{"id":16750,"date":"2020-05-19T14:51:33","date_gmt":"2020-05-19T07:51:33","guid":{"rendered":"https:\/\/kiencang.net\/?p=16750"},"modified":"2020-05-19T14:51:33","modified_gmt":"2020-05-19T07:51:33","slug":"cac-tuy-chon-cua-plugin-perfmatters-p6","status":"publish","type":"post","link":"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/","title":{"rendered":"Gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a plugin Perfmatters (ph\u1ea7n 6)"},"content":{"rendered":"\n<p>B\u1ea1n c\u00f3 th\u1ec3 <a href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p5\/\" target=\"_blank\" rel=\"noreferrer noopener\">xem ph\u1ea7n 5 c\u1ee7a chu\u1ed7i b\u00e0i vi\u1ebft gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a Perfmatters<\/a> \u1edf link v\u1eeba d\u1eabn.<\/p>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/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\" role=\"button\"><label for=\"item-6577d6672b600\" ><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><\/label><input aria-label=\"Toggle\" aria-label=\"item-6577d6672b600\"  type=\"checkbox\" id=\"item-6577d6672b600\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/#1_Heartbeat_API\" title=\"1. Heartbeat API\">1. Heartbeat API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/#2_Tan_so_Heartbeat\" title=\"2. T\u1ea7n s\u1ed1 Heartbeat\">2. T\u1ea7n s\u1ed1 Heartbeat<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/#3_Revisions\" title=\"3. Revisions\">3. Revisions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/#4_REST_API\" title=\"4. REST API\">4. REST API<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/#5_Cac_lien_ket_REST_API\" title=\"5. C\u00e1c li\u00ean k\u1ebft REST API\">5. C\u00e1c li\u00ean k\u1ebft REST API<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Heartbeat_API\"><\/span>1. Heartbeat API<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>WordPress Heartbeat API s\u1eed d\u1ee5ng <strong>\/wp-admin\/admin-ajax.php<\/strong> \u0111\u1ec3 ch\u1ea1y c\u00e1c l\u1eddi g\u1ecdi AJAX t\u1eeb tr\u00ecnh duy\u1ec7t web. Trong khi \u0111\u00e2y l\u00e0 t\u00ednh n\u0103ng hay th\u00ec n\u00f3 \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y t\u0103ng s\u1eed d\u1ee5ng CPU v\u00e0 t\u1ea1o ra s\u1ed1 l\u01b0\u1ee3ng l\u1edbn l\u1eddi g\u1ecdi PHP. L\u1ea5y v\u00ed d\u1ee5, n\u1ebfu b\u1ea1n \u0111\u1ec3 trang dashboard m\u1edf, n\u00f3 s\u1ebd ti\u1ebfp t\u1ee5c g\u1eedi \u0111i c\u00e1c y\u00eau c\u1ea7u POST t\u1edbi file n\u00e0y \u1edf t\u1ea7n s\u1ed1 th\u00f4ng th\u01b0\u1eddng, t\u1ee9c l\u00e0 15 gi\u00e2y m\u1ed9t l\u1ea7n. V\u00ed d\u1ee5 b\u00ean d\u01b0\u1edbi cho th\u1ea5y \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra nh\u01b0 th\u1ebf n\u00e0o:<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/admin-ajax-php-requests-access-log-1024x741.png\" alt=\"C\u00e1c y\u00eau c\u1ea7u Admin-ajax trong logs\" class=\"wp-image-16754\"\/><figcaption>C\u00e1c y\u00eau c\u1ea7u Admin-ajax trong logs<\/figcaption><\/figure>\n\n\n<p>Ch\u00fang t\u00f4i c\u00f3 ba t\u00f9y ch\u1ecdn t\u00edch h\u1ee3p trong plugin \u0111\u1ec3 gi\u1ea3m thi\u1ec3u \u0111i\u1ec1u n\u00e0y:<\/p>\n\n\n<ol><li>\u0110\u1ec3 nh\u01b0 m\u1eb7c \u0111\u1ecbnh (Default)<\/li><li>V\u00f4 hi\u1ec7u h\u00f3a \u1edf t\u1ea5t c\u1ea3 m\u1ecdi n\u01a1i (Disable Everywhere)<\/li><li>Ch\u1ec9 cho ph\u00e9p khi b\u1ea1n bi\u00ean t\u1eadp b\u00e0i post\/page (Only Allow When Editing Posts\/Pages)<\/li><\/ol>\n\n\n<p>Ch\u00fang t\u00f4i khuy\u00ean d\u00f9ng c\u00e1i cu\u1ed1i c\u00f9ng v\u00e0 \u0111\u00f3 l\u00e0 c\u00e0i \u0111\u1eb7t ch\u00fang t\u00f4i s\u1eed d\u1ee5ng tr\u00ean c\u00e1c trang c\u1ee7a m\u00ecnh. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap b\u1ea1n gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ed1 l\u01b0\u1ee3ng c\u00e1c y\u00eau c\u1ea7u.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/disable-heartbeat-api-perfmatters-1024x355.png\" alt=\"V\u00f4 hi\u1ec7u h\u00f3a Heartbeat API b\u1eb1ng plugin Perfmatters\" class=\"wp-image-16752\"\/><figcaption>V\u00f4 hi\u1ec7u h\u00f3a Heartbeat API b\u1eb1ng plugin Perfmatters<\/figcaption><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i quy\u1ebft r\u1eafc r\u1ed1i<\/h3>\n\n\n<p>N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng plugin \u0111\u1ec3 x\u00e2y d\u1ef1ng trang (page builder) nh\u01b0 ki\u1ec3u <a href=\"https:\/\/wordpress.org\/plugins\/elementor\/\" target=\"_blank\" rel=\"noreferrer noopener\">Elementor<\/a>, b\u1ea1n s\u1ebd mu\u1ed1n s\u1eed d\u1ee5ng t\u00f9y ch\u1ecdn th\u1ee9 ba \u1edf tr\u00ean. V\u00f4 hi\u1ec7u h\u00f3a Heartbeat \u1edf t\u1ea5t c\u1ea3 m\u1ecdi n\u01a1i \u0111\u00f4i khi l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y v\u1ea5n \u0111\u1ec1 cho ch\u1ee9c n\u0103ng c\u1ee7a page builder.<\/p>\n\n\n<p>B\u1ea1n nh\u1edb \u0111\u1ecdc th\u00eam t\u00f9y ch\u1ecdn kh\u00e1c c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 vi\u1ec7c thay \u0111\u1ed5i t\u1ea7n s\u1ed1 c\u1ee7a Heartbeat API (\u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp ngay b\u00ean d\u01b0\u1edbi).<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Tan_so_Heartbeat\"><\/span>2. T\u1ea7n s\u1ed1 Heartbeat<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>Ch\u00fang t\u00f4i x\u00e2y d\u1ef1ng c\u00e1c t\u00f9y ch\u1ecdn \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u1ea7n s\u1ed1 c\u1ee7a l\u1eddi g\u1ecdi. B\u1ea1n hi\u1ec7n c\u00f3 c\u00e1c t\u00f9y ch\u1ecdn sau:<\/p>\n\n\n<ul><li>15 gi\u00e2y (m\u1eb7c \u0111\u1ecbnh)<\/li><li>30 gi\u00e2y<\/li><li>45 gi\u00e2y<\/li><li>60 gi\u00e2y<\/li><\/ul>\n\n\n<p>Ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n s\u1eed d\u1ee5ng t\u00f9y ch\u1ecdn 60-gi\u00e2y. \u0110\u00e2y l\u00e0 c\u00e1i m\u00e0 ch\u00fang t\u00f4i s\u1eed d\u1ee5ng tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c trang web c\u1ee7a m\u00ecnh.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/change-heartbeat-frequency-1024x279.png\" alt=\"Thay \u0111\u1ed5i t\u1ea7n s\u1ed1 Heartbeat b\u1eb1ng plugin perfmatters\" class=\"wp-image-16758\"\/><figcaption>Thay \u0111\u1ed5i t\u1ea7n s\u1ed1 Heartbeat b\u1eb1ng plugin perfmatters<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Revisions\"><\/span>3. Revisions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p><a href=\"https:\/\/kiencang.net\/revision-wordpress\/\" target=\"_blank\" rel=\"noreferrer noopener\">WordPress t\u1ef1 \u0111\u1ed9ng l\u01b0u c\u00e1c b\u1ea3n revision<\/a> khi b\u1ea1n th\u1ef1c hi\u1ec7n bi\u00ean t\u1eadp, ch\u1ec9nh s\u1eeda tr\u00ean c\u00e1c b\u00e0i post v\u00e0 page. Ch\u00fang c\u00f3 th\u1ec3 gia t\u0103ng s\u1ed1 l\u01b0\u1ee3ng kh\u00e1 nhanh. Theo m\u1eb7c \u0111\u1ecbnh, kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n n\u00e0o cho s\u1ed1 l\u01b0\u1ee3ng revision! Ch\u00fang t\u00f4i \u0111\u00e3 t\u1eebng ch\u1ee9ng ki\u1ebfn m\u1ed9t b\u00e0i post c\u00f3 h\u01a1n 1000 revision. Nh\u00e2n con s\u1ed1 \u0111\u00f3 v\u1edbi 50 trang, b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 \u0111\u1ebfn 50000 revison trong c\u01a1 s\u1edf d\u1eef li\u1ec7u (xem th\u00eam <a href=\"https:\/\/kiencang.net\/toi-uu-database-wordpress-toan-dien\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u00e1ch t\u1ed1i \u01b0u database WordPress<\/a>). V\u1ea5n \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ea1n h\u1ea7u nh\u01b0 kh\u00f4ng bao gi\u1edd s\u1eed d\u1ee5ng \u0111\u1ebfn ch\u00fang v\u00e0 ch\u00fang c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm database c\u1ee7a b\u1ea1n c\u0169ng nh\u01b0 chi\u1ebfm d\u1ee5ng kh\u00f4ng gian \u1ed5 \u0111\u0129a.<\/p>\n\n\n<p>V\u00ec th\u1ebf ch\u00fang t\u00f4i khuy\u1ebfn kh\u00edch b\u1ea1n v\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng revision. S\u1ebd hay h\u01a1n khi b\u1ea1n c\u00f3 nhi\u1ec1u l\u1ef1a ch\u1ecdn b\u1edfi t\u1ea5t c\u1ea3 ch\u00fang ta \u0111\u1ec1u c\u00f3 s\u01a1 su\u1ea5t d\u00f9 \u00edt d\u00f9 nhi\u1ec1u. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang t\u00f4i x\u00e2y d\u1ef1ng nhi\u1ec1u l\u1ef1a ch\u1ecdn \u0111\u1ec3 b\u1ea1n t\u00f9y c\u01a1 \u1ee9ng bi\u1ebfn:<\/p>\n\n\n<ul><li>M\u1eb7c \u0111\u1ecbnh (kh\u00f4ng gi\u1edbi h\u1ea1n)<\/li><li>V\u00f4 hi\u1ec7u h\u00f3a post revision<\/li><li>1<\/li><li>2<\/li><li>3<\/li><li>4<\/li><li>5<\/li><li>10<\/li><li>15<\/li><li>20<\/li><li>25<\/li><li>30<\/li><\/ul>\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch v\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c gi\u1edbi h\u1ea1n post revision<\/h3>\n\n\n<p>Click v\u00e0o ph\u1ea7n setting c\u1ee7a <a href=\"https:\/\/kiencang.net\/gioi-thieu-plugin-perfmatters\/\" target=\"_blank\" rel=\"noreferrer noopener\">plugin Perfmatters<\/a>. B\u00ean d\u01b0\u1edbi tab &#8220;Options&#8221; v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn m\u1eb7c \u0111\u1ecbnh, b\u1ea1n cu\u1ed9n chu\u1ed9t xu\u1ed1ng d\u01b0\u1edbi t\u1edbi t\u00f9y ch\u1ecdn &#8220;Limit Post Revisions&#8221;.<\/p>\n\n\n<p>L\u1ef1a ch\u1ecdn s\u1ed1 l\u01b0\u1ee3ng revision b\u1ea1n mu\u1ed1n l\u01b0u, ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 v\u00f4 hi\u1ec7u h\u00f3a ch\u00fang ngay v\u00e0 lu\u00f4n. C\u00e1 nh\u00e2n ch\u00fang t\u00f4i th\u00edch l\u1ef1a ch\u1ecdn t\u1ed1i thi\u1ec3u 3 revison, nh\u01b0ng kh\u00f4ng nhi\u1ec1u h\u01a1n \u0111\u1ec3 gi\u1eef c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c nh\u1ecf g\u1ecdn v\u00e0 linh ho\u1ea1t.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/disable-limit-wordpress-revisions-1024x389.png\" alt=\"V\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng revision trong WordPress\" class=\"wp-image-16761\"\/><figcaption>V\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng revision trong WordPress<\/figcaption><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">C\u1ea3nh b\u00e1o WP_POST_REVISIONS<\/h3>\n\n\n<p>N\u1ebfu b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c c\u1ea3nh b\u00e1o n\u00f3i r\u1eb1ng WP_POST_REVISIONS \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1eadt \u1edf \u0111\u00e2u \u0111\u00f3 tr\u00ean trang, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 kh\u1ea3 n\u0103ng cao l\u00e0 do m\u1ed9t trong c\u00e1c nguy\u00ean nh\u00e2n sau:<\/p>\n\n\n<ul><li>B\u1ea1n \u0111\u00e3 s\u1eed d\u1ee5ng t\u00ednh n\u0103ng n\u00e0y trong plugin kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 WP-Rocket. B\u1ea1n ch\u1ec9 c\u1ea7n b\u1eadt t\u00ednh n\u0103ng n\u00e0y trong m\u1ed9t plugin m\u00e0 th\u00f4i, c\u00e1i n\u00e0y c\u00f3 r\u1ed3i th\u00ec th\u00f4i c\u00e1i kia.<\/li><li>B\u1ea1n \u0111\u00e3 c\u00f3 \u0111o\u1ea1n m\u00e3 b\u00ean d\u01b0\u1edbi \u0111\u00e2y \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong file <em>wp-config.php<\/em>. N\u1ebfu v\u1eady, b\u1ea1n c\u1ea7n lo\u1ea1i b\u1ecf n\u00f3:<\/li><\/ul>\n\n\n<pre class=\"wp-block-code\"><code>define('WP_POST_REVISIONS', 3);<\/code><\/pre>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_REST_API\"><\/span>4. REST API<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>WordPress REST API cung c\u1ea5p API \u0111i\u1ec3m cu\u1ed1i cho c\u00e1c ki\u1ec3u d\u1eef li\u1ec7u WordPress \u0111\u1ec3 ng\u01b0\u1eddi l\u1eadp tr\u00ecnh t\u01b0\u01a1ng t\u00e1c v\u1edbi website t\u1eeb xa b\u1eb1ng c\u00e1ch g\u1eedi v\u00e0 nh\u1eadn c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng JSON.<\/p>\n\n\n<p>\u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch mapping c\u00e1c \u0111i\u1ec3m cu\u1ed1i kh\u00e1c nhau th\u00f4ng qua URI, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>https:&#47;&#47;editwp.com\/wp-json\/<\/code><\/pre>\n\n\n<p>D\u00f9 WordPress REST API kh\u00e1 th\u00fa v\u1ecb, v\u1ea5n \u0111\u1ec1 c\u1ee7a n\u00f3 l\u00e0 theo m\u1eb7c \u0111\u1ecbnh n\u00f3 s\u1ebd \u0111\u1ec3 l\u1ea1i username c\u1ee7a b\u1ea5t c\u1ee9 ai t\u1eebng xu\u1ea5t b\u1ea3n b\u00e0i vi\u1ebft tr\u00ean trang WordPress th\u00f4ng qua URL sau:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>https:&#47;&#47;editwp.com\/wp-json\/wp\/v2\/users<\/code><\/pre>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/wp-json-users-1024x306.png\" alt=\"Danh s\u00e1ch user c\u1ee7a WP-JSON\" class=\"wp-image-16763\"\/><figcaption>Danh s\u00e1ch user c\u1ee7a WP-JSON<\/figcaption><\/figure><\/div>\n\n\n<p>\u0110\u00e2y l\u00e0 th\u00f4ng tin m\u00e0 b\u1ea1n kh\u00f4ng mu\u1ed1n t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u bi\u1ebft. T\u1ea1i sao? B\u1edfi v\u00ec ai \u0111\u00f3 c\u00f3 th\u1ec3 d\u1ef1a v\u00e0o t\u1ea5t c\u1ea3 t\u00ean ng\u01b0\u1eddi d\u00f9ng hi\u1ec7n c\u00f3 \u0111\u1ec3 \u0111o\u00e1n m\u1eadt kh\u1ea9u qua ki\u1ec3u t\u1ea5n c\u00f4ng v\u00e9t c\u1ea1n (brute-force attack). D\u00f9 cho c\u00e1c t\u00e1c gi\u1ea3, ng\u01b0\u1eddi c\u1ed9ng t\u00e1c, v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean <a href=\"https:\/\/kiencang.net\/tai-sao-mat-khau-manh-van-bi-hacker-pha\/\">s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh<\/a> th\u00ec vi\u1ec7c c\u00f4ng khai danh s\u00e1ch username ch\u1eb3ng ph\u1ea3i l\u00e0 \u00fd t\u01b0\u1edfng hay.<\/p>\n\n\n<p>V\u00ec v\u1eady, ch\u00fang t\u00f4i hi\u1ec7n c\u00f3 t\u00f9y ch\u1ecdn trong plugin Perfmatters cho ph\u00e9p b\u1ea1n v\u00f4 hi\u1ec7u h\u00f3a WordPress REST API.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Ai\/C\u00e1i g\u00ec s\u1eed d\u1ee5ng REST API?<\/h3>\n\n\n<p>V\u00ec trong th\u1ef1c t\u1ebf c\u00f3 c\u00e1c plugin, d\u1ecbch v\u1ee5 v\u00e0 \u1ee9ng d\u1ee5ng s\u1eed d\u1ee5ng REST API n\u00ean b\u1ea1n c\u00f3 kh\u1ea3 n\u0103ng kh\u00f4ng mu\u1ed1n v\u00f4 hi\u1ec7u h\u00f3a ho\u00e0n to\u00e0n REST API. Do \u0111\u00f3 ch\u00fang t\u00f4i x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4 h\u00ecnh c\u1ea5p quy\u1ec1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t v\u00e0i v\u00ed d\u1ee5 s\u1eed d\u1ee5ng REST API:<\/p>\n\n\n<ul><li>B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a Yoast SEO v\u00e0 Ryte<\/li><li>M\u1ed9t s\u1ed1 widget c\u1ee5 th\u1ec3 c\u1ee7a WooCommerce<\/li><li>Tr\u00ecnh bi\u00ean t\u1eadp m\u1edbi <strong>Gutenberg s\u1eed d\u1ee5ng REST API<\/strong> \u0111\u1ec3 giao ti\u1ebfp khi b\u1ea1n t\u1ea1o trang v\u00e0 bi\u00ean t\u1eadp b\u00e0i vi\u1ebft. N\u1ebfu b\u1ea1n v\u00f4 hi\u1ec7u h\u00f3a n\u00f3 ho\u00e0n to\u00e0n, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o l\u1ed7i: &#8220;Updating failed \/ C\u1eadp nh\u1eadt kh\u00f4ng th\u00e0nh c\u00f4ng&#8221;.<\/li><\/ul>\n\n\n<p>V\u00ec th\u1ebf ch\u00fang t\u00f4i \u0111\u01b0a ra c\u00e1c quy\u1ec1n kh\u00e1c nhau \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng. L\u1ea5y v\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn t\u00f9y ch\u1ecdn &#8220;Disable for Non-Admins \/ V\u00f4 hi\u1ec7u h\u00f3a v\u1edbi nh\u1eefng ai kh\u00f4ng ph\u1ea3i l\u00e0 Admin&#8221; ho\u1eb7c &#8220;V\u00f4 hi\u1ec7u h\u00f3a n\u00f3 khi b\u1ea1n \u0111\u0103ng xu\u1ea5t&#8221;.<\/p>\n\n\n<h3 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 v\u00f4 hi\u1ec7u h\u00f3a WordPress REST API<\/h3>\n\n\n<p>\u0110\u1ec3 v\u00f4 hi\u1ec7u h\u00f3a REST API b\u1ea1n click v\u00e0o ph\u1ea7n setting c\u1ee7a Perfmatters, l\u1ef1a ch\u1ecdn t\u00f9y ch\u1ecdn &#8220;Disable REST API&#8221;.<\/p>\n\n\n<p>C\u00f3 ba t\u00f9y ch\u1ecdn kh\u00e1c nhau \u1edf \u0111\u00e2y. Theo m\u1eb7c \u0111\u1ecbnh, REST API s\u1ebd \u0111\u01b0\u1ee3c b\u1eadt. B\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn v\u00f4 hi\u1ec7u h\u00f3a n\u00f3 cho nh\u1eefng ai kh\u00f4ng ph\u1ea3i l\u00e0 admin (\u0111\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn ch\u00fang t\u00f4i khuy\u00ean d\u00f9ng), ho\u1eb7c v\u00f4 hi\u1ec7u h\u00f3a n\u00f3 khi b\u1ea1n \u0111\u0103ng xu\u1ea5t. <strong>N\u1ebfu b\u1ea1n l\u00e0m vi\u1ec7c v\u1edbi nhi\u1ec1u t\u00e1c gi\u1ea3 kh\u00e1c nhau, b\u1ea1n s\u1ebd mu\u1ed1n b\u1eadt t\u00ednh n\u0103ng n\u00e0y<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/disable-wordpress-rest-api-perfmatters-1-1024x576.png\" alt=\"V\u00f4 hi\u1ec7u h\u00f3a REST API WordPress b\u1eb1ng Perfmatters\" class=\"wp-image-16766\"\/><figcaption>V\u00f4 hi\u1ec7u h\u00f3a REST API WordPress b\u1eb1ng Perfmatters<\/figcaption><\/figure><\/div>\n\n\n<p>Khi b\u1ea1n v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c y\u00eau c\u1ea7u REST API nh\u01b0 tr\u00ean, n\u1ebfu c\u00f3 y\u00eau c\u1ea7u \u0111\u1ebfn n\u00f3 m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ea5p quy\u1ec1n n\u00f3 s\u1ebd hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o l\u1ed7i nh\u01b0 sau:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>{\"code\":\"rest_authentication_error\",\"message\":\"Sorry, you do not have permission to make REST API requests.\",\"data\":{\"status\":401}}<\/code><\/pre>\n\n\n<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c li\u00ean k\u1ebft REST API tr\u00ean trang WordPress, ph\u1ea7n ti\u1ebfp sau s\u1ebd n\u00f3i v\u1ec1 \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Cac_lien_ket_REST_API\"><\/span>5. C\u00e1c li\u00ean k\u1ebft REST API<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p>WordPress REST API cho ph\u00e9p CMS giao ti\u1ebfp v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng web kh\u00e1c, kh\u00f4ng th\u00e0nh v\u1ea5n \u0111\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh b\u1ea1n s\u1eed d\u1ee5ng l\u00e0 g\u00ec. Theo cu\u1ed1n s\u1ed5 tay d\u00e0nh cho WordPress th\u00ec:<\/p>\n\n\n<blockquote class=\"wp-block-quote\"><p>WordPress REST API cung c\u1ea5p API \u0111i\u1ec3m cu\u1ed1i cho c\u00e1c ki\u1ec3u d\u1eef li\u1ec7u WordPress \u0111\u1ec3 ng\u01b0\u1eddi l\u1eadp tr\u00ecnh t\u01b0\u01a1ng t\u00e1c v\u1edbi website t\u1eeb xa b\u1eb1ng c\u00e1ch g\u1eedi v\u00e0 nh\u1eadn c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng JSON.<\/p><cite><a rel=\"noreferrer noopener\" href=\"https:\/\/developer.wordpress.org\/rest-api\/\" target=\"_blank\">WordPress handbook<\/a><\/cite><\/blockquote>\n\n\n<p>Tuy nhi\u00ean r\u1ea5t nhi\u1ec1u trang kh\u00f4ng s\u1eed d\u1ee5ng n\u00f3, v\u00e0 v\u00ec th\u1ebf trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, n\u00f3 l\u00e0 \u0111o\u1ea1n m\u00e3 kh\u00f4ng c\u1ea7n thi\u1ebft. Theo m\u1eb7c \u0111\u1ecbnh, m\u1ecdi trang bao g\u1ed3m li\u00ean k\u1ebft sau trong header:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>&lt;link rel='https:\/\/api.w.org\/' href='https:\/\/domain.com\/wp-json\/' \/><\/code><\/pre>\n\n\n<p>Ngo\u00e0i ra c\u00f2n c\u00f3 m\u1ed9t header \u0111\u01b0\u1ee3c g\u1eedi tr\u00ean m\u1ed7i y\u00eau c\u1ea7u:<\/p>\n\n\n<pre class=\"wp-block-code\"><code>function rest_output_link_header() {\n if ( headers_sent() ) {\n return;\n }\n $api_root = get_rest_url();\n if ( empty( $api_root ) ) {\n return;\n }<\/code><\/pre>\n\n\n<p>Ti\u1ebfp \u0111\u00f3 c\u00f2n c\u00f3 m\u1ed9t th\u1ebb API \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111i\u1ec3m cu\u1ed1i Really Simple Discovery (RSD).<\/p>\n\n\n<pre class=\"wp-block-code\"><code>&lt;api name=\"WP-API\" blogID=\"1\" preferred=\"false\" apiLink=\"&lt;?php echo esc_url( $api_root ); ?>\" \/><\/code><\/pre>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng lo\u1ea1i b\u1ecf c\u00e1c li\u00ean k\u1ebft WordPress REST API b\u1eb1ng c\u00e1ch b\u1eadt t\u00f9y ch\u1ecdn &#8220;Remove REST API Links&#8221;.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/remove-wordpress-REST-API-links-1024x229.png\" alt=\"Lo\u1ea1i b\u1ecf c\u00e1c li\u00ean k\u1ebft WordPress REST API trong header\" class=\"wp-image-16768\"\/><figcaption>Lo\u1ea1i b\u1ecf c\u00e1c li\u00ean k\u1ebft WordPress REST API trong header<\/figcaption><\/figure>\n\n\n<p>\u0110o\u1ea1n tr\u00ean ch\u1ec9 lo\u1ea1i b\u1ecf m\u00e3 trong ph\u1ea7n front-end.<\/p>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 <a href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p7\/\" target=\"_blank\" rel=\"noreferrer noopener\">xem ti\u1ebfp ph\u1ea7n 7 \u1edf li\u00ean k\u1ebft n\u00e0y<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea1n c\u00f3 th\u1ec3 xem ph\u1ea7n 5 c\u1ee7a chu\u1ed7i b\u00e0i vi\u1ebft gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a Perfmatters \u1edf link v\u1eeba d\u1eabn. 1. Heartbeat API WordPress Heartbeat API s\u1eed d\u1ee5ng \/wp-admin\/admin-ajax.php \u0111\u1ec3 ch\u1ea1y c\u00e1c l\u1eddi g\u1ecdi AJAX t\u1eeb tr\u00ecnh duy\u1ec7t web. Trong khi \u0111\u00e2y l\u00e0 t\u00ednh n\u0103ng hay th\u00ec n\u00f3 \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[260,283],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a plugin Perfmatters (ph\u1ea7n 6) &#8226; Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a plugin Perfmatters (ph\u1ea7n 6) &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"B\u1ea1n c\u00f3 th\u1ec3 xem ph\u1ea7n 5 c\u1ee7a chu\u1ed7i b\u00e0i vi\u1ebft gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a Perfmatters \u1edf link v\u1eeba d\u1eabn. 1. Heartbeat API WordPress Heartbeat API s\u1eed d\u1ee5ng \/wp-admin\/admin-ajax.php \u0111\u1ec3 ch\u1ea1y c\u00e1c l\u1eddi g\u1ecdi AJAX t\u1eeb tr\u00ecnh duy\u1ec7t web. Trong khi \u0111\u00e2y l\u00e0 t\u00ednh n\u0103ng hay th\u00ec n\u00f3 \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/\" \/>\n<meta property=\"og:site_name\" content=\"Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/anhducnguyen87\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-05-19T07:51:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kiencang.net\/wp-content\/uploads\/2020\/05\/admin-ajax-php-requests-access-log-1024x741.png\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 ph\u00fat\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a plugin Perfmatters (ph\u1ea7n 6) &#8226; Ki\u1ebfn c\u00e0ng","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/kiencang.net\/cac-tuy-chon-cua-plugin-perfmatters-p6\/","og_locale":"vi_VN","og_type":"article","og_title":"Gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a plugin Perfmatters (ph\u1ea7n 6) &#8226; Ki\u1ebfn c\u00e0ng","og_description":"B\u1ea1n c\u00f3 th\u1ec3 xem ph\u1ea7n 5 c\u1ee7a chu\u1ed7i b\u00e0i vi\u1ebft gi\u1ea3i th\u00edch c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a Perfmatters \u1edf link v\u1eeba d\u1eabn. 1. 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