{"id":902,"date":"2025-06-05T09:11:40","date_gmt":"2025-06-05T06:11:40","guid":{"rendered":"https:\/\/verimin.com.tr\/blog\/?p=902"},"modified":"2026-06-04T10:58:27","modified_gmt":"2026-06-04T07:58:27","slug":"error-ne-demek-error-uyarilari","status":"publish","type":"post","link":"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/","title":{"rendered":"Error Ne Demek? En \u00c7ok G\u00f6r\u00fclen Error Uyar\u0131lar\u0131 ve Nedenleri"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 ez-toc-wrap-left counter-flat ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7erik Ba\u015fl\u0131klar\u0131:<\/div>\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'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#Error_Nedir\" title=\"Error Nedir?\u00a0\">Error Nedir?\u00a0<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#En_Sik_Karsilasilan_Error_Uyarilari_Nelerdir\" title=\"En S\u0131k Kar\u015f\u0131la\u015f\u0131lan Error Uyar\u0131lar\u0131 Nelerdir?\">En S\u0131k Kar\u015f\u0131la\u015f\u0131lan Error Uyar\u0131lar\u0131 Nelerdir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#401_Unauthorized_Nedir\" title=\"401 Unauthorized Nedir?\">401 Unauthorized Nedir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#403_Forbidden_Nedir\" title=\"403 Forbidden Nedir?\">403 Forbidden Nedir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#404_Not_Found_Nedir\" title=\"404 Not Found Nedir?\">404 Not Found Nedir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#502_Bad_Gateway_Nedir\" title=\"502 Bad Gateway Nedir?\">502 Bad Gateway Nedir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#500_Internal_Server_Error_Nedir\" title=\"500 Internal Server Error Nedir?\">500 Internal Server Error Nedir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#503_Service_Unavailable_Nedir\" title=\"503 Service Unavailable Nedir?\">503 Service Unavailable Nedir?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/verimin.com.tr\/blog\/error-ne-demek-error-uyarilari\/#Error_Uyarilari_Duzeltme_Yollari_Nelerdir\" title=\"Error Uyar\u0131lar\u0131 D\u00fczeltme Yollar\u0131 Nelerdir?\">Error Uyar\u0131lar\u0131 D\u00fczeltme Yollar\u0131 Nelerdir?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Error_Nedir\"><\/span><strong>Error Nedir?\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Dijitalle\u015fmeyle birlikte hayat\u0131m\u0131za giren en \u00f6nemli sorulardan biri de <\/span><b>error ne demek<\/b><span style=\"font-weight: 400;\">? \u015feklinde kar\u015f\u0131m\u0131za \u00e7\u0131kmaktad\u0131r. Bilgisayar sistemlerinde ve \u00f6zellikle web uygulamalar\u0131nda \u201cerror\u201d terimi, bir program\u0131n ya da sistemin beklenen \u015fekilde \u00e7al\u0131\u015fmamas\u0131 durumunu ifade eder. <\/span><b>Network error hatas\u0131<\/b><span style=\"font-weight: 400;\"> gibi hatalar, kullan\u0131c\u0131dan kaynakl\u0131 olabilece\u011fi gibi sunucu tarafl\u0131 veya sistemsel nedenlerle de ortaya \u00e7\u0131kabilir.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Yaz\u0131l\u0131m geli\u015ftirme, sistem y\u00f6netimi ve internet kullan\u0131m\u0131 gibi bir\u00e7ok alanda kar\u015f\u0131la\u015f\u0131lan bu hata mesajlar\u0131, genellikle bir i\u015flemin neden tamamlanamad\u0131\u011f\u0131n\u0131 belirtir ve genellikle say\u0131larla kodlanarak sunulur. Bu hata kodlar\u0131 ise teknik ekiplerin problemi h\u0131zl\u0131ca tan\u0131mas\u0131n\u0131 ve \u00e7\u00f6zmesini sa\u011flar.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bir hata meydana geldi\u011finde, sistem kullan\u0131c\u0131n\u0131n ger\u00e7ekle\u015ftirmek istedi\u011fi i\u015flemi tamamlayamaz. Bu durum, \u00f6rne\u011fin bir web sitesine eri\u015fmeye \u00e7al\u0131\u015f\u0131rken yanl\u0131\u015f bir ba\u011flant\u0131ya t\u0131klanmas\u0131, ge\u00e7ersiz oturum bilgilerinin girilmesi veya kullan\u0131c\u0131ya izin verilmeyen bir kayna\u011fa ula\u015f\u0131lmaya \u00e7al\u0131\u015f\u0131lmas\u0131 gibi bir\u00e7ok senaryo sonucunda olu\u015fabilir. Dolay\u0131s\u0131yla hatalar hem kullan\u0131c\u0131 deneyimini hem de sistemin g\u00fcvenli\u011fini do\u011frudan etkileyebilir.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"En_Sik_Karsilasilan_Error_Uyarilari_Nelerdir\"><\/span><strong>En S\u0131k Kar\u015f\u0131la\u015f\u0131lan Error Uyar\u0131lar\u0131 Nelerdir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Web d\u00fcnyas\u0131nda en s\u0131k kar\u015f\u0131la\u015f\u0131lan ve <\/span><b>error nedir<\/b><span style=\"font-weight: 400;\">? sorular\u0131n\u0131n ara\u015ft\u0131r\u0131lmas\u0131na neden olan hata mesajlar\u0131 HTTP durum kodlar\u0131d\u0131r. Bu kodlar, k\u0131sacas\u0131 istemci ile sunucu aras\u0131ndaki ileti\u015fimin sonucunu \u00f6zetlemektedir. \u00d6rne\u011fin, 400 ile ba\u015flayan hata kodlar\u0131 istemci tarafl\u0131 hatalar\u0131, 500 ile ba\u015flayanlar ise sunucu tarafl\u0131 hatalar\u0131 g\u00f6sterir.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu nedenle, \u0130nternet ortam\u0131n\u0131n \u00f6nc\u00fc sunucu sa\u011flay\u0131c\u0131lar\u0131ndan olan <a href=\"https:\/\/verimin.com.tr\/\">Verimin<\/a> olarak a\u015fa\u011f\u0131da en yayg\u0131n error kodlar\u0131ndan baz\u0131lar\u0131n\u0131 a\u00e7\u0131klamakta ve kullan\u0131c\u0131lar taraf\u0131ndan yayg\u0131n olarak sorulan <\/span><b>server error ne demek<\/b><span style=\"font-weight: 400;\"> gibi sorular\u0131 cevaplamay\u0131 ama\u00e7lamaktay\u0131z.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"401_Unauthorized_Nedir\"><\/span><strong>401 Unauthorized Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-904 size-full\" src=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/401.png\" alt=\"\" width=\"605\" height=\"178\" srcset=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/401.png 605w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/401-300x88.png 300w\" sizes=\"auto, (max-width: 605px) 100vw, 605px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u201c401 Unauthorized\u201d hata kodu, kullan\u0131c\u0131n\u0131n eri\u015fmeye \u00e7al\u0131\u015ft\u0131\u011f\u0131 kayna\u011fa kimlik do\u011frulamas\u0131 yapmadan ula\u015fmaya \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ya da yapt\u0131\u011f\u0131 do\u011frulaman\u0131n ba\u015far\u0131s\u0131z oldu\u011funu belirtir. Bu durum, genellikle oturum a\u00e7ma gerektiren bir sayfaya giri\u015f yap\u0131lmadan eri\u015filmek istendi\u011finde g\u00f6r\u00fcl\u00fcr. Sunucu, kullan\u0131c\u0131n\u0131n kim oldu\u011funu do\u011frulayamad\u0131\u011f\u0131 i\u00e7in iste\u011fi reddeder.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu hata, sistemin g\u00fcvenlik protokollerinin bir par\u00e7as\u0131d\u0131r ve yetkisiz eri\u015fimleri engellemeyi ama\u00e7lar. Genellikle bir \u201cWWW-Authenticate\u201d ba\u015fl\u0131\u011f\u0131yla birlikte gelir; bu ba\u015fl\u0131k, istemcinin hangi t\u00fcr kimlik do\u011frulama bilgilerini g\u00f6ndermesi gerekti\u011fini belirtir. \u00d6rne\u011fin, API\u2019lere yap\u0131lan isteklerde eksik ya da yanl\u0131\u015f bir \u201ctoken\u201d kullan\u0131ld\u0131\u011f\u0131nda da 401 hatas\u0131 al\u0131nabilir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kullan\u0131c\u0131 a\u00e7\u0131s\u0131ndan \u00e7\u00f6z\u00fcm, do\u011fru kimlik bilgileriyle sisteme giri\u015f yapmak veya gerekli eri\u015fim izinlerine sahip oldu\u011fundan emin olmakt\u0131r. Yaz\u0131l\u0131mc\u0131lar i\u00e7in ise, bu hata uygulamada oturum y\u00f6netimi, \u015fifreleme ve kimlik do\u011frulama i\u015flemlerinin do\u011fru \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmad\u0131\u011f\u0131n\u0131 test etmeye yarayan \u00f6nemli bir i\u015farettir.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"403_Forbidden_Nedir\"><\/span><strong>403 Forbidden Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-905 size-full\" src=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/403-forbidden.png\" alt=\"\" width=\"511\" height=\"273\" srcset=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/403-forbidden.png 511w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/403-forbidden-300x160.png 300w\" sizes=\"auto, (max-width: 511px) 100vw, 511px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u201c403 Forbidden\u201d hata kodu, sunucunun iste\u011fi anlad\u0131\u011f\u0131 fakat istemciye kayna\u011fa eri\u015fim izni vermedi\u011fi durumlar\u0131 ifade eder. Bu hata, kullan\u0131c\u0131 do\u011fru bir \u015fekilde kimlik do\u011frulamas\u0131 yapm\u0131\u015f olsa bile, s\u00f6z konusu kayna\u011fa eri\u015fim yetkisinin bulunmamas\u0131 durumunda ortaya \u00e7\u0131kmaktad\u0131r.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rne\u011fin, bir web sitesi y\u00f6neticisi yaln\u0131zca belirli kullan\u0131c\u0131 gruplar\u0131na \u00f6zel bir sayfa olu\u015fturmu\u015fsa ve ba\u015fka bir kullan\u0131c\u0131 bu sayfaya eri\u015fmeye \u00e7al\u0131\u015f\u0131rsa 403 hatas\u0131 al\u0131r. Sunucu bu durumda kullan\u0131c\u0131ya, \u201cSeni tan\u0131yorum ama buraya girme yetkin yok\u201d anlam\u0131nda bir cevap verir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu hata ayn\u0131 zamanda yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f dosya izinlerinden de kaynaklanabilir. \u00d6rne\u011fin, bir dizine t\u00fcm eri\u015fimler sunucu taraf\u0131ndan yasaklanm\u0131\u015fsa herkes bu hatayla kar\u015f\u0131la\u015f\u0131r. Geli\u015ftiriciler i\u00e7in bu, dosya izinlerinin ve kullan\u0131c\u0131 rollerinin dikkatlice kontrol edilmesi gerekti\u011fi anlam\u0131na gelir. 403 hatas\u0131, g\u00fcvenlik a\u00e7\u0131s\u0131ndan 401\u2019e g\u00f6re daha kat\u0131d\u0131r. \u00c7\u00fcnk\u00fc kullan\u0131c\u0131ya daha fazla bilgi verilmeksizin eri\u015fim tamamen engellenir.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"404_Not_Found_Nedir\"><\/span><strong>404 Not Found Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-906 size-full\" src=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/404.webp\" alt=\"\" width=\"840\" height=\"460\" srcset=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/404.webp 840w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/404-300x164.webp 300w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/404-768x421.webp 768w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Ku\u015fkusuz bu kod, web d\u00fcnyas\u0131nda en s\u0131k kar\u015f\u0131la\u015f\u0131lan hata kodlar\u0131ndan biridir. Bu hata, kullan\u0131c\u0131n\u0131n talep etti\u011fi kayna\u011f\u0131n (\u00f6rne\u011fin bir web sayfas\u0131n\u0131n) sunucuda bulunmad\u0131\u011f\u0131n\u0131 belirtir. Sunucu, kullan\u0131c\u0131n\u0131n iste\u011fini al\u0131r ve i\u015fler, fakat bu istekle e\u015fle\u015fen bir dosya, sayfa ya da veri bulunamad\u0131\u011f\u0131nda 404 hatas\u0131 d\u00f6nd\u00fcr\u00fcl\u00fcr.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu hata genellikle a\u015fa\u011f\u0131daki nedenlerden kaynaklan\u0131r:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Yanl\u0131\u015f ya da bozuk bir URL girilmesi<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Web sitesindeki bir sayfan\u0131n kald\u0131r\u0131lm\u0131\u015f ya da ta\u015f\u0131nm\u0131\u015f olmas\u0131<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Hatal\u0131 ba\u011flant\u0131lar (broken links)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Alan ad\u0131nda yap\u0131lan de\u011fi\u015fiklikler<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0130\u00e7erik y\u00f6netim sistemi (CMS) ayarlar\u0131n\u0131n yanl\u0131\u015f yap\u0131land\u0131r\u0131lmas\u0131<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Kullan\u0131c\u0131 a\u00e7\u0131s\u0131ndan 404 hatas\u0131, sayfan\u0131n mevcut olmad\u0131\u011f\u0131n\u0131 ya da art\u0131k eri\u015filebilir olmad\u0131\u011f\u0131n\u0131 g\u00f6sterir. Ancak bu durum genellikle sistemsel bir sorun de\u011fil, i\u00e7erik taraf\u0131nda bir eksikliktir. Geli\u015ftiriciler ve site y\u00f6neticileri i\u00e7in bu hata, kullan\u0131c\u0131 deneyimini olumsuz etkileyebilece\u011finden olduk\u00e7a \u00f6nemlidir. Kullan\u0131c\u0131n\u0131n kar\u015f\u0131la\u015ft\u0131\u011f\u0131 404 sayfas\u0131, genellikle \u00f6zelle\u015ftirilerek kullan\u0131c\u0131n\u0131n sitede kalmas\u0131n\u0131 sa\u011flayacak ba\u011flant\u0131lar veya y\u00f6nlendirmelerle donat\u0131l\u0131r.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">SEO a\u00e7\u0131s\u0131ndan da 404 hatalar\u0131 kritik olabilmektedir. Arama motorlar\u0131, s\u0131k kar\u015f\u0131la\u015f\u0131lan 404 hatalar\u0131n\u0131 kullan\u0131c\u0131 deneyimi a\u00e7\u0131s\u0131ndan olumsuz de\u011ferlendirir. Bu nedenle hatal\u0131 ba\u011flant\u0131lar d\u00fczenli olarak tespit edilmeli ve uygun y\u00f6nlendirmeler yap\u0131lmal\u0131d\u0131r.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"502_Bad_Gateway_Nedir\"><\/span><strong>502 Bad Gateway Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-907 size-full\" src=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/502.png\" alt=\"\" width=\"812\" height=\"322\" srcset=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/502.png 812w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/502-300x119.png 300w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/502-768x305.png 768w\" sizes=\"auto, (max-width: 812px) 100vw, 812px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Bad Gateway hatas\u0131, bir sunucunun, ba\u015fka bir sunucudan ge\u00e7ersiz veya hatal\u0131 bir yan\u0131t ald\u0131\u011f\u0131n\u0131 g\u00f6steren bir HTTP hata kodudur. Bu hata genellikle ters proxy (reverse proxy) ya da a\u011f ge\u00e7idi (gateway) olarak \u00e7al\u0131\u015fan sunucularla ili\u015fkili olup, istemci ve hedef sunucu aras\u0131ndaki ara sunucudan kaynaklanmaktad\u0131r.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rnek bir senaryoyu a\u015fa\u011f\u0131daki \u015fekilde a\u00e7\u0131klayabiliriz:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kullan\u0131c\u0131 bir web sayfas\u0131n\u0131 ziyaret eder. Bu istek \u00f6nce bir ara sunucuya (\u00f6rne\u011fin bir y\u00fck dengeleyiciye ya da CDN\u2019e) gider. Ara sunucu bu iste\u011fi, arka u\u00e7taki as\u0131l sunucuya iletir. Ancak bu arka u\u00e7 sunucu \u00e7al\u0131\u015fm\u0131yorsa, yan\u0131t veremiyorsa ya da hatal\u0131 bir yan\u0131t g\u00f6nderirse, ara sunucu \u201c502 Bad Gateway\u201d hatas\u0131 d\u00f6nd\u00fcr\u00fcr.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu hatan\u0131n olas\u0131 nedenleri ise \u015funlard\u0131r:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Arka u\u00e7 sunucunun \u00e7\u00f6kmesi veya kapal\u0131 olmas\u0131<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sunucular aras\u0131 ileti\u015fim sorunlar\u0131 (\u00f6rne\u011fin DNS hatalar\u0131)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A\u015f\u0131r\u0131 sunucu y\u00fck\u00fc nedeniyle yava\u015f yan\u0131tlar<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ge\u00e7ici a\u011f problemleri<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f ters proxy sunucular\u0131<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Kullan\u0131c\u0131 a\u00e7\u0131s\u0131ndan bu hata genellikle ge\u00e7icidir. Sayfay\u0131 yeniden y\u00fcklemek veya k\u0131sa bir s\u00fcre sonra tekrar denemek sorunu \u00e7\u00f6zebilir. Ancak s\u0131k tekrarlanmas\u0131, sunucu altyap\u0131s\u0131nda daha b\u00fcy\u00fck bir sorun oldu\u011funu g\u00f6stermektedir. Bu nedenle geli\u015ftiriciler, log dosyalar\u0131n\u0131 inceleyerek hatan\u0131n hangi sunucu veya yap\u0131land\u0131rmadan kaynakland\u0131\u011f\u0131n\u0131 analiz etmeli ve gerekli d\u00fczeltmeleri yapmal\u0131d\u0131r.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"500_Internal_Server_Error_Nedir\"><\/span><strong>500 Internal Server Error Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-908 size-full\" src=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/500.webp\" alt=\"\" width=\"645\" height=\"424\" srcset=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/500.webp 645w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/500-300x197.webp 300w\" sizes=\"auto, (max-width: 645px) 100vw, 645px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">500 Internal Server Error hatas\u0131, en basit haliyle sunucunun beklenmeyen bir durumla kar\u015f\u0131la\u015ft\u0131\u011f\u0131n\u0131 ve iste\u011fi yerine getiremedi\u011fini g\u00f6sterir. Bu hata olduk\u00e7a genel bir uyar\u0131d\u0131r ve tam olarak neyin yanl\u0131\u015f gitti\u011fini belirtmez. Sunucu, iste\u011fi do\u011fru \u015fekilde ald\u0131\u011f\u0131n\u0131 fakat i\u015flem s\u0131ras\u0131nda bir i\u00e7 hata olu\u015ftu\u011funu bildirir.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Yaz\u0131l\u0131m hatalar\u0131, hatal\u0131 betikler (script), bozuk veritaban\u0131 ba\u011flant\u0131lar\u0131 veya sunucudaki yap\u0131land\u0131rma problemleri bu hatan\u0131n ba\u015fl\u0131ca nedenleri aras\u0131nda yer al\u0131r. Geli\u015ftiriciler a\u00e7\u0131s\u0131ndan bu hata, sistemdeki bir sorunun y\u00fczeydeki belirtisidir ve hata g\u00fcnl\u00fcklerinin (log dosyalar\u0131n\u0131n) incelenmesi gerekmektedir.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"503_Service_Unavailable_Nedir\"><\/span><strong>503 Service Unavailable Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-909 size-full\" src=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/503.webp\" alt=\"\" width=\"700\" height=\"374\" srcset=\"https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/503.webp 700w, https:\/\/verimin.com.tr\/blog\/wp-content\/uploads\/2025\/06\/503-300x160.webp 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u201c503 Service Unavailable\u201d hatas\u0131 ise sunucunun ge\u00e7ici olarak hizmet veremedi\u011fini g\u00f6sterir. Genellikle bak\u0131m \u00e7al\u0131\u015fmalar\u0131 s\u0131ras\u0131nda veya sunucu a\u015f\u0131r\u0131 y\u00fcklendi\u011finde ortaya \u00e7\u0131kmaktad\u0131r. S\u00f6z konusu hata, sunucunun ge\u00e7ici olarak \u00e7evrimd\u0131\u015f\u0131 oldu\u011funu ve daha sonra tekrar denenmesi gerekti\u011fini bildirmektedir.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ayr\u0131ca, Web siteleri veya API hizmetleri, bu hatay\u0131 kullanarak kullan\u0131c\u0131ya sistemin bilerek eri\u015fime kapal\u0131 oldu\u011funu bildirir. Sunucunun yo\u011fun trafik alt\u0131nda kalmas\u0131, uygulamalar\u0131n kaynaklar\u0131 t\u00fcketmesi veya sistem g\u00fcncellemeleri bu hatan\u0131n ba\u015fl\u0131ca nedenleri aras\u0131nda yer almaktad\u0131r.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Error_Uyarilari_Duzeltme_Yollari_Nelerdir\"><\/span><strong>Error Uyar\u0131lar\u0131 D\u00fczeltme Yollar\u0131 Nelerdir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Error uyar\u0131lar\u0131n\u0131 d\u00fczeltmek i\u00e7in ilk ad\u0131m, hatan\u0131n kayna\u011f\u0131n\u0131 do\u011fru analiz etmektir. Hangi hata kodunun verildi\u011fi, problemi tan\u0131mlamada \u00f6nemlidir. Geli\u015ftiriciler genellikle log dosyalar\u0131n\u0131 inceleyerek hatan\u0131n detaylar\u0131n\u0131 \u00f6\u011frenmektedir.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rne\u011fin, 400 serisi hatalarda, istemciden gelen isteklerin do\u011fru yap\u0131land\u0131r\u0131l\u0131p yap\u0131land\u0131r\u0131lmad\u0131\u011f\u0131 kontrol edilmelidir. \u00d6zellikle, yanl\u0131\u015f parametreler veya eksik kimlik do\u011frulama bilgileri d\u00fczenlenmelidir. 500 serisi hatalarda ise sunucu taraf\u0131ndaki kodlama, veritaban\u0131 ba\u011flant\u0131lar\u0131, eklentiler ve yap\u0131land\u0131rmalar g\u00f6zden ge\u00e7irilmelidir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sunucu bak\u0131m\u0131 ve sistem g\u00fcncellemeleri s\u0131ras\u0131nda kullan\u0131c\u0131lar\u0131n hata g\u00f6rmemesi i\u00e7in bak\u0131m modlar\u0131 veya ge\u00e7ici y\u00f6nlendirmeler (302 redirect) de kullan\u0131labilir. Ayr\u0131ca, hatalar\u0131n kullan\u0131c\u0131 deneyimini bozmamas\u0131 i\u00e7in \u00f6zel hata sayfalar\u0131 tasarlanmal\u0131 ve ziyaret\u00e7iye ne yapmas\u0131 gerekti\u011fi a\u00e7\u0131klanmal\u0131d\u0131r.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S\u00fcrekli tekrar eden hatalar varsa, sistem kaynaklar\u0131n\u0131n yeterlili\u011fi, g\u00fcvenlik duvar\u0131 ayarlar\u0131, CDN yap\u0131land\u0131rmalar\u0131 ve sunucu kapasitesi de g\u00f6zden ge\u00e7irilmelidir. Son olarak, yaz\u0131l\u0131m g\u00fcncellemeleri d\u00fczenli olarak yap\u0131lmas\u0131 ve g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n s\u00fcrekli test edilmesi de olduk\u00e7a \u00f6nemlidir.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Error Nedir?\u00a0 Dijitalle\u015fmeyle birlikte hayat\u0131m\u0131za giren en \u00f6nemli sorulardan biri de error ne demek? \u015feklinde&#8230;<\/p>\n","protected":false},"author":1,"featured_media":903,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genel"],"_links":{"self":[{"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/posts\/902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=902"}],"version-history":[{"count":3,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/posts\/902\/revisions"}],"predecessor-version":[{"id":1235,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/posts\/902\/revisions\/1235"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/media\/903"}],"wp:attachment":[{"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/verimin.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}