{"id":1498,"date":"2025-11-07T18:49:47","date_gmt":"2025-11-07T15:49:47","guid":{"rendered":"https:\/\/www.dchost.com\/blog\/kucuk-bir-aaaa-kaydi-buyuk-bir-aydinlanma\/"},"modified":"2025-11-07T18:49:47","modified_gmt":"2025-11-07T15:49:47","slug":"kucuk-bir-aaaa-kaydi-buyuk-bir-aydinlanma","status":"publish","type":"post","link":"https:\/\/www.dchost.com\/blog\/kucuk-bir-aaaa-kaydi-buyuk-bir-aydinlanma\/","title":{"rendered":"K\u00fc\u00e7\u00fck Bir AAAA Kayd\u0131, B\u00fcy\u00fck Bir Ayd\u0131nlanma"},"content":{"rendered":"

{
\n “title”: “IPv6\u2019ye Ge\u00e7i\u015fin S\u0131cac\u0131k Yol Haritas\u0131: Dual\u2011Stack DNS, AAAA Kay\u0131tlar\u0131 ve Ger\u00e7ek D\u00fcnyada Test Etme”,
\n “content”: “<\/p>\n

Hi\u00e7 ba\u015f\u0131n\u0131za geldi mi? Ofiste sessiz sakin bir sabah, kahvenizi alm\u0131\u015fs\u0131n\u0131z, her \u015fey ray\u0131nda\u2026 Derken bir mesaj: ‘Baz\u0131 kullan\u0131c\u0131lar sitede yava\u015fl\u0131k ya\u015f\u0131yor.’ \u0130lk tepki hep ayn\u0131d\u0131r, sunucu mu s\u0131k\u0131\u015ft\u0131, CDN mi nazland\u0131, yoksa DNS taraf\u0131nda m\u0131 k\u00fc\u00e7\u00fck bir p\u00fcr\u00fcz var? O g\u00fcn ben de ayn\u0131 d\u00f6ng\u00fcden ge\u00e7tim. Sonra akl\u0131ma d\u00fc\u015fen \u015fu oldu: Ge\u00e7en hafta AAAA kayd\u0131n\u0131 a\u00e7m\u0131\u015ft\u0131m, belki de baz\u0131 a\u011flarda IPv6 yolu ta\u015fl\u0131d\u0131r, taray\u0131c\u0131lar \u00f6nce IPv6’y\u0131 deniyordur. Biraz iz s\u00fcr\u00fcnce mesele netle\u015fti: Dual\u2011stack’e ge\u00e7mi\u015f olman\u0131n avantajlar\u0131 k\u0131ymetliydi ama ger\u00e7ek d\u00fcnyada test etmeden d\u00fc\u011fmeye as\u0131l basmamak gerekiyordu.<\/p>\n

Bug\u00fcn, IPv6\u2019ye ge\u00e7i\u015f meselesini beraber, s\u0131cak bir sohbet e\u015fli\u011finde ele alal\u0131m istiyorum. Dual\u2011stack DNS mant\u0131\u011f\u0131n\u0131 konu\u015faca\u011f\u0131z, AAAA kay\u0131tlar\u0131n\u0131 nas\u0131l ve ne zaman a\u00e7man\u0131n mant\u0131kl\u0131 oldu\u011funa bakaca\u011f\u0131z. Nginx veya Apache\u2019ye dokunmadan \u00f6nce nelere g\u00f6z atmal\u0131, firewall ve loglarda neleri takip etmeli, onlar\u0131 payla\u015faca\u011f\u0131m. Sonra da i\u015fin en hayati k\u0131sm\u0131: Ger\u00e7ek d\u00fcnyada test etme. Kafede, evde, mobilde, kurumsal a\u011fda; k\u0131sacas\u0131 sitenizin kullan\u0131c\u0131lar\u0131n\u0131n ger\u00e7ekten oldu\u011fu yerlerde nas\u0131l emin ad\u0131mlarla ilerlenir, onu anlataca\u011f\u0131m. Hadi ba\u015flayal\u0131m, kahve benden.<\/p>\n

Dual\u2011Stack\u2019in Kalbi: DNS ve AAAA Kay\u0131tlar\u0131 Ne Zaman, Nas\u0131l?<\/h2>\n

IPv6\u2019ye ge\u00e7i\u015f deyince kula\u011fa sanki bir gecede b\u00fcy\u00fck bir g\u00f6\u00e7 yap\u0131lacakm\u0131\u015f gibi geliyor. Oysa i\u015fin s\u0131rr\u0131, IPv4\u2019\u00fc kapatmadan \u00f6nce ikisini yan yana, dost\u00e7a ko\u015fturmakta. Ad\u0131na dual\u2011stack diyoruz. Yani alan ad\u0131n\u0131z i\u00e7in A ve AAAA kay\u0131tlar\u0131 birlikte var oluyor. Taray\u0131c\u0131lar da ‘hangisi daha h\u0131zl\u0131ysa’ ona ko\u015fuyor. Pratikte, pek \u00e7ok kullan\u0131c\u0131 IPv6 \u00fczerinden gelecek, baz\u0131lar\u0131 IPv4\u2019le ba\u011flanacak. A\u011f ko\u015fullar\u0131, operat\u00f6r tercihleri, kurumsal politikalar derken o se\u00e7im kullan\u0131c\u0131ya g\u00f6re de\u011fi\u015fecek. Sizin yapman\u0131z gereken, her iki yolu da a\u00e7\u0131k tutmak ve DNS taraf\u0131n\u0131 sade, net, tutarl\u0131 y\u00f6netmek.<\/p>\n

Ben \u00f6nce alan ad\u0131m\u0131n k\u00f6k\u00fc ve kritik alt alan adlar\u0131 i\u00e7in AAAA kay\u0131tlar\u0131n\u0131 a\u00e7\u0131yorum. ‘www’, ‘api’, ‘cdn’ gibi trafi\u011fin as\u0131l akt\u0131\u011f\u0131 giri\u015f noktalar\u0131. TTL\u2019leri ba\u015fta nispeten k\u0131sa tutmak iyi geliyor. Diyelim 300 ya da 600 saniye; sorun \u00e7\u0131karsa h\u0131zl\u0131ca geri alabilmek i\u00e7in. Bir de kendi ad sunucular\u0131n\u0131za sahipseniz ve ‘ns1’ gibi bir kay\u0131t a\u00e7acaksan\u0131z, glue kay\u0131tlar\u0131 ve IPv6 adreslerini eksik etmeyin. Bu k\u0131s\u0131m \u00e7ok k\u0131ymetli, \u00e7\u00fcnk\u00fc \u00e7\u00f6z\u00fcmleme zincirinin en dibinde o kay\u0131tlar duruyor. Detay\u0131 daha \u00f6nce toparlam\u0131\u015ft\u0131m, isterseniz ad\u0131m ad\u0131m \u00f6zel ad sunucusu ve glue record kurulumunu bu rehberde<\/a> g\u00f6zden ge\u00e7irebilirsiniz.<\/p>\n

Bir de \u015fu s\u0131k soruluyor: ‘AAAA kayd\u0131 a\u00e7\u0131nca bir anda herkes IPv6\u2019dan gelmiyor mu?’ Hay\u0131r, i\u015fin g\u00fczel yan\u0131 bu. Kullan\u0131c\u0131n\u0131n cihaz\u0131, taray\u0131c\u0131s\u0131 ve bulundu\u011fu a\u011f ne destekliyorsa ona g\u00f6re ak\u0131yor trafik. Modern taray\u0131c\u0131lar, ba\u015fta IPv6\u2019y\u0131 yoklarken ayn\u0131 anda IPv4\u2019e de g\u00f6z k\u0131rp\u0131yor. H\u0131zl\u0131 olan kazan\u0131yor. Bu y\u00fczden dual\u2011stack bir anda d\u00fcnyay\u0131 tersy\u00fcz etmez; do\u011fru testlerle \u00e7ok g\u00fcvenli bir ge\u00e7i\u015f yoludur.<\/p>\n

K\u00fc\u00e7\u00fck bir b\u00f6l\u00fcm\u00fc \u00f6rneklemek ho\u015f olur. Diyelim alan ad\u0131n\u0131z example.com. Alan ad\u0131n\u0131z\u0131n DNS b\u00f6lgesinde \u015fu tarz bir ak\u0131\u015f g\u00f6rebilirsiniz:<\/p>\n

; example.com zone\n@     600  IN  A     192.0.2.10\n@     600  IN  AAAA  2001:db8:abcd::10\nwww   600  IN  A     192.0.2.10\nwww   600  IN  AAAA  2001:db8:abcd::10\napi   300  IN  A     192.0.2.20\napi   300  IN  AAAA  2001:db8:abcd::20\n<\/code><\/pre>\n
Bu arada ters DNS (PTR) konusu da posta sunucular\u0131 i\u00e7in \u00f6nemli. Web taraf\u0131nda kritik de\u011fildir ama e\u2011posta g\u00f6nderiyorsan\u0131z IPv6 PTR\u2019\u0131n da tutarl\u0131 oldu\u011fundan emin olun. Baz\u0131 e\u2011posta sa\u011flay\u0131c\u0131lar\u0131, yeni IPv6 aral\u0131klar\u0131ndan gelen postalar\u0131 daha s\u0131k\u0131 s\u00fczebiliyor; ge\u00e7i\u015fin ilk g\u00fcnlerinde, outbound mail\u2019i IPv4\u2019te tutmak bazen yeni ba\u015flayanlar i\u00e7in daha rahat oluyor. Bu bir zorunluluk de\u011fil, daha \u00e7ok pratik bir not.<\/p>\n
Sunucu Cephesi: Nginx\/Apache, Firewall ve Loglar\u0131n Dili<\/h2>\n
DNS\u2019i konu\u015fturduk, s\u0131ra sunucuya geldi mi ilk durak a\u011f yap\u0131land\u0131rmas\u0131. Sa\u011flay\u0131c\u0131n\u0131z size en az bir IPv6 adresi verir. Kimi zaman bir \/64 a\u011f da a\u00e7\u0131lm\u0131\u015f olur. Bu k\u0131sm\u0131 panelden eklemek kolay, bazen de i\u015fletim sistemi taraf\u0131n\u0131 elle beslemek gerekir. Interface\u2019e IPv6\u2019y\u0131 ekledikten sonra ‘ping6’ ya da ‘ping -6’ ile d\u0131\u015far\u0131y\u0131 yoklamak adetim. Sonra firewall\u2019a bak\u0131yorum; 80 ve 443 trafi\u011finin IPv6 taraf\u0131nda da a\u00e7\u0131k oldu\u011fundan emin olmak yetiyor. Ufw kullan\u0131yorsan\u0131z kurallar genellikle IPv4 ve IPv6\u2019y\u0131 bir arada kapsar, yine de ‘ufw status verbose’ ile \u00e7ift kontrol iyidir.<\/p>\n
Web sunucusunda yap\u0131lacaklar \u015fa\u015f\u0131rt\u0131c\u0131 derecede basit. Nginx taraf\u0131nda \u015funa benzer bir yap\u0131 bana g\u00fcven veriyor:<\/p>\n
server {\n    listen 80;\n    listen [::]:80;\n\n    listen 443 ssl http2;\n    listen [::]:443 ssl http2;\n\n    server_name example.com www.example.com;\n\n    # Burada TLS ayarlar\u0131, sertifikalar, vs.\n    # ssl_certificate ...;\n    # ssl_certificate_key ...;\n\n    location \/ {\n        proxy_pass http:\/\/127.0.0.1:8080;\n    }\n}\n<\/code><\/pre>\n
Bu noktada performans ve g\u00fcvenli\u011fe dokunmak isterseniz, HTTP\/2 ve hatta HTTP\/3 taraf\u0131n\u0131 a\u00e7man\u0131n da yolu var. Bunu yaparken a\u011f y\u0131\u011f\u0131n\u0131n\u0131zdaki IPv6\u2019y\u0131 da hesaba katmak g\u00fczel olur. G\u00fcn\u00fcn sonunda ziyaret\u00e7i i\u00e7in deneyimi h\u0131zland\u0131r\u0131r. Detay\u0131 Nginx ve Cloudflare\u2019da HTTP\/2 ve HTTP\/3 (QUIC) rehberinde<\/a> ad\u0131m ad\u0131m anlatm\u0131\u015ft\u0131m. Bir de TLS 1.3 taraf\u0131nda k\u00fc\u00e7\u00fck dokunu\u015flar\u0131n\u0131z varsa, IPv6 \u00fczerinde de ayn\u0131 p\u00fcr\u00fczs\u00fczl\u00fc\u011f\u00fc g\u00f6rmek i\u00e7in h\u0131zl\u0131 ve g\u00fcvenli HTTPS rehberindeki \u00f6nerileri<\/a> yan\u0131n\u0131za al\u0131n. \u0130kisi birlikte \u00e7ok sa\u011flam bir temel at\u0131yor.<\/p>\n
Gelelim loglar ve g\u00f6zlemlemeye. IPv6 adresleri uzun, evet, ama d\u00fczenli kal\u0131plarla okumak kolayla\u015f\u0131yor. Access log\u2019da hem IPv4 hem IPv6 isabetlerini g\u00f6rmek, ge\u00e7i\u015fin sa\u011fl\u0131\u011f\u0131n\u0131 anlamada harika bir g\u00f6sterge. Belki k\u0131sa bir s\u00fcre ‘geoip’ ya da benzeri bir \u00e7\u00f6z\u00fcmle v6 trafi\u011finin nereden geldi\u011fini izlersiniz; \u00e7o\u011fu zaman mobil a\u011flardan artan bir ak\u0131\u015f g\u00f6r\u00fcrs\u00fcn\u00fcz. E\u011fer bir CDN arkas\u0131ndaysan\u0131z, ger\u00e7ek istemci IP\u2019sini do\u011fru devretmek i\u00e7in proxy ba\u015fl\u0131klar\u0131n\u0131 IPv6 ile uyumlu tuttu\u011funuzdan emin olun. Cloudflare, Fastly ya da benzeri bir CDN kullan\u0131yorsan\u0131z, ‘real IP’ ayarlar\u0131n\u0131n v6\u2019y\u0131 da kapsamas\u0131 gerekiyor.<\/p>\n
Ger\u00e7ek D\u00fcnyada Uyum Testleri: Kafede, Evde, Kurumsalda<\/h2>\n
Bir yap\u0131 lokalde kusursuz g\u00f6r\u00fcnebilir ama kullan\u0131c\u0131lar\u0131n\u0131z\u0131n oldu\u011fu a\u011flarda bamba\u015fka davranabilir. Ben testleri hep k\u00fc\u00e7\u00fck bir rota gibi planlar\u0131m. \u00d6nce mobil a\u011fda bakar\u0131m. Bir cep telefonunun h\u00fccresel verisi \u00e7o\u011fu zaman IPv6\u2019y\u0131 erkenden dener; o y\u00fczden ger\u00e7ek kullan\u0131c\u0131lar\u0131n aya\u011f\u0131na en yak\u0131n laboratuvar gibidir. Sonra ev internetimden yoklar\u0131m, \u00f6zellikle CGNAT kullanan ba\u011flant\u0131lar bazen farkl\u0131 s\u00fcrprizler \u00e7\u0131kar\u0131r. Bir de m\u00fcmk\u00fcnse kurumsal bir a\u011fdan bakmak, proxy ve g\u00fcvenlik cihazlar\u0131n\u0131n davran\u0131\u015flar\u0131n\u0131 g\u00f6rmenizi sa\u011flar. Hepsi k\u00fc\u00e7\u00fck, g\u00fcnl\u00fck hayatta eri\u015febilece\u011finiz ad\u0131mlar.<\/p>\n
Komut sat\u0131r\u0131yla h\u0131zl\u0131 testler i\u00e7in \u015funlar\u0131n yeri ayr\u0131:<\/p>\n
# AAAA kay\u0131tlar\u0131n\u0131 g\u00f6r\ndig AAAA example.com +short\n\n# IPv6 \u00fczerinden HTTP ba\u015fl\u0131klar\u0131n\u0131 \u00e7ek\ncurl -6 -I https:\/\/example.com\n\n# Temel eri\u015filebilirlik\nping -6 example.com\n<\/code><\/pre>\n
Taray\u0131c\u0131 taraf\u0131nda ise ‘bu a\u011f beni d\u00fcnyaya nas\u0131l g\u00f6steriyor’ demek i\u00e7in en pratik \u00e7\u00f6z\u00fcmlerden biri test-ipv6.com sayfas\u0131n\u0131 a\u00e7mak<\/a>. Dolayl\u0131 da olsa ‘Happy Eyeballs’ dedi\u011fimiz, taray\u0131c\u0131lar\u0131n ‘kim h\u0131zl\u0131ysa oradan devam edeyim’ davran\u0131\u015f\u0131n\u0131n nas\u0131l sonu\u00e7 verdi\u011fini g\u00f6zlemlemi\u015f olursunuz. E\u011fer \u00f6zel bir URL\u2019i do\u011frulamak isterseniz, IPv6 g\u00f6r\u00fcn\u00fcml\u00fc do\u011frulay\u0131c\u0131lar<\/a> da bazen h\u0131zl\u0131 fikir verir. Do\u011frudan site de\u011fil de TLS yenileme ve otomasyon taraf\u0131nda acaba IPv6 sorunsuz mu derseniz, Let\u2019s Encrypt\u2019in IPv6 deste\u011fi notlar\u0131<\/a> da i\u00e7inize su serper.<\/p>\n
Bu arada, IPv6\u2011only ortamlara da ucundan ben de\u011fmek isterim. Baz\u0131 sa\u011flay\u0131c\u0131lar tamamen IPv6\u2019l\u0131 VPS<\/a>\u2019ler sunuyor, IPv4 d\u00fcnyas\u0131na NAT64\/DNS64 gibi k\u00f6pr\u00fclerle uzan\u0131yorsunuz. Bu kulvarda y\u00fcr\u00fcyecekseniz, DNS \u00e7\u00f6z\u00fcmlemesini ve d\u0131\u015f eri\u015fimleri nas\u0131l k\u00f6pr\u00fcledi\u011finizi netle\u015ftirmek gerekir. Merak edenler i\u00e7in IPv6\u2011only bir VPS \u00fczerinde NAT64\/DNS64 ile k\u00f6pr\u00fc kurma hikayesini<\/a> ayr\u0131 ele alm\u0131\u015ft\u0131m. Dual\u2011stack\u2019ten farkl\u0131 bir oyun bah\u00e7esi ama mant\u0131k g\u00fczel oturdu\u011funda s\u00fcrprizsiz gider.<\/p>\n
Ger\u00e7ek d\u00fcnyadaki testlerin bir ba\u015fka faydas\u0131, k\u00fc\u00e7\u00fck kenar durumlar\u0131n\u0131 yakalamak. Mesela baz\u0131 kurumsal g\u00fcvenlik \u00fcr\u00fcnleri, yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015fsa, AAAA kay\u0131tl\u0131 ama IPv6\u2019dan cevap vermeyen endpoint\u2019lere daha agresif zaman a\u015f\u0131m\u0131 uygulayabiliyor. Ayn\u0131 \u015fekilde, CDN arkas\u0131nda alt alan ad\u0131 IPv6\u2019y\u0131 kapat\u0131rken ana alan a\u00e7\u0131k kal\u0131rsa, beklenmedik ba\u011flant\u0131 rotalar\u0131 olu\u015fabiliyor. Bu nedenle ‘k\u00fc\u00e7\u00fck ad\u0131mlarla a\u00e7, \u00f6l\u00e7, sonra b\u00fcy\u00fct’ yakla\u015f\u0131m\u0131 burada alt\u0131n kural.<\/p>\n
Yol Haritas\u0131: G\u00fcvenle A\u00e7, Sorun \u00c7\u0131karsa Zarif\u00e7e Geri D\u00f6n<\/h2>\n
Benim denedi\u011fim ve rahat etti\u011fim yol hep ayn\u0131. \u00d6nce sahte bir alan ad\u0131 ya da test alt alan\u0131 \u00fczerinde dual\u2011stack\u2019i \u00e7al\u0131\u015ft\u0131r\u0131yorum. \u00dcretim ak\u0131\u015f\u0131n\u0131 etkilemeden b\u00fct\u00fcn ta\u015flar\u0131 dizerken insan\u0131n eli rahat oluyor. Sonra kritik olmayan bir alt alan i\u00e7in AAAA\u2019y\u0131 a\u00e7\u0131yorum; diyelim ‘static’ ya da ‘img’ gibi. CDN varsa burada ufak bir trafik dilimini IPv6\u2019ya y\u00f6nlendirip \u00f6l\u00e7\u00fcyorum. Her \u015fey yerli yerindeyse s\u0131ra ana siteye geliyor. TTL\u2019leri ba\u015fta k\u0131sa tutmak, bir terslikte dakikalar i\u00e7inde d\u00fczeltme yapabilmeyi sa\u011fl\u0131yor. B\u00fcy\u00fcl\u00fc bir his, \u00e7\u00fcnk\u00fc ‘ge\u00e7tim’ demek yerine ‘kontroll\u00fc \u015fekilde geni\u015flettim’ diyorsunuz.<\/p>\n
Bu s\u00fcrecin g\u00f6r\u00fcnmeyen kahraman\u0131 izleme. Dual\u2011stack a\u00e7\u0131ld\u0131ktan sonra IPv6 i\u00e7in ayr\u0131 u\u00e7tan uca kontrol eklemek, i\u00e7inizi rahatlat\u0131r. Ping de\u011fil, ger\u00e7ek HTTP kontrol\u00fc, idealde anahtar sayfan\u0131n 200 d\u00f6nmesi. K\u00fc\u00e7\u00fck bir js dosyas\u0131n\u0131n yan\u0131t s\u00fcresini izlemek de g\u00fczel bir fikir. Bizim tarafta bunu anlat\u0131rken Uptime Kuma ve Grafana ile basit alarm kurulumunu<\/a> \u00f6rneklemi\u015ftim; IPv6 endpoint\u2019i ayr\u0131 bir hedef olarak eklemek harika sonu\u00e7 veriyor. \u0130lk g\u00fcnlerde birka\u00e7 4xx veya 5xx \u00e7\u0131karsa, grafikte izlersiniz, logla do\u011frulars\u0131n\u0131z, sorunu nokta at\u0131\u015f\u0131 yakalars\u0131n\u0131z.<\/p>\n
G\u00fcvenlik taraf\u0131n\u0131 da es ge\u00e7meyelim. Firewall kurallar\u0131 tamam, ama uygulama katman\u0131nda IPv6\u2019dan gelen istekleri farkl\u0131 yorumlayan bir kural var m\u0131, bak\u0131n. WAF kullan\u0131yorsan\u0131z ve beyaz listeye ald\u0131\u011f\u0131n\u0131z bir kaynak IP varsa, onun IPv6 kar\u015f\u0131l\u0131\u011f\u0131na da g\u00f6z k\u0131rpmay\u0131 unutmay\u0131n. CDN \u00fczerinden TLS ayarlar\u0131n\u0131z\u0131 yaparken e\u011fer ‘modern’ profil kullan\u0131yorsan\u0131z, bunu IPv6 ba\u011flant\u0131lar\u0131 i\u00e7in de bire bir uygulamak iyi bir pratik. Cloudflare kullan\u0131yorsan\u0131z, a\u011f sekmesinde IPv6\u2019n\u0131n a\u00e7\u0131k oldu\u011funu do\u011frulamak ve QUIC ile birlikte test etmek performans alg\u0131s\u0131n\u0131 g\u00fc\u00e7lendirir. Bu ba\u015fl\u0131klar\u0131n \u00e7o\u011funu toparlarken TLS 1.3 ve modern \u015fifreler rehberindeki \u00f6neriler<\/a> yan\u0131mda dursun istiyorum; s\u00fcrprizlere kar\u015f\u0131 g\u00fczel bir kalkan.<\/p>\n
Son bir k\u00fc\u00e7\u00fck numara da geri d\u00f6n\u00fc\u015f plan\u0131. AAAA\u2019y\u0131 a\u00e7t\u0131n\u0131z ve beklenmedik bir a\u011f par\u00e7as\u0131 kullan\u0131c\u0131lar\u0131n\u0131z\u0131n bir b\u00f6l\u00fcm\u00fcnde dert \u00e7\u0131kard\u0131 diyelim. Yapaca\u011f\u0131n\u0131z \u015fey \u00e7ok net: AAAA kayd\u0131n\u0131 kald\u0131r\u0131n, TTL\u2019nin dolmas\u0131n\u0131 beklerken CDN \u00fczerinde IPv6\u2019y\u0131 ge\u00e7ici kapat\u0131n, ak\u0131\u015f\u0131n\u0131z IPv4\u2019te akmaya devam ederken te\u015fhise odaklan\u0131n. Bu, ‘panik butonu’ gibi dursun. \u00c7o\u011fu zaman gerekmez, ama var oldu\u011funu bilmek bile karar vermeyi kolayla\u015ft\u0131r\u0131r.<\/p>\n
Kapan\u0131\u015f: IPv6 Dalgas\u0131 K\u0131y\u0131n\u0131za Nazik\u00e7e Vursun<\/h2>\n
Toparlayal\u0131m. IPv6\u2019ye ge\u00e7i\u015f bir maraton de\u011fil, ritmi olan bir y\u00fcr\u00fcy\u00fc\u015f gibi. Dual\u2011stack ile ba\u015flamak hem g\u00fcvenli hem de ger\u00e7ek\u00e7i. DNS taraf\u0131nda AAAA kay\u0131tlar\u0131n\u0131 dikkatle a\u00e7\u0131p k\u0131sa TTL\u2019lerle ba\u015flay\u0131nca kontrol sizde oluyor. Sunucu taraf\u0131nda Nginx ya da Apache\u2019yi IPv6\u2019y\u0131 dinleyecek \u015fekilde ayarlamak birka\u00e7 sat\u0131rl\u0131k i\u015f. Firewall ve loglar g\u00f6z\u00fcn\u00fcz\u00fcn \u00f6n\u00fcnde olursa, kalan her \u015fey daha sakin ak\u0131yor. En kritik ad\u0131m\u0131n test oldu\u011funu s\u00f6yleyip durdum; \u00e7\u00fcnk\u00fc kafede, evde, mobilde bakmadan ‘tamamd\u0131r’ demek, bana hep eksik gelmi\u015ftir. Basit curl ve dig komutlar\u0131, taray\u0131c\u0131 test sayfalar\u0131 ve k\u00fc\u00e7\u00fck bir izleme kurgusu ile bu i\u015f \u00e7ok daha az stresli hale geliyor.<\/p>\n
\u0130\u015fin g\u00fczel yan\u0131, bu ge\u00e7i\u015f s\u0131ras\u0131nda performans ve g\u00fcvenlik gibi konulara da dokunabiliyor olman\u0131z. HTTP\/2, HTTP\/3, TLS 1.3 gibi kap\u0131lar\u0131 a\u00e7arken, a\u011f\u0131n gelece\u011fine ayak uydurmak moral veriyor. E\u011fer daha ileri ad\u0131mlar d\u00fc\u015f\u00fcn\u00fcrseniz, IPv6\u2011only d\u00fcnyas\u0131na k\u00f6pr\u00fc kurmak ya da \u00f6zel ad sunucular\u0131n\u0131z\u0131 IPv6\u2019ya ta\u015f\u0131mak gibi ba\u015fl\u0131klar i\u00e7in payla\u015ft\u0131\u011f\u0131m rehberler elinizin alt\u0131nda. T\u00fcm bu yolculukta en \u00e7ok i\u015fe yarayan \u015fey ise sakin kalmak, k\u00fc\u00e7\u00fck ad\u0131mlarla ilerlemek ve \u00f6l\u00e7mek oldu. Umar\u0131m bu yaz\u0131, sizde de ayn\u0131 g\u00fcven duygusunu uyand\u0131r\u0131r. Sorular\u0131n\u0131z olursa yorumlara b\u0131rak\u0131n, birlikte bakal\u0131m. Bir dahaki yaz\u0131da g\u00f6r\u00fc\u015fmek \u00fczere; IPv6 dalgas\u0131 k\u0131y\u0131n\u0131za nazik\u00e7e vursun, siz de keyfini s\u00fcr\u00fcn.<\/p>\n
“,
\n  “focus_keyword”: “IPv6\u2019ye ge\u00e7i\u015f”,
\n  “meta_description”: “IPv6\u2019ye ge\u00e7i\u015fi dual\u2011stack DNS ve AAAA kay\u0131tlar\u0131yla, ger\u00e7ek d\u00fcnyada uyumluluk testleri ve pratik ipu\u00e7lar\u0131yla ad\u0131m ad\u0131m anlat\u0131yorum; g\u00fcvenle ilerleyin.”,
\n  “faqs”: [
\n    {
\n      “question”: “AAAA kayd\u0131 eklersem siteye eri\u015fim bozulur mu?”,
\n      “answer”: “Genelde hay\u0131r. Dual\u2011stack\u2019te A ve AAAA yan yana \u00e7al\u0131\u015f\u0131r. Taray\u0131c\u0131lar h\u0131zl\u0131 olan yolu se\u00e7er. Ba\u015fta k\u0131sa TTL\u2019lerle a\u00e7\u0131p ger\u00e7ek d\u00fcnyada test ederseniz risk iyice azal\u0131r.”
\n    },
\n    {
\n      “question”: “IPv6 adresini nereden al\u0131r\u0131m ve tek IP yeterli mi?”,
\n      “answer”: “VPS ya da bar\u0131nd\u0131rma sa\u011flay\u0131c\u0131n\u0131z IPv6 adresini verir. \u00c7o\u011fu senaryoda tek IPv6 adresi web i\u00e7in yeterlidir. Sa\u011flay\u0131c\u0131dan bir \/64 a\u011f da alabiliyorsan\u0131z ileride esneklik sa\u011flar.”
\n    },
\n    {
\n      “question”: “Ger\u00e7ek d\u00fcnyada testi nas\u0131l yapmal\u0131y\u0131m, hangi ara\u00e7larla?”,
\n      “answer”: “Mobil a\u011f, ev interneti ve m\u00fcmk\u00fcnse kurumsal bir ba\u011flant\u0131dan bak\u0131n. Komut sat\u0131r\u0131nda dig ve curl \u20116 i\u015f g\u00f6r\u00fcr. Taray\u0131c\u0131dan test\u2011ipv6.com gibi sayfalar da h\u0131zl\u0131 fikir verir.”
\n    }
\n  ]
\n}<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"
{ “title”: “IPv6\u2019ye Ge\u00e7i\u015fin S\u0131cac\u0131k Yol Haritas\u0131: Dual\u2011Stack DNS, AAAA Kay\u0131tlar\u0131 ve Ger\u00e7ek D\u00fcnyada Test Etme”, “content”: “ Hi\u00e7 ba\u015f\u0131n\u0131za geldi mi? Ofiste sessiz sakin bir sabah, kahvenizi alm\u0131\u015fs\u0131n\u0131z, her \u015fey ray\u0131nda\u2026 Derken bir mesaj: ‘Baz\u0131 kullan\u0131c\u0131lar sitede yava\u015fl\u0131k ya\u015f\u0131yor.’ \u0130lk tepki hep ayn\u0131d\u0131r, sunucu mu s\u0131k\u0131\u015ft\u0131, CDN mi nazland\u0131, yoksa DNS taraf\u0131nda m\u0131 k\u00fc\u00e7\u00fck […]<\/p>\n","protected":false},"author":1,"featured_media":1499,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-1498","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts\/1498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/comments?post=1498"}],"version-history":[{"count":0,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts\/1498\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/media\/1499"}],"wp:attachment":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/media?parent=1498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/categories?post=1498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/tags?post=1498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}