{"id":1812,"date":"2026-09-12T11:44:43","date_gmt":"2026-09-12T08:44:43","guid":{"rendered":"https:\/\/narhost.com\/destek\/502-bad-gateway-hatasi-nasil-cozulur\/"},"modified":"2026-09-12T11:44:43","modified_gmt":"2026-09-12T08:44:43","slug":"502-bad-gateway-hatasi-nasil-cozulur","status":"publish","type":"post","link":"https:\/\/narhost.com\/destek\/502-bad-gateway-hatasi-nasil-cozulur\/","title":{"rendered":"502 Bad Gateway Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr"},"content":{"rendered":"<p class=\"kb-dogrulama\">Son do\u011frulama: Eyl\u00fcl 2026 \u00b7 cPanel 136 test hesab\u0131nda denendi<\/p>\n<div id=\"hizli-cozum\" class=\"ai-box ai-box--cozum\">\n<p class=\"ai-box-title\">H\u0131zl\u0131 \u00e7\u00f6z\u00fcm<\/p>\n<p><code>502 Bad Gateway<\/code> mesaj\u0131, \u00f6n\u00fcn\u00fczdeki sunucunun (ters vekil ya da web sunucusu) arkadaki uygulamadan ge\u00e7erli bir yan\u0131t alamad\u0131\u011f\u0131 anlam\u0131na gelir; <strong>502 bad gateway hatas\u0131<\/strong> payla\u015f\u0131ml\u0131 hostingde en s\u0131k PHP s\u00fcrecinin \u00e7\u00f6kmesinden, zaman a\u015f\u0131m\u0131na u\u011framas\u0131ndan ya da \u00f6n\u00fcndeki bir CDN&#8217;in kayna\u011fa ula\u015famamas\u0131ndan gelir.<\/p>\n<ol>\n<li>Birka\u00e7 saniye bekleyip sayfay\u0131 yenileyin; PHP s\u00fcreci kendini yeniden ba\u015flatm\u0131\u015f olabilir.<\/li>\n<li>Cloudflare gibi bir CDN kullan\u0131yorsan\u0131z iste\u011fin kayna\u011fa (Narhost sunucusuna) ger\u00e7ekten ula\u015ft\u0131\u011f\u0131n\u0131 do\u011frulay\u0131n.<\/li>\n<li>cPanel \u2192 Yaz\u0131l\u0131m \u2192 MultiPHP Y\u00f6neticisi&#8217;nden alan ad\u0131n\u0131n PHP i\u015fleyicisini (PHP-FPM ya da DSO) kontrol edin.<\/li>\n<li>Sorun s\u00fcr\u00fcyorsa cPanel \u2192 \u00d6l\u00e7\u00fcmler \u2192 Hatalar sayfas\u0131ndan son sat\u0131r\u0131 okuyun.<\/li>\n<\/ol>\n<\/div>\n<table class=\"kb-uyg\">\n<tr>\n<th>Panel<\/th>\n<td>cPanel<\/td>\n<\/tr>\n<tr>\n<th>Sistem<\/th>\n<td>Payla\u015f\u0131ml\u0131 hosting (Apache + PHP-FPM) \u00b7 WordPress ya da \u00f6zel PHP uygulamas\u0131<\/td>\n<\/tr>\n<tr>\n<th>Yetki<\/th>\n<td>cPanel kullan\u0131c\u0131s\u0131<\/td>\n<\/tr>\n<tr>\n<th>Narhost \u00fcr\u00fcn\u00fc<\/th>\n<td><a href=\"https:\/\/narhost.com\/web-hosting\" title=\"Narhost Web Hosting paketleri\">Web Hosting<\/a><\/td>\n<\/tr>\n<\/table>\n<div class=\"kb-once\">\n<p class=\"label\">Ba\u015flamadan \u00f6nce<\/p>\n<ul>\n<li>Hatan\u0131n t\u00fcm sayfalarda m\u0131 yoksa yaln\u0131zca belirli bir i\u015flemde mi (form g\u00f6nderimi, giri\u015f) \u00e7\u0131kt\u0131\u011f\u0131n\u0131 not edin.<\/li>\n<li>Cloudflare ya da benzeri bir CDN kullan\u0131p kullanmad\u0131\u011f\u0131n\u0131z\u0131 bilin; kullan\u0131yorsan\u0131z DNS kayd\u0131n\u0131z\u0131n y\u00f6netim panelini a\u00e7\u0131k tutun.<\/li>\n<li>cPanel giri\u015f bilgileriniz elinizde olsun.<\/li>\n<li>Son yapt\u0131\u011f\u0131n\u0131z de\u011fi\u015fikli\u011fi hat\u0131rlay\u0131n: eklenti\/tema g\u00fcncellemesi, PHP s\u00fcr\u00fcm de\u011fi\u015fikli\u011fi ya da yeni bir entegrasyon.<\/li>\n<\/ul>\n<\/div>\n<h2>502 bad gateway hatas\u0131 ne anlama gelir, neden olur?<\/h2>\n<p>502, sunucunun kendisi de\u011fil, \u00f6n\u00fcndeki bir ara katman\u0131n (ters vekil, y\u00fck dengeleyici ya da Cloudflare gibi bir CDN) arkadaki uygulamadan anlaml\u0131 bir yan\u0131t alamad\u0131\u011f\u0131n\u0131 bildirdi\u011fi durumdur. Bu, 503&#8217;ten farkl\u0131d\u0131r: 503&#8217;te sunucu &#8220;kapasitem dolu&#8221; der, 502&#8217;de ise ara katman arkadan hi\u00e7 yan\u0131t ya da bozuk bir yan\u0131t ald\u0131\u011f\u0131 i\u00e7in iste\u011fi tamamlayamaz. Payla\u015f\u0131ml\u0131 hostingde en s\u0131k neden PHP s\u00fcrecinin bir bellek hatas\u0131 ya da zaman a\u015f\u0131m\u0131yla \u00e7\u00f6kmesi, ya da CDN&#8217;in DNS de\u011fi\u015fikli\u011finden sonra h\u00e2l\u00e2 eski bir sunucuya ba\u011flanmaya \u00e7al\u0131\u015fmas\u0131d\u0131r.<\/p>\n<p><strong>Ziyaret\u00e7iyseniz<\/strong> sayfay\u0131 birka\u00e7 saniye sonra yeniden y\u00fckleyin; \u00e7o\u011fu 502 birka\u00e7 saniyede kendili\u011finden ge\u00e7er. <strong>Site sahibiyseniz<\/strong> \u00f6nce CDN\/DNS kar\u0131\u015f\u0131kl\u0131\u011f\u0131n\u0131, sonra PHP i\u015fleyicisini, en son sunucu g\u00fcnl\u00fc\u011f\u00fcn\u00fc kontrol ederek nedeni s\u0131rayla elersiniz. cPanel&#8217;in bilgi bankas\u0131ndaki <a href=\"https:\/\/docs.cpanel.net\/knowledge-base\/php-fpm\/apache-vs-php-fpm-bottleneck-with-child-processes\/\" title=\"cPanel bilgi bankas\u0131 - Apache\/PHP-FPM alt s\u00fcre\u00e7 darbo\u011faz\u0131\" target=\"_blank\" rel=\"noopener\">Apache\/PHP-FPM alt s\u00fcre\u00e7 darbo\u011faz\u0131<\/a> yaz\u0131s\u0131 bu \u00e7\u00f6kmenin teknik arka plan\u0131n\u0131 anlat\u0131r.<\/p>\n<h2>Ad\u0131m ad\u0131m \u00e7\u00f6z\u00fcm: 502 bad gateway hatas\u0131 nas\u0131l giderilir<\/h2>\n<ol class=\"kb-adimlar\">\n<li><strong>CDN\/DNS kar\u0131\u015f\u0131kl\u0131\u011f\u0131n\u0131 eleyin.<\/strong> Cloudflare kullan\u0131yorsan\u0131z bulut simgesini ge\u00e7ici olarak &#8220;DNS only&#8221; yap\u0131p do\u011frudan Narhost sunucusuna eri\u015fti\u011finizi test edin.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: hata bu modda kayboluyorsa neden CDN ile kaynak aras\u0131ndaki ba\u011flant\u0131d\u0131r.<\/p>\n<\/li>\n<li><strong>PHP i\u015fleyicisini kontrol edin.<\/strong> cPanel \u2192 Yaz\u0131l\u0131m \u2192 MultiPHP Y\u00f6neticisi&#8217;nde alan ad\u0131n\u0131z\u0131n hangi i\u015fleyiciyle (PHP-FPM ya da DSO) \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 g\u00f6r\u00fcn; i\u015fleyici az \u00f6nce de\u011fi\u015ftiyse \u00f6nceki ayara d\u00f6n\u00fcp deneyin.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: i\u015fleyici de\u011fi\u015fikli\u011fi geri al\u0131n\u0131nca sayfa normal y\u00fckleniyorsa uyumsuzluk oradayd\u0131.<\/p>\n<figure class=\"kb-ekran\"><img decoding=\"async\" src=\"https:\/\/narhost.com\/destek\/wp-content\/uploads\/2026\/09\/502-bad-gateway-hatasi-nasil-cozulur-adim-1.webp\" alt=\"cPanel MultiPHP Y\u00f6neticisi'nde 502 bad gateway hatas\u0131 i\u00e7in alan ad\u0131n\u0131n PHP i\u015fleyicisini kontrol etme\" width=\"1200\" height=\"638\" loading=\"lazy\"><figcaption>MultiPHP Y\u00f6neticisi sayfas\u0131; alan ad\u0131na atanan PHP s\u00fcr\u00fcm\u00fc ve i\u015fleyici burada g\u00f6r\u00fcn\u00fcr.<\/figcaption><\/figure>\n<\/li>\n<li><strong>PHP bellek ve s\u00fcre limitini kontrol edin.<\/strong> cPanel \u2192 Yaz\u0131l\u0131m \u2192 MultiPHP INI D\u00fczenleyicisi&#8217;nden <code>memory_limit<\/code> ve <code>max_execution_time<\/code> de\u011ferlerine bak\u0131n; uygulaman\u0131z uzun s\u00fcren bir i\u015flem \u00e7al\u0131\u015ft\u0131r\u0131yorsa s\u00fcre limiti yetersiz kalabilir.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: limit art\u0131r\u0131l\u0131nca uzun s\u00fcren istek 502 vermeden tamamlan\u0131r.<\/p>\n<\/li>\n<li><strong>Eklenti ya da tema \u00e7ak\u0131\u015fmas\u0131n\u0131 eleyin.<\/strong> WordPress&#8217;te <code>wp-content\/plugins<\/code> klas\u00f6r\u00fcn\u00fc ge\u00e7ici olarak yeniden adland\u0131r\u0131p test edin; a\u011f\u0131r bir eklenti PHP s\u00fcrecini kilitleyip arka ucu yan\u0131ts\u0131z b\u0131rakabilir.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: klas\u00f6r ad\u0131 de\u011fi\u015fince hata kayboluyorsa neden bir eklentidir.<\/p>\n<\/li>\n<li><strong>Sunucu hata g\u00fcnl\u00fc\u011f\u00fcn\u00fc okuyun.<\/strong> cPanel \u2192 \u00d6l\u00e7\u00fcmler \u2192 Hatalar sayfas\u0131 PHP s\u00fcrecinin \u00e7\u00f6kme nedenini genelde do\u011frudan yazar.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: g\u00fcnl\u00fckte &#8220;premature end of script headers&#8221; gibi bir sat\u0131r g\u00f6r\u00fcrseniz neden yukar\u0131daki d\u00f6rt maddeden biridir.<\/p>\n<figure class=\"kb-ekran\"><img decoding=\"async\" src=\"https:\/\/narhost.com\/destek\/wp-content\/uploads\/2026\/09\/502-bad-gateway-hatasi-nasil-cozulur-adim-2.webp\" alt=\"cPanel Hatalar sayfas\u0131nda 502 bad gateway hatas\u0131 ile ilgili PHP \u00e7\u00f6kme sat\u0131r\u0131\" width=\"1200\" height=\"396\" loading=\"lazy\"><figcaption>cPanel Hatalar sayfas\u0131; PHP s\u00fcrecinin \u00e7\u00f6kme nedeni genelde bu sat\u0131rlarda g\u00f6r\u00fcn\u00fcr.<\/figcaption><\/figure>\n<\/li>\n<\/ol>\n<div class=\"warn-box\">\n<p class=\"label\">Dikkat<\/p>\n<p>PHP i\u015fleyicisini de\u011fi\u015ftirmeden \u00f6nce mevcut ayar\u0131 not edin; DSO&#8217;dan PHP-FPM&#8217;e ya da tersine ge\u00e7i\u015f baz\u0131 uygulamalarda dosya izinlerini etkileyebilir, geri d\u00f6n\u00fc\u015f plan\u0131n\u0131z olsun.<\/p>\n<\/div>\n<h2>Do\u011frulama<\/h2>\n<div class=\"success-box\">\n<p class=\"label\">Sonu\u00e7<\/p>\n<p>Sayfay\u0131 farkl\u0131 taray\u0131c\u0131 ve a\u011fdan art arda birka\u00e7 kez a\u00e7t\u0131\u011f\u0131n\u0131zda hata almadan y\u00fckleniyorsa ve cPanel Hatalar sayfas\u0131nda ayn\u0131 sat\u0131r yeni bir zaman damgas\u0131yla tekrarlam\u0131yorsa sorun \u00e7\u00f6z\u00fclm\u00fc\u015ft\u00fcr.<\/p>\n<\/div>\n<h2>H\u00e2l\u00e2 \u00e7\u00f6z\u00fclmediyse<\/h2>\n<ul>\n<li><strong>Hata s\u00fcrekli, her istekte ayn\u0131 \u015fekilde \u00e7\u0131k\u0131yor.<\/strong> PHP-FPM havuzu kaynak s\u0131n\u0131r\u0131na dayanm\u0131\u015f olabilir; <a href=\"https:\/\/narhost.com\/destek\/resource-limit-is-reached-508-hatasi\/\" title=\"Resource Limit Is Reached (508) hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr - Narhost Destek\">508 kart\u0131ndaki<\/a> kaynak kontrol\u00fcn\u00fc de uygulay\u0131n.<\/li>\n<li><strong>Paneliniz cPanel de\u011fil, Plesk.<\/strong> Ad\u0131mlar farkl\u0131 ekranlardan y\u00fcr\u00fcr; <a href=\"https:\/\/narhost.com\/destek\/ubuntu-ve-centos-plesk-502-hatasinin-cozumu\/\" title=\"Plesk&#039;te 502 Bad Gateway hatas\u0131n\u0131n \u00e7\u00f6z\u00fcm\u00fc - Narhost Destek\">Plesk 502 kart\u0131na<\/a> bak\u0131n.<\/li>\n<li><strong>Sayfa 502 de\u011fil, 500 Internal Server Error veriyor.<\/strong> Farkl\u0131 bir belirtidir; <a href=\"https:\/\/narhost.com\/destek\/500-internal-server-error-hatasi-nasil-cozulur\/\" title=\"500 Internal Server Error hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr - Narhost Destek\">500 Internal Server Error kart\u0131na<\/a> ge\u00e7in.<\/li>\n<\/ul>\n<div class=\"cta-box\">\n<p class=\"label\">Narhost deste\u011fi<\/p>\n<p>Ad\u0131mlar\u0131 uygulad\u0131ktan sonra hata devam ediyorsa destek talebi a\u00e7\u0131n; talebe alan ad\u0131n\u0131z\u0131, hatan\u0131n g\u00f6r\u00fcnd\u00fc\u011f\u00fc sayfay\u0131, CDN kullan\u0131p kullanmad\u0131\u011f\u0131n\u0131z\u0131 ve denedi\u011finiz ad\u0131mlar\u0131 ekleyin.<\/p>\n<p><a class=\"cta-btn\" href=\"https:\/\/narhost.com\/submitticket.php\" title=\"Narhost destek talebi a\u00e7\">Destek talebi a\u00e7<\/a><\/div>\n<div class=\"kb-ilgili\">\n<p class=\"label\">Sonraki ad\u0131mlar<\/p>\n<ul>\n<li><a href=\"https:\/\/narhost.com\/destek\/site-bazen-acilmiyorsa-ne-yapilmali\/\" title=\"Site a\u00e7\u0131lm\u0131yor - ad\u0131m ad\u0131m te\u015fhis rehberi - Narhost Destek\">Site a\u00e7\u0131lm\u0131yor \u2014 ad\u0131m ad\u0131m te\u015fhis rehberi<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/500-internal-server-error-hatasi-nasil-cozulur\/\" title=\"500 Internal Server Error hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr - Narhost Destek\">500 Internal Server Error hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/resource-limit-is-reached-508-hatasi\/\" title=\"Resource Limit Is Reached (508) hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr - Narhost Destek\">Resource Limit Is Reached (508) hatas\u0131 nas\u0131l \u00e7\u00f6z\u00fcl\u00fcr<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/ubuntu-ve-centos-plesk-502-hatasinin-cozumu\/\" title=\"Plesk&#039;te 502 Bad Gateway hatas\u0131n\u0131n \u00e7\u00f6z\u00fcm\u00fc - Narhost Destek\">Plesk&#8217;te 502 hatas\u0131n\u0131n \u00e7\u00f6z\u00fcm\u00fc<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"kb-faq\">\n<h2>S\u0131k\u00e7a sorulan sorular<\/h2>\n<h3>502 bad gateway hatas\u0131 ile 503 service unavailable birbirinden nas\u0131l ayr\u0131l\u0131r?<\/h3>\n<p>502&#8217;de \u00f6n\u00fcndeki ara katman arkadan hi\u00e7 ya da bozuk bir yan\u0131t al\u0131r; 503&#8217;te ise sunucunun kendisi kapasitesinin doldu\u011funu a\u00e7\u0131k\u00e7a bildirir. \u0130kisi de ge\u00e7ici olabilir ama nedenleri farkl\u0131 katmandad\u0131r.<\/p>\n<h3>Cloudflare kullan\u0131nca 502 hatas\u0131 neden daha s\u0131k g\u00f6r\u00fcn\u00fcr?<\/h3>\n<p>Cloudflare bir ara katman ekledi\u011fi i\u00e7in DNS de\u011fi\u015fikli\u011fi sonras\u0131 h\u00e2l\u00e2 eski bir kayda ba\u011flanabilir ya da kaynak sunucudan gelen yan\u0131t\u0131 zaman a\u015f\u0131m\u0131na u\u011fratabilir. DNS only modda test etmek bu ihtimali ay\u0131rt eder.<\/p>\n<h3>Hata neden yaln\u0131zca form g\u00f6nderiminde \u00e7\u0131k\u0131yor, ana sayfada \u00e7\u0131km\u0131yor?<\/h3>\n<p>Form g\u00f6nderimi genelde daha uzun s\u00fcren bir PHP i\u015flemi tetikler; s\u00fcre veya bellek limiti yetersizse yaln\u0131zca bu i\u015flemde zaman a\u015f\u0131m\u0131 olu\u015fur, statik sayfalar etkilenmez.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>502 Bad Gateway hatas\u0131 \u00f6n\u00fcn\u00fczdeki ara katman\u0131n arkadan ge\u00e7erli bir yan\u0131t alamad\u0131\u011f\u0131n\u0131 bildirir. Bu kart CDN\/DNS kar\u0131\u015f\u0131kl\u0131\u011f\u0131n\u0131, PHP i\u015fleyicisini ve eklenti \u00e7ak\u0131\u015fmas\u0131n\u0131 s\u0131rayla eler.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-1812","post","type-post","status-publish","format-standard","hentry","category-web-hosting"],"meta_box":[],"_links":{"self":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/1812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/comments?post=1812"}],"version-history":[{"count":0,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/1812\/revisions"}],"wp:attachment":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/media?parent=1812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/categories?post=1812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/tags?post=1812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}