{"id":476945,"date":"2023-08-09T09:05:36","date_gmt":"2023-08-09T09:05:36","guid":{"rendered":""},"modified":"2023-09-05T11:13:44","modified_gmt":"2023-09-05T11:13:44","slug":"dns-ttl","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/tr\/wiki\/dns-ttl\/","title":{"rendered":"DNS TTL&#039;si"},"content":{"rendered":"<p>Daha yayg\u0131n olarak DNS TTL olarak bilinen Etki Alan\u0131 Ad\u0131 Sistemi Ya\u015fam S\u00fcresi, internet mimarisinin ayr\u0131lmaz bir bile\u015fenidir ve DNS \u00f6nbelle\u011finde depolanan verilerin \u00f6mr\u00fcn\u00fc tan\u0131mlar. Bu makale, DNS TTL, ba\u015flang\u0131c\u0131, ayr\u0131nt\u0131l\u0131 bilgiler, i\u00e7 yap\u0131s\u0131, temel \u00f6zellikleri, t\u00fcrleri, kullan\u0131mlar\u0131, kar\u015f\u0131la\u015ft\u0131rmalar\u0131 ve OneProxy gibi proxy sunucularla ili\u015fkisi hakk\u0131nda kapsaml\u0131 bir k\u0131lavuz sa\u011flayacakt\u0131r.<\/p>\n<h2>DNS TTL&#039;nin Do\u011fu\u015fu ve \u0130lk S\u00f6z\u00fc<\/h2>\n<p>DNS TTL kavram\u0131 ilk olarak 1983 y\u0131l\u0131nda Alan Ad\u0131 Sisteminin (DNS) do\u011fu\u015fuyla tan\u0131t\u0131ld\u0131. \u0130nternetin artan \u00f6l\u00e7e\u011finin yaratt\u0131\u011f\u0131 sorunlara \u00e7\u00f6z\u00fcm\u00fcn bir par\u00e7as\u0131 olarak geldi. DNS&#039;den \u00f6nce internet kullan\u0131c\u0131 dostu de\u011fildi; ileti\u015fim \u00f6ncelikle hat\u0131rlanmas\u0131 ve kullan\u0131lmas\u0131 zor olan IP adresleri kullan\u0131larak kuruldu. DNS&#039;nin ve dolay\u0131s\u0131yla DNS TTL&#039;nin kullan\u0131ma sunulmas\u0131, internetin \u00f6l\u00e7eklenmesine ve daha kullan\u0131c\u0131 dostu olmas\u0131na olanak tan\u0131yan bir devrimdi.<\/p>\n<h2>DNS TTL: Geni\u015fletilmi\u015f G\u00f6r\u00fcn\u00fcm<\/h2>\n<p>DNS TTL, bir DNS \u00e7\u00f6z\u00fcmleyicinin sorgulanan bir alan ad\u0131 i\u00e7in yan\u0131t\u0131 \u00f6nbelle\u011fe almas\u0131 gereken s\u00fcreyi tan\u0131mlayan mekanizmad\u0131r. Saniye cinsinden belirtilir ve d\u00f6nd\u00fcr\u00fclen DNS kayd\u0131n\u0131n bir par\u00e7as\u0131d\u0131r. Bir etki alan\u0131 \u00e7\u00f6z\u00fcmlendi\u011finde, DNS \u00e7\u00f6z\u00fcmleyici, DNS sunucusundaki y\u00fck\u00fc azaltmak ve ayn\u0131 etki alan\u0131 i\u00e7in sonraki sorgular\u0131 h\u0131zland\u0131rmak i\u00e7in yan\u0131t\u0131 \u00f6nbelle\u011fe al\u0131r. DNS TTL de\u011feri, bu \u00f6nbelle\u011fin ne zaman temizlenmesi veya yenilenmesi gerekti\u011fini tan\u0131mlar.<\/p>\n<p>\u00d6rne\u011fin, bir DNS TTL de\u011feri 3600 saniyeye (bir saat) ayarlanm\u0131\u015fsa \u00e7\u00f6z\u00fcmleyici, \u00f6nbelle\u011fe al\u0131nan yan\u0131t\u0131 atmadan ve DNS sunucusundan yeni bir yan\u0131t istemeden \u00f6nce bir saat boyunca tutacakt\u0131r.<\/p>\n<h2>DNS TTL \u0130\u00e7inde: \u00c7al\u0131\u015fma Mekanizmas\u0131<\/h2>\n<p>Her DNS kayd\u0131, kayd\u0131n bir DNS \u00e7\u00f6z\u00fcmleyici taraf\u0131ndan \u00f6nbelle\u011fe al\u0131nabilece\u011fi maksimum s\u00fcreyi belirleyen bir TTL de\u011feri i\u00e7erir. \u00c7\u00f6z\u00fcmleyici, TTL s\u00fcresi boyunca bir kayd\u0131 elinde tuttu\u011funda, kayd\u0131 silecektir ve bu alan ad\u0131na y\u00f6nelik yeni istekler, yeni bir aramayla sonu\u00e7lanacakt\u0131r.<\/p>\n<p>Kay\u0131t h\u00e2l\u00e2 \u00e7\u00f6z\u00fcmleyicinin \u00f6nbelle\u011findeyken TTL&#039;nin s\u00fcresi dolarsa \u00e7\u00f6z\u00fcmleyici, \u00f6nbelle\u011fe al\u0131nan kayd\u0131 kullanmaz. Bunun yerine yeni bir arama ger\u00e7ekle\u015ftirecek, en son kayd\u0131 alacak ve TTL geri say\u0131m\u0131n\u0131 yeniden ba\u015flatacak.<\/p>\n<h2>DNS TTL&#039;nin Temel \u00d6zellikleri<\/h2>\n<p>DNS TTL&#039;nin g\u00f6ze \u00e7arpan \u00f6zellikleri \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>\u00d6nbellek Y\u00f6netimi<\/strong>: DNS TTL&#039;nin birincil amac\u0131, bir \u00e7\u00f6z\u00fcmleyicideki DNS \u00f6nbelle\u011finin \u00f6mr\u00fcn\u00fc kontrol etmektir.<\/li>\n<li><strong>Y\u00fck Azaltma<\/strong>: TTL, DNS yan\u0131tlar\u0131n\u0131 \u00f6nbelle\u011fe alarak ve yeniden kullanarak DNS sunucular\u0131ndaki y\u00fck\u00fc azalt\u0131r.<\/li>\n<li><strong>Azalt\u0131lm\u0131\u015f Gecikme<\/strong>: \u00d6nbelle\u011fe al\u0131nan DNS yan\u0131tlar\u0131 daha h\u0131zl\u0131 sunulabilir, b\u00f6ylece gecikme s\u00fcresi azalt\u0131larak kullan\u0131c\u0131 deneyimi iyile\u015ftirilir.<\/li>\n<li><strong>Dinamik G\u00fcncellemeler<\/strong>: Daha d\u00fc\u015f\u00fck TTL de\u011ferleri, IP adresi de\u011fi\u015fiklikleri gibi DNS kay\u0131tlar\u0131ndaki de\u011fi\u015fikliklerin daha h\u0131zl\u0131 yay\u0131lmas\u0131n\u0131 sa\u011flar.<\/li>\n<\/ul>\n<h2>Farkl\u0131 DNS TTL T\u00fcrleri<\/h2>\n<p>DNS TTL de\u011ferleri, s\u00fcrelerine g\u00f6re kategorilere ayr\u0131labilir:<\/p>\n<table>\n<thead>\n<tr>\n<th>TTL S\u00fcresi<\/th>\n<th>Tip<\/th>\n<th>Kullan\u0131m \u00d6rne\u011fi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Y\u00fcksek (1 g\u00fcn)<\/td>\n<td>Uzun TTL<\/td>\n<td>S\u0131k s\u0131k de\u011fi\u015fiklik yap\u0131lmayan kararl\u0131 alanlar<\/td>\n<\/tr>\n<tr>\n<td>Orta (1 saat)<\/td>\n<td>Orta TTL<\/td>\n<td>Ara s\u0131ra de\u011fi\u015fiklik yap\u0131lan alanlar<\/td>\n<\/tr>\n<tr>\n<td>D\u00fc\u015f\u00fck (1 dakika)<\/td>\n<td>K\u0131sa TTL<\/td>\n<td>Son derece dinamik alanlar veya ge\u00e7ici y\u00f6nlendirmeler<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS TTL: Kullan\u0131m, Sorunlar ve \u00c7\u00f6z\u00fcmler<\/h2>\n<p>DNS TTL, sunucu y\u00fck\u00fcn\u00fc optimize etmede ve gecikmeyi azaltmada \u00e7ok \u00f6nemli bir rol oynar. Ancak yanl\u0131\u015f kullan\u0131m\u0131, DNS yay\u0131lma gecikmesi veya y\u00fcksek sunucu y\u00fck\u00fc gibi sorunlara yol a\u00e7abilir.<\/p>\n<p>\u00d6rne\u011fin, \u00e7ok d\u00fc\u015f\u00fck bir TTL ayarlamak, de\u011fi\u015fikliklerin h\u0131zl\u0131 bir \u015fekilde yay\u0131lmas\u0131n\u0131 sa\u011flar, ancak ayn\u0131 zamanda \u00f6nbelle\u011fe al\u0131nan giri\u015flerin s\u00fcresi daha s\u0131k doldu\u011fu i\u00e7in DNS sunucular\u0131nda daha fazla y\u00fck olu\u015fmas\u0131na da yol a\u00e7abilir. \u00d6te yandan \u00e7ok y\u00fcksek bir TTL, de\u011fi\u015fikliklerin daha yava\u015f yay\u0131lmas\u0131na yol a\u00e7abilir.<\/p>\n<p>Bir alan\u0131n \u00f6zel gereksinimlerine dayal\u0131 olarak bu iki u\u00e7 aras\u0131nda bir denge kurulmas\u0131 gerekir.<\/p>\n<h2>DNS TTL&#039;nin Kar\u015f\u0131la\u015ft\u0131rmalar\u0131 ve \u00d6zellikleri<\/h2>\n<p>DNS TTL&#039;yi di\u011fer sistemlerdeki benzer mekanizmalarla kar\u015f\u0131la\u015ft\u0131rma:<\/p>\n<table>\n<thead>\n<tr>\n<th>Mekanizma<\/th>\n<th>Sistem<\/th>\n<th>Ama\u00e7<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DNS TTL&#039;si<\/td>\n<td>DNS<\/td>\n<td>DNS \u00f6nbelle\u011finin \u00f6mr\u00fcn\u00fc kontrol eder<\/td>\n<\/tr>\n<tr>\n<td>HTTP \u00d6nbellek Kontrol\u00fc<\/td>\n<td>Web&#039;de Gezinme<\/td>\n<td>Taray\u0131c\u0131 \u00f6nbelle\u011fe alma politikas\u0131n\u0131 tan\u0131mlar<\/td>\n<\/tr>\n<tr>\n<td>TCP Zaman A\u015f\u0131m\u0131<\/td>\n<td>TCP\/IP<\/td>\n<td>TCP oturum \u00f6mr\u00fcn\u00fc kontrol eder<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DNS TTL: Gelecek Perspektifleri ve Teknolojileri<\/h2>\n<p>DNS TTL ile ilgili gelecekteki teknolojiler, TTL de\u011ferlerinin a\u011f ko\u015fullar\u0131na, kullan\u0131c\u0131 davran\u0131\u015f\u0131na veya di\u011fer parametrelere g\u00f6re dinamik olarak ayarlanabildi\u011fi uyarlanabilir TTL&#039;lere odaklanabilir. Bu, DNS \u00f6nbelle\u011fe alma ve genel internet performans\u0131 \u00fczerinde daha iyi kontrol sa\u011flayabilir.<\/p>\n<h2>Proxy Sunucular\u0131 ve DNS TTL<\/h2>\n<p>OneProxy gibi proxy sunucular\u0131, eri\u015ftikleri web sitelerinin etki alanlar\u0131n\u0131 \u00e7\u00f6z\u00fcmlemek i\u00e7in DNS kullan\u0131r. DNS TTL de\u011ferleri proxy sunucular\u0131n performans\u0131n\u0131 ve davran\u0131\u015f\u0131n\u0131 etkileyebilir. \u00d6rne\u011fin bir web sitesinin IP adresini de\u011fi\u015ftirmesi ve DNS TTL de\u011ferinin y\u00fcksek olmas\u0131 durumunda proxy sunucusu, TTL&#039;nin s\u00fcresi dolana kadar eski IP adresini kullanmaya devam edebilir ve bu durum proxy hizmetinde olas\u0131 kesintilere yol a\u00e7abilir.<\/p>\n<h2>\u0130lgili Ba\u011flant\u0131lar<\/h2>\n<p>DNS TTL&#039;yi daha fazla okumak ve anlamak i\u00e7in a\u015fa\u011f\u0131daki kaynaklar yararl\u0131 olabilir:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.oreilly.com\/library\/view\/dns-and-bind\/0596100574\/\" target=\"_new\" rel=\"noopener nofollow\">DNS ve BIND, 5. Bask\u0131, Cricket Liu ve Paul Albitz<\/a><\/li>\n<li><a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1035\" target=\"_new\" rel=\"noopener nofollow\">RFC 1035 (Alan Adlar\u0131 \u2013 Uygulama ve Belirtim)<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/dns\/dns-ttl\/\" target=\"_new\" rel=\"noopener nofollow\">DNS TTL&#039;si<\/a><\/li>\n<li><a href=\"https:\/\/ns1.com\/resources\/understanding-dns-ttl-values\" target=\"_new\" rel=\"noopener nofollow\">DNS TTL&#039;yi Anlamak<\/a><\/li>\n<\/ul>\n<p>Bu kapsaml\u0131 k\u0131lavuz, internetin i\u015fleyi\u015finin ayr\u0131lmaz bir par\u00e7as\u0131 olan DNS TTL&#039;nin net bir \u015fekilde anla\u015f\u0131lmas\u0131n\u0131 sa\u011flamay\u0131 ama\u00e7lamaktad\u0131r. Sunucu y\u00fcklerini y\u00f6netmeye, gecikmeyi azaltmaya yard\u0131mc\u0131 olur ve OneProxy gibi proxy sunucular\u0131 kullan\u0131rken dikkate al\u0131nmas\u0131 gereken \u00f6nemli bir husustur.<\/p>","protected":false},"featured_media":476946,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476945","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>DNS TTL: Unravelling the Mechanism of Domain Name System Time to Live<\/mark>","faq_items":null},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/476945","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/476945\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media\/476946"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media?parent=476945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}