{"id":16496,"date":"2024-08-29T10:25:17","date_gmt":"2024-08-29T03:25:17","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=16496"},"modified":"2026-02-25T09:18:33","modified_gmt":"2026-02-25T02:18:33","slug":"504-gateway-time-out-la-loi-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/","title":{"rendered":"L\u1ed7i 504 Gateway Time-out l\u00e0 g\u00ec? Nguy\u00ean nh\u00e2n &#038; 9+ C\u00e1ch Fix nhanh"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#504-Gateway-Time-out-la-loi-gi\" >504 Gateway Time-out l\u00e0 l\u1ed7i g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Tai-sao-xay-ra-loi-504-Gateway-Time-out\" >T\u1ea1i sao x\u1ea3y ra l\u1ed7i 504 Gateway Time-out?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#May-chu-trung-gian-khong-phan-hoi-kip\" >M\u00e1y ch\u1ee7 trung gian kh\u00f4ng ph\u1ea3n h\u1ed3i k\u1ecbp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Qua-tai-server-hoac-downtime\" >Qu\u00e1 t\u1ea3i server ho\u1eb7c downtime<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Cau-hinh-DNS-sai-hoac-cham\" >C\u1ea5u h\u00ecnh DNS sai ho\u1eb7c ch\u1eadm<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#FirewallProxy-chan-request\" >Firewall\/Proxy ch\u1eb7n request<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Loi-mang-tam-thoi-tu-phia-nguoi-dung\" >L\u1ed7i m\u1ea1ng t\u1ea1m th\u1eddi t\u1eeb ph\u00eda ng\u01b0\u1eddi d\u00f9ng<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Loi-504-anh-huong-gi-den-website\" >L\u1ed7i 504 \u1ea3nh h\u01b0\u1edfng g\u00ec \u0111\u1ebfn website?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Trai-nghiem-nguoi-dung-bi-gian-doan\" >Tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng b\u1ecb gi\u00e1n \u0111o\u1ea1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Anh-huong-SEO-thu-hang-Google\" >\u1ea2nh h\u01b0\u1edfng SEO &amp; th\u1ee9 h\u1ea1ng Google<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Ton-that-doanh-thu-doi-voi-website-thuong-mai-dien-tu\" >T\u1ed5n th\u1ea5t doanh thu \u0111\u1ed1i v\u1edbi website th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Phan-biet-loi-504-vs-502-vs-503\" >Ph\u00e2n bi\u1ec7t l\u1ed7i 504 vs 502 vs 503<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Cach-khac-phuc-loi-504-Gateway-Time-out-nhanh-nhat\" >C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i 504 Gateway Time-out nhanh nh\u1ea5t<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Doi-voi-nguoi-dung-thong-thuong\" >\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng th\u00f4ng th\u01b0\u1eddng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Doi-voi-quan-tri-vien-website\" >\u0110\u1ed1i v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean website<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Cach-phong-tranh-loi-504-trong-tuong-lai\" >C\u00e1ch ph\u00f2ng tr\u00e1nh l\u1ed7i 504 trong t\u01b0\u01a1ng lai<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Nang-cap-goi-hostingVPS-phu-hop\" >N\u00e2ng c\u1ea5p g\u00f3i hosting\/VPS ph\u00f9 h\u1ee3p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Toi-uu-code-co-so-du-lieu\" >T\u1ed1i \u01b0u code &amp; c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Su-dung-CDN-va-load-balancing\" >S\u1eed d\u1ee5ng CDN v\u00e0 load balancing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Thiet-lap-he-thong-giam-sat-uptime\" >Thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t uptime<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/#Ket-luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<article>\n<div>\n<div>\n<p><a href=\"https:\/\/interdata.vn\/blog\/504-gateway-time-out-la-loi-gi\/\"><strong>L\u1ed7i 504 Gateway Time-out l\u00e0 g\u00ec?<\/strong><\/a> \u0110\u00e2y l\u00e0 m\u1ed9t m\u00e3 tr\u1ea1ng th\u00e1i HTTP xu\u1ea5t hi\u1ec7n khi m\u00e1y ch\u1ee7 trung gian (gateway ho\u1eb7c proxy) kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i k\u1ecbp th\u1eddi t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c (upstream server). Khi l\u1ed7i n\u00e0y x\u1ea3y ra, ng\u01b0\u1eddi d\u00f9ng s\u1ebd th\u1ea5y th\u00f4ng b\u00e1o \u201c504 Gateway Time-out\u201d v\u00e0 kh\u00f4ng th\u1ec3 truy c\u1eadp website.<\/p>\n<p>\u0110\u1ed1i v\u1edbi ch\u1ee7 website, l\u1ed7i 504 kh\u00f4ng ch\u1ec9 l\u00e0m gi\u00e1n \u0111o\u1ea1n tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng m\u00e0 c\u00f2n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO, t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i v\u00e0 \u0111\u1ed9 tin c\u1eady h\u1ec7 th\u1ed1ng. Trong b\u00e0i vi\u1ebft n\u00e0y, InterData s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft nguy\u00ean nh\u00e2n g\u00e2y l\u1ed7i 504 Gateway Time-out, c\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i 504 Gateway Time-out nhanh, hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed3ng th\u1eddi h\u01b0\u1edbng d\u1eabn c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh l\u1ed7i 504 \u0111\u1ec3 website ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i.<\/p>\n<\/div>\n<\/div>\n<\/article>\n<h2><span class=\"ez-toc-section\" id=\"504-Gateway-Time-out-la-loi-gi\"><\/span>504 Gateway Time-out l\u00e0 l\u1ed7i g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ed7i 504 Gateway Time-out l\u00e0 m\u1ed9t m\u00e3 tr\u1ea1ng th\u00e1i HTTP, cho bi\u1ebft m\u1ed9t m\u00e1y ch\u1ee7 tr\u00ean internet \u0111\u00e3 kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i k\u1ecbp th\u1eddi t\u1eeb m\u1ed9t m\u00e1y ch\u1ee7 kh\u00e1c.<\/p>\n<p>\u0110\u1ec3 hi\u1ec3u \u0111\u01a1n gi\u1ea3n h\u01a1n, h\u00e3y h\u00ecnh dung m\u1ed9t chu\u1ed7i giao ti\u1ebfp tr\u00ean internet. Khi b\u1ea1n truy c\u1eadp m\u1ed9t website, tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n g\u1eedi m\u1ed9t y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e1y ch\u1ee7 web (g\u1ecdi l\u00e0 m\u00e1y ch\u1ee7 A). Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, \u0111\u1ec3 ho\u00e0n th\u00e0nh y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n, m\u00e1y ch\u1ee7 A c\u1ea7n l\u1ea5y th\u00eam d\u1eef li\u1ec7u t\u1eeb m\u1ed9t m\u00e1y ch\u1ee7 kh\u00e1c (g\u1ecdi l\u00e0 m\u00e1y ch\u1ee7 B, v\u00ed d\u1ee5 nh\u01b0 m\u00e1y ch\u1ee7 c\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1eb7c m\u1ed9t API b\u00ean ngo\u00e0i).<\/p>\n<p>L\u1ed7i 504 x\u1ea3y ra khi m\u00e1y ch\u1ee7 A g\u1eedi y\u00eau c\u1ea7u \u0111i nh\u01b0ng ph\u1ea3i ch\u1edd \u0111\u1ee3i m\u00e1y ch\u1ee7 B ph\u1ea3n h\u1ed3i qu\u00e1 l\u00e2u, v\u01b0\u1ee3t qu\u00e1 th\u1eddi gian ch\u1edd \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh. L\u00fac n\u00e0y, thay v\u00ec ti\u1ebfp t\u1ee5c ch\u1edd \u0111\u1ee3i v\u00f4 th\u1eddi h\u1ea1n, m\u00e1y ch\u1ee7 A s\u1ebd &#8220;b\u1ecf cu\u1ed9c&#8221; v\u00e0 g\u1eedi l\u1ea1i cho tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n th\u00f4ng b\u00e1o l\u1ed7i &#8220;504 Gateway Time-out&#8221;. V\u1ec1 c\u01a1 b\u1ea3n, \u0111\u00e2y l\u00e0 m\u1ed9t l\u1ed7i t\u1eeb ph\u00eda m\u00e1y ch\u1ee7, kh\u00f4ng ph\u1ea3i l\u1ed7i t\u1eeb thi\u1ebft b\u1ecb hay k\u1ebft n\u1ed1i internet c\u1ee7a b\u1ea1n.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32994\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out.jpg\" alt=\"504 Gateway Time-out\" width=\"600\" height=\"400\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out.jpg 1031w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out-1024x682.jpg 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out-768x512.jpg 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tai-sao-xay-ra-loi-504-Gateway-Time-out\"><\/span>T\u1ea1i sao x\u1ea3y ra l\u1ed7i 504 Gateway Time-out?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nguy\u00ean nh\u00e2n c\u1ee7a l\u1ed7i 504 r\u1ea5t \u0111a d\u1ea1ng, nh\u01b0ng t\u1ea5t c\u1ea3 \u0111\u1ec1u quy v\u1ec1 m\u1ed9t v\u1ea5n \u0111\u1ec1 chung: s\u1ef1 ch\u1eadm tr\u1ec5 trong giao ti\u1ebfp gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng th\u1ee7 ph\u1ea1m ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 InterData th\u01b0\u1eddng xuy\u00ean x\u1eed l\u00fd cho kh\u00e1ch h\u00e0ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"May-chu-trung-gian-khong-phan-hoi-kip\"><\/span>M\u00e1y ch\u1ee7 trung gian kh\u00f4ng ph\u1ea3n h\u1ed3i k\u1ecbp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n c\u1ed1t l\u00f5i v\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t. M\u00e1y ch\u1ee7 web ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t c\u1ed5ng (gateway) ho\u1eb7c proxy, ch\u1edd \u0111\u1ee3i ph\u1ea3n h\u1ed3i t\u1eeb m\u1ed9t d\u1ecbch v\u1ee5 n\u1ec1n. N\u1ebfu d\u1ecbch v\u1ee5 \u0111\u00f3 \u0111ang x\u1eed l\u00fd m\u1ed9t t\u00e1c v\u1ee5 n\u1eb7ng, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p ho\u1eb7c t\u1ea1o m\u1ed9t b\u00e1o c\u00e1o l\u1edbn, qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 k\u00e9o d\u00e0i. Khi th\u1eddi gian x\u1eed l\u00fd v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n timeout \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh tr\u00ean m\u00e1y ch\u1ee7 web, l\u1ed7i 504 s\u1ebd xu\u1ea5t hi\u1ec7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Qua-tai-server-hoac-downtime\"><\/span>Qu\u00e1 t\u1ea3i server ho\u1eb7c downtime<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi m\u00e1y ch\u1ee7 \u0111\u00edch (upstream server) ph\u1ea3i x\u1eed l\u00fd m\u1ed9t l\u01b0\u1ee3ng truy c\u1eadp t\u0103ng \u0111\u1ed9t bi\u1ebfn, t\u00e0i nguy\u00ean nh\u01b0 CPU v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/ram-server\/\">RAM<\/a> c\u00f3 th\u1ec3 b\u1ecb c\u1ea1n ki\u1ec7t. T\u00ecnh tr\u1ea1ng n\u00e0y khi\u1ebfn m\u00e1y ch\u1ee7 kh\u00f4ng c\u00f2n kh\u1ea3 n\u0103ng x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u m\u1edbi m\u1ed9t c\u00e1ch k\u1ecbp th\u1eddi. Ngo\u00e0i ra, n\u1ebfu m\u00e1y ch\u1ee7 n\u00e0y \u0111ang trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c g\u1eb7p s\u1ef1 c\u1ed1 (downtime), m\u1ecdi y\u00eau c\u1ea7u g\u1eedi \u0111\u1ebfn \u0111\u1ec1u s\u1ebd kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cau-hinh-DNS-sai-hoac-cham\"><\/span>C\u1ea5u h\u00ecnh DNS sai ho\u1eb7c ch\u1eadm<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (<a href=\"https:\/\/interdata.vn\/blog\/dns-la-gi\/\">DNS<\/a>) ch\u1ecbu tr\u00e1ch nhi\u1ec7m d\u1ecbch t\u00ean mi\u1ec1n (v\u00ed d\u1ee5: <code>interdata.vn<\/code>) th\u00e0nh \u0111\u1ecba ch\u1ec9 IP m\u00e0 m\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 hi\u1ec3u. N\u1ebfu c\u00f3 s\u1ef1 c\u1ed1 v\u1edbi m\u00e1y ch\u1ee7 DNS, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea5u h\u00ecnh sai b\u1ea3n ghi ho\u1eb7c m\u00e1y ch\u1ee7 DNS ph\u1ea3n h\u1ed3i ch\u1eadm, qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i n\u00e0y s\u1ebd b\u1ecb tr\u00ec ho\u00e3n. S\u1ef1 ch\u1eadm tr\u1ec5 n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ee7 l\u00e2u \u0111\u1ec3 g\u00e2y ra l\u1ed7i timeout.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"FirewallProxy-chan-request\"><\/span>Firewall\/Proxy ch\u1eb7n request<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u01b0\u1eddng l\u1eeda (Firewall) l\u00e0 m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 quan tr\u1ecdng cho h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7. Tuy nhi\u00ean, n\u1ebfu \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh qu\u00e1 nghi\u00eam ng\u1eb7t, t\u01b0\u1eddng l\u1eeda c\u00f3 th\u1ec3 nh\u1eadn di\u1ec7n nh\u1ea7m m\u1ed9t s\u1ed1 y\u00eau c\u1ea7u h\u1ee3p l\u1ec7 l\u00e0 m\u1ed1i \u0111e d\u1ecda v\u00e0 ch\u1eb7n ch\u00fang. Vi\u1ec7c ch\u1eb7n n\u00e0y ng\u0103n y\u00eau c\u1ea7u \u0111\u1ebfn \u0111\u01b0\u1ee3c m\u00e1y ch\u1ee7 \u0111\u00edch, d\u1eabn \u0111\u1ebfn kh\u00f4ng c\u00f3 ph\u1ea3n h\u1ed3i v\u00e0 g\u00e2y ra l\u1ed7i 504.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loi-mang-tam-thoi-tu-phia-nguoi-dung\"><\/span>L\u1ed7i m\u1ea1ng t\u1ea1m th\u1eddi t\u1eeb ph\u00eda ng\u01b0\u1eddi d\u00f9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1eb7c d\u00f9 hi\u1ebfm g\u1eb7p h\u01a1n, \u0111\u00f4i khi s\u1ef1 c\u1ed1 c\u0169ng c\u00f3 th\u1ec3 xu\u1ea5t ph\u00e1t t\u1eeb ph\u00eda ng\u01b0\u1eddi d\u00f9ng. M\u1ed9t k\u1ebft n\u1ed1i m\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c c\u1ea5u h\u00ecnh proxy tr\u00ean m\u00e1y t\u00ednh ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh giao ti\u1ebfp v\u1edbi m\u00e1y ch\u1ee7, g\u00e2y ra t\u00ecnh tr\u1ea1ng timeout.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi-504-anh-huong-gi-den-website\"><\/span>L\u1ed7i 504 \u1ea3nh h\u01b0\u1edfng g\u00ec \u0111\u1ebfn website?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ed7i 504 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t th\u00f4ng b\u00e1o k\u1ef9 thu\u1eadt. Nh\u1eefng t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ed7i n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng s\u00e2u s\u1eafc \u0111\u1ebfn s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a m\u1ed9t website.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-32993\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out-1.jpg\" alt=\"504 Gateway Time-out 1\" width=\"600\" height=\"337\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out-1.jpg 600w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/504-Gateway-Time-out-1-300x169.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Trai-nghiem-nguoi-dung-bi-gian-doan\"><\/span>Tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng b\u1ecb gi\u00e1n \u0111o\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 t\u00e1c \u0111\u1ed9ng r\u00f5 r\u00e0ng nh\u1ea5t. Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o website v\u00e0 ch\u1ec9 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t th\u00f4ng b\u00e1o l\u1ed7i, h\u1ecd s\u1ebd c\u1ea3m th\u1ea5y th\u1ea5t v\u1ecdng v\u00e0 kh\u00f3 ch\u1ecbu. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng t\u1ef7 l\u1ec7 tho\u00e1t trang (bounce rate), gi\u1ea3m th\u1eddi gian h\u1ecd \u1edf l\u1ea1i trang v\u00e0 l\u00e0m x\u00f3i m\u00f2n l\u00f2ng tin v\u00e0o th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a b\u1ea1n. M\u1ed9t tr\u1ea3i nghi\u1ec7m t\u1ed3i t\u1ec7 c\u00f3 th\u1ec3 khi\u1ebfn h\u1ecd kh\u00f4ng bao gi\u1edd quay tr\u1edf l\u1ea1i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Anh-huong-SEO-thu-hang-Google\"><\/span>\u1ea2nh h\u01b0\u1edfng SEO &amp; th\u1ee9 h\u1ea1ng Google<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u01b0 Google \u01b0u ti\u00ean nh\u1eefng website c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao. Khi c\u00e1c bot c\u1ee7a Google thu th\u1eadp d\u1eef li\u1ec7u (crawl) trang web c\u1ee7a b\u1ea1n v\u00e0 li\u00ean t\u1ee5c g\u1eb7p ph\u1ea3i l\u1ed7i 504, ch\u00fang s\u1ebd g\u1eedi t\u00edn hi\u1ec7u r\u1eb1ng website c\u1ee7a b\u1ea1n kh\u00f4ng \u0111\u00e1ng tin c\u1eady. N\u1ebfu t\u00ecnh tr\u1ea1ng n\u00e0y k\u00e9o d\u00e0i, th\u1ee9 h\u1ea1ng t\u1eeb kh\u00f3a c\u1ee7a b\u1ea1n tr\u00ean trang k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm c\u00f3 th\u1ec3 b\u1ecb s\u1ee5t gi\u1ea3m nghi\u00eam tr\u1ecdng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ton-that-doanh-thu-doi-voi-website-thuong-mai-dien-tu\"><\/span>T\u1ed5n th\u1ea5t doanh thu \u0111\u1ed1i v\u1edbi website th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c trang web b\u00e1n h\u00e0ng, downtime \u0111\u1ed3ng ngh\u0129a v\u1edbi m\u1ea5t doanh thu. M\u1ed7i ph\u00fat website kh\u00f4ng th\u1ec3 truy c\u1eadp l\u00e0 m\u1ed7i ph\u00fat b\u1ea1n m\u1ea5t \u0111i nh\u1eefng \u0111\u01a1n h\u00e0ng ti\u1ec1m n\u0103ng. L\u1ed7i 504 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh thanh to\u00e1n c\u00f3 th\u1ec3 khi\u1ebfn kh\u00e1ch h\u00e0ng t\u1eeb b\u1ecf gi\u1ecf h\u00e0ng v\u00e0 t\u00ecm \u0111\u1ebfn \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh.<\/p>\n<div class=\"highlight-cta-box\"><span style=\"color: #ed1c24; font-size: 115%;\"><strong>N\u00e2ng c\u1ea5p VPS HOSTING t\u1ed1c \u0111\u1ed9 cao ngay \u0111\u1ec3 gi\u1ea3m l\u1ed7i 504<\/strong><\/span><br \/>\nN\u1ebfu website c\u1ee7a b\u1ea1n th\u01b0\u1eddng xuy\u00ean g\u1eb7p l\u1ed7i 504 do qu\u00e1 t\u1ea3i ho\u1eb7c ph\u1ea3n h\u1ed3i ch\u1eadm, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u h\u1ea1 t\u1ea7ng ch\u01b0a \u0111\u1ee7 t\u00e0i nguy\u00ean. VPS v\u00e0 Cloud Hosting hi\u1ec7u n\u0103ng cao t\u1ea1i InterData \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u CPU, \u1ed5 c\u1ee9ng NVMe U2 v\u00e0 b\u0103ng th\u00f4ng kh\u00f4ng gi\u1edbi h\u1ea1n, gi\u00fap gi\u1ea3m \u0111\u1ed9 tr\u1ec5 v\u00e0 \u0111\u1ea3m b\u1ea3o website ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 khi traffic t\u0103ng \u0111\u1ed9t bi\u1ebfn.<br \/>\n<a href=\"https:\/\/interdata.vn\/vps-amd\/\" class=\"button primary is-primary is-medium\"  >\n\t\t<span>Tham kh\u1ea3o b\u1ea3ng gi\u00e1 VPS AMD<\/span>\n\t<\/a>\n <a href=\"https:\/\/interdata.vn\/cloud-server\/\" class=\"button primary is-primary is-medium\"  >\n\t\t<span>Tham kh\u1ea3o b\u1ea3ng gi\u00e1 Cloud Server<\/span>\n\t<\/a>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Phan-biet-loi-504-vs-502-vs-503\"><\/span>Ph\u00e2n bi\u1ec7t l\u1ed7i 504 vs 502 vs 503<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ed7i 502, 503 v\u00e0 504 \u0111\u1ec1u thu\u1ed9c nh\u00f3m 5xx (l\u1ed7i server-side), nh\u01b0ng kh\u00e1c nhau v\u1ec1 nguy\u00ean nh\u00e2n v\u00e0 ng\u1eef c\u1ea3nh x\u1ea3y ra. \u0110\u1ec3 ch\u1ea9n \u0111o\u00e1n v\u1ea5n \u0111\u1ec1 ch\u00ednh x\u00e1c h\u01a1n, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ph\u00e2n bi\u1ec7t l\u1ed7i 504 v\u1edbi c\u00e1c m\u00e3 l\u1ed7i 5xx kh\u00e1c.<\/p>\n<ul>\n<li><strong>502 Bad Gateway vs 504 Gateway Time-out:<\/strong> L\u1ed7i 502 c\u00f3 ngh\u0129a l\u00e0 m\u00e1y ch\u1ee7 trung gian \u0111\u00e3 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t ph\u1ea3n h\u1ed3i <strong>kh\u00f4ng h\u1ee3p l\u1ec7<\/strong> t\u1eeb m\u00e1y ch\u1ee7 \u0111\u00edch. Trong khi \u0111\u00f3, l\u1ed7i 504 c\u00f3 ngh\u0129a l\u00e0 m\u00e1y ch\u1ee7 trung gian <strong>kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c b\u1ea5t k\u1ef3 ph\u1ea3n h\u1ed3i n\u00e0o<\/strong> v\u00ec qu\u00e1 gi\u1edd.<\/li>\n<li><strong>503 Service Unavailable vs 504:<\/strong> L\u1ed7i 503 cho bi\u1ebft m\u00e1y ch\u1ee7 hi\u1ec7n t\u1ea1i <strong>kh\u00f4ng th\u1ec3 x\u1eed l\u00fd y\u00eau c\u1ea7u<\/strong> (th\u01b0\u1eddng do qu\u00e1 t\u1ea3i ho\u1eb7c \u0111ang b\u1ea3o tr\u00ec) v\u00e0 \u0111\u00e2y l\u00e0 m\u1ed9t t\u00ecnh tr\u1ea1ng t\u1ea1m th\u1eddi. L\u1ed7i 504 x\u1ea3y ra khi m\u00e1y ch\u1ee7 <strong>\u0111ang c\u1ed1 g\u1eafng<\/strong> x\u1eed l\u00fd nh\u01b0ng b\u1ecb m\u1ed9t m\u00e1y ch\u1ee7 kh\u00e1c l\u00e0m cho ph\u1ea3i ch\u1edd \u0111\u1ee3i qu\u00e1 l\u00e2u.<\/li>\n<\/ul>\n<p id=\"so-snh-li-502-503-504\"><strong>B\u1ea3ng so s\u00e1nh l\u1ed7i 502, 503, 504<\/strong>:<\/p>\n<div style=\"overflow-x: auto; margin: 20px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: left; border-radius: 8px; overflow: hidden;\">\n<tbody>\n<tr style=\"background: linear-gradient(90deg, #0C40F4, #077FFA, #0497FC); color: #ffffff;\">\n<th style=\"padding: 12px; border: 1px solid #e5e7eb;\">M\u00e3 l\u1ed7i<\/th>\n<th style=\"padding: 12px; border: 1px solid #e5e7eb;\">\u00dd ngh\u0129a<\/th>\n<th style=\"padding: 12px; border: 1px solid #e5e7eb;\">Nguy\u00ean nh\u00e2n ch\u00ednh<\/th>\n<th style=\"padding: 12px; border: 1px solid #e5e7eb;\">Kh\u1eafc ph\u1ee5c ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\"><strong>502 Bad Gateway<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Gateway\/proxy nh\u1eadn ph\u1ea3n h\u1ed3i kh\u00f4ng h\u1ee3p l\u1ec7 t\u1eeb upstream server.<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Server backend crash, k\u1ebft n\u1ed1i l\u1ed7i, ph\u1ea3n h\u1ed3i sai \u0111\u1ecbnh d\u1ea1ng.<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Ki\u1ec3m tra backend server, proxy config, restart d\u1ecbch v\u1ee5.<\/td>\n<\/tr>\n<tr style=\"background-color: #eef5ff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\"><strong>503 Service Unavailable<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Server t\u1ea1m th\u1eddi kh\u00f4ng x\u1eed l\u00fd \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u (qu\u00e1 t\u1ea3i ho\u1eb7c b\u1ea3o tr\u00ec).<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Traffic cao \u0111\u1ed9t bi\u1ebfn, maintenance, resource h\u1ebft.<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Gi\u1ea3m t\u1ea3i, scale server, th\u00eam Retry-After header.<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\"><strong>504 Gateway Timeout<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Gateway kh\u00f4ng nh\u1eadn ph\u1ea3n h\u1ed3i k\u1ecbp th\u1eddi t\u1eeb upstream (timeout).<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Backend ch\u1eadm, network delay, timeout config kh\u00f4ng kh\u1edbp.<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">T\u0103ng timeout, t\u1ed1i \u01b0u backend, ki\u1ec3m tra m\u1ea1ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><strong>Khi n\u00e0o g\u1eb7p l\u1ed7i:<\/strong><\/p>\n<ul>\n<li><strong>502<\/strong>: Th\u01b0\u1eddng \u1edf setup c\u00f3 load balancer\/reverse proxy (<a href=\"https:\/\/interdata.vn\/blog\/nginx-la-gi\/\">Nginx<\/a>, Cloudflare).\u200b<\/li>\n<li><strong>503<\/strong>: Server \u0111ang &#8220;b\u1ea3o tr\u00ec&#8221; ho\u1eb7c overload, th\u00e2n thi\u1ec7n v\u1edbi SEO h\u01a1n 504.\u200b<\/li>\n<li><strong>504<\/strong>: Y\u00eau c\u1ea7u m\u1ea5t qu\u00e1 l\u00e2u (&gt;30-60s), ph\u1ed5 bi\u1ebfn v\u1edbi database query ch\u1eadm.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cach-khac-phuc-loi-504-Gateway-Time-out-nhanh-nhat\"><\/span>C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i 504 Gateway Time-out nhanh nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c kh\u1eafc ph\u1ee5c l\u1ed7i 504 \u0111\u00f2i h\u1ecfi m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd s\u1ef1 c\u1ed1 c\u00f3 h\u1ec7 th\u1ed1ng, b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng b\u01b0\u1edbc \u0111\u01a1n gi\u1ea3n nh\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Doi-voi-nguoi-dung-thong-thuong\"><\/span>\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng th\u00f4ng th\u01b0\u1eddng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i v\u00e0 g\u1eb7p l\u1ed7i n\u00e0y, h\u00e3y th\u1eed c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ul>\n<li><strong>T\u1ea3i l\u1ea1i trang:<\/strong> Nh\u1ea5n ph\u00edm F5 ho\u1eb7c Ctrl+R (Cmd+R tr\u00ean Mac). \u0110\u00f4i khi l\u1ed7i ch\u1ec9 l\u00e0 t\u1ea1m th\u1eddi v\u00e0 vi\u1ec7c t\u1ea3i l\u1ea1i trang c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1.<\/li>\n<li><strong>X\u00f3a cache v\u00e0 cookie c\u1ee7a tr\u00ecnh duy\u1ec7t:<\/strong> D\u1eef li\u1ec7u duy\u1ec7t web c\u0169 c\u00f3 th\u1ec3 g\u00e2y ra xung \u0111\u1ed9t. Vi\u1ec7c x\u00f3a ch\u00fang \u0111\u1ea3m b\u1ea3o b\u1ea1n \u0111ang t\u1ea3i phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u1ee7a trang.<\/li>\n<li><strong>Ki\u1ec3m tra k\u1ebft n\u1ed1i m\u1ea1ng:<\/strong> H\u00e3y th\u1eed truy c\u1eadp m\u1ed9t website kh\u00e1c \u0111\u1ec3 ch\u1eafc ch\u1eafn r\u1eb1ng k\u1ebft n\u1ed1i internet c\u1ee7a b\u1ea1n v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/li>\n<li><strong>Li\u00ean h\u1ec7 qu\u1ea3n tr\u1ecb vi\u00ean website:<\/strong> N\u1ebfu \u0111\u00e3 th\u1eed c\u00e1c c\u00e1ch tr\u00ean m\u00e0 kh\u00f4ng hi\u1ec7u qu\u1ea3, h\u00e3y th\u00f4ng b\u00e1o cho ch\u1ee7 s\u1edf h\u1eefu website \u0111\u1ec3 h\u1ecd c\u00f3 th\u1ec3 ki\u1ec3m tra t\u1eeb ph\u00eda m\u00e1y ch\u1ee7.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Doi-voi-quan-tri-vien-website\"><\/span>\u0110\u1ed1i v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean website<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>V\u1edbi vai tr\u00f2 qu\u1ea3n tr\u1ecb vi\u00ean, b\u1ea1n c\u1ea7n ki\u1ec3m tra s\u00e2u h\u01a1n v\u00e0o h\u1ec7 th\u1ed1ng.<\/p>\n<ul>\n<li><strong>Ki\u1ec3m tra log server:<\/strong> \u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n. C\u00e1c file error log c\u1ee7a m\u00e1y ch\u1ee7 web (nh\u01b0 Nginx ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/apache-la-gi\/\">Apache<\/a>) s\u1ebd cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 y\u00eau c\u1ea7u n\u00e0o \u0111\u00e3 g\u00e2y ra timeout v\u00e0 t\u1ea1i sao.<\/li>\n<li><strong>Ki\u1ec3m tra t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7:<\/strong> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 <code>top<\/code>, <code>htop<\/code> \u0111\u1ec3 theo d\u00f5i vi\u1ec7c s\u1eed d\u1ee5ng CPU v\u00e0 RAM. N\u1ebfu t\u00e0i nguy\u00ean li\u00ean t\u1ee5c \u1edf m\u1ee9c cao, b\u1ea1n c\u1ea7n xem x\u00e9t t\u1ed1i \u01b0u h\u00f3a ho\u1eb7c n\u00e2ng c\u1ea5p.<\/li>\n<li><strong>T\u0103ng th\u1eddi gian timeout tr\u00ean server:<\/strong> N\u1ebfu b\u1ea1n bi\u1ebft m\u1ed9t s\u1ed1 t\u00e1c v\u1ee5 tr\u00ean website c\u1ea7n nhi\u1ec1u th\u1eddi gian h\u01a1n \u0111\u1ec3 x\u1eed l\u00fd, b\u1ea1n c\u00f3 th\u1ec3 t\u0103ng gi\u1edbi h\u1ea1n timeout.\n<ul>\n<li><strong>V\u1edbi Nginx:<\/strong> M\u1edf file c\u1ea5u h\u00ecnh v\u00e0 t\u0103ng gi\u00e1 tr\u1ecb c\u1ee7a <code>proxy_connect_timeout<\/code>, <code>proxy_send_timeout<\/code>, <code>proxy_read_timeout<\/code>.<\/li>\n<li><strong>V\u1edbi Apache:<\/strong> T\u0103ng gi\u00e1 tr\u1ecb c\u1ee7a <code>Timeout<\/code> trong file <code>httpd.conf<\/code>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ki\u1ec3m tra c\u1ea5u h\u00ecnh DNS:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c b\u1ea3n ghi DNS c\u1ee7a t\u00ean mi\u1ec1n \u0111ang tr\u1ecf \u0111\u00fang \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP ch\u00ednh x\u00e1c.<\/li>\n<li><strong>Li\u00ean h\u1ec7 nh\u00e0 cung c\u1ea5p hosting:<\/strong> N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 t\u1ef1 x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n, \u0111\u1eebng ng\u1ea7n ng\u1ea1i li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 h\u1ed7 tr\u1ee3 c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 hosting. C\u00e1c chuy\u00ean gia t\u1ea1i InterData lu\u00f4n s\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng ph\u00e2n t\u00edch v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c s\u1ef1 c\u1ed1 t\u01b0\u01a1ng t\u1ef1.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cach-phong-tranh-loi-504-trong-tuong-lai\"><\/span>C\u00e1ch ph\u00f2ng tr\u00e1nh l\u1ed7i 504 trong t\u01b0\u01a1ng lai<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 ch\u1ec9 l\u00e0 gi\u1ea3i ph\u00e1p t\u00ecnh th\u1ebf. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o website ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, b\u1ea1n c\u1ea7n c\u00f3 nh\u1eefng chi\u1ebfn l\u01b0\u1ee3c ph\u00f2ng ng\u1eeba d\u00e0i h\u1ea1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nang-cap-goi-hostingVPS-phu-hop\"><\/span>N\u00e2ng c\u1ea5p g\u00f3i hosting\/VPS ph\u00f9 h\u1ee3p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ea3m b\u1ea3o g\u00f3i hosting c\u1ee7a b\u1ea1n c\u00f3 \u0111\u1ee7 t\u00e0i nguy\u00ean \u0111\u1ec3 x\u1eed l\u00fd l\u01b0\u1ee3ng truy c\u1eadp hi\u1ec7n t\u1ea1i v\u00e0 d\u1ef1 ki\u1ebfn trong t\u01b0\u01a1ng lai. Khi website ph\u00e1t tri\u1ec3n, vi\u1ec7c n\u00e2ng c\u1ea5p l\u00ean m\u1ed9t g\u00f3i <a href=\"https:\/\/interdata.vn\/blog\/vps-la-gi\/\">VPS<\/a> ho\u1eb7c m\u00e1y ch\u1ee7 ri\u00eang m\u1ea1nh m\u1ebd h\u01a1n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toi-uu-code-co-so-du-lieu\"><\/span>T\u1ed1i \u01b0u code &amp; c\u01a1 s\u1edf d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u00e3 ngu\u1ed3n kh\u00f4ng hi\u1ec7u qu\u1ea3 v\u00e0 c\u00e1c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u1eadm ch\u1ea1p l\u00e0 nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u g\u00e2y ra timeout. H\u00e3y th\u01b0\u1eddng xuy\u00ean r\u00e0 so\u00e1t code, t\u1ed1i \u01b0u h\u00f3a c\u00e1c c\u00e2u l\u1ec7nh SQL, v\u00e0 s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt caching \u0111\u1ec3 gi\u1ea3m th\u1eddi gian x\u1eed l\u00fd c\u1ee7a m\u00e1y ch\u1ee7.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-CDN-va-load-balancing\"><\/span>S\u1eed d\u1ee5ng CDN v\u00e0 load balancing<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/interdata.vn\/blog\/cdn-la-gi\/\">M\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung<\/a> (CDN) gi\u00fap l\u01b0u tr\u1eef b\u1ea3n sao c\u1ee7a c\u00e1c t\u00e0i nguy\u00ean t\u0129nh (h\u00ecnh \u1ea3nh, CSS, JS) tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7 kh\u1eafp th\u1ebf gi\u1edbi. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i \u0111\u00e1ng k\u1ec3 cho m\u00e1y ch\u1ee7 g\u1ed1c. C\u00e2n b\u1eb1ng t\u1ea3i (Load Balancing) l\u00e0 k\u1ef9 thu\u1eadt ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp qua nhi\u1ec1u m\u00e1y ch\u1ee7, \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 m\u00e1y ch\u1ee7 n\u00e0o b\u1ecb qu\u00e1 t\u1ea3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thiet-lap-he-thong-giam-sat-uptime\"><\/span>Thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t uptime<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 UptimeRobot ho\u1eb7c Pingdom \u0111\u1ec3 theo d\u00f5i t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a website. C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd g\u1eedi c\u1ea3nh b\u00e1o cho b\u1ea1n ngay l\u1eadp t\u1ee9c khi website g\u1eb7p s\u1ef1 c\u1ed1, gi\u00fap b\u1ea1n ph\u1ea3n \u1ee9ng v\u00e0 kh\u1eafc ph\u1ee5c v\u1ea5n \u0111\u1ec1 nhanh ch\u00f3ng tr\u01b0\u1edbc khi ng\u01b0\u1eddi d\u00f9ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ket-luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f3 th\u1ec3 th\u1ea5y, l\u1ed7i 504 Gateway Time-out l\u00e0 m\u1ed9t s\u1ef1 c\u1ed1 ph\u1ee9c t\u1ea1p li\u00ean quan \u0111\u1ebfn s\u1ef1 ch\u1eadm tr\u1ec5 trong giao ti\u1ebfp gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ea1 t\u1ea7ng web. Vi\u1ec7c hi\u1ec3u r\u00f5 nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c l\u00e0 k\u1ef9 n\u0103ng c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai \u0111ang qu\u1ea3n l\u00fd m\u1ed9t website.<\/p>\n<p>X\u1eed l\u00fd nhanh ch\u00f3ng l\u1ed7i 504 gi\u00fap b\u1ea3o v\u1ec7 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, duy tr\u00ec th\u1ee9 h\u1ea1ng SEO v\u00e0 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng kinh doanh kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n. Tuy nhi\u00ean, h\u01b0\u1edbng \u0111i b\u1ec1n v\u1eefng nh\u1ea5t v\u1eabn l\u00e0 \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba.<\/p>\n<p>B\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, l\u1ef1a ch\u1ecdn h\u1ea1 t\u1ea7ng ph\u00f9 h\u1ee3p v\u00e0 gi\u00e1m s\u00e1t ch\u1ee7 \u0111\u1ed9ng, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3 nguy c\u01a1 x\u1ea3y ra l\u1ed7i v\u00e0 x\u00e2y d\u1ef1ng m\u1ed9t website v\u1eefng m\u1ea1nh, \u0111\u00e1ng tin c\u1eady. N\u1ebfu b\u1ea1n c\u1ea7n s\u1ef1 t\u01b0 v\u1ea5n chuy\u00ean s\u00e2u ho\u1eb7c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt, \u0111\u1ed9i ng\u0169 c\u1ee7a <a href=\"https:\/\/interdata.vn\/\">InterData<\/a> lu\u00f4n s\u1eb5n l\u00f2ng \u0111\u1ed3ng h\u00e0nh c\u00f9ng b\u1ea1n.<\/p>\n<p><strong>Li\u00ean h\u1ec7 t\u01b0 v\u1ea5n d\u1ecbch v\u1ee5 mi\u1ec5n ph\u00ed:<\/strong><\/p>\n<ul>\n<li><strong>Hotline<\/strong>: 1900636822<\/li>\n<li><strong>Fanpage<\/strong>: facebook.com\/interdata.com.vn<\/li>\n<li><strong>Website<\/strong>: interdata.vn<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ed7i 504 Gateway Time-out l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 m\u1ed9t m\u00e3 tr\u1ea1ng th\u00e1i HTTP xu\u1ea5t hi\u1ec7n khi m\u00e1y ch\u1ee7 trung gian (gateway ho\u1eb7c proxy) kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i k\u1ecbp th\u1eddi t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c (upstream server). Khi l\u1ed7i n\u00e0y x\u1ea3y ra, ng\u01b0\u1eddi d\u00f9ng s\u1ebd th\u1ea5y th\u00f4ng b\u00e1o \u201c504 Gateway Time-out\u201d v\u00e0 kh\u00f4ng th\u1ec3 truy c\u1eadp<\/p>\n","protected":false},"author":2,"featured_media":32994,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-16496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/16496","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=16496"}],"version-history":[{"count":8,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/16496\/revisions"}],"predecessor-version":[{"id":39489,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/16496\/revisions\/39489"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/32994"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=16496"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=16496"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=16496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}