{"id":22385,"date":"2025-10-20T16:25:18","date_gmt":"2025-10-20T09:25:18","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=22385"},"modified":"2026-03-30T17:00:14","modified_gmt":"2026-03-30T10:00:14","slug":"loi-401-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/","title":{"rendered":"L\u1ed7i 401 L\u00e0 G\u00ec? Nguy\u00ean nh\u00e2n, 10+ C\u00e1ch Fix L\u1ed7i 401 Unauthorized"},"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\/loi-401-la-gi\/#Loi-401-la-gi\" >L\u1ed7i 401 l\u00e0 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\/loi-401-la-gi\/#Bang-so-sanh-401-vs-403-400-404\" >B\u1ea3ng so s\u00e1nh 401 vs 403 400, 404<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Nguyen-nhan-pho-bien-gay-ra-loi-401-tren-website\" >Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i 401 tr\u00ean website<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#1-Nhap-sai-thong-tin-xac-thuc\" >1. Nh\u1eadp sai th\u00f4ng tin x\u00e1c th\u1ef1c<\/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\/loi-401-la-gi\/#2-Quen-%E2%80%9Cgia-han-the-thanh-vien%E2%80%9D-Tai-khoan-bi-khoa-hoac-het-han\" >2. Qu\u00ean &#8220;gia h\u1ea1n th\u1ebb th\u00e0nh vi\u00ean&#8221; (T\u00e0i kho\u1ea3n b\u1ecb kh\u00f3a ho\u1eb7c h\u1ebft h\u1ea1n)<\/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\/loi-401-la-gi\/#3-Quyen-truy-cap-bi-gioi-han\" >3. Quy\u1ec1n truy c\u1eadp b\u1ecb gi\u1edbi h\u1ea1n<\/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\/loi-401-la-gi\/#4-Loi-cau-hinh-trang-web\" >4. L\u1ed7i c\u1ea5u h\u00ecnh trang web<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#5-Van-de-may-chu-bi-qua-tai\" >5. V\u1ea5n \u0111\u1ec1 m\u00e1y ch\u1ee7 b\u1ecb qu\u00e1 t\u1ea3i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#6-Su-co-voi-tuong-lua-hoac-bao-mat\" >6. S\u1ef1 c\u1ed1 v\u1edbi t\u01b0\u1eddng l\u1eeda ho\u1eb7c b\u1ea3o m\u1eadt<\/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\/loi-401-la-gi\/#7-Cookie-va-cache-cua-trinh-duyet-da-bi-loi-thoi\" >7. Cookie v\u00e0 cache c\u1ee7a tr\u00ecnh duy\u1ec7t \u0111\u00e3 b\u1ecb l\u1ed7i th\u1eddi<\/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\/loi-401-la-gi\/#8-Xung-dot-Plugin-hoac-Theme-dac-biet-voi-WordPress\" >8. Xung \u0111\u1ed9t Plugin ho\u1eb7c Theme (\u0111\u1eb7c bi\u1ec7t v\u1edbi WordPress)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#9-URL-khong-hop-le-hoac-link-da-loi-thoi\" >9. URL kh\u00f4ng h\u1ee3p l\u1ec7 ho\u1eb7c link \u0111\u00e3 l\u1ed7i th\u1eddi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#10-Thieu-header-Authorization\" >10. Thi\u1ebfu header Authorization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#11-Token-xac-thuc-khong-hop-le-hoac-da-het-han\" >11. Token x\u00e1c th\u1ef1c kh\u00f4ng h\u1ee3p l\u1ec7 ho\u1eb7c \u0111\u00e3 h\u1ebft h\u1ea1n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Cach-khac-phuc-loi-401-nhanh-hieu-qua-nhat\" >C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i 401 nhanh, hi\u1ec7u qu\u1ea3 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-16\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#1-Kiem-tra-lai-thong-tin-dang-nhap\" >1. Ki\u1ec3m tra l\u1ea1i th\u00f4ng tin \u0111\u0103ng nh\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#2-Xin-cap-quyen\" >2. Xin c\u1ea5p quy\u1ec1n<\/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\/loi-401-la-gi\/#3-Kiem-tra-he-thong-an-ninh\" >3. Ki\u1ec3m tra h\u1ec7 th\u1ed1ng an ninh<\/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\/loi-401-la-gi\/#4-Don-dep-cookie\" >4. D\u1ecdn d\u1eb9p cookie<\/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\/loi-401-la-gi\/#5-Lien-he-voi-cac-chuyen-gia\" >5. Li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#6-Kiem-tra-lai-may-chu\" >6. Ki\u1ec3m tra l\u1ea1i m\u00e1y ch\u1ee7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#7-Khoi-dong-lai-phien-lam-viec\" >7. Kh\u1edfi \u0111\u1ed9ng l\u1ea1i phi\u00ean l\u00e0m vi\u1ec7c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#8-Su-dung-HTTPS\" >8. S\u1eed d\u1ee5ng HTTPS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#9-Nang-cap-phan-mem\" >9. N\u00e2ng c\u1ea5p ph\u1ea7n m\u1ec1m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#10-Lien-he-nha-cung-cap-dich-vu\" >10. Li\u00ean h\u1ec7 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Phan-biet-loi-401-Unauthorized-va-loi-403-Forbidden\" >Ph\u00e2n bi\u1ec7t l\u1ed7i 401 Unauthorized v\u00e0 l\u1ed7i 403 Forbidden<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Cach-phong-tranh-loi-401-trong-tuong-lai\" >C\u00e1ch ph\u00f2ng tr\u00e1nh l\u1ed7i 401 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-28\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Thiet-lap-co-che-token-refresh-tu-dong\" >Thi\u1ebft l\u1eadp c\u01a1 ch\u1ebf token refresh t\u1ef1 \u0111\u1ed9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Dung-short-lived-access-token\" >D\u00f9ng short-lived access token<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Cap-nhat-lai-middleware-auth-de-log-chi-tiet\" >C\u1eadp nh\u1eadt l\u1ea1i middleware auth \u0111\u1ec3 log chi ti\u1ebft<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Trien-khai-monitoring-theo-doi-ti-le-401\" >Tri\u1ec3n khai monitoring theo d\u00f5i t\u1ec9 l\u1ec7 401<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Tai-lieu-hoa-ro-quy-trinh-xac-thuc\" >T\u00e0i li\u1ec7u h\u00f3a r\u00f5 quy tr\u00ecnh x\u00e1c th\u1ef1c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Cau-hoi-thuong-gap-ve-loi-401-FAQ\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 l\u1ed7i 401 (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Loi-401-co-anh-huong-den-SEO-khong\" >L\u1ed7i 401 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Vi-sao-token-hop-le-van-bi-401\" >V\u00ec sao token h\u1ee3p l\u1ec7 v\u1eabn b\u1ecb 401?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Loi-401-co-nguy-hiem-khong\" >L\u1ed7i 401 c\u00f3 nguy hi\u1ec3m kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/interdata.vn\/blog\/loi-401-la-gi\/#Tai-sao-toi-van-gap-loi-401-sau-khi-xoa-cache\" >T\u1ea1i sao t\u00f4i v\u1eabn g\u1eb7p l\u1ed7i 401 sau khi x\u00f3a cache?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<div class=\"geo-summary\" style=\"background: #f0f7ff; border-left: 4px solid #0C3FF4; padding: 16px 20px; margin-bottom: 28px; border-radius: 4px;\">\n<p><strong>T\u00f3m t\u1eaft nhanh \u2014 L\u1ed7i 401 Unauthorized<\/strong><\/p>\n<ul style=\"margin: 8px 0 0 0; padding-left: 18px;\">\n<li><strong>L\u1ed7i 401 l\u00e0 g\u00ec:<\/strong> M\u00e3 HTTP b\u00e1o hi\u1ec7u server t\u1eeb ch\u1ed1i request v\u00ec thi\u1ebfu ho\u1eb7c sai th\u00f4ng tin x\u00e1c th\u1ef1c<\/li>\n<li><strong>Kh\u00e1c l\u1ed7i 403:<\/strong> 401 = ch\u01b0a x\u00e1c th\u1ef1c (c\u00f3 th\u1ec3 fix b\u1eb1ng \u0111\u0103ng nh\u1eadp \u0111\u00fang); 403 = b\u1ecb c\u1ea5m d\u00f9 \u0111\u00e3 x\u00e1c th\u1ef1c<\/li>\n<li><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong> Sai m\u1eadt kh\u1ea9u, cache\/cookie l\u1ed7i th\u1eddi, plugin WordPress xung \u0111\u1ed9t, URL sai, Authorization header thi\u1ebfu<\/li>\n<li><strong>C\u00e1ch fix nhanh nh\u1ea5t:<\/strong> X\u00f3a cache tr\u00ecnh duy\u1ec7t \u2192 ki\u1ec3m tra l\u1ea1i URL \u2192 th\u1eed \u0111\u0103ng nh\u1eadp l\u1ea1i<\/li>\n<li><strong>Fix ph\u00eda server (dev):<\/strong> Ki\u1ec3m tra c\u1ea5u h\u00ecnh .htaccess, WWW-Authenticate header, JWT token<\/li>\n<\/ul>\n<\/div>\n<p><strong>L\u1ed7i 401 Unauthorized<\/strong> x\u1ea3y ra khi m\u00e1y ch\u1ee7 nh\u1eadn \u0111\u01b0\u1ee3c request nh\u01b0ng t\u1eeb ch\u1ed1i x\u1eed l\u00fd v\u00ec thi\u1ebfu ho\u1eb7c sai th\u00f4ng tin x\u00e1c th\u1ef1c \u2014 kh\u00e1c ho\u00e0n to\u00e0n v\u1edbi l\u1ed7i 403 (b\u1ecb c\u1ea5m truy c\u1eadp) hay 404 (kh\u00f4ng t\u00ecm th\u1ea5y trang). B\u1ea1n v\u1eabn \u0111ang truy c\u1eadp \u0111\u00fang \u0111\u1ecba ch\u1ec9, nh\u01b0ng m\u00e1y ch\u1ee7 kh\u00f4ng bi\u1ebft b\u1ea1n l\u00e0 ai.<\/p>\n<p>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t: sai m\u1eadt kh\u1ea9u, session token h\u1ebft h\u1ea1n, ho\u1eb7c Authorization header b\u1ecb thi\u1ebfu trong request. B\u00e0i n\u00e0y \u0111i th\u1eb3ng v\u00e0o t\u1eebng nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch fix t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi-401-la-gi\"><\/span>L\u1ed7i 401 l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_40673\" aria-describedby=\"caption-attachment-40673\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-40673\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Loi-401-Unauthorized-1024x683.jpg\" alt=\"L\u1ed7i 401 Unauthorized\" width=\"800\" height=\"533\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Loi-401-Unauthorized-1024x683.jpg 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Loi-401-Unauthorized-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Loi-401-Unauthorized-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Loi-401-Unauthorized.jpg 1080w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-40673\" class=\"wp-caption-text\">L\u1ed7i 401 Unauthorized<\/figcaption><\/figure>\n<p><strong> (hay L\u1ed7i Y\u00eau c\u1ea7u X\u00e1c th\u1ef1c)<\/strong> l\u00e0 m\u1ed9t m\u00e3 tr\u1ea1ng th\u00e1i HTTP cho bi\u1ebft y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n \u0111\u1ebfn m\u00e1y ch\u1ee7 web (server) \u0111\u00e3 b\u1ecb t\u1eeb ch\u1ed1i v\u00ec thi\u1ebfu th\u00f4ng tin x\u00e1c th\u1ef1c h\u1ee3p l\u1ec7. N\u00f3i m\u1ed9t c\u00e1ch kh\u00e1c, m\u00e1y ch\u1ee7 kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh b\u1ea1n l\u00e0 ai, ho\u1eb7c b\u1ea1n \u0111\u00e3 cung c\u1ea5p th\u00f4ng tin \u0111\u0103ng nh\u1eadp kh\u00f4ng ch\u00ednh x\u00e1c.<\/p>\n<p>\u0110\u00e2y \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t l\u1ed7i t\u1eeb ph\u00eda ng\u01b0\u1eddi d\u00f9ng (client-side error), v\u00ec nguy\u00ean nh\u00e2n th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb tr\u00ecnh duy\u1ec7t ho\u1eb7c th\u00f4ng tin m\u00e0 b\u1ea1n g\u1eedi \u0111i. Tuy nhi\u00ean, trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, vi\u1ec7c kh\u1eafc ph\u1ee5c l\u1ea1i \u0111\u00f2i h\u1ecfi s\u1ef1 can thi\u1ec7p t\u1eeb ph\u00eda qu\u1ea3n tr\u1ecb vi\u00ean trang web.<\/p>\n<p><strong>V\u00ed d\u1ee5<\/strong>: H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng th\u1ebf n\u00e0y, b\u1ea1n \u0111ang c\u1ed1 g\u1eafng v\u00e0o m\u1ed9t c\u00e2u l\u1ea1c b\u1ed9 VIP, nh\u01b0ng l\u1ea1i qu\u00ean mang theo th\u1ebb th\u00e0nh vi\u00ean. L\u00fac n\u00e0y, b\u1ea3o v\u1ec7 (ch\u00ednh l\u00e0 m\u00e1y ch\u1ee7 web) s\u1ebd kh\u00f4ng cho b\u1ea1n v\u00e0o, v\u00e0 b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o t\u1eeb ch\u1ed1i &#8211; \u0111\u00f3 ch\u00ednh l\u00e0 l\u1ed7i 401 Unauthorized.<\/p>\n<p>T\u00f9y thu\u1ed9c v\u00e0o t\u1eebng trang web v\u00e0 tr\u00ecnh duy\u1ec7t, th\u00f4ng b\u00e1o l\u1ed7i 401 c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb d\u01b0\u1edbi nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, nh\u01b0ng \u0111\u1ec1u mang \u00fd ngh\u0129a t\u01b0\u01a1ng t\u1ef1:<\/p>\n<ul>\n<li>401 Unauthorized<\/li>\n<li>Authorization Required<\/li>\n<li>HTTP Error 401 &#8211; Unauthorized<\/li>\n<li>L\u1ed7i HTTP 401<\/li>\n<li>&#8220;You are not authorized to view this page&#8221;<\/li>\n<li>&#8220;The page you are trying to access requires authentication&#8221;<\/li>\n<li>&#8220;The request requires user authentication&#8221;<\/li>\n<\/ul>\n<p>L\u1ed7i n\u00e0y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t trang tr\u1eafng, m\u1ed9t trang web t\u1ea1m th\u1eddi, ho\u1eb7c m\u1ed9t th\u00f4ng b\u00e1o l\u1ed7i ngay trong tr\u00ecnh duy\u1ec7t. \u0110i k\u00e8m v\u1edbi \u0111\u00f3 l\u00e0 m\u00e3 l\u1ed7i HTTP 401, cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 nguy\u00ean nh\u00e2n v\u00e0 h\u01b0\u1edbng d\u1eabn ng\u01b0\u1eddi d\u00f9ng c\u00e1ch x\u1eed l\u00fd.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bang-so-sanh-401-vs-403-400-404\"><\/span>B\u1ea3ng so s\u00e1nh 401 vs 403 400, 404<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh gi\u1eefa l\u1ed7i 401 vs 403 400, 404:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin: 20px 0;\">\n<thead style=\"background: #0C3FF4; color: white;\">\n<tr>\n<th style=\"padding: 10px; text-align: left;\">M\u00e3 l\u1ed7i<\/th>\n<th style=\"padding: 10px; text-align: left;\">\u00dd ngh\u0129a<\/th>\n<th style=\"padding: 10px; text-align: left;\">Nguy\u00ean nh\u00e2n ch\u00ednh<\/th>\n<th style=\"padding: 10px; text-align: left;\">Ai fix?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px;\"><strong>401<\/strong><\/td>\n<td style=\"padding: 10px;\">Ch\u01b0a x\u00e1c th\u1ef1c<\/td>\n<td style=\"padding: 10px;\">Sai\/thi\u1ebfu th\u00f4ng tin \u0111\u0103ng nh\u1eadp<\/td>\n<td style=\"padding: 10px;\">Ng\u01b0\u1eddi d\u00f9ng (\u0111\u0103ng nh\u1eadp l\u1ea1i)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px;\"><strong>403<\/strong><\/td>\n<td style=\"padding: 10px;\">B\u1ecb c\u1ea5m truy c\u1eadp<\/td>\n<td style=\"padding: 10px;\">Kh\u00f4ng c\u00f3 quy\u1ec1n d\u00f9 \u0111\u00e3 x\u00e1c th\u1ef1c<\/td>\n<td style=\"padding: 10px;\">Admin web\/server<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px;\"><strong>404<\/strong><\/td>\n<td style=\"padding: 10px;\">Kh\u00f4ng t\u00ecm th\u1ea5y<\/td>\n<td style=\"padding: 10px;\">URL sai ho\u1eb7c trang \u0111\u00e3 x\u00f3a<\/td>\n<td style=\"padding: 10px;\">Ki\u1ec3m tra l\u1ea1i URL<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px;\"><strong>400<\/strong><\/td>\n<td style=\"padding: 10px;\">Request sai c\u00fa ph\u00e1p<\/td>\n<td style=\"padding: 10px;\">Request b\u1ecb l\u1ed7i format, header sai<\/td>\n<td style=\"padding: 10px;\">Developer (fix code)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Nguyen-nhan-pho-bien-gay-ra-loi-401-tren-website\"><\/span>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i 401 tr\u00ean website<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c nguy\u00ean nh\u00e2n l\u1ed7i 401 l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 kh\u1eafc ph\u1ee5c v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch tri\u1ec7t \u0111\u1ec3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng l\u00fd do ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp t\u1eeb \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn ph\u1ee9c t\u1ea1p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Nhap-sai-thong-tin-xac-thuc\"><\/span>1. Nh\u1eadp sai th\u00f4ng tin x\u00e1c th\u1ef1c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nh\u1eadp sai th\u00f4ng tin x\u00e1c th\u1ef1c l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t, gi\u1ed1ng nh\u01b0 b\u1ea1n g\u00f5 sai m\u1eadt kh\u1ea9u wifi v\u1eady. \u0110\u00e2y l\u00e0 l\u00fd do r\u00f5 r\u00e0ng nh\u1ea5t. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e3 nh\u1eadp sai t\u00ean ng\u01b0\u1eddi d\u00f9ng (username), m\u1eadt kh\u1ea9u (password), ho\u1eb7c c\u1ea3 hai. H\u1ec7 th\u1ed1ng s\u1ebd ngay l\u1eadp t\u1ee9c t\u1eeb ch\u1ed1i v\u00e0 tr\u1ea3 v\u1ec1 l\u1ed7i 401 \u0111\u1ec3 th\u00f4ng b\u00e1o r\u1eb1ng th\u00f4ng tin x\u00e1c th\u1ef1c b\u1ea1n cung c\u1ea5p kh\u00f4ng kh\u1edbp v\u1edbi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Quen-%E2%80%9Cgia-han-the-thanh-vien%E2%80%9D-Tai-khoan-bi-khoa-hoac-het-han\"><\/span>2. Qu\u00ean &#8220;gia h\u1ea1n th\u1ebb th\u00e0nh vi\u00ean&#8221; (T\u00e0i kho\u1ea3n b\u1ecb kh\u00f3a ho\u1eb7c h\u1ebft h\u1ea1n)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00f4i khi, t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 b\u1ecb kh\u00f3a ho\u1eb7c v\u00f4 hi\u1ec7u h\u00f3a b\u1edfi qu\u1ea3n tr\u1ecb vi\u00ean website, v\u00ed d\u1ee5 nh\u01b0 do vi ph\u1ea1m quy \u0111\u1ecbnh ho\u1eb7c do l\u00e2u ng\u00e0y kh\u00f4ng s\u1eed d\u1ee5ng. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, d\u00f9 b\u1ea1n c\u00f3 nh\u1eadp \u0111\u00fang th\u00f4ng tin \u0111\u0103ng nh\u1eadp th\u00ec v\u1eabn s\u1ebd g\u1eb7p l\u1ed7i truy c\u1eadp b\u1ecb t\u1eeb ch\u1ed1i.<\/p>\n<figure id=\"attachment_40675\" aria-describedby=\"caption-attachment-40675\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-40675 size-full\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-nhan-gay-ra-loi-401.jpg\" alt=\"Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i 401\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-nhan-gay-ra-loi-401.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-nhan-gay-ra-loi-401-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-nhan-gay-ra-loi-401-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-40675\" class=\"wp-caption-text\">Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i 401<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"3-Quyen-truy-cap-bi-gioi-han\"><\/span>3. Quy\u1ec1n truy c\u1eadp b\u1ecb gi\u1edbi h\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3 nh\u1eefng khu v\u1ef1c &#8220;b\u00ed m\u1eadt&#8221; tr\u00ean website m\u00e0 ch\u1ec9 nh\u1eefng ng\u01b0\u1eddi d\u00f9ng c\u00f3 quy\u1ec1n h\u1ea1n nh\u1ea5t \u0111\u1ecbnh m\u1edbi \u0111\u01b0\u1ee3c truy c\u1eadp. N\u1ebfu t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n kh\u00f4ng c\u00f3 \u0111\u1ee7 &#8220;v\u00e9 VIP&#8221; (quy\u1ec1n truy c\u1eadp), b\u1ea1n s\u1ebd g\u1eb7p l\u1ed7i 401 Unauthorized Error khi c\u1ed1 g\u1eafng &#8220;x\u00e2m nh\u1eadp&#8221; v\u00e0o nh\u1eefng khu v\u1ef1c n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Loi-cau-hinh-trang-web\"><\/span>4. L\u1ed7i c\u1ea5u h\u00ecnh trang web<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu m\u1ed9t trang web ho\u1eb7c \u1ee9ng d\u1ee5ng c\u1ea5u h\u00ecnh sai c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i 401 Unauthorized.<\/p>\n<p><strong>V\u00ed d\u1ee5<\/strong>: N\u1ebfu trang web \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 y\u00eau c\u1ea7u x\u00e1c th\u1ef1c truy c\u1eadp nh\u01b0ng th\u00f4ng tin x\u00e1c th\u1ef1c kh\u00f4ng \u0111\u01b0\u1ee3c cung c\u1ea5p trong y\u00eau c\u1ea7u th\u00ec m\u00e1y ch\u1ee7 s\u1ebd tr\u1ea3 v\u1ec1 m\u00e3 l\u1ed7i 401 Unauthorized.<\/p>\n<figure id=\"attachment_22393\" aria-describedby=\"caption-attachment-22393\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22393\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nguyen-nhan-gay-ra-loi-401-tren-website.jpg\" alt=\"Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i 401 tr\u00ean website\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nguyen-nhan-gay-ra-loi-401-tren-website.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nguyen-nhan-gay-ra-loi-401-tren-website-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nguyen-nhan-gay-ra-loi-401-tren-website-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nguyen-nhan-gay-ra-loi-401-tren-website-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-22393\" class=\"wp-caption-text\">Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i 401 tr\u00ean website<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"5-Van-de-may-chu-bi-qua-tai\"><\/span>5. V\u1ea5n \u0111\u1ec1 m\u00e1y ch\u1ee7 b\u1ecb qu\u00e1 t\u1ea3i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ed1ng nh\u01b0 m\u1ed9t nh\u00e0 h\u00e0ng \u0111\u00f4ng kh\u00e1ch, m\u00e1y ch\u1ee7 web c\u0169ng c\u00f3 th\u1ec3 b\u1ecb qu\u00e1 t\u1ea3i. Khi \u0111\u00f3, n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng x\u1eed l\u00fd k\u1ecbp c\u00e1c y\u00eau c\u1ea7u x\u00e1c th\u1ef1c v\u00e0 tr\u1ea3 v\u1ec1 l\u1ed7i 401.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6-Su-co-voi-tuong-lua-hoac-bao-mat\"><\/span>6. S\u1ef1 c\u1ed1 v\u1edbi t\u01b0\u1eddng l\u1eeda ho\u1eb7c b\u1ea3o m\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u01b0\u1eddng l\u1eeda v\u00e0 c\u00e1c ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ea1n kh\u1ecfi c\u00e1c m\u1ed1i nguy h\u1ea1i tr\u1ef1c tuy\u1ebfn. Tuy nhi\u00ean, \u0111\u00f4i khi ch\u00fang l\u1ea1i &#8220;qu\u00e1 c\u1ea9n th\u1eadn&#8221; v\u00e0 <strong>ch\u1eb7n lu\u00f4n c\u1ea3 nh\u1eefng truy c\u1eadp h\u1ee3p l\u1ec7<\/strong>, d\u1eabn \u0111\u1ebfn l\u1ed7i 401.<\/p>\n<p>L\u1ed7i 401 c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n do nhi\u1ec1u nguy\u00ean nh\u00e2n, t\u1eeb nh\u1eefng l\u1ed7i \u0111\u01a1n gi\u1ea3n nh\u01b0 nh\u1eadp sai m\u1eadt kh\u1ea9u \u0111\u1ebfn nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p h\u01a1n nh\u01b0 l\u1ed7i c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7, \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7-Cookie-va-cache-cua-trinh-duyet-da-bi-loi-thoi\"><\/span>7. Cookie v\u00e0 cache c\u1ee7a tr\u00ecnh duy\u1ec7t \u0111\u00e3 b\u1ecb l\u1ed7i th\u1eddi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cache (b\u1ed9 nh\u1edb \u0111\u1ec7m) v\u00e0 cookie l\u00e0 nh\u1eefng d\u1eef li\u1ec7u m\u00e0 tr\u00ecnh duy\u1ec7t l\u01b0u l\u1ea1i \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 t\u1ea3i trang v\u00e0 duy tr\u00ec phi\u00ean \u0111\u0103ng nh\u1eadp. Tuy nhi\u00ean, sau m\u1ed9t th\u1eddi gian, c\u00e1c d\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 tr\u1edf n\u00ean l\u1ed7i th\u1eddi ho\u1eb7c b\u1ecb h\u1ecfng. Khi \u0111\u00f3, tr\u00ecnh duy\u1ec7t g\u1eedi th\u00f4ng tin x\u00e1c th\u1ef1c c\u0169 \u0111\u1ebfn m\u00e1y ch\u1ee7, d\u1eabn \u0111\u1ebfn xung \u0111\u1ed9t v\u00e0 g\u00e2y ra l\u1ed7i 401. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng th\u00f4ng th\u01b0\u1eddng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8-Xung-dot-Plugin-hoac-Theme-dac-biet-voi-WordPress\"><\/span>8. Xung \u0111\u1ed9t Plugin ho\u1eb7c Theme (\u0111\u1eb7c bi\u1ec7t v\u1edbi WordPress)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng qu\u1ea3n tr\u1ecb n\u1ed9i dung nh\u01b0 WordPress, m\u1ed9t plugin b\u1ea3o m\u1eadt ho\u1eb7c m\u1ed9t theme \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh k\u00e9m c\u00f3 th\u1ec3 can thi\u1ec7p v\u00e0o qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c. Ch\u00fang c\u00f3 th\u1ec3 ch\u1eb7n c\u00e1c y\u00eau c\u1ea7u h\u1ee3p l\u1ec7 m\u1ed9t c\u00e1ch v\u00f4 t\u00ecnh, \u0111\u1eb7c bi\u1ec7t l\u00e0 sau khi c\u1eadp nh\u1eadt, g\u00e2y ra l\u1ed7i 401 kh\u00f3 hi\u1ec3u ngay c\u1ea3 khi b\u1ea1n nh\u1eadp \u0111\u00fang th\u00f4ng tin \u0111\u0103ng nh\u1eadp.<\/p>\n<p>B\u00e0i vi\u1ebft v\u1ec1 <strong><a href=\"https:\/\/interdata.vn\/blog\/bao-mat-hosting-cpanel\/\">b\u1ea3o m\u1eadt hosting cPanel<\/a><\/strong> c\u00f3 h\u01b0\u1edbng d\u1eabn ki\u1ec3m tra v\u00e0 t\u1eaft plugin t\u1eeb file manager khi kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c WP Admin.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9-URL-khong-hop-le-hoac-link-da-loi-thoi\"><\/span>9. URL kh\u00f4ng h\u1ee3p l\u1ec7 ho\u1eb7c link \u0111\u00e3 l\u1ed7i th\u1eddi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00f4i khi, l\u1ed7i xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed9t \u0111i\u1ec1u r\u1ea5t \u0111\u01a1n gi\u1ea3n l\u00e0 b\u1ea1n \u0111\u00e3 g\u00f5 sai \u0111\u1ecba ch\u1ec9 URL. M\u1ed9t s\u1ed1 trang web c\u00f3 c\u00e1c t\u00e0i nguy\u00ean \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, v\u00e0 ch\u1ec9 m\u1ed9t k\u00fd t\u1ef1 sai trong \u0111\u01b0\u1eddng d\u1eabn c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn m\u00e1y ch\u1ee7 kh\u00f4ng nh\u1eadn d\u1ea1ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u00e0 tr\u1ea3 v\u1ec1 l\u1ed7i 401. C\u00e1c \u0111\u01b0\u1eddng link c\u0169, \u0111\u00e3 h\u1ebft h\u1ea1n c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra t\u00ecnh tr\u1ea1ng t\u01b0\u01a1ng t\u1ef1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"10-Thieu-header-Authorization\"><\/span>10. Thi\u1ebfu header Authorization<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t nguy\u00ean nh\u00e2n k\u1ef9 thu\u1eadt. Khi giao ti\u1ebfp v\u1edbi m\u00e1y ch\u1ee7, tr\u00ecnh duy\u1ec7t c\u1ea7n g\u1eedi m\u1ed9t &#8220;ti\u00eau \u0111\u1ec1&#8221; (header) c\u00f3 t\u00ean l\u00e0 Authorization ch\u1ee9a th\u00f4ng tin x\u00e1c th\u1ef1c (v\u00ed d\u1ee5 nh\u01b0 token). N\u1ebfu header n\u00e0y b\u1ecb thi\u1ebfu ho\u1eb7c c\u00f3 \u0111\u1ecbnh d\u1ea1ng sai, m\u00e1y ch\u1ee7 s\u1ebd kh\u00f4ng c\u00f3 c\u01a1 s\u1edf \u0111\u1ec3 x\u00e1c th\u1ef1c v\u00e0 ngay l\u1eadp t\u1ee9c tr\u1ea3 v\u1ec1 l\u1ed7i 401.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"11-Token-xac-thuc-khong-hop-le-hoac-da-het-han\"><\/span>11. Token x\u00e1c th\u1ef1c kh\u00f4ng h\u1ee3p l\u1ec7 ho\u1eb7c \u0111\u00e3 h\u1ebft h\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i s\u1eed d\u1ee5ng API, vi\u1ec7c x\u00e1c th\u1ef1c th\u01b0\u1eddng d\u1ef1a tr\u00ean &#8220;token&#8221; (v\u00ed d\u1ee5: JSON Web Tokens &#8211; JWT). M\u1ed7i token c\u00f3 m\u1ed9t v\u00f2ng \u0111\u1eddi nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<p>N\u1ebfu token b\u1ea1n \u0111ang s\u1eed d\u1ee5ng \u0111\u00e3 h\u1ebft h\u1ea1n, ho\u1eb7c ch\u1eef k\u00fd c\u1ee7a token kh\u00f4ng h\u1ee3p l\u1ec7, m\u00e1y ch\u1ee7 s\u1ebd coi \u0111\u00f3 l\u00e0 m\u1ed9t y\u00eau c\u1ea7u kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c v\u00e0 tr\u1ea3 v\u1ec1 l\u1ed7i 401. \u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 g\u1ee1 l\u1ed7i \u1ee9ng d\u1ee5ng.<\/p>\n<p>C\u00f3 r\u1ea5t nhi\u1ec1u l\u00fd do sinh ra l\u1ed7i 401 Unauthorized tr\u00ean website. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n x\u00e1c \u0111\u1ecbnh c\u1ee5 th\u1ec3 nguy\u00ean nh\u00e2n l\u1ed7i 401 l\u00e0 g\u00ec v\u00e0 c\u00f3 bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c ph\u00f9 h\u1ee3p.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-khac-phuc-loi-401-nhanh-hieu-qua-nhat\"><\/span>C\u00e1ch kh\u1eafc ph\u1ee5c l\u1ed7i 401 nhanh, hi\u1ec7u qu\u1ea3 nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u1ebfu \u0111\u00e3 kh\u00e1m ph\u00e1 \u0111\u01b0\u1ee3c nguy\u00ean nh\u00e2n g\u00e2y n\u00ean l\u1ed7i 401 l\u00e0 g\u00ec th\u00ec \u0111\u00e2y l\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c ch\u00fang. \u0110\u1ec3 s\u1eeda l\u1ed7i 401 Unauthorized khi truy c\u1eadp webiste, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau \u0111\u00e2y:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Kiem-tra-lai-thong-tin-dang-nhap\"><\/span>1. Ki\u1ec3m tra l\u1ea1i th\u00f4ng tin \u0111\u0103ng nh\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L\u1ed7i 401 th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n khi b\u1ea1n c\u1ed1 g\u1eafng v\u00e0o m\u1ed9t trang web y\u00eau c\u1ea7u &#8220;x\u00e1c th\u1ef1c danh t\u00ednh&#8221;. \u0110\u1ea7u ti\u00ean, h\u00e3y ki\u1ec3m tra k\u1ef9 xem b\u1ea1n \u0111\u00e3 <strong>nh\u1eadp \u0111\u00fang t\u00ean \u0111\u0103ng nh\u1eadp v\u00e0 m\u1eadt kh\u1ea9u ch\u01b0a<\/strong>. C\u00f3 th\u1ec3 b\u1ea1n \u0111\u00e3 g\u00f5 nh\u1ea7m ho\u1eb7c qu\u00ean m\u1ea5t m\u1eadt kh\u1ea9u. H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng &#8220;ch\u00eca kh\u00f3a&#8221; c\u1ee7a b\u1ea1n l\u00e0 ch\u00ednh x\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Xin-cap-quyen\"><\/span>2. Xin c\u1ea5p quy\u1ec1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n \u0111ang c\u1ed1 g\u1eafng truy c\u1eadp v\u00e0o m\u1ed9t t\u00e0i nguy\u00ean \u0111\u1eb7c bi\u1ec7t, h\u00e3y ki\u1ec3m tra xem t\u00e0i kho\u1ea3n c\u1ee7a m\u00ecnh c\u00f3 \u0111\u1ee7 quy\u1ec1n hay kh\u00f4ng. C\u00f3 th\u1ec3 b\u1ea1n c\u1ea7n li\u00ean h\u1ec7 v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean ho\u1eb7c ch\u1ee7 s\u1edf h\u1eefu \u0111\u1ec3 xin c\u1ea5p quy\u1ec1n truy c\u1eadp ph\u00f9 h\u1ee3p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-Kiem-tra-he-thong-an-ninh\"><\/span>3. Ki\u1ec3m tra h\u1ec7 th\u1ed1ng an ninh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00f4i khi, t\u01b0\u1eddng l\u1eeda ho\u1eb7c ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt c\u1ee7a b\u1ea1n l\u1ea1i qu\u00e1 nh\u1ea1y c\u1ea3m v\u00e0 ch\u1eb7n lu\u00f4n c\u1ea3 nh\u1eefng truy c\u1eadp h\u1ee3p l\u1ec7. H\u00e3y th\u1eed ki\u1ec3m tra c\u00e0i \u0111\u1eb7t c\u1ee7a c\u00e1c ph\u1ea7n m\u1ec1m n\u00e0y v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u00fang kh\u00f4ng ch\u1eb7n trang web ho\u1eb7c t\u00e0i nguy\u00ean b\u1ea1n c\u1ea7n truy c\u1eadp. N\u1ebfu c\u1ea7n, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1m th\u1eddi &#8220;v\u00f4 hi\u1ec7u h\u00f3a&#8221; ch\u00fang \u0111\u1ec3 ki\u1ec3m tra xem \u0111\u00e2y c\u00f3 ph\u1ea3i l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i 401 hay kh\u00f4ng.<\/p>\n<figure id=\"attachment_22394\" aria-describedby=\"caption-attachment-22394\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22394\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Kiem-tra-he-thong-an-ninh-nhu-tuong-lua.webp\" alt=\"Ki\u1ec3m tra h\u1ec7 th\u1ed1ng an ninh nh\u01b0 t\u01b0\u1eddng l\u1eeda\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Kiem-tra-he-thong-an-ninh-nhu-tuong-lua.webp 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Kiem-tra-he-thong-an-ninh-nhu-tuong-lua-300x188.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Kiem-tra-he-thong-an-ninh-nhu-tuong-lua-768x480.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Kiem-tra-he-thong-an-ninh-nhu-tuong-lua-750x469.webp 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-22394\" class=\"wp-caption-text\">Ki\u1ec3m tra h\u1ec7 th\u1ed1ng an ninh nh\u01b0 t\u01b0\u1eddng l\u1eeda<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"4-Don-dep-cookie\"><\/span>4. D\u1ecdn d\u1eb9p cookie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n l\u01b0u tr\u1eef th\u00f4ng tin \u0111\u0103ng nh\u1eadp d\u01b0\u1edbi d\u1ea1ng cookie. Th\u1ec9nh tho\u1ea3ng, nh\u1eefng cookie n\u00e0y c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng, g\u00e2y ra l\u1ed7i 401. H\u00e3y th\u1eed &#8220;d\u1ecdn d\u1eb9p&#8221; ch\u00fang b\u1eb1ng c\u00e1ch x\u00f3a cookie c\u1ee7a tr\u00ecnh duy\u1ec7t.<\/p>\n<p>Vi\u1ec7c n\u00e0y gi\u1ed1ng nh\u01b0 b\u1ea1n &#8220;reset&#8221; l\u1ea1i th\u00f4ng tin \u0111\u0103ng nh\u1eadp, \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n \u0111ang s\u1eed d\u1ee5ng th\u00f4ng tin m\u1edbi nh\u1ea5t \u0111\u1ec3 truy c\u1eadp,\u00a0gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n \u0111ang s\u1eed d\u1ee5ng th\u00f4ng tin \u0111\u0103ng nh\u1eadp m\u1edbi nh\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5-Lien-he-voi-cac-chuyen-gia\"><\/span>5. Li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu l\u1ed7i 401 xu\u1ea5t ph\u00e1t t\u1eeb <strong>l\u1ed7i c\u1ea5u h\u00ecnh c\u1ee7a trang web ho\u1eb7c \u1ee9ng d\u1ee5ng<\/strong>, b\u1ea1n c\u1ea7n nh\u1edd \u0111\u1ebfn s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a c\u00e1c chuy\u00ean gia. H\u00e3y li\u00ean h\u1ec7 v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean ho\u1eb7c ch\u1ee7 s\u1edf h\u1eefu trang web \u0111\u1ec3 h\u1ecd ki\u1ec3m tra v\u00e0 &#8220;s\u1eeda ch\u1eefa&#8221; c\u00e1c thi\u1ebft l\u1eadp.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6-Kiem-tra-lai-may-chu\"><\/span>6. Ki\u1ec3m tra l\u1ea1i m\u00e1y ch\u1ee7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u00e1y ch\u1ee7 gi\u1ed1ng nh\u01b0 &#8220;tr\u00e1i tim&#8221; c\u1ee7a trang web. N\u1ebfu &#8220;tr\u00e1i tim&#8221; n\u00e0y g\u1eb7p tr\u1ee5c tr\u1eb7c ho\u1eb7c l\u00e0m vi\u1ec7c qu\u00e1 s\u1ee9c, n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng x\u1eed l\u00fd \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u truy c\u1eadp c\u1ee7a b\u1ea1n, d\u1eabn \u0111\u1ebfn l\u1ed7i 401. B\u1ea1n c\u00f3 th\u1ec3 th\u1eed truy c\u1eadp l\u1ea1i sau m\u1ed9t l\u00fac ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u1ec3 ki\u1ec3m tra xem m\u00e1y ch\u1ee7 c\u00f3 \u0111ang &#8220;kh\u1ecfe&#8221; hay kh\u00f4ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7-Khoi-dong-lai-phien-lam-viec\"><\/span>7. Kh\u1edfi \u0111\u1ed9ng l\u1ea1i phi\u00ean l\u00e0m vi\u1ec7c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ed1ng nh\u01b0 m\u00e1y t\u00ednh c\u1ea7n \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng l\u1ea1i, phi\u00ean l\u00e0m vi\u1ec7c tr\u00ean website c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c &#8220;l\u00e0m m\u1edbi&#8221; \u0111\u1ecbnh k\u1ef3. N\u1ebfu b\u1ea1n g\u1eb7p 401 Unauthorized do phi\u00ean l\u00e0m vi\u1ec7c h\u1ebft h\u1ea1n ho\u1eb7c b\u1ecb gi\u00e1n \u0111o\u1ea1n, h\u00e3y th\u1eed \u0111\u0103ng xu\u1ea5t kh\u1ecfi trang web v\u00e0 \u0111\u0103ng nh\u1eadp l\u1ea1i. Vi\u1ec7c n\u00e0y s\u1ebd gi\u00fap t\u1ea1o ra m\u1ed9t &#8220;phi\u00ean l\u00e0m vi\u1ec7c&#8221; m\u1edbi, lo\u1ea1i b\u1ecf c\u00e1c l\u1ed7i c\u00f3 th\u1ec3 x\u1ea3y ra.<\/p>\n<figure id=\"attachment_22395\" aria-describedby=\"caption-attachment-22395\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22395\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Khoi-dong-lai-phien-lam-viec.jpg\" alt=\"Kh\u1edfi \u0111\u1ed9ng l\u1ea1i phi\u00ean l\u00e0m vi\u1ec7c\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Khoi-dong-lai-phien-lam-viec.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Khoi-dong-lai-phien-lam-viec-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Khoi-dong-lai-phien-lam-viec-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Khoi-dong-lai-phien-lam-viec-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-22395\" class=\"wp-caption-text\">Kh\u1edfi \u0111\u1ed9ng l\u1ea1i phi\u00ean l\u00e0m vi\u1ec7c<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"8-Su-dung-HTTPS\"><\/span>8. S\u1eed d\u1ee5ng HTTPS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>HTTPS l\u00e0 phi\u00ean b\u1ea3n b\u1ea3o m\u1eadt c\u1ee7a HTTP, gi\u00fap <strong>m\u00e3 h\u00f3a th\u00f4ng tin trao \u0111\u1ed5i gi\u1eefa b\u1ea1n v\u00e0 trang web<\/strong>. Khi truy c\u1eadp v\u00e0o c\u00e1c trang web y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp, h\u00e3y \u01b0u ti\u00ean s\u1eed d\u1ee5ng HTTPS (\u0111\u1ecba ch\u1ec9 web b\u1eaft \u0111\u1ea7u b\u1eb1ng https:\/\/). \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap b\u1ea3o v\u1ec7 th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a b\u1ea1n an to\u00e0n h\u01a1n, gi\u1ea3m nguy c\u01a1 g\u1eb7p l\u1ed7i 401.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9-Nang-cap-phan-mem\"><\/span>9. N\u00e2ng c\u1ea5p ph\u1ea7n m\u1ec1m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m c\u0169 c\u00f3 th\u1ec3 ch\u1ee9a l\u1ed7i b\u1ea3o m\u1eadt ho\u1eb7c kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c y\u00eau c\u1ea7u m\u1edbi, d\u1eabn \u0111\u1ebfn l\u1ed7i 401. H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n \u0111ang s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u1ee7a tr\u00ecnh duy\u1ec7t, h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 c\u00e1c ph\u1ea7n m\u1ec1m li\u00ean quan.<\/p>\n<p>Vi\u1ec7c &#8220;n\u00e2ng c\u1ea5p&#8221; ph\u1ea7n m\u1ec1m gi\u1ed1ng nh\u01b0 b\u1ea1n trang b\u1ecb cho m\u00ecnh nh\u1eefng c\u00f4ng c\u1ee5 m\u1edbi nh\u1ea5t, m\u1ea1nh m\u1ebd nh\u1ea5t \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c l\u1ed7i.<\/p>\n<figure id=\"attachment_22396\" aria-describedby=\"caption-attachment-22396\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22396\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nang-cap-phan-mem.jpg\" alt=\"N\u00e2ng c\u1ea5p ph\u1ea7n m\u1ec1m\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nang-cap-phan-mem.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nang-cap-phan-mem-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nang-cap-phan-mem-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/12\/Nang-cap-phan-mem-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-22396\" class=\"wp-caption-text\">N\u00e2ng c\u1ea5p ph\u1ea7n m\u1ec1m<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"10-Lien-he-nha-cung-cap-dich-vu\"><\/span>10. Li\u00ean h\u1ec7 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n \u0111\u00e3 th\u1eed t\u1ea5t c\u1ea3 c\u00e1c c\u00e1ch fix l\u1ed7i tr\u00ean m\u00e0 v\u1eabn kh\u00f4ng x\u1eed l\u00fd \u0111\u01b0\u1ee3c l\u1ed7i 401, \u0111\u1eebng ng\u1ea7n ng\u1ea1i li\u00ean h\u1ec7 v\u1edbi &#8220;\u0111\u1ed9i c\u1ee9u h\u1ed9&#8221; &#8211; nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 ho\u1eb7c nh\u00e0 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng. H\u1ecd s\u1ebd c\u00f3 nh\u1eefng chuy\u00ean gia gi\u00e0u kinh nghi\u1ec7m \u0111\u1ec3 gi\u00fap b\u1ea1n gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<p>Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u1ef1 m\u00ecnh x\u1eed l\u00fd m\u1ecdi vi\u1ec7c. N\u1ebfu b\u1ea1n g\u1eb7p l\u1ed7i nghi\u00eam tr\u1ecdng, l\u1ed7i m\u00e3 h\u00f3a ho\u1eb7c kh\u00f4ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p tr\u00ean, vui l\u00f2ng li\u00ean h\u1ec7 ngay v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 website. H\u1ecd s\u1ebd h\u1ed7 tr\u1ee3 b\u1ea1n m\u1ed9t c\u00e1ch chuy\u00ean nghi\u1ec7p v\u00e0 uy t\u00edn.<\/p>\n<div class=\"cta-box\" style=\"background: #f0f7ff; border-left: 4px solid #0C3FF4; padding: 20px; margin: 30px 0; border-radius: 4px;\"><strong>\ud83d\udee1\ufe0f G\u1eb7p l\u1ed7i 401 li\u00ean t\u1ee5c tr\u00ean server \u2014 c\u1ea7n ki\u1ec3m tra c\u1ea5u h\u00ecnh chuy\u00ean s\u00e2u?<\/strong>N\u1ebfu b\u1ea1n \u0111ang d\u00f9ng VPS ho\u1eb7c Dedicated Server t\u1ea1i InterData kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c ngu\u1ed3n g\u1ed1c l\u1ed7i 401, \u0111\u1ed9i k\u1ef9 thu\u1eadt InterData h\u1ed7 tr\u1ee3 ki\u1ec3m tra c\u1ea5u h\u00ecnh server, .htaccess v\u00e0 access log tr\u1ef1c ti\u1ebfp.<\/p>\n<p><a style=\"background: #0C3FF4; color: white; padding: 10px 20px; border-radius: 4px; text-decoration: none; display: inline-block;\" href=\"https:\/\/interdata.vn\/\">Li\u00ean h\u1ec7 InterData<\/a><\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Phan-biet-loi-401-Unauthorized-va-loi-403-Forbidden\"><\/span>Ph\u00e2n bi\u1ec7t l\u1ed7i 401 Unauthorized v\u00e0 l\u1ed7i 403 Forbidden<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng nh\u1ea7m l\u1eabn gi\u1eefa <strong>l\u1ed7i 401 v\u00e0 403<\/strong>, nh\u01b0ng v\u1ec1 b\u1ea3n ch\u1ea5t, ch\u00fang ho\u00e0n to\u00e0n kh\u00e1c nhau. Vi\u1ec7c ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng hai l\u1ed7i n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n \u0111\u00fang v\u1ea5n \u0111\u1ec1.<\/p>\n<ul>\n<li><strong>L\u1ed7i 401 (Unauthorized &#8211; Ch\u01b0a x\u00e1c th\u1ef1c):<\/strong> M\u00e1y ch\u1ee7 n\u00f3i r\u1eb1ng &#8220;T\u00f4i kh\u00f4ng bi\u1ebft b\u1ea1n l\u00e0 ai&#8221;. B\u1ea1n c\u1ea7n ph\u1ea3i cung c\u1ea5p th\u00f4ng tin x\u00e1c th\u1ef1c (\u0111\u0103ng nh\u1eadp) \u0111\u1ec3 ch\u1ee9ng minh danh t\u00ednh. V\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf kh\u00e2u <strong>X\u00e1c th\u1ef1c (Authentication)<\/strong>.<\/li>\n<li><strong>L\u1ed7i 403 (Forbidden &#8211; B\u1ecb c\u1ea5m):<\/strong> M\u00e1y ch\u1ee7 n\u00f3i r\u1eb1ng &#8220;T\u00f4i bi\u1ebft b\u1ea1n l\u00e0 ai, nh\u01b0ng b\u1ea1n kh\u00f4ng c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o \u0111\u00e2y&#8221;. B\u1ea1n \u0111\u00e3 \u0111\u0103ng nh\u1eadp th\u00e0nh c\u00f4ng v\u00e0 m\u00e1y ch\u1ee7 \u0111\u00e3 x\u00e1c nh\u1eadn danh t\u00ednh c\u1ee7a b\u1ea1n, nh\u01b0ng t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea5p quy\u1ec1n \u0111\u1ec3 xem n\u1ed9i dung n\u00e0y. V\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf kh\u00e2u <strong>\u1ee6y quy\u1ec1n (Authorization)<\/strong>.<\/li>\n<\/ul>\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, Helvetica, sans-serif; font-size: 15px; border: 1px solid #0D6EFD; max-width: 100%;\">\n<thead>\n<tr>\n<th style=\"background: #0D6EFD; color: #ffffff; text-align: left; padding: 12px 14px; width: 28%;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"background: #0D6EFD; color: #ffffff; text-align: left; padding: 12px 14px;\">L\u1ed7i 401 Unauthorized<\/th>\n<th style=\"background: #0D6EFD; color: #ffffff; text-align: left; padding: 12px 14px;\">L\u1ed7i 403 Forbidden<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #ffffff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; vertical-align: top; font-weight: 600;\">B\u1ea3n ch\u1ea5t<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; vertical-align: top;\">X\u00e1c th\u1ef1c th\u1ea5t b\u1ea1i<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; vertical-align: top;\">\u1ee6y quy\u1ec1n th\u1ea5t b\u1ea1i<\/td>\n<\/tr>\n<tr style=\"background: #f8fbff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; vertical-align: top; font-weight: 600;\">V\u00ed d\u1ee5<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; vertical-align: top;\">Sai m\u1eadt kh\u1ea9u \u0111\u0103ng nh\u1eadp<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; vertical-align: top;\">User th\u01b0\u1eddng c\u1ed1 v\u00e0o trang qu\u1ea3n tr\u1ecb<\/td>\n<\/tr>\n<tr style=\"background: #ffffff;\">\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; border-bottom: 1px solid #e6f0ff; vertical-align: top; font-weight: 600;\">H\u00e0nh \u0111\u1ed9ng<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; border-bottom: 1px solid #e6f0ff; vertical-align: top;\">C\u1ea7n \u0111\u0103ng nh\u1eadp l\u1ea1i ho\u1eb7c cung c\u1ea5p th\u00f4ng tin \u0111\u00fang<\/td>\n<td style=\"padding: 12px 14px; border-top: 1px solid #e6f0ff; border-bottom: 1px solid #e6f0ff; vertical-align: top;\">C\u1ea7n \u0111\u01b0\u1ee3c c\u1ea5p quy\u1ec1n t\u1eeb qu\u1ea3n tr\u1ecb vi\u00ean<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>N\u1ebfu b\u1ea1n \u0111ang g\u1eb7p <strong><a href=\"https:\/\/interdata.vn\/blog\/loi-403-forbidden-hosting\/\">l\u1ed7i 403 Forbidden tr\u00ean hosting<\/a><\/strong>, \u0111\u00e2y l\u00e0 b\u00e0i h\u01b0\u1edbng d\u1eabn fix ri\u00eang.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-phong-tranh-loi-401-trong-tuong-lai\"><\/span>C\u00e1ch ph\u00f2ng tr\u00e1nh l\u1ed7i 401 trong t\u01b0\u01a1ng lai<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng, vi\u1ec7c ch\u1ee7 \u0111\u1ed9ng ph\u00f2ng tr\u00e1nh l\u1ed7i 401 kh\u00f4ng ch\u1ec9 c\u1ea3i thi\u1ec7n tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng m\u00e0 c\u00f2n n\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thiet-lap-co-che-token-refresh-tu-dong\"><\/span><strong>Thi\u1ebft l\u1eadp c\u01a1 ch\u1ebf token refresh t\u1ef1 \u0111\u1ed9ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Thay v\u00ec y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng \u0111\u0103ng nh\u1eadp l\u1ea1i m\u1ed7i khi access token h\u1ebft h\u1ea1n, h\u00e3y tri\u1ec3n khai refresh token. C\u01a1 ch\u1ebf n\u00e0y cho ph\u00e9p \u1ee9ng d\u1ee5ng t\u1ef1 \u0111\u1ed9ng l\u1ea5y access token m\u1edbi m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch, gi\u1ea3m thi\u1ec3u gi\u00e1n \u0111o\u1ea1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dung-short-lived-access-token\"><\/span><strong>D\u00f9ng short-lived access token<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1eed d\u1ee5ng access token c\u00f3 v\u00f2ng \u0111\u1eddi ng\u1eafn (v\u00ed d\u1ee5: 15-60 ph\u00fat) k\u1ebft h\u1ee3p v\u1edbi refresh token c\u00f3 v\u00f2ng \u0111\u1eddi d\u00e0i h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ea1n ch\u1ebf r\u1ee7i ro n\u1ebfu access token b\u1ecb l\u1ed9.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cap-nhat-lai-middleware-auth-de-log-chi-tiet\"><\/span><strong>C\u1eadp nh\u1eadt l\u1ea1i middleware auth \u0111\u1ec3 log chi ti\u1ebft<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Middleware x\u00e1c th\u1ef1c c\u1ee7a b\u1ea1n n\u00ean ghi l\u1ea1i (log) chi ti\u1ebft l\u00fd do t\u1eeb ch\u1ed1i m\u1ed9t y\u00eau c\u1ea7u (v\u00ed d\u1ee5: token h\u1ebft h\u1ea1n, ch\u1eef k\u00fd kh\u00f4ng h\u1ee3p l\u1ec7, thi\u1ebfu token). D\u1eef li\u1ec7u n\u00e0y c\u1ef1c k\u1ef3 h\u1eefu \u00edch cho vi\u1ec7c g\u1ee1 l\u1ed7i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Trien-khai-monitoring-theo-doi-ti-le-401\"><\/span><strong>Tri\u1ec3n khai monitoring theo d\u00f5i t\u1ec9 l\u1ec7 401<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t \u0111\u1ec3 theo d\u00f5i s\u1ed1 l\u01b0\u1ee3ng l\u1ed7i 401 theo th\u1eddi gian. Thi\u1ebft l\u1eadp c\u1ea3nh b\u00e1o (alert) khi t\u1ef7 l\u1ec7 l\u1ed7i t\u0103ng \u0111\u1ed9t bi\u1ebfn, gi\u00fap b\u1ea1n ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n nh\u01b0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng ho\u1eb7c l\u1ed7i h\u1ec7 th\u1ed1ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tai-lieu-hoa-ro-quy-trinh-xac-thuc\"><\/span><strong>T\u00e0i li\u1ec7u h\u00f3a r\u00f5 quy tr\u00ecnh x\u00e1c th\u1ef1c<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cung c\u1ea5p t\u00e0i li\u1ec7u r\u00f5 r\u00e0ng, chi ti\u1ebft v\u1ec1 lu\u1ed3ng x\u00e1c th\u1ef1c, c\u00e1ch l\u1ea5y v\u00e0 s\u1eed d\u1ee5ng token cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n trong nh\u00f3m. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o m\u1ecdi ng\u01b0\u1eddi tu\u00e2n th\u1ee7 \u0111\u00fang quy tr\u00ecnh v\u00e0 gi\u1ea3m thi\u1ec3u l\u1ed7i do con ng\u01b0\u1eddi.<\/p>\n<p>Tham kh\u1ea3o th\u00eam <strong><a href=\"https:\/\/interdata.vn\/blog\/cac-loi-hosting-cpanel-pho-bien\/\">c\u00e1c l\u1ed7i HTTP ph\u1ed5 bi\u1ebfn tr\u00ean hosting cPanel <\/a><\/strong>v\u00e0 c\u00e1ch x\u1eed l\u00fd t\u1eeb ph\u00eda qu\u1ea3n tr\u1ecb vi\u00ean<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau-hoi-thuong-gap-ve-loi-401-FAQ\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 l\u1ed7i 401 (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p nh\u1ea5t li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u00ecm hi\u1ec3u <strong>l\u1ed7i 401 l\u00e0 g\u00ec<\/strong> v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 xung quanh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loi-401-co-anh-huong-den-SEO-khong\"><\/span>L\u1ed7i 401 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn SEO kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>C\u00f3, l\u1ed7i 401 \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn SEO.<\/strong> Khi Googlebot (tr\u00ecnh thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a Google) c\u1ed1 g\u1eafng truy c\u1eadp m\u1ed9t trang v\u00e0 nh\u1eadn v\u1ec1 l\u1ed7i 401, n\u00f3 s\u1ebd kh\u00f4ng th\u1ec3 \u0111\u1ecdc v\u00e0 l\u1eadp ch\u1ec9 m\u1ee5c n\u1ed9i dung c\u1ee7a trang \u0111\u00f3. N\u1ebfu t\u00ecnh tr\u1ea1ng n\u00e0y k\u00e9o d\u00e0i, trang c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 b\u1ecb x\u00f3a kh\u1ecfi k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi-sao-token-hop-le-van-bi-401\"><\/span>V\u00ec sao token h\u1ee3p l\u1ec7 v\u1eabn b\u1ecb 401?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3 m\u1ed9t v\u00e0i l\u00fd do:<\/p>\n<ul>\n<li><strong>\u0110\u1ecbnh d\u1ea1ng Header sai:<\/strong> Token c\u00f3 th\u1ec3 h\u1ee3p l\u1ec7, nh\u01b0ng b\u1ea1n \u0111\u00e3 \u0111\u1eb7t sai \u0111\u1ecbnh d\u1ea1ng trong header <code>Authorization<\/code>. \u0110\u1ecbnh d\u1ea1ng chu\u1ea9n th\u01b0\u1eddng l\u00e0 <code>Bearer <\/code>.<\/li>\n<li><strong>L\u1ed7i c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7:<\/strong> M\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh sai c\u00e1ch \u0111\u1ec3 gi\u1ea3i m\u00e3 token (v\u00ed d\u1ee5: sai secret key).<\/li>\n<li><strong>V\u1ea5n \u0111\u1ec1 \u0111\u1ed3ng b\u1ed9 th\u1eddi gian:<\/strong> N\u1ebfu th\u1eddi gian tr\u00ean m\u00e1y ch\u1ee7 t\u1ea1o token v\u00e0 m\u00e1y ch\u1ee7 x\u00e1c th\u1ef1c token kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9, c\u00e1c token c\u00f3 th\u1ec3 b\u1ecb coi l\u00e0 h\u1ebft h\u1ea1n ho\u1eb7c ch\u01b0a h\u1ee3p l\u1ec7.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Loi-401-co-nguy-hiem-khong\"><\/span>L\u1ed7i 401 c\u00f3 nguy hi\u1ec3m kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ea3n th\u00e2n l\u1ed7i 401 kh\u00f4ng nguy hi\u1ec3m, n\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u01a1 ch\u1ebf b\u1ea3o m\u1eadt HTTP. Tuy nhi\u00ean, n\u1ebfu l\u1ed7i n\u00e0y xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean m\u1ed9t c\u00e1ch b\u1ea5t th\u01b0\u1eddng, \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng d\u00f2 m\u1eadt kh\u1ea9u (brute-force attack) ho\u1eb7c m\u1ed9t l\u1ed7i h\u1ec7 th\u1ed1ng nghi\u00eam tr\u1ecdng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra ngay l\u1eadp t\u1ee9c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tai-sao-toi-van-gap-loi-401-sau-khi-xoa-cache\"><\/span>T\u1ea1i sao t\u00f4i v\u1eabn g\u1eb7p l\u1ed7i 401 sau khi x\u00f3a cache?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu vi\u1ec7c x\u00f3a cache v\u00e0 cookie kh\u00f4ng hi\u1ec7u qu\u1ea3, v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 kh\u00f4ng n\u1eb1m \u1edf tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n. C\u00e1c nguy\u00ean nh\u00e2n kh\u1ea3 d\u0129 kh\u00e1c bao g\u1ed3m: l\u1ed7i t\u1eeb plugin tr\u00ean trang web, sai c\u1ea5u h\u00ecnh t\u1eeb ph\u00eda m\u00e1y ch\u1ee7, ho\u1eb7c t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang c\u00f3 v\u1ea5n \u0111\u1ec1. L\u00fac n\u00e0y, li\u00ean h\u1ec7 v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean trang web l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1t nh\u1ea5t.<\/p>\n<p>Ph\u1ea7n l\u1edbn l\u1ed7i 401 ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng g\u1eb7p \u0111\u1ebfn t\u1eeb 2 ch\u1ed7: cache tr\u00ecnh duy\u1ec7t l\u01b0u session c\u0169, ho\u1eb7c plugin WordPress can thi\u1ec7p v\u00e0o qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c. X\u1eed l\u00fd 2 \u0111i\u1ec3m n\u00e0y tr\u01b0\u1edbc, 80% tr\u01b0\u1eddng h\u1ee3p t\u1ef1 resolve.<\/p>\n<p>N\u1ebfu b\u1ea1n g\u1eb7p l\u1ed7i 401 li\u00ean t\u1ee5c tr\u00ean server ri\u00eang (VPS\/Dedicated), v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng n\u1eb1m \u1edf c\u1ea5u h\u00ecnh .htaccess ho\u1eb7c reverse proxy \u2014 c\u1ea7n ki\u1ec3m tra access log \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c request n\u00e0o b\u1ecb t\u1eeb ch\u1ed1i v\u00e0 t\u1ea1i sao. N\u1ebfu c\u1ea7n h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt, \u0111\u1ed9i ng\u0169 InterData c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 ki\u1ec3m tra c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 qua hotline 1900 636 822.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00f3m t\u1eaft nhanh \u2014 L\u1ed7i 401 Unauthorized L\u1ed7i 401 l\u00e0 g\u00ec: M\u00e3 HTTP b\u00e1o hi\u1ec7u server t\u1eeb ch\u1ed1i request v\u00ec thi\u1ebfu ho\u1eb7c sai th\u00f4ng tin x\u00e1c th\u1ef1c Kh\u00e1c l\u1ed7i 403: 401 = ch\u01b0a x\u00e1c th\u1ef1c (c\u00f3 th\u1ec3 fix b\u1eb1ng \u0111\u0103ng nh\u1eadp \u0111\u00fang); 403 = b\u1ecb c\u1ea5m d\u00f9 \u0111\u00e3 x\u00e1c th\u1ef1c Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn: Sai<\/p>\n","protected":false},"author":11,"featured_media":40674,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-22385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hosting"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/22385","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\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=22385"}],"version-history":[{"count":5,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/22385\/revisions"}],"predecessor-version":[{"id":40676,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/22385\/revisions\/40676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/40674"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=22385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=22385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=22385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}