u00e7\u0131klar\u0131na ve performans sorunlar\u0131na yol a\u00e7abilir. Bu nedenle, bu s\u00fcrecin dikkatli ve bilgili bir \u015fekilde y\u00f6netilmesi b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r.<\/p>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrekli bir s\u00fcre\u00e7tir. Yeni g\u00fcvenlik a\u00e7\u0131klar\u0131 ortaya \u00e7\u0131kt\u0131k\u00e7a ve protokoller geli\u015ftik\u00e7e, yap\u0131land\u0131rman\u0131n g\u00fcncel tutulmas\u0131 gerekir. Sertifikalar\u0131n d\u00fczenli olarak yenilenmesi, zay\u0131f \u015fifreleme algoritmalar\u0131ndan ka\u00e7\u0131n\u0131lmas\u0131 ve en son g\u00fcvenlik yamalar\u0131n\u0131n uygulanmas\u0131, g\u00fcvenli bir web deneyimi sa\u011flamak i\u00e7in hayati \u00f6neme sahiptir. Bu ad\u0131mlar\u0131n her biri, web sitenizin ve kullan\u0131c\u0131lar\u0131n\u0131z\u0131n g\u00fcvenli\u011fini korumak i\u00e7in kritik rol oynar.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Yapilandirmasinin_Onemi_ve_Amaclari\"><\/span>TLS\/SSL Yap\u0131land\u0131rmas\u0131n\u0131n \u00d6nemi ve Ama\u00e7lar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, g\u00fcn\u00fcm\u00fcz dijital d\u00fcnyas\u0131nda internet \u00fczerindeki veri ileti\u015fiminin g\u00fcvenli\u011fini sa\u011flaman\u0131n temel ta\u015flar\u0131ndan biridir. Bu yap\u0131land\u0131rma, sunucu ve istemci aras\u0131ndaki ileti\u015fimi \u015fifreleyerek hassas bilgilerin (kullan\u0131c\u0131 adlar\u0131, parolalar, kredi kart\u0131 bilgileri vb.) \u00fc\u00e7\u00fcnc\u00fc \u015fah\u0131slar\u0131n eline ge\u00e7mesini engeller. Dolay\u0131s\u0131yla, hem kullan\u0131c\u0131lar\u0131n gizlili\u011fini korur hem de i\u015fletmelerin itibar\u0131n\u0131 g\u00fcvence alt\u0131na al\u0131r.<\/p>\n<p>Bir web sitesi veya uygulama i\u00e7in do\u011fru bir <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, sadece g\u00fcvenlik a\u00e7\u0131s\u0131ndan de\u011fil, ayn\u0131 zamanda SEO (Arama Motoru Optimizasyonu) a\u00e7\u0131s\u0131ndan da b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. Arama motorlar\u0131, g\u00fcvenli ba\u011flant\u0131lar\u0131 (HTTPS) olan web sitelerine \u00f6ncelik verir, bu da web sitenizin arama sonu\u00e7lar\u0131nda daha \u00fcst s\u0131ralarda yer almas\u0131na yard\u0131mc\u0131 olur. Ayr\u0131ca, kullan\u0131c\u0131lar g\u00fcvenli bir ba\u011flant\u0131 \u00fczerinden i\u015flem yapt\u0131klar\u0131n\u0131 g\u00f6rd\u00fcklerinde, web sitenize olan g\u00fcvenleri artar ve bu da d\u00f6n\u00fc\u015f\u00fcm oranlar\u0131n\u0131z\u0131 olumlu y\u00f6nde etkiler.<\/p>\n<ul> <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131n\u0131n Faydalar\u0131<\/strong> <\/p>\n<li>Veri gizlili\u011fini ve b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc korur.<\/li>\n<li>Kullan\u0131c\u0131lar\u0131n g\u00fcvenini art\u0131r\u0131r.<\/li>\n<li>SEO s\u0131ralamalar\u0131n\u0131 iyile\u015ftirir.<\/li>\n<li>Yasal d\u00fczenlemelere uyumu kolayla\u015ft\u0131r\u0131r (GDPR, KVKK vb.).<\/li>\n<li>Kimlik av\u0131 (phishing) sald\u0131r\u0131lar\u0131na kar\u015f\u0131 koruma sa\u011flar.<\/li>\n<li>Web sitesi performans\u0131n\u0131 optimize eder.<\/li>\n<\/ul>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>&#8216;n\u0131n temel ama\u00e7lar\u0131ndan biri, MITM (Man-in-the-Middle) olarak bilinen ortadaki adam sald\u0131r\u0131lar\u0131n\u0131 \u00f6nlemektir. Bu t\u00fcr sald\u0131r\u0131larda, k\u00f6t\u00fc niyetli ki\u015filer ileti\u015fim halindeki iki taraf\u0131n aras\u0131na girerek ileti\u015fimi dinleyebilir veya de\u011fi\u015ftirebilirler. G\u00fc\u00e7l\u00fc bir <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, bu t\u00fcr sald\u0131r\u0131lar\u0131 etkisiz hale getirerek veri g\u00fcvenli\u011fini en \u00fcst d\u00fczeye \u00e7\u0131kar\u0131r. Bu sayede, kullan\u0131c\u0131lar\u0131n\u0131z\u0131n ve i\u015fletmenizin kritik verileri g\u00fcvende kal\u0131r.<\/p>\n<table> TLS\/SSL Protokollerinin Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131 <\/p>\n<thead>\n<tr>\n<th>Protokol<\/th>\n<th>G\u00fcvenlik Seviyesi<\/th>\n<th>Performans<\/th>\n<th>Kullan\u0131m Alanlar\u0131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SSL 3.0<\/td>\n<td>D\u00fc\u015f\u00fck (G\u00fcvenlik a\u00e7\u0131klar\u0131 mevcut)<\/td>\n<td>Y\u00fcksek<\/td>\n<td>Art\u0131k kullan\u0131lmamal\u0131d\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.0<\/td>\n<td>Orta (Baz\u0131 g\u00fcvenlik a\u00e7\u0131klar\u0131 mevcut)<\/td>\n<td>Orta<\/td>\n<td>Kullan\u0131mdan kald\u0131r\u0131lmaya ba\u015fland\u0131.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.2<\/td>\n<td>Y\u00fcksek<\/td>\n<td>\u0130yi<\/td>\n<td>En yayg\u0131n kullan\u0131lan g\u00fcvenli protokol.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.3<\/td>\n<td>En Y\u00fcksek<\/td>\n<td>En \u0130yi<\/td>\n<td>Yeni nesil, daha h\u0131zl\u0131 ve g\u00fcvenli protokol.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ba\u015far\u0131l\u0131 bir <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, sadece teknik bir zorunluluk de\u011fil, ayn\u0131 zamanda kullan\u0131c\u0131 deneyimini iyile\u015ftiren ve marka de\u011ferini art\u0131ran stratejik bir yat\u0131r\u0131md\u0131r. G\u00fcvenli bir web sitesi, kullan\u0131c\u0131lar\u0131n bilin\u00e7alt\u0131nda olumlu bir alg\u0131 yarat\u0131r ve sadakati te\u015fvik eder. Bu nedenle, <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>&#8216;n\u0131 ciddiye almak ve s\u00fcrekli olarak g\u00fcncellemek, uzun vadeli ba\u015far\u0131 i\u00e7in kritik \u00f6neme sahiptir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Yapilandirmasinda_Adim_Adim_Surec\"><\/span>TLS\/SSL Yap\u0131land\u0131rmas\u0131nda Ad\u0131m Ad\u0131m S\u00fcre\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong>, web sitenizin ve sunucular\u0131n\u0131z\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kritik bir s\u00fcre\u00e7tir. Bu s\u00fcre\u00e7, do\u011fru ad\u0131mlar\u0131n izlenmesini ve yayg\u0131n hatalardan ka\u00e7\u0131n\u0131lmas\u0131n\u0131 gerektirir. Aksi takdirde, hassas verilerinizin g\u00fcvenli\u011fi tehlikeye girebilir ve kullan\u0131c\u0131lar\u0131n\u0131z\u0131n gizlili\u011fi ihlal edilebilir. Bu b\u00f6l\u00fcmde, TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131n ad\u0131m ad\u0131m nas\u0131l ger\u00e7ekle\u015ftirilece\u011fine odaklanaca\u011f\u0131z ve her ad\u0131m\u0131 detayl\u0131 bir \u015fekilde inceleyece\u011fiz.<\/p>\n<p>\u0130lk olarak, bir TLS\/SSL sertifikas\u0131 edinmeniz gerekmektedir. Bu sertifikalar, g\u00fcvenilir bir Sertifika Otoritesi (CA) taraf\u0131ndan sa\u011flan\u0131r. Sertifika se\u00e7imi, web sitenizin veya uygulaman\u0131z\u0131n ihtiya\u00e7lar\u0131na g\u00f6re de\u011fi\u015febilir. \u00d6rne\u011fin, tek bir alan ad\u0131 i\u00e7in temel bir sertifika yeterli olabilirken, birden fazla alt alan ad\u0131n\u0131 kapsayan bir sertifika (wildcard sertifika) daha uygun olabilir. Sertifika se\u00e7imi yaparken, CA&#8217;n\u0131n g\u00fcvenilirli\u011fi ve sertifika maliyeti gibi fakt\u00f6rleri g\u00f6z \u00f6n\u00fcnde bulundurman\u0131z \u00f6nemlidir.<\/p>\n<table border=1 cellpadding=5> <strong>Farkl\u0131 TLS\/SSL Sertifika T\u00fcrleri ve Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/strong> <\/p>\n<tr>\n<th>Sertifika T\u00fcr\u00fc<\/th>\n<th>Kapsam<\/th>\n<th>Do\u011frulama Seviyesi<\/th>\n<th>\u00d6zellikler<\/th>\n<\/tr>\n<tr>\n<td>Domain Validated (DV)<\/td>\n<td>Tek Alan Ad\u0131<\/td>\n<td>Temel<\/td>\n<td>H\u0131zl\u0131 ve Ekonomik<\/td>\n<\/tr>\n<tr>\n<td>Organization Validated (OV)<\/td>\n<td>Tek Alan Ad\u0131<\/td>\n<td>Orta<\/td>\n<td>\u015eirket Bilgileri Do\u011frulan\u0131r<\/td>\n<\/tr>\n<tr>\n<td>Extended Validation (EV)<\/td>\n<td>Tek Alan Ad\u0131<\/td>\n<td>Y\u00fcksek<\/td>\n<td>Adres \u00c7ubu\u011funda \u015eirket Ad\u0131 G\u00f6r\u00fcnt\u00fclenir<\/td>\n<\/tr>\n<tr>\n<td>Wildcard Sertifika<\/td>\n<td>Alan Ad\u0131 ve T\u00fcm Alt Alan Adlar\u0131<\/td>\n<td>De\u011fi\u015fken<\/td>\n<td>Esnek ve Kullan\u0131\u015fl\u0131<\/td>\n<\/tr>\n<\/table>\n<p>Sertifikan\u0131z\u0131 ald\u0131ktan sonra, sunucunuzda TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131 ger\u00e7ekle\u015ftirmeniz gerekmektedir. Bu, sunucu yaz\u0131l\u0131m\u0131n\u0131za (\u00f6rne\u011fin, Apache, Nginx) ba\u011fl\u0131 olarak farkl\u0131l\u0131k g\u00f6sterebilir. Genellikle, sertifika dosyas\u0131n\u0131 ve \u00f6zel anahtar dosyas\u0131n\u0131 sunucunuzun yap\u0131land\u0131rma dizinine yerle\u015ftirmeniz ve sunucu yap\u0131land\u0131rma dosyas\u0131nda TLS\/SSL&#8217;i etkinle\u015ftirmeniz gerekmektedir. Sunucu yap\u0131land\u0131rmas\u0131nda, hangi TLS protokollerinin ve \u015fifreleme algoritmalar\u0131n\u0131n kullan\u0131laca\u011f\u0131n\u0131 da belirleyebilirsiniz. G\u00fcvenlik a\u00e7\u0131s\u0131ndan, g\u00fcncel ve g\u00fcvenli protokolleri ve algoritmalar\u0131 kullanman\u0131z \u00f6nerilir.<\/p>\n<ol> <strong>TLS\/SSL Yap\u0131land\u0131rma Ad\u0131mlar\u0131<\/strong> <\/p>\n<li>Bir Sertifika Otoritesinden (CA) TLS\/SSL sertifikas\u0131 edinin.<\/li>\n<li>Sertifika \u0130mzalama \u0130ste\u011fi (CSR) olu\u015fturun.<\/li>\n<li>Sertifika dosyas\u0131n\u0131 ve \u00f6zel anahtar dosyas\u0131n\u0131 sunucunuza y\u00fckleyin.<\/li>\n<li>Sunucu yap\u0131land\u0131rma dosyas\u0131nda TLS\/SSL&#8217;i etkinle\u015ftirin (\u00f6rne\u011fin, Apache&#8217;de <code>VirtualHost<\/code> yap\u0131land\u0131rmas\u0131).<\/li>\n<li>G\u00fcvenli TLS protokollerini (TLS 1.2 veya \u00fczeri) ve g\u00fc\u00e7l\u00fc \u015fifreleme algoritmalar\u0131n\u0131 yap\u0131land\u0131r\u0131n.<\/li>\n<li>Sunucunuzu yeniden ba\u015flat\u0131n veya yap\u0131land\u0131rmay\u0131 yeniden y\u00fckleyin.<\/li>\n<li>TLS\/SSL yap\u0131land\u0131rman\u0131z\u0131 test etmek i\u00e7in \u00e7evrimi\u00e7i ara\u00e7lar kullan\u0131n (\u00f6rne\u011fin, SSL Labs).<\/li>\n<\/ol>\n<p>TLS\/SSL yap\u0131land\u0131rman\u0131z\u0131 d\u00fczenli olarak test etmeniz ve g\u00fcncellemeniz \u00f6nemlidir. SSL Labs gibi \u00e7evrimi\u00e7i ara\u00e7lar, yap\u0131land\u0131rman\u0131zdaki g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 tespit etmenize ve iyile\u015ftirme yapman\u0131za yard\u0131mc\u0131 olabilir. Ayr\u0131ca, sertifikalar\u0131n\u0131z\u0131n s\u00fcresinin dolmas\u0131na izin vermemelisiniz, aksi takdirde kullan\u0131c\u0131lar\u0131n\u0131z g\u00fcvenlik uyar\u0131lar\u0131yla kar\u015f\u0131la\u015fabilir. Sertifika y\u00f6netimi ve g\u00fcncellemeleri, g\u00fcvenli bir web sitesi veya uygulama s\u00fcrd\u00fcrmek i\u00e7in s\u00fcrekli bir s\u00fcre\u00e7 olmal\u0131d\u0131r.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Yaygin_TLSSSL_Yapilandirma_Hatalari\"><\/span>Yayg\u0131n TLS\/SSL Yap\u0131land\u0131rma Hatalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, web sitelerinin ve uygulamalar\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kritik bir \u00f6neme sahiptir. Ancak, bu yap\u0131land\u0131rma s\u00fcrecinde yap\u0131lan hatalar, g\u00fcvenlik a\u00e7\u0131klar\u0131na ve veri ihlallerine yol a\u00e7abilir. Bu b\u00f6l\u00fcmde, en s\u0131k kar\u015f\u0131la\u015f\u0131lan TLS\/SSL yap\u0131land\u0131rma hatalar\u0131n\u0131 ve bu hatalar\u0131n potansiyel sonu\u00e7lar\u0131n\u0131 inceleyece\u011fiz.<\/p>\n<p>Yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f bir TLS\/SSL sertifikas\u0131, kullan\u0131c\u0131lar\u0131n hassas bilgilerini tehlikeye atabilir. \u00d6rne\u011fin, s\u00fcresi dolmu\u015f bir sertifika, taray\u0131c\u0131lar taraf\u0131ndan g\u00fcvenilir olarak kabul edilmez ve kullan\u0131c\u0131lar i\u00e7in g\u00fcvenlik uyar\u0131lar\u0131na neden olur. Bu durum, web sitesinin itibar\u0131n\u0131 zedeler ve kullan\u0131c\u0131lar\u0131n siteye olan g\u00fcvenini azalt\u0131r. Ayr\u0131ca, zay\u0131f \u015fifreleme algoritmalar\u0131n\u0131n kullan\u0131lmas\u0131 veya hatal\u0131 protokol se\u00e7imleri de g\u00fcvenlik risklerini art\u0131r\u0131r.<\/p>\n<table>\n<tr>\n<th>Hata T\u00fcr\u00fc<\/th>\n<th>A\u00e7\u0131klama<\/th>\n<th>Olas\u0131 Sonu\u00e7lar<\/th>\n<\/tr>\n<tr>\n<td>S\u00fcresi Dolmu\u015f Sertifikalar<\/td>\n<td>TLS\/SSL sertifikas\u0131n\u0131n ge\u00e7erlilik s\u00fcresinin sona ermesi.<\/td>\n<td>G\u00fcvenlik uyar\u0131lar\u0131, kullan\u0131c\u0131 kayb\u0131, itibar kayb\u0131.<\/td>\n<\/tr>\n<tr>\n<td>Zay\u0131f \u015eifreleme Algoritmalar\u0131<\/td>\n<td>G\u00fcvenli\u011fi yetersiz \u015fifreleme algoritmalar\u0131n\u0131n kullan\u0131lmas\u0131.<\/td>\n<td>Veri ihlali, sald\u0131r\u0131lara kar\u015f\u0131 savunmas\u0131zl\u0131k.<\/td>\n<\/tr>\n<tr>\n<td>Hatal\u0131 Protokol Se\u00e7imleri<\/td>\n<td>Eski ve g\u00fcvensiz protokollerin (SSLv3 gibi) kullan\u0131lmas\u0131.<\/td>\n<td>Man-in-the-middle sald\u0131r\u0131lar\u0131, veri ele ge\u00e7irme.<\/td>\n<\/tr>\n<tr>\n<td>Yanl\u0131\u015f Sertifika Zinciri<\/td>\n<td>Sertifika zincirinin do\u011fru \u015fekilde yap\u0131land\u0131r\u0131lmamas\u0131.<\/td>\n<td>Taray\u0131c\u0131 uyar\u0131lar\u0131, g\u00fcven sorunlar\u0131.<\/td>\n<\/tr>\n<\/table>\n<p>Bu hatalar\u0131n \u00f6n\u00fcne ge\u00e7mek i\u00e7in d\u00fczenli olarak sertifika ge\u00e7erlilik tarihlerini kontrol etmek, g\u00fc\u00e7l\u00fc \u015fifreleme algoritmalar\u0131 kullanmak ve g\u00fcncel protokolleri tercih etmek \u00f6nemlidir. Ayr\u0131ca, sertifika zincirinin do\u011fru bir \u015fekilde yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131ndan emin olunmal\u0131d\u0131r. <strong>Do\u011fru yap\u0131land\u0131rma<\/strong>, web sitenizin ve uygulamalar\u0131n\u0131z\u0131n g\u00fcvenli\u011fini sa\u011flaman\u0131n temelidir.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"TLSSSL_Yapilandirma_Hatasi_Ornekleri\"><\/span>TLS\/SSL Yap\u0131land\u0131rma Hatas\u0131 \u00d6rnekleri<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Bir\u00e7ok farkl\u0131 <strong>TLS\/SSL yap\u0131land\u0131rma hatas\u0131<\/strong> bulunmaktad\u0131r. Bunlardan baz\u0131lar\u0131 sunucu taraf\u0131nda yap\u0131l\u0131rken, baz\u0131lar\u0131 ise istemci taraf\u0131nda meydana gelebilir. \u00d6rne\u011fin, bir web sunucusunun TLS\/SSL ayarlar\u0131nda yap\u0131lan bir hata, t\u00fcm siteyi etkileyebilirken, bir taray\u0131c\u0131da yap\u0131lan yanl\u0131\u015f bir ayar sadece o kullan\u0131c\u0131y\u0131 etkileyebilir.<\/p>\n<ul> <strong>Hatalar\u0131n Nedenleri ve \u00c7\u00f6z\u00fcmleri<\/strong> <\/p>\n<li><strong>Sertifika S\u00fcresinin Takip Edilmemesi:<\/strong> Sertifikalar\u0131n d\u00fczenli olarak yenilenmemesi. \u00c7\u00f6z\u00fcm: Otomatik sertifika yenileme sistemleri kullanmak.<\/li>\n<li><strong>Zay\u0131f \u015eifreleme Kullan\u0131m\u0131:<\/strong> MD5 veya SHA1 gibi eski ve zay\u0131f algoritmalar\u0131n kullan\u0131lmas\u0131. \u00c7\u00f6z\u00fcm: SHA256 veya daha g\u00fc\u00e7l\u00fc algoritmalar\u0131 tercih etmek.<\/li>\n<li><strong>HSTS&#8217;nin Yanl\u0131\u015f Yap\u0131land\u0131r\u0131lmas\u0131:<\/strong> HSTS (HTTP Strict Transport Security) ba\u015fl\u0131\u011f\u0131n\u0131n yanl\u0131\u015f ayarlanmas\u0131. \u00c7\u00f6z\u00fcm: Do\u011fru parametrelerle HSTS&#8217;yi yap\u0131land\u0131rmak ve \u00f6n y\u00fckleme listesine eklemek.<\/li>\n<li><strong>OCSP Stapling&#8217;in Etkin Olmamas\u0131:<\/strong> OCSP (Online Certificate Status Protocol) stapling&#8217;in etkin olmamas\u0131, sertifika ge\u00e7erlilik kontrollerinde gecikmelere neden olabilir. \u00c7\u00f6z\u00fcm: OCSP stapling&#8217;i etkinle\u015ftirerek performans\u0131 art\u0131rmak.<\/li>\n<li><strong>G\u00fcvenlik A\u00e7\u0131klar\u0131na Kar\u015f\u0131 Yama Uygulanmamas\u0131:<\/strong> Sunucu yaz\u0131l\u0131mlar\u0131ndaki g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n g\u00fcncel yamalarla kapat\u0131lmamas\u0131. \u00c7\u00f6z\u00fcm: D\u00fczenli olarak g\u00fcvenlik g\u00fcncellemelerini yapmak.<\/li>\n<li><strong>HTTP ve HTTPS&#8217;nin Kar\u0131\u015f\u0131k Kullan\u0131m\u0131:<\/strong> Baz\u0131 kaynaklar\u0131n HTTP \u00fczerinden sunulmas\u0131, g\u00fcvenli\u011fi zay\u0131flat\u0131r. \u00c7\u00f6z\u00fcm: T\u00fcm kaynaklar\u0131 HTTPS \u00fczerinden sunmak ve HTTP y\u00f6nlendirmelerini do\u011fru yap\u0131land\u0131rmak.<\/li>\n<\/ul>\n<p>Bu hatalara ek olarak, yetersiz anahtar y\u00f6netimi, g\u00fcncel olmayan protokoller ve zay\u0131f \u015fifreleme paketleri de yayg\u0131n kar\u015f\u0131la\u015f\u0131lan sorunlard\u0131r. <strong>Anahtar y\u00f6netimi<\/strong>, sertifikalar\u0131n g\u00fcvenli bir \u015fekilde saklanmas\u0131 ve eri\u015filebilirli\u011finin kontrol alt\u0131nda tutulmas\u0131 anlam\u0131na gelir.<\/p>\n<blockquote><p>TLS\/SSL yap\u0131land\u0131rmas\u0131nda yap\u0131lan hatalar, sadece g\u00fcvenlik a\u00e7\u0131klar\u0131na de\u011fil, ayn\u0131 zamanda performans sorunlar\u0131na da yol a\u00e7abilir. Bu nedenle, yap\u0131land\u0131rma s\u00fcrecinde dikkatli olmak ve d\u00fczenli olarak g\u00fcvenlik testleri yapmak b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r.<\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Protokolunun_Calisma_Prensibi\"><\/span>TLS\/SSL Protokol\u00fcn\u00fcn \u00c7al\u0131\u015fma Prensibi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, internet \u00fczerindeki veri ileti\u015fiminin g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kritik bir rol oynar. Bu protokol, istemci (\u00f6rne\u011fin bir web taray\u0131c\u0131s\u0131) ve sunucu aras\u0131ndaki ileti\u015fimi \u015fifreleyerek, \u00fc\u00e7\u00fcnc\u00fc \u015fah\u0131slar\u0131n bu verilere eri\u015fmesini engeller. Temelde, TLS\/SSL protokol\u00fc, verilerin gizlili\u011fini, b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc ve kimlik do\u011frulamas\u0131n\u0131 garanti eder.<\/p>\n<p>TLS\/SSL protokol\u00fcn\u00fcn temel amac\u0131, g\u00fcvenli bir ileti\u015fim kanal\u0131 olu\u015fturmakt\u0131r. Bu s\u00fcre\u00e7, bir dizi karma\u015f\u0131k ad\u0131mdan olu\u015fur ve her ad\u0131m, ileti\u015fimin g\u00fcvenli\u011fini art\u0131rmaya y\u00f6neliktir. Protokol, simetrik ve asimetrik \u015fifreleme y\u00f6ntemlerini bir arada kullanarak, hem h\u0131zl\u0131 hem de g\u00fcvenli bir ileti\u015fim sa\u011flar.<\/p>\n<table> TLS\/SSL Protokol\u00fcnde Kullan\u0131lan Temel Algoritmalar <\/p>\n<thead>\n<tr>\n<th>Algoritma T\u00fcr\u00fc<\/th>\n<th>Algoritma Ad\u0131<\/th>\n<th>A\u00e7\u0131klama<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Simetrik \u015eifreleme<\/td>\n<td>AES (Advanced Encryption Standard)<\/td>\n<td>Veriyi \u015fifrelemek ve \u00e7\u00f6zmek i\u00e7in ayn\u0131 anahtar\u0131 kullan\u0131r. H\u0131zl\u0131 ve etkilidir.<\/td>\n<\/tr>\n<tr>\n<td>Asimetrik \u015eifreleme<\/td>\n<td>RSA (Rivest-Shamir-Adleman)<\/td>\n<td>\u015eifreleme ve \u00e7\u00f6zme i\u015flemleri i\u00e7in farkl\u0131 anahtarlar (genel ve \u00f6zel) kullan\u0131r. Anahtar de\u011fi\u015fiminde g\u00fcvenli\u011fi sa\u011flar.<\/td>\n<\/tr>\n<tr>\n<td>Hash Fonksiyonlar\u0131<\/td>\n<td>SHA-256 (Secure Hash Algorithm 256-bit)<\/td>\n<td>Verinin b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc do\u011frulamak i\u00e7in kullan\u0131l\u0131r. Verideki herhangi bir de\u011fi\u015fiklik hash de\u011ferini de\u011fi\u015ftirir.<\/td>\n<\/tr>\n<tr>\n<td>Anahtar De\u011fi\u015fim Algoritmalar\u0131<\/td>\n<td>Diffie-Hellman<\/td>\n<td>G\u00fcvenli bir \u015fekilde anahtar de\u011fi\u015fimi yap\u0131lmas\u0131n\u0131 sa\u011flar.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>G\u00fcvenli bir ba\u011flant\u0131 kuruldu\u011funda, istemci ve sunucu aras\u0131ndaki t\u00fcm veriler \u015fifrelenir. Bu, kredi kart\u0131 bilgileri, kullan\u0131c\u0131 adlar\u0131, parolalar ve di\u011fer hassas verilerin g\u00fcvenli bir \u015fekilde iletilmesini sa\u011flar. <strong>Do\u011fru yap\u0131land\u0131r\u0131lm\u0131\u015f bir TLS\/SSL protokol\u00fc<\/strong>, web sitenizin ve uygulaman\u0131z\u0131n g\u00fcvenilirli\u011fini art\u0131r\u0131r ve kullan\u0131c\u0131lar\u0131n\u0131z\u0131n verilerini korur.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"TLSSSL_Protokolu_Asamalari\"><\/span>TLS\/SSL Protokol\u00fc A\u015famalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>TLS\/SSL protokol\u00fc, \u00e7e\u015fitli a\u015famalardan olu\u015fur. Bu a\u015famalar, istemci ve sunucu aras\u0131nda g\u00fcvenli bir ba\u011flant\u0131 kurulmas\u0131n\u0131 sa\u011flar. Her a\u015fama, belirli g\u00fcvenlik mekanizmalar\u0131n\u0131 i\u00e7erir ve ileti\u015fimin g\u00fcvenli\u011fini art\u0131rmak i\u00e7in tasarlanm\u0131\u015ft\u0131r.<\/p>\n<ul> <strong>TLS\/SSL Protokol\u00fc ile \u0130lgili Anahtar Terimler<\/strong> <\/p>\n<li><strong>El s\u0131k\u0131\u015fma (Handshake):<\/strong> \u0130stemci ve sunucu aras\u0131nda g\u00fcvenli bir ba\u011flant\u0131 kurma s\u00fcreci.<\/li>\n<li><strong>Sertifika:<\/strong> Sunucunun kimli\u011fini do\u011frulayan dijital belge.<\/li>\n<li><strong>\u015eifreleme (Encryption):<\/strong> Veriyi okunamaz hale getirme i\u015flemi.<\/li>\n<li><strong>\u00c7\u00f6zme (Decryption):<\/strong> \u015eifrelenmi\u015f veriyi okunabilir hale getirme i\u015flemi.<\/li>\n<li><strong>Simetrik Anahtar:<\/strong> \u015eifreleme ve \u00e7\u00f6zme i\u00e7in ayn\u0131 anahtar\u0131n kullan\u0131ld\u0131\u011f\u0131 y\u00f6ntem.<\/li>\n<li><strong>Asimetrik Anahtar:<\/strong> \u015eifreleme ve \u00e7\u00f6zme i\u00e7in farkl\u0131 anahtarlar\u0131n kullan\u0131ld\u0131\u011f\u0131 y\u00f6ntem.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"TLSSSL_Protokolunde_Kullanilan_Sifreleme_Turleri\"><\/span>TLS\/SSL Protokol\u00fcnde Kullan\u0131lan \u015eifreleme T\u00fcrleri<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>TLS\/SSL protokol\u00fcnde kullan\u0131lan \u015fifreleme t\u00fcrleri, ileti\u015fimin g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kritik \u00f6neme sahiptir. Simetrik ve asimetrik \u015fifreleme algoritmalar\u0131n\u0131n kombinasyonu, hem g\u00fcvenlik hem de performans a\u00e7\u0131s\u0131ndan en iyi sonu\u00e7lar\u0131 verir.<\/p>\n<p>Asimetrik \u015fifreleme, genellikle <strong>anahtar de\u011fi\u015fimini g\u00fcvenli bir \u015fekilde yapmak<\/strong> i\u00e7in kullan\u0131l\u0131rken, simetrik \u015fifreleme ise b\u00fcy\u00fck miktardaki veriyi h\u0131zl\u0131 bir \u015fekilde \u015fifrelemek i\u00e7in kullan\u0131l\u0131r. Bu iki y\u00f6ntemin bir arada kullan\u0131lmas\u0131, TLS\/SSL protokol\u00fcn\u00fcn g\u00fc\u00e7l\u00fc bir g\u00fcvenlik sa\u011flamas\u0131na olanak tan\u0131r.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Sertifikalarinin_Turleri_ve_Ozellikleri\"><\/span>TLS\/SSL Sertifikalar\u0131n\u0131n T\u00fcrleri ve \u00d6zellikleri<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde, do\u011fru sertifika t\u00fcr\u00fcn\u00fc se\u00e7mek, web sitenizin g\u00fcvenli\u011fi ve performans\u0131 a\u00e7\u0131s\u0131ndan kritik bir \u00f6neme sahiptir. Piyasada farkl\u0131 ihtiya\u00e7lara ve g\u00fcvenlik seviyelerine uygun \u00e7e\u015fitli TLS\/SSL sertifikalar\u0131 bulunmaktad\u0131r. Bu sertifikalar\u0131n her birinin kendine \u00f6zg\u00fc avantajlar\u0131 ve dezavantajlar\u0131 vard\u0131r ve do\u011fru se\u00e7imi yapmak, hem kullan\u0131c\u0131lar\u0131n g\u00fcvenini sa\u011flamak hem de veri g\u00fcvenli\u011fini en \u00fcst d\u00fczeye \u00e7\u0131karmak i\u00e7in elzemdir.<\/p>\n<p>Sertifika se\u00e7imi yaparken dikkat edilmesi gereken en \u00f6nemli fakt\u00f6rlerden biri, sertifikan\u0131n do\u011frulama seviyesidir. Do\u011frulama seviyesi, sertifika sa\u011flay\u0131c\u0131s\u0131n\u0131n, sertifikay\u0131 talep eden kurulu\u015fun kimli\u011fini ne kadar titizlikle do\u011frulad\u0131\u011f\u0131na i\u015faret eder. Daha y\u00fcksek do\u011frulama seviyeleri, daha fazla g\u00fcvenilirlik sa\u011flar ve genellikle kullan\u0131c\u0131lar taraf\u0131ndan daha \u00e7ok tercih edilir. Bu durum, \u00f6zellikle e-ticaret siteleri ve finans kurulu\u015flar\u0131 gibi hassas verileri i\u015fleyen web siteleri i\u00e7in b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r.<\/p>\n<p> <strong>Sertifika T\u00fcrleri: Avantajlar ve Dezavantajlar<\/strong> <\/p>\n<ul>\n<li><strong>Alan Ad\u0131 Do\u011frulamal\u0131 (DV) Sertifikalar\u0131:<\/strong> En temel ve en h\u0131zl\u0131 al\u0131nan sertifika t\u00fcr\u00fcd\u00fcr. Sadece alan ad\u0131n\u0131n sahipli\u011fi do\u011frulan\u0131r. D\u00fc\u015f\u00fck maliyetli olmalar\u0131 nedeniyle k\u00fc\u00e7\u00fck \u00f6l\u00e7ekli web siteleri veya bloglar i\u00e7in uygundur. Ancak, en d\u00fc\u015f\u00fck g\u00fcvenlik seviyesini sunarlar.<\/li>\n<li><strong>Kurulu\u015f Do\u011frulamal\u0131 (OV) Sertifikalar\u0131:<\/strong> Kurulu\u015fun kimli\u011fi do\u011frulan\u0131r. Bu, DV sertifikalar\u0131na g\u00f6re daha fazla g\u00fcven sa\u011flar. Orta \u00f6l\u00e7ekli i\u015fletmeler i\u00e7in idealdir.<\/li>\n<li><strong>Geni\u015fletilmi\u015f Do\u011frulamal\u0131 (EV) Sertifikalar\u0131:<\/strong> En y\u00fcksek do\u011frulama seviyesine sahip sertifikalard\u0131r. Sertifika sa\u011flay\u0131c\u0131s\u0131, kurulu\u015fun kimli\u011fini detayl\u0131 bir \u015fekilde do\u011frular. Taray\u0131c\u0131 adres \u00e7ubu\u011funda ye\u015fil bir kilit ve kurulu\u015fun ad\u0131 g\u00f6r\u00fcnt\u00fclenir, bu da kullan\u0131c\u0131lara en \u00fcst d\u00fczeyde g\u00fcven verir. E-ticaret siteleri ve finans kurulu\u015flar\u0131 i\u00e7in \u00f6nerilir.<\/li>\n<li><strong>Wildcard Sertifikalar\u0131:<\/strong> Tek bir sertifika ile bir alan ad\u0131n\u0131n t\u00fcm alt alan adlar\u0131n\u0131 (\u00f6rne\u011fin, *.example.com) g\u00fcvence alt\u0131na al\u0131r. Y\u00f6netim kolayl\u0131\u011f\u0131 sa\u011flar ve maliyet etkin bir \u00e7\u00f6z\u00fcmd\u00fcr.<\/li>\n<li><strong>\u00c7oklu Alan Ad\u0131 (SAN) Sertifikalar\u0131:<\/strong> Tek bir sertifika ile birden fazla farkl\u0131 alan ad\u0131n\u0131 g\u00fcvence alt\u0131na al\u0131r. Farkl\u0131 projeleri veya markalar\u0131 olan i\u015fletmeler i\u00e7in kullan\u0131\u015fl\u0131d\u0131r.<\/li>\n<\/ul>\n<p>A\u015fa\u011f\u0131daki tabloda, farkl\u0131 TLS\/SSL sertifika t\u00fcrlerinin temel \u00f6zellikleri ve kullan\u0131m alanlar\u0131 kar\u015f\u0131la\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r. Bu kar\u015f\u0131la\u015ft\u0131rma, <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde do\u011fru sertifika se\u00e7imini yapman\u0131za yard\u0131mc\u0131 olacakt\u0131r. Sertifika se\u00e7imi yaparken, web sitenizin ihtiya\u00e7lar\u0131n\u0131, b\u00fct\u00e7enizi ve g\u00fcvenlik gereksinimlerinizi dikkate alman\u0131z \u00f6nemlidir.<\/p>\n<table>\n<thead>\n<tr>\n<th>Sertifika T\u00fcr\u00fc<\/th>\n<th>Do\u011frulama Seviyesi<\/th>\n<th>Kullan\u0131m Alanlar\u0131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Alan Ad\u0131 Do\u011frulamal\u0131 (DV)<\/td>\n<td>Temel<\/td>\n<td>Bloglar, ki\u015fisel web siteleri, k\u00fc\u00e7\u00fck \u00f6l\u00e7ekli projeler<\/td>\n<\/tr>\n<tr>\n<td>Kurulu\u015f Do\u011frulamal\u0131 (OV)<\/td>\n<td>Orta<\/td>\n<td>Orta \u00f6l\u00e7ekli i\u015fletmeler, kurumsal web siteleri<\/td>\n<\/tr>\n<tr>\n<td>Geni\u015fletilmi\u015f Do\u011frulamal\u0131 (EV)<\/td>\n<td>Y\u00fcksek<\/td>\n<td>E-ticaret siteleri, finans kurulu\u015flar\u0131, y\u00fcksek g\u00fcvenlik gerektiren uygulamalar<\/td>\n<\/tr>\n<tr>\n<td>Wildcard<\/td>\n<td>De\u011fi\u015fken (DV, OV veya EV olabilir)<\/td>\n<td>Alt alan adlar\u0131n\u0131 kullanan web siteleri<\/td>\n<\/tr>\n<tr>\n<td>\u00c7oklu Alan Ad\u0131 (SAN)<\/td>\n<td>De\u011fi\u015fken (DV, OV veya EV olabilir)<\/td>\n<td>Birden fazla alan ad\u0131n\u0131 kullanan web siteleri<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde do\u011fru sertifika t\u00fcr\u00fcn\u00fc se\u00e7mek, web sitenizin g\u00fcvenli\u011fini ve itibar\u0131n\u0131 do\u011frudan etkiler. Her sertifika t\u00fcr\u00fcn\u00fcn farkl\u0131 avantajlar\u0131 ve dezavantajlar\u0131 oldu\u011funu unutmamak ve ihtiya\u00e7lar\u0131n\u0131za en uygun olan\u0131 se\u00e7mek \u00f6nemlidir. Ayr\u0131ca, sertifikan\u0131z\u0131n d\u00fczenli olarak g\u00fcncellenmesi ve do\u011fru bir \u015fekilde yap\u0131land\u0131r\u0131lmas\u0131 da kritik \u00f6neme sahiptir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Yapilandirmasinda_Guvenlik_ve_Performans\"><\/span>TLS\/SSL Yap\u0131land\u0131rmas\u0131nda G\u00fcvenlik ve Performans<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, web sitelerinin ve uygulamalar\u0131n g\u00fcvenli\u011fini sa\u011flarken ayn\u0131 zamanda performanslar\u0131n\u0131 da do\u011frudan etkileyen kritik bir denge noktas\u0131d\u0131r. G\u00fcvenlik \u00f6nlemlerinin art\u0131r\u0131lmas\u0131, bazen performans\u0131 olumsuz etkileyebilirken, performans\u0131 optimize etmek i\u00e7in yap\u0131lan baz\u0131 ayarlamalar da g\u00fcvenlik a\u00e7\u0131klar\u0131na yol a\u00e7abilir. Bu nedenle, do\u011fru bir yap\u0131land\u0131rma, her iki unsurun da g\u00f6zetilerek yap\u0131lmas\u0131yla m\u00fcmk\u00fcnd\u00fcr.<\/p>\n<table>\n<thead>\n<tr>\n<th>Yap\u0131land\u0131rma Se\u00e7ene\u011fi<\/th>\n<th>G\u00fcvenlik Etkisi<\/th>\n<th>Performans Etkisi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Protokol Se\u00e7imi (TLS 1.3 vs. TLS 1.2)<\/td>\n<td>TLS 1.3 daha g\u00fcvenli \u015fifreleme algoritmalar\u0131 sunar.<\/td>\n<td>TLS 1.3, azalt\u0131lm\u0131\u015f el s\u0131k\u0131\u015fma s\u00fcresiyle daha h\u0131zl\u0131d\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>\u015eifreleme Algoritmalar\u0131 (Cipher Suites)<\/td>\n<td>G\u00fc\u00e7l\u00fc \u015fifreleme algoritmalar\u0131 g\u00fcvenli\u011fi art\u0131r\u0131r.<\/td>\n<td>Daha karma\u015f\u0131k algoritmalar daha fazla i\u015flem g\u00fcc\u00fc gerektirir.<\/td>\n<\/tr>\n<tr>\n<td>OCSP Stapling<\/td>\n<td>Sertifika ge\u00e7erlili\u011fini ger\u00e7ek zamanl\u0131 olarak kontrol eder.<\/td>\n<td>Ek y\u00fck getirerek sunucu performans\u0131n\u0131 etkileyebilir.<\/td>\n<\/tr>\n<tr>\n<td>HTTP\/2 ve HTTP\/3<\/td>\n<td>G\u00fcvenli\u011fi art\u0131rmak i\u00e7in TLS gerektirir.<\/td>\n<td>Paralel istekler ve ba\u015fl\u0131k s\u0131k\u0131\u015ft\u0131rmas\u0131 ile performans\u0131 art\u0131r\u0131r.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>G\u00fcvenli\u011fi art\u0131rmak ad\u0131na al\u0131nabilecek \u00f6nlemler aras\u0131nda, g\u00fcncel ve g\u00fc\u00e7l\u00fc \u015fifreleme algoritmalar\u0131n\u0131n kullan\u0131lmas\u0131, g\u00fcvenli protokol s\u00fcr\u00fcmlerine (\u00f6rne\u011fin TLS 1.3) ge\u00e7ilmesi ve d\u00fczenli g\u00fcvenlik a\u00e7\u0131\u011f\u0131 taramalar\u0131n\u0131n yap\u0131lmas\u0131 yer al\u0131r. Ancak bu \u00f6nlemlerin, sunucu kaynaklar\u0131n\u0131 daha fazla t\u00fcketebilece\u011fi ve dolay\u0131s\u0131yla sayfa y\u00fckleme s\u00fcrelerini uzatabilece\u011fi unutulmamal\u0131d\u0131r.<\/p>\n<ul> <strong>G\u00fcvenlik A\u00e7\u0131klar\u0131 ve \u00d6nlemler<\/strong> <\/p>\n<li>Zay\u0131f \u015eifreleme Algoritmalar\u0131: G\u00fc\u00e7l\u00fc ve g\u00fcncel algoritmalarla de\u011fi\u015ftirilmelidir.<\/li>\n<li>G\u00fcncel Olmayan Protokol S\u00fcr\u00fcmleri: TLS 1.3 gibi en son s\u00fcr\u00fcmlere ge\u00e7ilmelidir.<\/li>\n<li>OCSP Stapling Eksikli\u011fi: Sertifika ge\u00e7erlili\u011fi i\u00e7in OCSP stapling etkinle\u015ftirilmelidir.<\/li>\n<li>Yanl\u0131\u015f Sertifika Yap\u0131land\u0131rmas\u0131: Sertifikalar\u0131n do\u011fru \u015fekilde yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131ndan emin olunmal\u0131d\u0131r.<\/li>\n<li>HTTP Strict Transport Security (HSTS) Eksikli\u011fi: HSTS etkinle\u015ftirilerek taray\u0131c\u0131lar\u0131n sadece g\u00fcvenli ba\u011flant\u0131lar\u0131 kullanmas\u0131 sa\u011flanmal\u0131d\u0131r.<\/li>\n<\/ul>\n<p>Performans\u0131 optimize etmek i\u00e7in ise, HTTP\/2 veya HTTP\/3 gibi modern protokollerin kullan\u0131lmas\u0131, ba\u011flant\u0131lar\u0131n yeniden kullan\u0131m\u0131n\u0131n sa\u011flanmas\u0131 (keep-alive), s\u0131k\u0131\u015ft\u0131rma tekniklerinin (\u00f6rne\u011fin, Brotli veya Gzip) kullan\u0131lmas\u0131 ve gereksiz TLS \u00f6zelliklerinin devre d\u0131\u015f\u0131 b\u0131rak\u0131lmas\u0131 gibi y\u00f6ntemlere ba\u015fvurulabilir. <strong>Do\u011fru bir denge<\/strong>, g\u00fcvenlik ve performans aras\u0131nda s\u00fcrekli bir de\u011ferlendirme ve optimizasyon s\u00fcrecini gerektirir.<\/p>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong>, dinamik bir s\u00fcre\u00e7 olup, hem g\u00fcvenlik tehditlerindeki de\u011fi\u015fikliklere hem de performans gereksinimlerindeki art\u0131\u015flara uyum sa\u011flamal\u0131d\u0131r. Bu nedenle, d\u00fczenli olarak yap\u0131land\u0131rman\u0131n g\u00f6zden ge\u00e7irilmesi, g\u00fcvenlik ve performans testlerinin yap\u0131lmas\u0131 ve en iyi uygulamalar\u0131n takip edilmesi b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Yapilandirmasi_Icin_Gereken_Araclar\"><\/span>TLS\/SSL Yap\u0131land\u0131rmas\u0131 \u0130\u00e7in Gereken Ara\u00e7lar<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong>, g\u00fcvenli bir web deneyimi sa\u011flamak i\u00e7in kritik \u00f6neme sahiptir ve bu s\u00fcre\u00e7te kullan\u0131lan ara\u00e7lar, yap\u0131land\u0131rman\u0131n ba\u015far\u0131s\u0131nda b\u00fcy\u00fck rol oynar. Do\u011fru ara\u00e7lar\u0131n se\u00e7imi ve etkin bir \u015fekilde kullan\u0131lmas\u0131, olas\u0131 g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 en aza indirir ve sistemlerin g\u00fcvenilirli\u011fini art\u0131r\u0131r. Bu b\u00f6l\u00fcmde, <strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde ihtiya\u00e7 duyulan temel ara\u00e7lara ve bu ara\u00e7lar\u0131n \u00f6zelliklerine de\u011finece\u011fiz.<\/p>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde kullan\u0131lan ara\u00e7lar, sertifika olu\u015fturma, sunucu yap\u0131land\u0131rmas\u0131, g\u00fcvenlik a\u00e7\u0131\u011f\u0131 taramas\u0131 ve trafik analizi gibi \u00e7e\u015fitli g\u00f6revleri yerine getirmeyi sa\u011flar. Bu ara\u00e7lar sayesinde, y\u00f6neticiler <strong>TLS\/SSL<\/strong> ayarlar\u0131n\u0131 kolayca yap\u0131land\u0131rabilir, olas\u0131 sorunlar\u0131 tespit edebilir ve sistemlerin g\u00fcvenli\u011fini s\u00fcrekli olarak izleyebilirler. Her bir arac\u0131n kendine \u00f6zg\u00fc avantajlar\u0131 ve kullan\u0131m alanlar\u0131 bulunmaktad\u0131r, bu nedenle do\u011fru arac\u0131 se\u00e7mek, projenin gereksinimlerine ve b\u00fct\u00e7esine uygun olmal\u0131d\u0131r.<\/p>\n<p> <strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131nda Kullan\u0131lan Ara\u00e7lar<\/strong> <\/p>\n<ul>\n<li><strong>OpenSSL:<\/strong> Sertifika olu\u015fturma, CSR (Certificate Signing Request) olu\u015fturma ve \u015fifreleme i\u015flemleri i\u00e7in kullan\u0131lan a\u00e7\u0131k kaynakl\u0131 bir ara\u00e7t\u0131r.<\/li>\n<li><strong>Certbot:<\/strong> Let&#8217;s Encrypt sertifikalar\u0131n\u0131 otomatik olarak al\u0131p yap\u0131land\u0131rmak i\u00e7in kullan\u0131lan bir ara\u00e7t\u0131r.<\/li>\n<li><strong>Nmap:<\/strong> A\u011f ke\u015ffi ve g\u00fcvenlik denetimi i\u00e7in kullan\u0131lan pop\u00fcler bir ara\u00e7t\u0131r. <strong>TLS\/SSL<\/strong> yap\u0131land\u0131rmas\u0131n\u0131n do\u011fru yap\u0131ld\u0131\u011f\u0131n\u0131 do\u011frulamak i\u00e7in kullan\u0131labilir.<\/li>\n<li><strong>Wireshark:<\/strong> A\u011f trafi\u011fini analiz etmek ve <strong>TLS\/SSL<\/strong> ileti\u015fimini incelemek i\u00e7in kullan\u0131lan bir paket analiz arac\u0131d\u0131r.<\/li>\n<li><strong>SSL Labs SSL Test:<\/strong> Web sunucusunun <strong>TLS\/SSL<\/strong> yap\u0131land\u0131rmas\u0131n\u0131 analiz eden ve g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 tespit eden \u00e7evrimi\u00e7i bir ara\u00e7t\u0131r.<\/li>\n<li><strong>Burp Suite:<\/strong> Web uygulamas\u0131 g\u00fcvenli\u011fi testleri i\u00e7in kullan\u0131lan kapsaml\u0131 bir ara\u00e7t\u0131r. <strong>TLS\/SSL<\/strong> yap\u0131land\u0131rmas\u0131ndaki zay\u0131fl\u0131klar\u0131 bulmaya yard\u0131mc\u0131 olur.<\/li>\n<\/ul>\n<p>A\u015fa\u011f\u0131daki tabloda, <strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde s\u0131k\u00e7a kullan\u0131lan baz\u0131 ara\u00e7lar ve temel \u00f6zellikleri kar\u015f\u0131la\u015ft\u0131r\u0131lmaktad\u0131r. Bu tablo, hangi arac\u0131n hangi ama\u00e7 i\u00e7in daha uygun oldu\u011funa dair genel bir fikir vermeyi ama\u00e7lamaktad\u0131r. Ara\u00e7 se\u00e7imi, projenin \u00f6zel gereksinimleri ve b\u00fct\u00e7esi dikkate al\u0131narak yap\u0131lmal\u0131d\u0131r.<\/p>\n<table>\n<tr>\n<th>Ara\u00e7 Ad\u0131<\/th>\n<th>Temel \u00d6zellikler<\/th>\n<th>Kullan\u0131m Alanlar\u0131<\/th>\n<\/tr>\n<tr>\n<td>OpenSSL<\/td>\n<td>Sertifika olu\u015fturma, \u015fifreleme, CSR olu\u015fturma<\/td>\n<td>Sertifika y\u00f6netimi, g\u00fcvenli ileti\u015fim<\/td>\n<\/tr>\n<tr>\n<td>Certbot<\/td>\n<td>Otomatik sertifika al\u0131m\u0131 ve yap\u0131land\u0131rma (Let&#8217;s Encrypt)<\/td>\n<td>Web sunucusu g\u00fcvenli\u011fi, otomatik sertifika yenileme<\/td>\n<\/tr>\n<tr>\n<td>Nmap<\/td>\n<td>Port tarama, servis versiyon tespiti, g\u00fcvenlik a\u00e7\u0131\u011f\u0131 denetimi<\/td>\n<td>A\u011f g\u00fcvenli\u011fi, sistem denetimi<\/td>\n<\/tr>\n<tr>\n<td>Wireshark<\/td>\n<td>A\u011f trafi\u011fi analizi, paket yakalama<\/td>\n<td>A\u011f sorun giderme, g\u00fcvenlik analizi<\/td>\n<\/tr>\n<tr>\n<td>SSL Labs SSL Test<\/td>\n<td>Web sunucusu <strong>TLS\/SSL<\/strong> yap\u0131land\u0131rma analizi<\/td>\n<td>Web sunucusu g\u00fcvenli\u011fi, uyumluluk testleri<\/td>\n<\/tr>\n<\/table>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> s\u00fcrecinde kullan\u0131lan ara\u00e7lar\u0131n g\u00fcncel tutulmas\u0131 ve d\u00fczenli olarak g\u00fcncellenmesi b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. G\u00fcvenlik a\u00e7\u0131klar\u0131 ve zafiyetler zamanla ortaya \u00e7\u0131kabilir ve bu nedenle ara\u00e7lar\u0131n en son s\u00fcr\u00fcmlerini kullanmak, sistemlerin g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kritik bir ad\u0131md\u0131r. Ayr\u0131ca, ara\u00e7lar\u0131n do\u011fru yap\u0131land\u0131r\u0131lmas\u0131 ve kullan\u0131m\u0131n\u0131n \u00f6\u011frenilmesi de \u00f6nemlidir. Aksi takdirde, yanl\u0131\u015f yap\u0131land\u0131rmalar g\u00fcvenlik risklerine yol a\u00e7abilir. Bu nedenle, <strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> konusunda uzman bir ekiple \u00e7al\u0131\u015fmak veya gerekli e\u011fitimleri almak, g\u00fcvenli bir web deneyimi sa\u011flamak i\u00e7in en iyi yakla\u015f\u0131mlardan biridir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"TLSSSL_Sertifika_Yonetimi_ve_Guncellemeleri\"><\/span>TLS\/SSL Sertifika Y\u00f6netimi ve G\u00fcncellemeleri<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131<\/strong>, web sitelerinin ve uygulamalar\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in hayati \u00f6neme sahiptir. Ancak, sertifikalar\u0131n d\u00fczenli olarak y\u00f6netilmesi ve g\u00fcncellenmesi, bu g\u00fcvenli\u011fin s\u00fcrd\u00fcr\u00fclebilirli\u011fi a\u00e7\u0131s\u0131ndan kritik bir ad\u0131md\u0131r. Sertifika y\u00f6netimi, sertifikalar\u0131n ge\u00e7erlilik s\u00fcrelerinin takibi, yenilenmesi, iptali ve gerekti\u011finde de\u011fi\u015ftirilmesi s\u00fcre\u00e7lerini kapsar. Bu s\u00fcre\u00e7lerin do\u011fru bir \u015fekilde y\u00f6netilmesi, olas\u0131 g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n \u00f6n\u00fcne ge\u00e7ilmesine yard\u0131mc\u0131 olur.<\/p>\n<table>\n<thead>\n<tr>\n<th>S\u00fcre\u00e7<\/th>\n<th>A\u00e7\u0131klama<\/th>\n<th>\u00d6nemi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sertifika Takibi<\/td>\n<td>Sertifikalar\u0131n ge\u00e7erlilik tarihlerinin d\u00fczenli olarak izlenmesi.<\/td>\n<td>Sertifika s\u00fcrelerinin a\u015f\u0131lmas\u0131n\u0131 \u00f6nler.<\/td>\n<\/tr>\n<tr>\n<td>Sertifika Yenileme<\/td>\n<td>Sertifikalar\u0131n s\u00fcresi dolmadan yenilenmesi.<\/td>\n<td>Kesintisiz hizmet ve g\u00fcvenli\u011fi sa\u011flar.<\/td>\n<\/tr>\n<tr>\n<td>Sertifika \u0130ptali<\/td>\n<td>G\u00fcvenli\u011fi tehlikeye d\u00fc\u015fen sertifikalar\u0131n iptal edilmesi.<\/td>\n<td>Olas\u0131 sald\u0131r\u0131lar\u0131 engeller.<\/td>\n<\/tr>\n<tr>\n<td>Sertifika De\u011fi\u015ftirme<\/td>\n<td>Farkl\u0131 bir sertifika t\u00fcr\u00fcne ge\u00e7ilmesi veya sertifika bilgilerinin g\u00fcncellenmesi.<\/td>\n<td>Geli\u015fen g\u00fcvenlik ihtiya\u00e7lar\u0131na uyum sa\u011flar.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Sertifika g\u00fcncellemeleri, sertifikalar\u0131n periyodik olarak yenilenmesi veya de\u011fi\u015ftirilmesi i\u015flemidir. Bu g\u00fcncellemeler, g\u00fcvenlik protokollerindeki de\u011fi\u015fiklikler, yeni g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n ke\u015ffedilmesi veya sertifika sa\u011flay\u0131c\u0131s\u0131n\u0131n politikalar\u0131ndaki g\u00fcncellemeler gibi \u00e7e\u015fitli nedenlerle gerekli olabilir. G\u00fcncellemelerin zaman\u0131nda yap\u0131lmas\u0131, web sitenizin ve uygulamalar\u0131n\u0131z\u0131n her zaman en g\u00fcncel g\u00fcvenlik standartlar\u0131na uygun olmas\u0131n\u0131 sa\u011flar.<\/p>\n<ol> <strong>Sertifika G\u00fcncelleme S\u00fcreci<\/strong> <\/p>\n<li>Sertifika s\u00fcresinin biti\u015f tarihini belirleyin.<\/li>\n<li>Yeni bir sertifika talebi olu\u015fturun (CSR).<\/li>\n<li>Sertifika sa\u011flay\u0131c\u0131s\u0131ndan yeni sertifikay\u0131 edinin.<\/li>\n<li>Yeni sertifikay\u0131 sunucunuza y\u00fckleyin.<\/li>\n<li>Sunucunuzu yeniden ba\u015flat\u0131n.<\/li>\n<li>Sertifikan\u0131n do\u011fru yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131n\u0131 test edin.<\/li>\n<\/ol>\n<p>Sertifika y\u00f6netiminde yap\u0131lan hatalar, ciddi g\u00fcvenlik sorunlar\u0131na yol a\u00e7abilir. \u00d6rne\u011fin, s\u00fcresi dolmu\u015f bir sertifika, kullan\u0131c\u0131lar\u0131n web sitenize eri\u015fiminde sorunlara neden olabilir ve hatta taray\u0131c\u0131lar taraf\u0131ndan g\u00fcvenlik uyar\u0131s\u0131 verilmesine yol a\u00e7abilir. Bu durum, kullan\u0131c\u0131lar\u0131n g\u00fcvenini zedeler ve web sitenizin itibar\u0131n\u0131 olumsuz etkiler. Bu nedenle, <strong>sertifika y\u00f6netim s\u00fcre\u00e7lerinin dikkatli ve d\u00fczenli bir \u015fekilde y\u00fcr\u00fct\u00fclmesi<\/strong> b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r.<\/p>\n<p>Sertifika y\u00f6netim ara\u00e7lar\u0131 ve otomasyon sistemleri kullanarak bu s\u00fcre\u00e7leri daha verimli hale getirebilirsiniz. Bu ara\u00e7lar, sertifika s\u00fcrelerini otomatik olarak takip edebilir, yenileme i\u015flemlerini kolayla\u015ft\u0131rabilir ve hatal\u0131 yap\u0131land\u0131rmalar\u0131 tespit edebilir. Bu sayede, hem zamandan tasarruf edersiniz hem de g\u00fcvenlik risklerini en aza indirirsiniz.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sonuc_ve_Ileriye_Donuk_Oneriler\"><\/span>Sonu\u00e7 ve \u0130leriye D\u00f6n\u00fck \u00d6neriler<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Bu makalede, <strong>TLS\/SSL yap\u0131land\u0131rmas\u0131<\/strong> konusunu derinlemesine inceledik. TLS\/SSL&#8217;in ne oldu\u011funu, neden \u00f6nemli oldu\u011funu, ad\u0131m ad\u0131m nas\u0131l yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131n\u0131, yayg\u0131n hatalar\u0131, \u00e7al\u0131\u015fma prensiplerini, sertifika t\u00fcrlerini, g\u00fcvenlik ve performans hususlar\u0131n\u0131, gerekli ara\u00e7lar\u0131 ve sertifika y\u00f6netimini ele ald\u0131k. Bu bilgilerin, web sitenizin ve uygulamalar\u0131n\u0131z\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kritik \u00f6neme sahip oldu\u011funu umuyoruz.<\/p>\n<p><strong>TLS\/SSL Yap\u0131land\u0131rmas\u0131nda Dikkat Edilmesi Gerekenler<\/strong><\/p>\n<ul>\n<li>En g\u00fcncel TLS protokollerini kullan\u0131n (TLS 1.3 tercih edilmelidir).<\/li>\n<li>Zay\u0131f \u015fifreleme algoritmalar\u0131ndan ka\u00e7\u0131n\u0131n.<\/li>\n<li>Sertifikalar\u0131n\u0131z\u0131 d\u00fczenli olarak g\u00fcncelleyin ve yenileyin.<\/li>\n<li>Sertifika Zincirinin do\u011fru yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131ndan emin olun.<\/li>\n<li>OCSP Stapling ve HSTS gibi g\u00fcvenlik \u00f6zelliklerini etkinle\u015ftirin.<\/li>\n<li>Web sunucunuzu ve TLS\/SSL k\u00fct\u00fcphanelerinizi g\u00fcncel tutun.<\/li>\n<\/ul>\n<p>A\u015fa\u011f\u0131daki tabloda, farkl\u0131 TLS protokollerinin g\u00fcvenlik seviyelerini ve \u00f6nerilen kullan\u0131m durumlar\u0131n\u0131 \u00f6zetledik.<\/p>\n<table>\n<thead>\n<tr>\n<th>Protokol<\/th>\n<th>G\u00fcvenlik Seviyesi<\/th>\n<th>\u00d6nerilen Kullan\u0131m Durumu<\/th>\n<th>Notlar<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SSL 3.0<\/td>\n<td>\u00c7ok D\u00fc\u015f\u00fck (Kullan\u0131mdan Kald\u0131r\u0131ld\u0131)<\/td>\n<td>Kullan\u0131lmamal\u0131d\u0131r<\/td>\n<td>POODLE sald\u0131r\u0131s\u0131na kar\u015f\u0131 savunmas\u0131zd\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.0<\/td>\n<td>D\u00fc\u015f\u00fck (Kullan\u0131mdan Kald\u0131r\u0131l\u0131yor)<\/td>\n<td>Eski sistemlerle uyumluluk gerektiren durumlar (\u00f6nerilmez)<\/td>\n<td>BEAST sald\u0131r\u0131s\u0131na kar\u015f\u0131 savunmas\u0131zd\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.1<\/td>\n<td>Orta<\/td>\n<td>Eski sistemlerle uyumluluk gerektiren durumlar (\u00f6nerilmez)<\/td>\n<td>RC4 \u015fifreleme algoritmas\u0131 kullanmamal\u0131d\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.2<\/td>\n<td>Y\u00fcksek<\/td>\n<td>\u00c7o\u011fu modern sistem i\u00e7in uygundur<\/td>\n<td>G\u00fcvenli \u015fifreleme algoritmalar\u0131 ile kullan\u0131lmal\u0131d\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>TLS 1.3<\/td>\n<td>En Y\u00fcksek<\/td>\n<td>Yeni projeler ve modern sistemler i\u00e7in \u015fiddetle tavsiye edilir<\/td>\n<td>Daha h\u0131zl\u0131 ve daha g\u00fcvenli bir protokold\u00fcr.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Unutulmamal\u0131d\u0131r ki, g\u00fcvenlik s\u00fcrekli bir s\u00fcre\u00e7tir. <strong>TLS\/SSL yap\u0131land\u0131rman\u0131z\u0131<\/strong> d\u00fczenli olarak g\u00f6zden ge\u00e7irin, g\u00fcvenlik a\u00e7\u0131klar\u0131na kar\u015f\u0131 test edin ve en iyi uygulamalar\u0131 takip edin. Siber g\u00fcvenlik tehditleri s\u00fcrekli de\u011fi\u015fti\u011fi i\u00e7in, g\u00fcncel kalmak ve proaktif olmak hayati \u00f6nem ta\u015f\u0131r.<\/p>\n<p>TLS\/SSL yap\u0131land\u0131rmas\u0131 karma\u015f\u0131k bir konu olabilir. Profesyonel yard\u0131m almak veya bir g\u00fcvenlik uzman\u0131na dan\u0131\u015fmak, web sitenizin ve uygulamalar\u0131n\u0131z\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in ak\u0131ll\u0131ca bir yat\u0131r\u0131m olabilir. G\u00fcvenli\u011finiz i\u00e7in asla taviz vermeyin.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sik_Sorulan_Sorular\"><\/span>S\u0131k Sorulan Sorular<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131n web siteleri ve uygulamalar i\u00e7in temel amac\u0131 nedir?<\/strong><\/p>\n<p>TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131n temel amac\u0131, web siteleri ve uygulamalar aras\u0131nda iletilen verilerin \u015fifrelenerek g\u00fcvenli bir \u015fekilde aktar\u0131lmas\u0131n\u0131 sa\u011flamakt\u0131r. Bu sayede hassas bilgilerin (\u015fifreler, kredi kart\u0131 bilgileri, ki\u015fisel veriler vb.) yetkisiz ki\u015filerin eline ge\u00e7mesi engellenir ve kullan\u0131c\u0131lar\u0131n gizlili\u011fi korunur.<\/p>\n<p><strong>Bir TLS\/SSL sertifikas\u0131n\u0131n ge\u00e7erlili\u011fini nas\u0131l kontrol edebilirim ve ge\u00e7erlilik s\u00fcresi doldu\u011funda ne yapmal\u0131y\u0131m?<\/strong><\/p>\n<p>Bir TLS\/SSL sertifikas\u0131n\u0131n ge\u00e7erlili\u011fini kontrol etmek i\u00e7in taray\u0131c\u0131n\u0131zdaki adres \u00e7ubu\u011funda yer alan kilit simgesine t\u0131klayarak sertifika bilgilerini g\u00f6r\u00fcnt\u00fcleyebilirsiniz. Ayr\u0131ca online sertifika do\u011frulama ara\u00e7lar\u0131n\u0131 da kullanabilirsiniz. Sertifikan\u0131n s\u00fcresi doldu\u011funda, web sitenizin g\u00fcvenli\u011finin devaml\u0131l\u0131\u011f\u0131 i\u00e7in en k\u0131sa s\u00fcrede yeni bir sertifika alman\u0131z ve sunucunuza y\u00fcklemeniz gerekmektedir.<\/p>\n<p><strong>Hangi t\u00fcr TLS\/SSL sertifikas\u0131 benim ihtiyac\u0131m i\u00e7in en uygun olur ve aralar\u0131ndaki temel farklar nelerdir?<\/strong><\/p>\n<p>\u0130htiyac\u0131n\u0131za en uygun TLS\/SSL sertifikas\u0131, web sitenizin veya uygulaman\u0131z\u0131n gereksinimlerine ba\u011fl\u0131d\u0131r. Temel olarak \u00fc\u00e7 ana t\u00fcr sertifika vard\u0131r: Alan Ad\u0131 Do\u011frulamas\u0131 (DV), Organizasyon Do\u011frulamas\u0131 (OV) ve Geni\u015fletilmi\u015f Do\u011frulama (EV). DV sertifikalar\u0131 en temel g\u00fcvenlik seviyesini sunarken, EV sertifikalar\u0131 en y\u00fcksek g\u00fcven seviyesini sa\u011flar ve adres \u00e7ubu\u011funda \u015firket ad\u0131n\u0131z\u0131 g\u00f6sterir. OV sertifikalar\u0131 ise DV ve EV aras\u0131nda bir denge sunar. Se\u00e7im yaparken g\u00fcven seviyesi, b\u00fct\u00e7e ve do\u011frulama s\u00fcreci gibi fakt\u00f6rleri g\u00f6z \u00f6n\u00fcnde bulundurmal\u0131s\u0131n\u0131z.<\/p>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131nda s\u0131k\u00e7a kar\u015f\u0131la\u015f\u0131lan &#039;sertifika zinciri eksik&#039; hatas\u0131 ne anlama gelir ve nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr?<\/strong><\/p>\n<p>&#039;Sertifika zinciri eksik&#039; hatas\u0131, sunucunun sertifikay\u0131 do\u011frulamak i\u00e7in gereken t\u00fcm ara sertifikalar\u0131 i\u00e7ermedi\u011fi anlam\u0131na gelir. Bu sorunu \u00e7\u00f6zmek i\u00e7in, sertifika sa\u011flay\u0131c\u0131n\u0131zdan ara sertifika zincirini indirip sunucunuzda do\u011fru \u015fekilde yap\u0131land\u0131rman\u0131z gerekir. Genellikle bu, sunucu yap\u0131land\u0131rma dosyan\u0131zda ara sertifikalar\u0131 birle\u015ftirerek yap\u0131l\u0131r.<\/p>\n<p><strong>TLS\/SSL protokol\u00fcnde kullan\u0131lan \u015fifreleme algoritmalar\u0131n\u0131n (cipher suites) \u00f6nemi nedir ve nas\u0131l do\u011fru bir \u015fekilde yap\u0131land\u0131r\u0131lmal\u0131d\u0131r?<\/strong><\/p>\n<p>\u015eifreleme algoritmalar\u0131 (cipher suites), TLS\/SSL ba\u011flant\u0131s\u0131 s\u0131ras\u0131nda kullan\u0131lan \u015fifreleme y\u00f6ntemlerini belirler. G\u00fcvenli\u011fi sa\u011flamak i\u00e7in g\u00fcncel ve g\u00fc\u00e7l\u00fc \u015fifreleme algoritmalar\u0131n\u0131 kullanmak \u00f6nemlidir. G\u00fc\u00e7s\u00fcz veya eski algoritmalar\u0131n kullan\u0131m\u0131 sald\u0131r\u0131lara kar\u015f\u0131 savunmas\u0131zl\u0131\u011fa yol a\u00e7abilir. Do\u011fru yap\u0131land\u0131rma i\u00e7in, g\u00fcncel g\u00fcvenlik standartlar\u0131na uygun, g\u00fc\u00e7l\u00fc algoritmalar\u0131 tercih etmeli ve zay\u0131f algoritmalar\u0131 devre d\u0131\u015f\u0131 b\u0131rakmal\u0131s\u0131n\u0131z. Sunucu yap\u0131land\u0131rma dosyalar\u0131n\u0131zda (\u00f6rne\u011fin, Apache veya Nginx) \u015fifreleme algoritmalar\u0131n\u0131 belirtmelisiniz.<\/p>\n<p><strong>HTTP&#039;den HTTPS&#039;ye ge\u00e7i\u015f (y\u00f6nlendirme) nas\u0131l yap\u0131l\u0131r ve bu ge\u00e7i\u015f s\u0131ras\u0131nda nelere dikkat etmek gerekir?<\/strong><\/p>\n<p>HTTP&#039;den HTTPS&#039;ye ge\u00e7i\u015f, web sitenizin tamam\u0131n\u0131 g\u00fcvenli bir \u015fekilde HTTPS \u00fczerinden sunmas\u0131n\u0131 sa\u011flamak i\u00e7in yap\u0131l\u0131r. Bu ge\u00e7i\u015fi sa\u011flamak i\u00e7in sunucunuzda HTTP isteklerini HTTPS&#039;ye y\u00f6nlendiren bir yap\u0131land\u0131rma olu\u015fturman\u0131z gerekir. Bunu .htaccess dosyas\u0131, sunucu yap\u0131land\u0131rma dosyas\u0131 (\u00f6rne\u011fin, Apache i\u00e7in VirtualHost) veya bir eklenti arac\u0131l\u0131\u011f\u0131yla yapabilirsiniz. Dikkat etmeniz gerekenler: t\u00fcm kaynaklar\u0131n (resimler, CSS, JavaScript) HTTPS \u00fczerinden sunuldu\u011fundan emin olmak, i\u00e7 ba\u011flant\u0131lar\u0131 HTTPS ile g\u00fcncellemek ve arama motorlar\u0131na HTTPS&#039;yi tercih etti\u011finizi bildirmek i\u00e7in 301 y\u00f6nlendirmelerini kullanmakt\u0131r.<\/p>\n<p><strong>TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131n web sitesi performans\u0131 \u00fczerindeki etkileri nelerdir ve bu etkileri azaltmak i\u00e7in neler yap\u0131labilir?<\/strong><\/p>\n<p>TLS\/SSL yap\u0131land\u0131rmas\u0131, ba\u011flant\u0131 kurma ve veri \u015fifreleme\/\u015fifre \u00e7\u00f6zme s\u00fcre\u00e7leri nedeniyle web sitesi performans\u0131n\u0131 etkileyebilir. Ancak bu etkileri azaltmak i\u00e7in \u00e7e\u015fitli optimizasyonlar yap\u0131labilir. Bunlar aras\u0131nda: Keep-Alive \u00f6zelli\u011fini etkinle\u015ftirmek (tek bir TCP ba\u011flant\u0131s\u0131 \u00fczerinden birden fazla iste\u011fin g\u00f6nderilmesini sa\u011flar), OCSP Stapling kullanmak (sertifika ge\u00e7erlili\u011fini sunucu taraf\u0131ndan kontrol edilmesini sa\u011flar, istemcinin bu i\u015flemi yapmas\u0131na gerek kalmaz), HTTP\/2 kullanmak (daha verimli bir protokold\u00fcr), ve CDN kullanmak (i\u00e7eri\u011fi kullan\u0131c\u0131ya en yak\u0131n sunucudan sunarak gecikmeyi azalt\u0131r) yer al\u0131r.<\/p>\n<p><strong>TLS\/SSL sertifikas\u0131 al\u0131rken nelere dikkat etmeliyim ve hangi sertifika sa\u011flay\u0131c\u0131lar\u0131n\u0131 tercih etmeliyim?<\/strong><\/p>\n<p>TLS\/SSL sertifikas\u0131 al\u0131rken, sertifika sa\u011flay\u0131c\u0131n\u0131n g\u00fcvenilirli\u011fine, sertifikan\u0131n t\u00fcr\u00fcne, do\u011frulama s\u00fcrecine, sertifika garantisine ve fiyat\u0131na dikkat etmelisiniz. Ayr\u0131ca, sertifikan\u0131n taray\u0131c\u0131lar ve cihazlar taraf\u0131ndan yayg\u0131n olarak desteklenmesi de \u00f6nemlidir. G\u00fcvenilir sertifika sa\u011flay\u0131c\u0131lar\u0131 aras\u0131nda Let&#039;s Encrypt (\u00fccretsiz), DigiCert, Sectigo, GlobalSign ve Comodo say\u0131labilir. \u0130htiya\u00e7lar\u0131n\u0131za ve b\u00fct\u00e7enize en uygun sa\u011flay\u0131c\u0131y\u0131 se\u00e7mek i\u00e7in farkl\u0131 sa\u011flay\u0131c\u0131lar\u0131 kar\u015f\u0131la\u015ft\u0131rman\u0131z faydal\u0131 olacakt\u0131r.<\/p>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"TLS\/SSL yapu0131landu0131rmasu0131nu0131n web siteleri ve uygulamalar iu00e7in temel amacu0131 nedir?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"TLS\/SSL yapu0131landu0131rmasu0131nu0131n temel amacu0131, web siteleri ve uygulamalar arasu0131nda iletilen verilerin u015fifrelenerek gu00fcvenli bir u015fekilde aktaru0131lmasu0131nu0131 sau011flamaktu0131r. Bu sayede hassas bilgilerin (u015fifreler, kredi kartu0131 bilgileri, kiu015fisel veriler vb.) yetkisiz kiu015filerin eline geu00e7mesi engellenir ve kullanu0131cu0131laru0131n gizliliu011fi korunur.\"}},{\"@type\":\"Question\",\"name\":\"Bir TLS\/SSL sertifikasu0131nu0131n geu00e7erliliu011fini nasu0131l kontrol edebilirim ve geu00e7erlilik su00fcresi dolduu011funda ne yapmalu0131yu0131m?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Bir TLS\/SSL sertifikasu0131nu0131n geu00e7erliliu011fini kontrol etmek iu00e7in tarayu0131cu0131nu0131zdaki adres u00e7ubuu011funda yer alan kilit simgesine tu0131klayarak sertifika bilgilerini gu00f6ru00fcntu00fcleyebilirsiniz. Ayru0131ca online sertifika dou011frulama arau00e7laru0131nu0131 da kullanabilirsiniz. Sertifikanu0131n su00fcresi dolduu011funda, web sitenizin gu00fcvenliu011finin devamlu0131lu0131u011fu0131 iu00e7in en ku0131sa su00fcrede yeni bir sertifika almanu0131z ve sunucunuza yu00fcklemeniz gerekmektedir.\"}},{\"@type\":\"Question\",\"name\":\"Hangi tu00fcr TLS\/SSL sertifikasu0131 benim ihtiyacu0131m iu00e7in en uygun olur ve aralaru0131ndaki temel farklar nelerdir?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"u0130htiyacu0131nu0131za en uygun TLS\/SSL sertifikasu0131, web sitenizin veya uygulamanu0131zu0131n gereksinimlerine bau011flu0131du0131r. Temel olarak u00fcu00e7 ana tu00fcr sertifika vardu0131r: Alan Adu0131 Dou011frulamasu0131 (DV), Organizasyon Dou011frulamasu0131 (OV) ve Geniu015fletilmiu015f Dou011frulama (EV). DV sertifikalaru0131 en temel gu00fcvenlik seviyesini sunarken, EV sertifikalaru0131 en yu00fcksek gu00fcven seviyesini sau011flar ve adres u00e7ubuu011funda u015firket adu0131nu0131zu0131 gu00f6sterir. OV sertifikalaru0131 ise DV ve EV arasu0131nda bir denge sunar. Seu00e7im yaparken gu00fcven seviyesi, bu00fctu00e7e ve dou011frulama su00fcreci gibi faktu00f6rleri gu00f6z u00f6nu00fcnde bulundurmalu0131su0131nu0131z.\"}},{\"@type\":\"Question\",\"name\":\"TLS\/SSL yapu0131landu0131rmasu0131nda su0131ku00e7a karu015fu0131lau015fu0131lan 'sertifika zinciri eksik' hatasu0131 ne anlama gelir ve nasu0131l u00e7u00f6zu00fclu00fcr?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"'Sertifika zinciri eksik' hatasu0131, sunucunun sertifikayu0131 dou011frulamak iu00e7in gereken tu00fcm ara sertifikalaru0131 iu00e7ermediu011fi anlamu0131na gelir. Bu sorunu u00e7u00f6zmek iu00e7in, sertifika sau011flayu0131cu0131nu0131zdan ara sertifika zincirini indirip sunucunuzda dou011fru u015fekilde yapu0131landu0131rmanu0131z gerekir. Genellikle bu, sunucu yapu0131landu0131rma dosyanu0131zda ara sertifikalaru0131 birleu015ftirerek yapu0131lu0131r.\"}},{\"@type\":\"Question\",\"name\":\"TLS\/SSL protokolu00fcnde kullanu0131lan u015fifreleme algoritmalaru0131nu0131n (cipher suites) u00f6nemi nedir ve nasu0131l dou011fru bir u015fekilde yapu0131landu0131ru0131lmalu0131du0131r?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"u015eifreleme algoritmalaru0131 (cipher suites), TLS\/SSL bau011flantu0131su0131 su0131rasu0131nda kullanu0131lan u015fifreleme yu00f6ntemlerini belirler. Gu00fcvenliu011fi sau011flamak iu00e7in gu00fcncel ve gu00fcu00e7lu00fc u015fifreleme algoritmalaru0131nu0131 kullanmak u00f6nemlidir. Gu00fcu00e7su00fcz veya eski algoritmalaru0131n kullanu0131mu0131 saldu0131ru0131lara karu015fu0131 savunmasu0131zlu0131u011fa yol au00e7abilir. Dou011fru yapu0131landu0131rma iu00e7in, gu00fcncel gu00fcvenlik standartlaru0131na uygun, gu00fcu00e7lu00fc algoritmalaru0131 tercih etmeli ve zayu0131f algoritmalaru0131 devre du0131u015fu0131 bu0131rakmalu0131su0131nu0131z. Sunucu yapu0131landu0131rma dosyalaru0131nu0131zda (u00f6rneu011fin, Apache veya Nginx) u015fifreleme algoritmalaru0131nu0131 belirtmelisiniz.\"}},{\"@type\":\"Question\",\"name\":\"HTTP'den HTTPS'ye geu00e7iu015f (yu00f6nlendirme) nasu0131l yapu0131lu0131r ve bu geu00e7iu015f su0131rasu0131nda nelere dikkat etmek gerekir?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"HTTP'den HTTPS'ye geu00e7iu015f, web sitenizin tamamu0131nu0131 gu00fcvenli bir u015fekilde HTTPS u00fczerinden sunmasu0131nu0131 sau011flamak iu00e7in yapu0131lu0131r. Bu geu00e7iu015fi sau011flamak iu00e7in sunucunuzda HTTP isteklerini HTTPS'ye yu00f6nlendiren bir yapu0131landu0131rma oluu015fturmanu0131z gerekir. Bunu .htaccess dosyasu0131, sunucu yapu0131landu0131rma dosyasu0131 (u00f6rneu011fin, Apache iu00e7in VirtualHost) veya bir eklenti aracu0131lu0131u011fu0131yla yapabilirsiniz. Dikkat etmeniz gerekenler: tu00fcm kaynaklaru0131n (resimler, CSS, JavaScript) HTTPS u00fczerinden sunulduu011fundan emin olmak, iu00e7 bau011flantu0131laru0131 HTTPS ile gu00fcncellemek ve arama motorlaru0131na HTTPS'yi tercih ettiu011finizi bildirmek iu00e7in 301 yu00f6nlendirmelerini kullanmaktu0131r.\"}},{\"@type\":\"Question\",\"name\":\"TLS\/SSL yapu0131landu0131rmasu0131nu0131n web sitesi performansu0131 u00fczerindeki etkileri nelerdir ve bu etkileri azaltmak iu00e7in neler yapu0131labilir?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"TLS\/SSL yapu0131landu0131rmasu0131, bau011flantu0131 kurma ve veri u015fifreleme\/u015fifre u00e7u00f6zme su00fcreu00e7leri nedeniyle web sitesi performansu0131nu0131 etkileyebilir. Ancak bu etkileri azaltmak iu00e7in u00e7eu015fitli optimizasyonlar yapu0131labilir. Bunlar arasu0131nda: Keep-Alive u00f6zelliu011fini etkinleu015ftirmek (tek bir TCP bau011flantu0131su0131 u00fczerinden birden fazla isteu011fin gu00f6nderilmesini sau011flar), OCSP Stapling kullanmak (sertifika geu00e7erliliu011fini sunucu tarafu0131ndan kontrol edilmesini sau011flar, istemcinin bu iu015flemi yapmasu0131na gerek kalmaz), HTTP\/2 kullanmak (daha verimli bir protokoldu00fcr), ve CDN kullanmak (iu00e7eriu011fi kullanu0131cu0131ya en yaku0131n sunucudan sunarak gecikmeyi azaltu0131r) yer alu0131r.\"}},{\"@type\":\"Question\",\"name\":\"TLS\/SSL sertifikasu0131 alu0131rken nelere dikkat etmeliyim ve hangi sertifika sau011flayu0131cu0131laru0131nu0131 tercih etmeliyim?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"TLS\/SSL sertifikasu0131 alu0131rken, sertifika sau011flayu0131cu0131nu0131n gu00fcvenilirliu011fine, sertifikanu0131n tu00fcru00fcne, dou011frulama su00fcrecine, sertifika garantisine ve fiyatu0131na dikkat etmelisiniz. Ayru0131ca, sertifikanu0131n tarayu0131cu0131lar ve cihazlar tarafu0131ndan yaygu0131n olarak desteklenmesi de u00f6nemlidir. Gu00fcvenilir sertifika sau011flayu0131cu0131laru0131 arasu0131nda Let's Encrypt (u00fccretsiz), DigiCert, Sectigo, GlobalSign ve Comodo sayu0131labilir. u0130htiyau00e7laru0131nu0131za ve bu00fctu00e7enize en uygun sau011flayu0131cu0131yu0131 seu00e7mek iu00e7in farklu0131 sau011flayu0131cu0131laru0131 karu015fu0131lau015ftu0131rmanu0131z faydalu0131 olacaktu0131r.\"}}]}<\/script><\/p>\n<p>Daha fazla bilgi: SSL Nedir?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bu blog yaz\u0131s\u0131, TLS\/SSL yap\u0131land\u0131rmas\u0131 hakk\u0131nda kapsaml\u0131 bir rehber sunmaktad\u0131r. TLS\/SSL yap\u0131land\u0131rmas\u0131n\u0131n ne oldu\u011funu, \u00f6nemini ve ama\u00e7lar\u0131n\u0131 detayl\u0131 bir \u015fekilde a\u00e7\u0131klarken, ad\u0131m ad\u0131m yap\u0131land\u0131rma s\u00fcrecini de ele almaktad\u0131r. Ayr\u0131ca, yayg\u0131n TLS\/SSL yap\u0131land\u0131rma hatalar\u0131na dikkat \u00e7ekerek, bu hatalardan nas\u0131l ka\u00e7\u0131n\u0131laca\u011f\u0131n\u0131 anlatmaktad\u0131r. TLS\/SSL protokol\u00fcn\u00fcn \u00e7al\u0131\u015fma prensibi, sertifika t\u00fcrleri ve \u00f6zellikleri incelenirken, g\u00fcvenlik ve performans aras\u0131ndaki denge de [&hellip;]<\/p>\n","protected":false},"author":94,"featured_media":20862,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAow5YvFDA:productID":"","footnotes":""},"categories":[419],"tags":[877,989,983,981,985],"class_list":["post-9757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guvenlik","tag-guvenlik","tag-hatalar","tag-ssl","tag-tls","tag-yapilandirma"],"_links":{"self":[{"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/posts\/9757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/users\/94"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/comments?post=9757"}],"version-history":[{"count":0,"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/posts\/9757\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/media\/20862"}],"wp:attachment":[{"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/media?parent=9757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/categories?post=9757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hostragons.com\/jv\/wp-json\/wp\/v2\/tags?post=9757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}