{"id":20392,"date":"2024-12-25T14:19:41","date_gmt":"2024-12-25T07:19:41","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=20392"},"modified":"2024-12-25T14:19:41","modified_gmt":"2024-12-25T07:19:41","slug":"free-ssl-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/","title":{"rendered":"Free SSL l\u00e0 g\u00ec? N\u00ean ch\u1ecdn Free SSL hay SSL tr\u1ea3 ph\u00ed cho website?"},"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\/free-ssl-la-gi\/#Free-SSL-la-gi\" >Free SSL 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\/free-ssl-la-gi\/#Phuong-thuc-de-su-dung-chung-chi-Free-SSL\" >Ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ec3 s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 Free SSL<\/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\/free-ssl-la-gi\/#1-Chon-nha-cung-cap-SSL-mien-phi\" >1. Ch\u1ecdn nh\u00e0 cung c\u1ea5p SSL mi\u1ec5n ph\u00ed<\/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\/free-ssl-la-gi\/#2-Dang-ky-va-xac-thuc-ten-mien\" >2. \u0110\u0103ng k\u00fd v\u00e0 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<\/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\/free-ssl-la-gi\/#3-Tao-va-cai-dat-chung-chi-SSL\" >3. T\u1ea1o v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL<\/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\/free-ssl-la-gi\/#4-Cau-hinh-may-chu-web\" >4. C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web<\/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\/free-ssl-la-gi\/#5-Kiem-tra-va-duy-tri-chung-chi-SSL\" >5. Ki\u1ec3m tra v\u00e0 duy tr\u00ec ch\u1ee9ng ch\u1ec9 SSL<\/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\/free-ssl-la-gi\/#Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi\" >\u0110\u1eb7c \u0111i\u1ec3m li\u00ean k\u1ebft, t\u1eadp trung v\u00e0 t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed<\/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\/free-ssl-la-gi\/#Lien-ket-voi-dich-vu-hosting-va-nha-cung-cap\" >Li\u00ean k\u1ebft v\u1edbi d\u1ecbch v\u1ee5 hosting v\u00e0 nh\u00e0 cung c\u1ea5p<\/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\/free-ssl-la-gi\/#Su-tap-trung-va-ho-tro-tu-cong-dong\" >S\u1ef1 t\u1eadp trung v\u00e0 h\u1ed7 tr\u1ee3 t\u1eeb c\u1ed9ng \u0111\u1ed3ng<\/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\/free-ssl-la-gi\/#Tuong-thich-voi-trinh-duyet-va-he-thong-may-chu\" >T\u01b0\u01a1ng th\u00edch v\u1edbi tr\u00ecnh duy\u1ec7t v\u00e0 h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7<\/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\/free-ssl-la-gi\/#Free-SSL-co-thuc-su-an-toan-khong\" >Free SSL c\u00f3 th\u1ef1c s\u1ef1 an to\u00e0n kh\u00f4ng?<\/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\/free-ssl-la-gi\/#Co-nen-su-dung-Free-SSL\" >C\u00f3 n\u00ean s\u1eed d\u1ee5ng Free SSL?<\/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\/free-ssl-la-gi\/#Loi-ich-cua-SSL-mien-phi\" >L\u1ee3i \u00edch c\u1ee7a SSL mi\u1ec5n ph\u00ed<\/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\/free-ssl-la-gi\/#Han-che-cua-SSL-mien-phi\" >H\u1ea1n ch\u1ebf c\u1ee7a SSL mi\u1ec5n ph\u00ed<\/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\/free-ssl-la-gi\/#So-sanh-Free-SSL-va-SSL-tra-phi\" >So s\u00e1nh Free SSL v\u00e0 SSL tr\u1ea3 ph\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL\" >H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t Free SSL b\u1eb1ng ZeroSSL<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#Tai-sao-nen-chon-ZeroSSL\" >T\u1ea1i sao n\u00ean ch\u1ecdn ZeroSSL?<\/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\/free-ssl-la-gi\/#Buoc-1-Dang-ky-tai-khoan-tren-ZeroSSLcom\" >B\u01b0\u1edbc 1: \u0110\u0103ng k\u00fd t\u00e0i kho\u1ea3n tr\u00ean ZeroSSL.com<\/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\/free-ssl-la-gi\/#Buoc-2-Tao-CSR-va-chon-thoi-han-SSL\" >B\u01b0\u1edbc 2: T\u1ea1o CSR v\u00e0 ch\u1ecdn th\u1eddi h\u1ea1n SSL<\/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\/free-ssl-la-gi\/#Buoc-3-Xac-thuc-ten-mien\" >B\u01b0\u1edbc 3: X\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<\/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\/free-ssl-la-gi\/#Buoc-4-Tai-chung-chi-SSL\" >B\u01b0\u1edbc 4: T\u1ea3i ch\u1ee9ng ch\u1ec9 SSL<\/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\/free-ssl-la-gi\/#Buoc-5-Upload-chung-chi-len-may-chu\" >B\u01b0\u1edbc 5: Upload ch\u1ee9ng ch\u1ec9 l\u00ean m\u00e1y ch\u1ee7<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#Top-5-nha-cung-cap-Free-SSL-uy-tin\" >Top 5 nh\u00e0 cung c\u1ea5p Free SSL uy t\u00edn<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#1-SSLforFree\" >1. SSLforFree<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#2-Lets-Encrypt\" >2. Let&#8217;s Encrypt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#3-Comodo\" >3. Comodo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/interdata.vn\/blog\/free-ssl-la-gi\/#4-Cloudflare\" >4. Cloudflare<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>Ng\u00e0y nay, b\u1ea3o m\u1eadt <a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">website<\/a> l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu, \u0111\u1eb7c bi\u1ec7t khi ng\u01b0\u1eddi d\u00f9ng ng\u00e0y c\u00e0ng quan t\u00e2m \u0111\u1ebfn s\u1ef1 an to\u00e0n d\u1eef li\u1ec7u. V\u1eady <strong>Free SSL l\u00e0 g\u00ec?<\/strong> V\u1edbi chi ph\u00ed b\u1eb1ng 0 v\u00e0 d\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t, Free SSL tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c website c\u00e1 nh\u00e2n v\u00e0 doanh nghi\u1ec7p nh\u1ecf. B\u00e0i vi\u1ebft n\u00e0y InterData s\u1ebd gi\u00fap b\u1ea1n kh\u00e1m ph\u00e1 Free SSL t\u1eeb c\u00e1ch th\u1ee9c s\u1eed d\u1ee5ng, nh\u1eefng \u01b0u \u0111i\u1ec3m, nh\u01b0\u1ee3c \u0111i\u1ec3m \u0111\u1ebfn h\u01b0\u1edbng d\u1eabn c\u00e1ch s\u1eed d\u1ee5ng Free SSL. Kh\u00e1m ph\u00e1 ngay nh\u00e9!<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Free-SSL-la-gi\"><\/span>Free SSL l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Free SSL (Secure Sockets Layer) l\u00e0 <strong>ch\u1ee9ng ch\u1ec9 b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c cung c\u1ea5p mi\u1ec5n ph\u00ed<\/strong>, gi\u00fap <a href=\"https:\/\/interdata.vn\/blog\/ma-hoa-du-lieu-data-encryption\/\">m\u00e3 h\u00f3a d\u1eef li\u1ec7u<\/a> trao \u0111\u1ed5i gi\u1eefa tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/web-server\/\">m\u00e1y ch\u1ee7 web<\/a>. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n hacker can thi\u1ec7p ho\u1eb7c \u0111\u00e1nh c\u1eafp th\u00f4ng tin trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i, \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u c\u00e1 nh\u00e2n v\u00e0 giao d\u1ecbch tr\u00ean web \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 t\u1ed1t h\u01a1n\u200b.<\/p>\n<figure id=\"attachment_20400\" aria-describedby=\"caption-attachment-20400\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Free-SSL-la-gi.png\" alt=\"Free SSL l\u00e0 g\u00ec?\" width=\"800\" height=\"500\" class=\"size-full wp-image-20400\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Free-SSL-la-gi.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Free-SSL-la-gi-300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Free-SSL-la-gi-768x480.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Free-SSL-la-gi-750x469.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20400\" class=\"wp-caption-text\">Free SSL l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Phuong-thuc-de-su-dung-chung-chi-Free-SSL\"><\/span>Ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ec3 s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 Free SSL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c c\u00e0i \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng <a href=\"https:\/\/interdata.vn\/blog\/chung-chi-ssl\/\">ch\u1ee9ng ch\u1ec9 SSL<\/a> mi\u1ec5n ph\u00ed gi\u00fap <a href=\"https:\/\/interdata.vn\/blog\/cach-bao-mat-website\/\">b\u1ea3o m\u1eadt website<\/a> v\u00e0 c\u1ea3i thi\u1ec7n th\u1ee9 h\u1ea1ng <a href=\"https:\/\/interdata.vn\/blog\/seo-la-gi\/\">SEO<\/a>. C\u00e1c nh\u00e0 cung c\u1ea5p ph\u1ed5 bi\u1ebfn nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/lets-encrypt-la-gi\/\">Let\u2019s Encrypt<\/a> ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/cloudflare-la-gi\/\">Cloudflare<\/a> \u0111\u00e3 l\u00e0m cho qu\u00e1 tr\u00ecnh n\u00e0y tr\u1edf n\u00ean d\u1ec5 ti\u1ebfp c\u1eadn v\u00e0 thu\u1eadn ti\u1ec7n th\u00f4ng qua c\u00e1c b\u01b0\u1edbc t\u1ef1 \u0111\u1ed9ng h\u00f3a. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ec3 s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 Free SSL:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Chon-nha-cung-cap-SSL-mien-phi\"><\/span>1. Ch\u1ecdn nh\u00e0 cung c\u1ea5p SSL mi\u1ec5n ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ea7u ti\u00ean, b\u1ea1n c\u1ea7n l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a m\u00ecnh. Let\u2019s Encrypt l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn nh\u1edd t\u00ednh mi\u1ec5n ph\u00ed v\u00e0 quy tr\u00ecnh c\u1ea5p ph\u00e1t t\u1ef1 \u0111\u1ed9ng, trong khi Cloudflare <strong>kh\u00f4ng ch\u1ec9 cung c\u1ea5p SSL m\u00e0 c\u00f2n t\u00edch h\u1ee3p CDN<\/strong> \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 trang web\u200b.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Dang-ky-va-xac-thuc-ten-mien\"><\/span>2. \u0110\u0103ng k\u00fd v\u00e0 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 nh\u1eadn ch\u1ee9ng ch\u1ec9 SSL, b\u1ea1n c\u1ea7n x\u00e1c nh\u1eadn quy\u1ec1n s\u1edf h\u1eefu <a href=\"https:\/\/interdata.vn\/blog\/domain-la-gi\/\">t\u00ean mi\u1ec1n<\/a> theo y\u00eau c\u1ea7u c\u1ee7a nh\u00e0 cung c\u1ea5p. C\u00f3 hai ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c ph\u1ed5 bi\u1ebfn:<\/p>\n<ul>\n<li><strong>X\u00e1c th\u1ef1c qua <a href=\"https:\/\/interdata.vn\/blog\/dns-la-gi\/\">DNS<\/a><\/strong>: Th\u00eam m\u1ed9t m\u00e3 x\u00e1c minh v\u00e0o b\u1ea3n ghi DNS c\u1ee7a t\u00ean mi\u1ec1n.<\/li>\n<li><strong>X\u00e1c th\u1ef1c qua HTTP<\/strong>: T\u1ea3i m\u1ed9t t\u1ec7p tin \u0111\u1eb7c bi\u1ec7t l\u00ean th\u01b0 m\u1ee5c g\u1ed1c c\u1ee7a trang web.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3-Tao-va-cai-dat-chung-chi-SSL\"><\/span>3. T\u1ea1o v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sau khi b\u1ea1n \u0111\u00e3 ho\u00e0n t\u1ea5t x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 t\u1ea1o v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL. Quy tr\u00ecnh n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng h\u00f3a b\u1edfi c\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 Let\u2019s Encrypt ho\u1eb7c Cloudflare. C\u00e1c b\u01b0\u1edbc c\u01a1 b\u1ea3n bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>T\u1ea1o ch\u1ee9ng ch\u1ec9 SSL<\/strong>: S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ho\u1eb7c giao di\u1ec7n t\u1eeb nh\u00e0 cung c\u1ea5p \u0111\u1ec3 kh\u1edfi t\u1ea1o ch\u1ee9ng ch\u1ec9.<\/li>\n<li><strong>T\u1ea3i ch\u1ee9ng ch\u1ec9<\/strong>: Sau khi kh\u1edfi t\u1ea1o, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c t\u1ec7p tin nh\u01b0 ch\u1ee9ng ch\u1ec9 ch\u00ednh (CRT) v\u00e0 kh\u00f3a ri\u00eang (Private Key).<\/li>\n<\/ul>\n<p>Nh\u1edd qu\u00e1 tr\u00ecnh t\u1ef1 \u0111\u1ed9ng h\u00f3a n\u00e0y, h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n chi ti\u1ebft qua giao di\u1ec7n qu\u1ea3n tr\u1ecb ho\u1eb7c th\u1eadm ch\u00ed t\u1ef1 \u0111\u1ed9ng c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 tr\u00ean h\u1ec7 th\u1ed1ng hosting c\u1ee7a b\u1ea1n\u200b.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Cau-hinh-may-chu-web\"><\/span>4. C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sau khi c\u00f3 ch\u1ee9ng ch\u1ec9 SSL, b\u1ea1n c\u1ea7n c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web (nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/apache-la-gi\/\">Apache<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/nginx-la-gi\/\">Nginx<\/a>) \u0111\u1ec3 s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 cho c\u00e1c k\u1ebft n\u1ed1i <a href=\"https:\/\/interdata.vn\/blog\/giao-thuc-https-la-gi\/\">HTTPS<\/a>. C\u00e1c b\u01b0\u1edbc c\u1ea5u h\u00ecnh bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>C\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9<\/strong>: Th\u00eam t\u1ec7p ch\u1ee9ng ch\u1ec9 v\u00e0 kh\u00f3a ri\u00eang v\u00e0o th\u01b0 m\u1ee5c th\u00edch h\u1ee3p tr\u00ean m\u00e1y ch\u1ee7.<\/li>\n<li><strong>C\u1ea5u h\u00ecnh HTTPS<\/strong>: Ch\u1ec9nh s\u1eeda t\u1eadp tin c\u1ea5u h\u00ecnh (nh\u01b0 apache2.conf ho\u1eb7c nginx.conf) \u0111\u1ec3 k\u00edch ho\u1ea1t SSL cho t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y ch\u1ee7<\/strong>: Sau khi ho\u00e0n t\u1ea5t, kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5 \u0111\u1ec3 k\u00edch ho\u1ea1t thay \u0111\u1ed5i.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"5-Kiem-tra-va-duy-tri-chung-chi-SSL\"><\/span>5. Ki\u1ec3m tra v\u00e0 duy tr\u00ec ch\u1ee9ng ch\u1ec9 SSL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c ki\u1ec3m tra gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t \u0111\u00fang c\u00e1ch v\u00e0 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn nh\u01b0 SSL Labs \u0111\u1ec3 ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1ee7a ch\u1ee9ng ch\u1ec9.<\/p>\n<p>Ngo\u00e0i ra, h\u00e3y:<\/p>\n<ul>\n<li><strong>Theo d\u00f5i ng\u00e0y h\u1ebft h\u1ea1n<\/strong>: \u0110\u1ea3m b\u1ea3o ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n ho\u1eb7c gia h\u1ea1n th\u1ee7 c\u00f4ng k\u1ecbp th\u1eddi.<\/li>\n<li><strong>Duy tr\u00ec b\u1ea3o m\u1eadt li\u00ean t\u1ee5c<\/strong>: Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 v\u00e0 c\u1eadp nh\u1eadt m\u00e1y ch\u1ee7 web \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng trang web lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n b\u1ea3o m\u1eadt m\u1edbi nh\u1ea5t\u200b.<\/li>\n<\/ul>\n<p>B\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc n\u00e0y, b\u1ea1n kh\u00f4ng ch\u1ec9 b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng m\u00e0 c\u00f2n c\u1ea3i thi\u1ec7n th\u1ee9 h\u1ea1ng SEO c\u1ee7a trang web nh\u1edd v\u00e0o k\u1ebft n\u1ed1i HTTPS an to\u00e0n. V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 Let\u2019s Encrypt, vi\u1ec7c b\u1ea3o v\u1ec7 website ch\u01b0a bao gi\u1edd d\u1ec5 d\u00e0ng v\u00e0 ti\u1ebft ki\u1ec7m \u0111\u1ebfn th\u1ebf.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi\"><\/span>\u0110\u1eb7c \u0111i\u1ec3m li\u00ean k\u1ebft, t\u1eadp trung v\u00e0 t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Lien-ket-voi-dich-vu-hosting-va-nha-cung-cap\"><\/span>Li\u00ean k\u1ebft v\u1edbi d\u1ecbch v\u1ee5 hosting v\u00e0 nh\u00e0 cung c\u1ea5p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed, \u0111i\u1ec3n h\u00ecnh nh\u01b0 Let\u2019s Encrypt, \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n trong nhi\u1ec1u d\u1ecbch v\u1ee5 hosting v\u00e0 m\u00e1y ch\u1ee7 ph\u1ed5 bi\u1ebfn. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t v\u00e0 k\u00edch ho\u1ea1t SSL ch\u1ec9 v\u1edbi v\u00e0i thao t\u00e1c trong giao di\u1ec7n qu\u1ea3n tr\u1ecb hosting ho\u1eb7c qua c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/cpanel\/\">cPanel<\/a> v\u00e0 Plesk\u200b.<\/p>\n<p>T\u00ednh n\u0103ng t\u00edch h\u1ee3p s\u1eb5n gi\u00fap gi\u1ea3m b\u1edbt c\u00f4ng s\u1ee9c v\u00e0 th\u1eddi gian c\u00e0i \u0111\u1eb7t, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho nh\u1eefng ai kh\u00f4ng c\u00f3 nhi\u1ec1u kinh nghi\u1ec7m k\u1ef9 thu\u1eadt.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-tap-trung-va-ho-tro-tu-cong-dong\"><\/span>S\u1ef1 t\u1eadp trung v\u00e0 h\u1ed7 tr\u1ee3 t\u1eeb c\u1ed9ng \u0111\u1ed3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Do Let\u2019s Encrypt v\u00e0 c\u00e1c nh\u00e0 cung c\u1ea5p SSL mi\u1ec5n ph\u00ed kh\u00e1c \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn trong c\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n web, h\u1ecd nh\u1eadn \u0111\u01b0\u1ee3c nhi\u1ec1u s\u1ef1 h\u1ed7 tr\u1ee3 v\u00e0 \u0111\u00f3ng g\u00f3p t\u1eeb c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/lap-trinh-la-gi\/\">l\u1eadp tr\u00ecnh<\/a> vi\u00ean v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c li\u00ean t\u1ee5c c\u1eadp nh\u1eadt, c\u1ea3i ti\u1ebfn quy tr\u00ecnh c\u1ea5p ch\u1ee9ng ch\u1ec9 v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3.<\/p>\n<p>Ngo\u00e0i ra, vi\u1ec7c d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p c\u00e1c ch\u1ee9ng ch\u1ec9 n\u00e0y gi\u00fap c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 Let\u2019s Encrypt tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho nh\u1eefng d\u1ef1 \u00e1n web m\u1edbi ho\u1eb7c nh\u1eefng ai mu\u1ed1n nhanh ch\u00f3ng b\u1ea3o m\u1eadt website m\u00e0 kh\u00f4ng t\u1ed1n chi ph\u00ed\u200b.<\/p>\n<figure id=\"attachment_20401\" aria-describedby=\"caption-attachment-20401\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi.jpg\" alt=\"\u0110\u1eb7c \u0111i\u1ec3m li\u00ean k\u1ebft, t\u1eadp trung v\u00e0 t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed\" width=\"800\" height=\"500\" class=\"size-full wp-image-20401\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dac-diem-lien-ket-tap-trung-va-tuong-thich-cua-chung-chi-SSL-mien-phi-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20401\" class=\"wp-caption-text\">\u0110\u1eb7c \u0111i\u1ec3m li\u00ean k\u1ebft, t\u1eadp trung v\u00e0 t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tuong-thich-voi-trinh-duyet-va-he-thong-may-chu\"><\/span>T\u01b0\u01a1ng th\u00edch v\u1edbi tr\u00ecnh duy\u1ec7t v\u00e0 h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a m\u1edf, nh\u01b0 TLS (<a href=\"https:\/\/interdata.vn\/blog\/transport-layer-lop-van-chuyen-trong-ois-la-gi\/\">Transport Layer<\/a> Security), \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1edbi h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t hi\u1ec7n \u0111\u1ea1i nh\u01b0 Chrome, Firefox, Safari, v\u00e0 c\u00e1c n\u1ec1n t\u1ea3ng m\u00e1y ch\u1ee7 nh\u01b0 Apache v\u00e0 Nginx\u200b.<\/p>\n<p>T\u00ednh t\u01b0\u01a1ng th\u00edch n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp an to\u00e0n m\u00e0 kh\u00f4ng g\u1eb7p c\u1ea3nh b\u00e1o t\u1eeb tr\u00ecnh duy\u1ec7t v\u1ec1 ch\u1ee9ng ch\u1ec9 kh\u00f4ng h\u1ee3p l\u1ec7.<\/p>\n<p>D\u00f9 SSL mi\u1ec5n ph\u00ed \u0111\u00e1p \u1ee9ng h\u1ea7u h\u1ebft nhu c\u1ea7u b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n, m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c doanh nghi\u1ec7p th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed ho\u1eb7c d\u1ecbch v\u1ee5 t\u00e0i ch\u00ednh, c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00e1c ch\u1ee9ng ch\u1ec9 cao c\u1ea5p h\u01a1n, nh\u01b0 ch\u1ee9ng ch\u1ec9 OV (Organization Validation) ho\u1eb7c EV (Extended Validation).<\/p>\n<p>C\u00e1c nhu c\u1ea7u tr\u00ean nh\u1eb1m t\u0103ng th\u00eam m\u1ee9c \u0111\u1ed9 tin c\u1eady v\u00e0 b\u1ea3o hi\u1ec3m r\u1ee7i ro., khi \u0111\u00f3 c\u00e1c ch\u1ee9ng ch\u1ec9 SSL tr\u1ea3 ph\u00ed s\u1ebd l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u\u200b.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Free-SSL-co-thuc-su-an-toan-khong\"><\/span>Free SSL c\u00f3 th\u1ef1c s\u1ef1 an to\u00e0n kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed, nh\u01b0 Let\u2019s Encrypt, c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 n\u1ebfu \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t, duy tr\u00ec \u0111\u00fang c\u00e1ch v\u00e0 \u0111i k\u00e8m v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt b\u1ed5 sung. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng kh\u1eb3ng \u0111\u1ecbnh t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a SSL mi\u1ec5n ph\u00ed:<\/p>\n<p><strong>M\u1ee9c \u0111\u1ed9 m\u00e3 h\u00f3a cao<\/strong>: C\u00e1c ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed s\u1eed d\u1ee5ng m\u00e3 h\u00f3a TLS ti\u00ean ti\u1ebfn, gi\u00fap b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u truy\u1ec1n t\u1ea3i gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7. Th\u00f4ng qua m\u00e3 h\u00f3a n\u00e0y, d\u1eef li\u1ec7u s\u1ebd kh\u00f4ng th\u1ec3 b\u1ecb nghe tr\u1ed9m hay thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i, ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng d\u1ea1ng man-in-the-middle (MITM).<\/p>\n<p><strong>Quy tr\u00ecnh x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n an to\u00e0n<\/strong>: Free SSL y\u00eau c\u1ea7u x\u00e1c th\u1ef1c quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n \u0111\u1ec3 c\u1ea5p ch\u1ee9ng ch\u1ec9. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 ch\u1ee7 s\u1edf h\u1eefu h\u1ee3p ph\u00e1p m\u1edbi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t SSL cho trang web.<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c th\u1ef1c th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n<ul>\n<li>Th\u00eam b\u1ea3n ghi DNS ch\u1ee9a m\u00e3 x\u00e1c minh.<\/li>\n<li>\u0110\u1eb7t t\u1ec7p tin x\u00e1c th\u1ef1c v\u00e0o th\u01b0 m\u1ee5c g\u1ed1c c\u1ee7a website.<\/li>\n<\/ul>\n<p>Nh\u1edd v\u1eady, SSL mi\u1ec5n ph\u00ed kh\u00f4ng ch\u1ec9 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u m\u00e0 c\u00f2n gi\u00fap ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o, t\u0103ng \u0111\u1ed9 tin c\u1eady cho ng\u01b0\u1eddi d\u00f9ng khi truy c\u1eadp trang web.<\/p>\n<p><strong>Duy tr\u00ec t\u1ef1 \u0111\u1ed9ng v\u00e0 gia h\u1ea1n k\u1ecbp th\u1eddi<\/strong>: M\u1ed9t l\u1ee3i th\u1ebf l\u1edbn c\u1ee7a Let\u2019s Encrypt v\u00e0 c\u00e1c nh\u00e0 cung c\u1ea5p t\u01b0\u01a1ng t\u1ef1 l\u00e0 h\u1ed7 tr\u1ee3 gia h\u1ea1n t\u1ef1 \u0111\u1ed9ng. Ch\u1ee9ng ch\u1ec9 th\u01b0\u1eddng c\u00f3 th\u1eddi h\u1ea1n ng\u1eafn (90 ng\u00e0y), nh\u01b0ng nh\u1edd c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a nh\u01b0 Certbot, h\u1ec7 th\u1ed1ng s\u1ebd t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n tr\u01b0\u1edbc khi ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o trang web lu\u00f4n trong tr\u1ea1ng th\u00e1i an to\u00e0n v\u00e0 kh\u00f4ng xu\u1ea5t hi\u1ec7n l\u1ed7i b\u1ea3o m\u1eadt tr\u00ean tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<p>D\u00f9 SSL mi\u1ec5n ph\u00ed \u0111\u1ee7 an to\u00e0n cho nhi\u1ec1u \u1ee9ng d\u1ee5ng, ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb web c\u1ea7n tu\u00e2n th\u1ee7 th\u00eam c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt sau \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 nh\u01b0: c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh ch\u00ednh x\u00e1c ch\u1ee9ng ch\u1ec9 tr\u00ean m\u00e1y ch\u1ee7 web (Apache, Nginx), c\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh\/\">h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/a> \u0111\u1ec3 tr\u00e1nh l\u1ed7 h\u1ed5ng.<\/p>\n<p>Ngo\u00e0i hai c\u00e1c bi\u1ec7n ph\u00e1p tr\u00ean, ta c\u1ea7n ph\u1ea3i qu\u1ea3n l\u00fd m\u1eadt kh\u1ea9u m\u1ea1nh v\u00e0 theo d\u00f5i c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng ng\u1edd tr\u00ean website \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Co-nen-su-dung-Free-SSL\"><\/span>C\u00f3 n\u00ean s\u1eed d\u1ee5ng Free SSL?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh ph\u00f9 h\u1ee3p v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng SSL mi\u1ec5n ph\u00ed, b\u1ea1n c\u1ea7n c\u00e2n nh\u1eafc c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt, nhu c\u1ea7u c\u1ee5 th\u1ec3, v\u00e0 ng\u00e2n s\u00e1ch c\u1ee7a m\u00ecnh. M\u1ed7i lo\u1ea1i ch\u1ee9ng ch\u1ec9 \u0111\u1ec1u c\u00f3 nh\u1eefng l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf ri\u00eang, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh b\u1ea3o m\u1eadt v\u00e0 s\u1ef1 ph\u00f9 h\u1ee3p cho t\u1eebng lo\u1ea1i website.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loi-ich-cua-SSL-mien-phi\"><\/span>L\u1ee3i \u00edch c\u1ee7a SSL mi\u1ec5n ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4>Mi\u1ec5n ph\u00ed ho\u00e0n to\u00e0n<\/h4>\n<p>SSL mi\u1ec5n ph\u00ed nh\u01b0 Let\u2019s Encrypt gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed, \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho doanh nghi\u1ec7p nh\u1ecf ho\u1eb7c c\u00e1 nh\u00e2n mu\u1ed1n b\u1ea3o v\u1ec7 website m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ea7u t\u01b0 nhi\u1ec1u v\u00e0o b\u1ea3o m\u1eadt. \u0110i\u1ec1u n\u00e0y <strong>gi\u1ea3m thi\u1ec3u g\u00e1nh n\u1eb7ng t\u00e0i ch\u00ednh<\/strong> v\u00e0 h\u1ed7 tr\u1ee3 nh\u1eefng ng\u01b0\u1eddi m\u1edbi x\u00e2y d\u1ef1ng trang web.<\/p>\n<figure id=\"attachment_20402\" aria-describedby=\"caption-attachment-20402\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Loi-ich-cua-SSL-mien-phi.jpg\" alt=\"L\u1ee3i \u00edch c\u1ee7a SSL mi\u1ec5n ph\u00ed\" width=\"800\" height=\"500\" class=\"size-full wp-image-20402\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Loi-ich-cua-SSL-mien-phi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Loi-ich-cua-SSL-mien-phi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Loi-ich-cua-SSL-mien-phi-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Loi-ich-cua-SSL-mien-phi-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20402\" class=\"wp-caption-text\">L\u1ee3i \u00edch c\u1ee7a SSL mi\u1ec5n ph\u00ed<\/figcaption><\/figure>\n<h4>\u00a0B\u1ea3o m\u1eadt c\u01a1 b\u1ea3n \u0111\u1ea7y \u0111\u1ee7<\/h4>\n<p>D\u00f9 mi\u1ec5n ph\u00ed, SSL <strong>cung c\u1ea5p m\u00e3 h\u00f3a ti\u00ean ti\u1ebfn theo chu\u1ea9n TLS<\/strong>, b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng nh\u01b0 nghe l\u00e9n v\u00e0 gi\u1ea3 m\u1ea1o (MITM). Ngo\u00e0i ra, quy tr\u00ecnh x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n \u0111\u1ea3m b\u1ea3o ch\u1ee9ng ch\u1ec9 ch\u1ec9 \u0111\u01b0\u1ee3c c\u1ea5p cho ch\u1ee7 s\u1edf h\u1eefu h\u1ee3p ph\u00e1p c\u1ee7a t\u00ean mi\u1ec1n, gi\u00fap t\u0103ng \u0111\u1ed9 tin c\u1eady cho website\u200b.<\/p>\n<h4>D\u1ec5 tri\u1ec3n khai v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/h4>\n<p>C\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 Let\u2019s Encrypt ho\u1eb7c SSLforFree <strong>t\u00edch h\u1ee3p c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/strong>, gi\u00fap qu\u00e1 tr\u00ecnh t\u1ea1o v\u00e0 gia h\u1ea1n ch\u1ee9ng ch\u1ec9 tr\u1edf n\u00ean nhanh ch\u00f3ng. Nh\u1edd \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n nhi\u1ec1u ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt v\u1eabn c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t SSL d\u1ec5 d\u00e0ng qua giao di\u1ec7n qu\u1ea3n tr\u1ecb c\u1ee7a hosting\u200b.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Han-che-cua-SSL-mien-phi\"><\/span>H\u1ea1n ch\u1ebf c\u1ee7a SSL mi\u1ec5n ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4>H\u1ea1n ch\u1ebf v\u1ec1 t\u00ednh n\u0103ng<\/h4>\n<p>SSL mi\u1ec5n ph\u00ed, nh\u01b0 Let\u2019s Encrypt, ch\u1ec9 h\u1ed7 tr\u1ee3 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n (DV) m\u00e0 kh\u00f4ng cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/ev-ssl\/\">EV SSL<\/a> (Extended Validation) ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/ov-ssl-la-gi\/\">OV SSL<\/a> (Organization Validation).<\/p>\n<p>Ngo\u00e0i ra, c\u00e1c d\u1ecbch v\u1ee5 mi\u1ec5n ph\u00ed th\u01b0\u1eddng kh\u00f4ng c\u00f3 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7 t\u1eeb \u0111\u1ed9i ng\u0169 chuy\u00ean gia, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 kh\u0103n n\u1ebfu x\u1ea3y ra s\u1ef1 c\u1ed1 trong qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t ho\u1eb7c v\u1eadn h\u00e0nh\u200b.<\/p>\n<figure id=\"attachment_20403\" aria-describedby=\"caption-attachment-20403\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Han-che-cua-SSL-mien-phi.jpg\" alt=\"H\u1ea1n ch\u1ebf c\u1ee7a SSL mi\u1ec5n ph\u00ed\" width=\"800\" height=\"517\" class=\"size-full wp-image-20403\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Han-che-cua-SSL-mien-phi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Han-che-cua-SSL-mien-phi-300x194.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Han-che-cua-SSL-mien-phi-768x496.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Han-che-cua-SSL-mien-phi-750x485.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20403\" class=\"wp-caption-text\">H\u1ea1n ch\u1ebf c\u1ee7a SSL mi\u1ec5n ph\u00ed<\/figcaption><\/figure>\n<h4>\u00a0Kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh h\u1ea1n ch\u1ebf<\/h4>\n<p>C\u00e1c nh\u00e0 cung c\u1ea5p SSL mi\u1ec5n ph\u00ed th\u01b0\u1eddng<strong> gi\u1edbi h\u1ea1n kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh trong c\u1ea5u h\u00ecnh ch\u1ee9ng ch\u1ec9<\/strong>, v\u00ed d\u1ee5 nh\u01b0 kh\u00f4ng cho ph\u00e9p thay \u0111\u1ed5i th\u1eddi h\u1ea1n ch\u1ee9ng ch\u1ec9 qu\u00e1 90 ng\u00e0y ho\u1eb7c t\u00edch h\u1ee3p c\u00e1c t\u00ednh n\u0103ng m\u1edf r\u1ed9ng d\u00e0nh cho doanh nghi\u1ec7p l\u1edbn. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng d\u1ef1 \u00e1n y\u00eau c\u1ea7u t\u00f9y ch\u1ec9nh b\u1ea3o m\u1eadt chuy\u00ean s\u00e2u.<\/p>\n<h4>\u0110\u1ed9 t\u00edn nhi\u1ec7m v\u00e0 ni\u1ec1m tin t\u1eeb ng\u01b0\u1eddi d\u00f9ng<\/h4>\n<p>D\u00f9 SSL mi\u1ec5n ph\u00ed nh\u01b0 Let\u2019s Encrypt \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i v\u00e0 s\u1eed d\u1ee5ng b\u1edfi nhi\u1ec1u website l\u1edbn, nh\u01b0ng v\u1eabn t\u1ed3n t\u1ea1i t\u00e2m l\u00fd r\u1eb1ng ch\u1ee9ng ch\u1ec9 tr\u1ea3 ph\u00ed mang l\u1ea1i m\u1ee9c \u0111\u1ed9 tin c\u1eady cao h\u01a1n.<\/p>\n<p>C\u00e1c ch\u1ee9ng ch\u1ec9 EV SSL ho\u1eb7c OV SSL c\u00f3 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb chi ti\u1ebft doanh nghi\u1ec7p tr\u00ean thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t, gi\u00fap t\u0103ng \u0111\u1ed9 tin c\u1eady v\u00e0 uy t\u00edn trong m\u1eaft ng\u01b0\u1eddi d\u00f9ng \u2013 \u0111i\u1ec1u m\u00e0 ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed kh\u00f4ng th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c\u200b.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-Free-SSL-va-SSL-tra-phi\"><\/span>So s\u00e1nh Free SSL v\u00e0 SSL tr\u1ea3 ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec7c t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt cho website, hai lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL tr\u1ea3 ph\u00ed v\u00e0 mi\u1ec5n ph\u00ed c\u00f3 nhi\u1ec1u \u0111i\u1ec3m kh\u00e1c bi\u1ec7t quan tr\u1ecdng m\u00e0 b\u1ea1n n\u00ean c\u00e2n nh\u1eafc:<\/p>\n<p>\u0110\u1ea7u ti\u00ean, ch\u1ee9ng ch\u1ec9 SSL tr\u1ea3 ph\u00ed th\u01b0\u1eddng mang l\u1ea1i m\u1ee9c \u0111\u1ed9 an to\u00e0n cao h\u01a1n so v\u1edbi SSL mi\u1ec5n ph\u00ed. SSL mi\u1ec5n ph\u00ed kh\u00f4ng y\u00eau c\u1ea7u b\u1ea5t k\u1ef3 th\u1ee7 t\u1ee5c ph\u00e1p l\u00fd n\u00e0o, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 khi g\u1eb7p s\u1ef1 c\u1ed1, b\u1ea1n s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi ph\u00e1p lu\u1eadt. Ng\u01b0\u1ee3c l\u1ea1i, SSL tr\u1ea3 ph\u00ed cung c\u1ea5p s\u1ef1 b\u1ea3o v\u1ec7 h\u1ee3p ph\u00e1p, gi\u00fap b\u1ea1n y\u00ean t\u00e2m h\u01a1n khi v\u1eadn h\u00e0nh website.<\/p>\n<p>M\u1ed9t \u0111i\u1ec3m kh\u00e1c l\u00e0 th\u1eddi gian hi\u1ec7u l\u1ef1c. SSL mi\u1ec5n ph\u00ed ch\u1ec9 <strong>b\u1ea3o v\u1ec7 website c\u1ee7a b\u1ea1n trong kho\u1ea3ng 99 ng\u00e0y<\/strong>, trong khi ch\u1ee9ng ch\u1ec9 <strong>SSL tr\u1ea3 ph\u00ed c\u00f3 th\u1ec3 k\u00e9o d\u00e0i t\u1eeb 1 \u0111\u1ebfn 5 n\u0103m<\/strong> v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 nhi\u1ec1u trang web c\u00f9ng l\u00fac. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 ti\u1ebft ki\u1ec7m th\u1eddi gian m\u00e0 c\u00f2n gi\u00fap b\u1ea1n qu\u1ea3n l\u00fd d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<figure id=\"attachment_20405\" aria-describedby=\"caption-attachment-20405\" style=\"width: 910px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/So-sanh-Free-SSL-va-SSL-tra-phi.jpg\" alt=\"So s\u00e1nh Free SSL v\u00e0 SSL tr\u1ea3 ph\u00ed\" width=\"910\" height=\"400\" class=\"size-full wp-image-20405\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/So-sanh-Free-SSL-va-SSL-tra-phi.jpg 910w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/So-sanh-Free-SSL-va-SSL-tra-phi-300x132.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/So-sanh-Free-SSL-va-SSL-tra-phi-768x338.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/So-sanh-Free-SSL-va-SSL-tra-phi-750x330.jpg 750w\" sizes=\"auto, (max-width: 910px) 100vw, 910px\" \/><figcaption id=\"caption-attachment-20405\" class=\"wp-caption-text\">So s\u00e1nh Free SSL v\u00e0 SSL tr\u1ea3 ph\u00ed<\/figcaption><\/figure>\n<p>Ch\u1ee9ng ch\u1ec9 SSL tr\u1ea3 ph\u00ed c\u0169ng cung c\u1ea5p d\u1ea5u ch\u1ee9ng nh\u1eadn an to\u00e0n, \u0111i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 t\u0103ng c\u01b0\u1eddng ni\u1ec1m tin c\u1ee7a kh\u00e1ch h\u00e0ng m\u00e0 c\u00f2n t\u1ea1o \u1ea5n t\u01b0\u1ee3ng t\u00edch c\u1ef1c v\u1edbi Google. Ng\u01b0\u1ee3c l\u1ea1i, SSL mi\u1ec5n ph\u00ed kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady cho c\u1ea3 ng\u01b0\u1eddi d\u00f9ng l\u1eabn c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm.<\/p>\n<p>\u0110\u1eb7c bi\u1ec7t, SSL tr\u1ea3 ph\u00ed c\u00f3 <strong>kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 t\u1ed1t h\u01a1n tr\u01b0\u1edbc c\u00e1c ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1<\/strong>i v\u00e0 c\u00e1c cu\u1ed9c <a href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/\">t\u1ea5n c\u00f4ng DDoS<\/a>, gi\u00fap b\u1ea3o v\u1ec7 website c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n. Trong khi \u0111\u00f3, SSL mi\u1ec5n ph\u00ed l\u1ea1i kh\u00f4ng th\u1ec3 cung c\u1ea5p nh\u1eefng t\u00ednh n\u0103ng n\u00e0y.<\/p>\n<p>Cu\u1ed1i c\u00f9ng, t\u00ednh n\u0103ng sao l\u01b0u trang web, gi\u00fap<strong> b\u1ea3o v\u1ec7 t\u00ednh li\u00ean t\u1ee5c trong ho\u1ea1t \u0111\u1ed9ng c\u1ee7a website<\/strong>, c\u0169ng ch\u1ec9 c\u00f3 \u1edf ch\u1ee9ng ch\u1ec9 SSL tr\u1ea3 ph\u00ed. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t n\u1ebfu b\u1ea1n mu\u1ed1n \u0111\u1ea3m b\u1ea3o r\u1eb1ng website lu\u00f4n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>T\u00f3m l\u1ea1i, m\u1eb7c d\u00f9 SSL mi\u1ec5n ph\u00ed c\u00f3 v\u1ebb h\u1ea5p d\u1eabn, nh\u01b0ng vi\u1ec7c \u0111\u1ea7u t\u01b0 v\u00e0o ch\u1ee9ng ch\u1ec9 SSL tr\u1ea3 ph\u00ed s\u1ebd gi\u00fap b\u1ea1n b\u1ea3o v\u1ec7 website c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch t\u1ed1t nh\u1ea5t, mang l\u1ea1i s\u1ef1 an t\u00e2m v\u00e0 t\u0103ng c\u01b0\u1eddng ni\u1ec1m tin t\u1eeb kh\u00e1ch h\u00e0ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL\"><\/span>H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t Free SSL b\u1eb1ng ZeroSSL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c c\u00e0i \u0111\u1eb7t ZeroSSL kh\u00f4ng ph\u1ee9c t\u1ea1p, b\u1ea1n ch\u1ec9 c\u1ea7n l\u00e0m theo c\u00e1c b\u01b0\u1edbc d\u01b0\u1edbi \u0111\u00e2y m\u1ed9t c\u00e1ch tu\u1ea7n t\u1ef1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tai-sao-nen-chon-ZeroSSL\"><\/span>T\u1ea1i sao n\u00ean ch\u1ecdn ZeroSSL?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ch\u1ee9ng ch\u1ec9 g\u1ed1c DST Root CA X3 c\u1ee7a Let\u2019s Encrypt \u2013 nh\u00e0 cung c\u1ea5p ch\u1ee9ng ch\u1ec9 HTTPS mi\u1ec5n ph\u00ed \u2013 \u0111\u00e3 h\u1ebft h\u1ea1n. \u0110i\u1ec1u n\u00e0y g\u00e2y ra l\u1ed7i \u201cC\u1ea3nh b\u00e1o b\u1ea3o m\u1eadt\u201d tr\u00ean m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb c\u0169 nh\u01b0 Windows XP, 7, 8, ho\u1eb7c c\u00e1c phi\u00ean b\u1ea3n iOS l\u1ed7i th\u1eddi. V\u00ec v\u1eady, c\u00e0i \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng ZeroSSL l\u00e0 gi\u1ea3i ph\u00e1p quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec b\u1ea3o m\u1eadt cho trang web trong t\u00ecnh h\u00ecnh hi\u1ec7n t\u1ea1i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-1-Dang-ky-tai-khoan-tren-ZeroSSLcom\"><\/span>B\u01b0\u1edbc 1: \u0110\u0103ng k\u00fd t\u00e0i kho\u1ea3n tr\u00ean ZeroSSL.com<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Truy c\u1eadp <strong><a href=\"https:\/\/zerossl.com\/\" target=\"_blank\" rel=\"noopener\">trang ch\u1ee7 ZeroSSL<\/a><\/strong>. Sau \u0111\u00f3, ti\u1ebfn h\u00e0nh \u0111\u0103ng k\u00fd t\u00e0i kho\u1ea3n b\u1eb1ng email c\u1ee7a b\u1ea1n, email n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft v\u00e0 \u0111\u0103ng k\u00fd ch\u1ee9ng ch\u1ec9 cho t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n.<\/p>\n<p>Sau khi \u0111\u0103ng k\u00fd th\u00e0nh c\u00f4ng, b\u1ea1n \u0111\u0103ng nh\u1eadp v\u00e0o t\u00e0i kho\u1ea3n, L\u00fac \u0111\u00f3 giao di\u1ec7n qu\u1ea3n tr\u1ecb c\u1ee7a ZeroSSL s\u1ebd hi\u1ec3n th\u1ecb. T\u1ea1i \u0111\u00e2y, b\u1ea1n c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a m\u00ecnh v\u00e0 b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t cho website.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-2-Tao-CSR-va-chon-thoi-han-SSL\"><\/span>B\u01b0\u1edbc 2: T\u1ea1o CSR v\u00e0 ch\u1ecdn th\u1eddi h\u1ea1n SSL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong Dashboard, b\u1ea1n ch\u1ecdn New Certificate \u0111\u1ec3 t\u1ea1o ch\u1ee9ng ch\u1ec9 m\u1edbi. L\u1ef1a ch\u1ecdn 90 Day Certificate \u0111\u1ec3 \u0111\u0103ng k\u00fd ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed trong 90 ng\u00e0y v\u00e0 sau khi h\u1ebft h\u1ea1n, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd l\u1ea1i t\u1ed1i \u0111a 3 l\u1ea7n. Nh\u1ea5n Next Step \u0111\u1ec3 ti\u1ebfp t\u1ee5c.<\/p>\n<p>Ch\u1ecdn Auto-Generate <a href=\"https:\/\/interdata.vn\/blog\/client-side-rendering-csr-la-gi\/\">CSR<\/a> \u0111\u1ec3 h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng t\u1ea1o m\u00e3 CSR (Certificate Signing Request) sau \u0111\u00f3 nh\u1ea5n Next Step \u0111\u1ec3 chuy\u1ec3n sang b\u01b0\u1edbc ti\u1ebfp theo.<\/p>\n<p>Ti\u1ebfp theo, b\u1ea1n ch\u1ecdn Free SSL n\u1ebfu b\u1ea1n mu\u1ed1n d\u00f9ng b\u1ea3n mi\u1ec5n ph\u00ed, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c g\u00f3i n\u00e2ng cao tr\u1ea3 ph\u00ed \u0111\u1ec3 t\u1eadn d\u1ee5ng th\u00eam t\u00ednh n\u0103ng b\u1ea3o m\u1eadt cao c\u1ea5p. Sau \u0111\u00f3 nh\u1ea5n Next Step \u0111\u1ec3 sang b\u01b0\u1edbc x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n.<\/p>\n<figure id=\"attachment_20409\" aria-describedby=\"caption-attachment-20409\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL.jpg\" alt=\"H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t Free SSL b\u1eb1ng ZeroSSL\" width=\"800\" height=\"500\" class=\"size-full wp-image-20409\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Huong-dan-cai-dat-Free-SSL-bang-ZeroSSL-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20409\" class=\"wp-caption-text\">H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t Free SSL b\u1eb1ng ZeroSSL<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-3-Xac-thuc-ten-mien\"><\/span>B\u01b0\u1edbc 3: X\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 ho\u00e0n t\u1ea5t, b\u1ea1n c\u1ea7n x\u00e1c th\u1ef1c quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n. B\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn m\u1ed9t trong 2 ph\u01b0\u01a1ng th\u1ee9c sau:<\/p>\n<h4>C\u00e1ch 1: X\u00e1c th\u1ef1c qua Email Domain<\/h4>\n<p>\u0110\u00e2y l\u00e0 c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t. Khi \u0111\u00f3, h\u1ec7 th\u1ed1ng s\u1ebd g\u1eedi email x\u00e1c th\u1ef1c \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 email li\u00ean quan \u0111\u1ebfn t\u00ean mi\u1ec1n. B\u1ea1n h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng email n\u00e0y \u0111ang ho\u1ea1t \u0111\u1ed9ng v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn th\u01b0 x\u00e1c th\u1ef1c.<\/p>\n<h4>C\u00e1ch 2: X\u00e1c th\u1ef1c qua HTTP File upload<\/h4>\n<p>B\u1ea1n ti\u1ebfn h\u00e0nh nh\u1ea5n Download Auth File \u0111\u1ec3 t\u1ea3i t\u1ec7p x\u00e1c th\u1ef1c v\u1ec1 m\u00e1y t\u00ednh, sau \u0111\u00f3 truy c\u1eadp v\u00e0o VPS\/Host c\u1ee7a b\u1ea1n v\u00e0 t\u00ecm \u0111\u1ebfn th\u01b0 m\u1ee5c ch\u1ee9a <a href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/\">m\u00e3 ngu\u1ed3n<\/a> c\u1ee7a website.<\/p>\n<p>T\u1ea1o \u0111\u01b0\u1eddng d\u1eabn th\u01b0 m\u1ee5c nh\u01b0 v\u00ed d\u1ee5 \u0111\u01b0\u1ee3c cung c\u1ea5p, th\u00f4ng th\u01b0\u1eddng s\u1ebd l\u00e0 <strong>\/pki-validation<\/strong>. Ti\u1ebfn h\u00e0nh upload t\u1ec7p v\u1eeba t\u1ea3i v\u00e0o th\u01b0 m\u1ee5c n\u00e0y.<\/p>\n<p>Sau khi upload, b\u1ea1n m\u1edf li\u00ean k\u1ebft t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 ki\u1ec3m tra xem file \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng ch\u01b0a v\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o li\u00ean k\u1ebft tr\u1ea3 v\u1ec1 file \u0111\u00fang nh\u01b0 \u0111\u00e3 upload. Ti\u1ebfp t\u1ee5c nh\u1ea5n Verify Domain \u0111\u1ec3 b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c. Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng m\u1ea5t v\u00e0i ph\u00fat \u0111\u1ec3 ho\u00e0n t\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-4-Tai-chung-chi-SSL\"><\/span>B\u01b0\u1edbc 4: T\u1ea3i ch\u1ee9ng ch\u1ec9 SSL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sau khi x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n th\u00e0nh c\u00f4ng, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c file ch\u1ee9ng ch\u1ec9 SSL. Th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau \u0111\u1ec3 t\u1ea3i v\u00e0 x\u1eed l\u00fd ch\u1ee9ng ch\u1ec9:<\/p>\n<p>Nh\u1ea5n v\u00e0o Download Certificate (zip) \u0111\u1ec3 t\u1ea3i file v\u1ec1 m\u00e1y. Sau khi t\u1ea3i v\u1ec1, gi\u1ea3i n\u00e9n t\u1ec7p. B\u1ea1n s\u1ebd th\u1ea5y ba file quan tr\u1ecdng sau:<\/p>\n<ul>\n<li><strong>ca_bundle.crt<\/strong>: Ch\u1ee9a CA Root (ch\u1ee9ng ch\u1ec9 g\u1ed1c).<\/li>\n<li><strong>certificate.crt<\/strong>: \u0110\u00e2y l\u00e0 ch\u1ee9ng ch\u1ec9 SSL cho website c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>private.key<\/strong>: \u0110\u00e2y l\u00e0 Private Key, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o m\u1eadt k\u1ebft n\u1ed1i.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-5-Upload-chung-chi-len-may-chu\"><\/span>B\u01b0\u1edbc 5: Upload ch\u1ee9ng ch\u1ec9 l\u00ean m\u00e1y ch\u1ee7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 ho\u00e0n t\u1ea5t c\u00e0i \u0111\u1eb7t, b\u1ea1n c\u1ea7n th\u00eam c\u00e1c ch\u1ee9ng ch\u1ec9 n\u00e0y l\u00ean m\u00e1y ch\u1ee7 VPS\/Hosting c\u1ee7a m\u00ecnh \u0111\u1ec3 ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Top-5-nha-cung-cap-Free-SSL-uy-tin\"><\/span>Top 5 nh\u00e0 cung c\u1ea5p Free SSL uy t\u00edn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed \u0111\u1ec3 b\u1ea3o v\u1ec7 website c\u1ee7a m\u00ecnh, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 5 nh\u00e0 cung c\u1ea5p Free SSL uy t\u00edn \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi tin d\u00f9ng:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-SSLforFree\"><\/span>1. SSLforFree<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>T\u00ednh n\u0103ng n\u1ed5i b\u1eadt: Cung c\u1ea5p ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed v\u1edbi th\u1eddi h\u1ea1n 90 ng\u00e0y, c\u00f3 th\u1ec3 gia h\u1ea1n kh\u00f4ng gi\u1edbi h\u1ea1n.<\/li>\n<li>\u0110i\u1ec3m m\u1ea1nh: D\u1ec5 s\u1eed d\u1ee5ng, kh\u00f4ng y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p, v\u00e0 t\u00edch h\u1ee3p v\u1edbi nhi\u1ec1u n\u1ec1n t\u1ea3ng.<\/li>\n<li>Ph\u00f9 h\u1ee3p v\u1edbi: Nh\u1eefng website c\u00e1 nh\u00e2n ho\u1eb7c doanh nghi\u1ec7p nh\u1ecf kh\u00f4ng c\u00f3 nhu c\u1ea7u b\u1ea3o m\u1eadt ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2-Lets-Encrypt\"><\/span>2. Let&#8217;s Encrypt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>T\u00ednh n\u0103ng n\u1ed5i b\u1eadt: L\u00e0 t\u1ed5 ch\u1ee9c phi l\u1ee3i nhu\u1eadn \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u00e1c c\u00f4ng ty l\u1edbn nh\u01b0 Google, Mozilla, cung c\u1ea5p ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed v\u1edbi th\u1eddi h\u1ea1n 90 ng\u00e0y v\u00e0 gia h\u1ea1n t\u1ef1 \u0111\u1ed9ng.<\/li>\n<li>\u0110i\u1ec3m m\u1ea1nh: Ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed, d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u1edbi nhi\u1ec1u n\u1ec1n t\u1ea3ng v\u00e0 \u0111\u01b0\u1ee3c tin c\u1eady b\u1edfi h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t.<\/li>\n<li>Ph\u00f9 h\u1ee3p v\u1edbi: Website doanh nghi\u1ec7p, c\u00e1 nh\u00e2n c\u1ea7n b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n v\u00e0 tin c\u1eady.<\/li>\n<\/ul>\n<figure id=\"attachment_20406\" aria-describedby=\"caption-attachment-20406\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Lets-Encrypt.png\" alt=\"Nh\u00e0 cung c\u1ea5p SSL Free - Let&#039;s Encrypt\" width=\"800\" height=\"400\" class=\"size-full wp-image-20406\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Lets-Encrypt.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Lets-Encrypt-300x150.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Lets-Encrypt-768x384.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Lets-Encrypt-360x180.png 360w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Lets-Encrypt-750x375.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20406\" class=\"wp-caption-text\">Nh\u00e0 cung c\u1ea5p SSL Free &#8211; Let&#8217;s Encrypt<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"3-Comodo\"><\/span>3. Comodo<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>T\u00ednh n\u0103ng n\u1ed5i b\u1eadt: Cung c\u1ea5p 90 ng\u00e0y d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed cho ch\u1ee9ng ch\u1ec9 SSL cao c\u1ea5p.<\/li>\n<li>\u0110i\u1ec3m m\u1ea1nh: Sau th\u1eddi gian d\u00f9ng th\u1eed, b\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn mua c\u00e1c g\u00f3i n\u00e2ng cao n\u1ebfu c\u1ea7n.<\/li>\n<li>Ph\u00f9 h\u1ee3p v\u1edbi: Nh\u1eefng doanh nghi\u1ec7p mu\u1ed1n tr\u1ea3i nghi\u1ec7m tr\u01b0\u1edbc khi mua c\u00e1c g\u00f3i b\u1ea3o m\u1eadt cao c\u1ea5p.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"4-Cloudflare\"><\/span>4. Cloudflare<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>T\u00ednh n\u0103ng n\u1ed5i b\u1eadt: Cung c\u1ea5p SSL mi\u1ec5n ph\u00ed \u0111i k\u00e8m v\u1edbi d\u1ecbch v\u1ee5 CDN (<a href=\"https:\/\/interdata.vn\/blog\/cdn-la-gi\/\">M\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung<\/a>) \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 website.<\/li>\n<li>\u0110i\u1ec3m m\u1ea1nh: Ch\u1ee9ng ch\u1ec9 SSL t\u1ef1 \u0111\u1ed9ng k\u00edch ho\u1ea1t khi s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 CDN c\u1ee7a Cloudflare, kh\u00f4ng c\u1ea7n c\u1ea5u h\u00ecnh ph\u1ee9c t\u1ea1p.<\/li>\n<li>Ph\u00f9 h\u1ee3p v\u1edbi: C\u00e1c website mu\u1ed1n c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 v\u00e0 b\u1ea3o m\u1eadt \u0111\u1ed3ng th\u1eddi.<\/li>\n<\/ul>\n<figure id=\"attachment_20407\" aria-describedby=\"caption-attachment-20407\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Cloudflare.jpeg\" alt=\"Nh\u00e0 cung c\u1ea5p SSL Free - Cloudflare\" width=\"800\" height=\"500\" class=\"size-full wp-image-20407\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Cloudflare.jpeg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Cloudflare-300x188.jpeg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Cloudflare-768x480.jpeg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Nha-cung-cap-SSL-Free-Cloudflare-750x469.jpeg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-20407\" class=\"wp-caption-text\">Nh\u00e0 cung c\u1ea5p SSL Free &#8211; Cloudflare<\/figcaption><\/figure>\n<p>Nh\u1eefng nh\u00e0 cung c\u1ea5p n\u00e0y \u0111\u1ec1u l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady cho c\u00e1c website c\u1ea7n b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n m\u00e0 kh\u00f4ng t\u1ed1n chi ph\u00ed. T\u00f9y theo nhu c\u1ea7u, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn nh\u00e0 cung c\u1ea5p ph\u00f9 h\u1ee3p \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u v\u00e0 n\u00e2ng cao uy t\u00edn c\u1ee7a website.<\/p>\n<p>M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf so v\u1edbi SSL tr\u1ea3 ph\u00ed, nh\u01b0ng Free SSL v\u1eabn l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u cho nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng, \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u00e1c trang web nh\u1ecf ho\u1eb7c m\u1edbi b\u1eaft \u0111\u1ea7u. N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt ti\u1ebft ki\u1ec7m m\u00e0 v\u1eabn hi\u1ec7u qu\u1ea3, h\u00e3y c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng Free SSL v\u00e0 l\u00e0m theo h\u01b0\u1edbng d\u1eabn trong b\u00e0i vi\u1ebft \u0111\u1ec3 c\u00e0i \u0111\u1eb7t nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n<p>InterData.vn mang \u0111\u1ebfn c\u00e1c gi\u1ea3i ph\u00e1p m\u00e1y ch\u1ee7 ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0:<span>\u00a0<\/span><a href=\"https:\/\/interdata.vn\/vietnam-dedicated-server\/\">thu\u00ea Server v\u1eadt l\u00fd<\/a>,<span>\u00a0<\/span><a href=\"https:\/\/interdata.vn\/cloud-server\/\">thu\u00ea Cloud Server<\/a>,<span>\u00a0<\/span><a href=\"https:\/\/interdata.vn\/thue-vps\/\">thu\u00ea VPS gi\u00e1 r\u1ebb ch\u1ea5t l\u01b0\u1ee3ng<\/a><span>\u00a0<\/span>v\u00e0<span>\u00a0<\/span><a href=\"https:\/\/interdata.vn\/thue-hosting\/\">thu\u00ea Hosting ch\u1ea5t l\u01b0\u1ee3ng cao<\/a>. V\u1edbi h\u1ea1 t\u1ea7ng ph\u1ea7n c\u1ee9ng m\u1edbi nh\u1ea5t s\u1eed d\u1ee5ng b\u1ed9 vi x\u1eed l\u00fd<span>\u00a0<\/span><a href=\"https:\/\/interdata.vn\/blog\/cpu-amd-epyc-la-gi\/\">AMD EPYC<\/a><span>\u00a0<\/span>Gen3 c\u00f9ng NVMe U.2, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i v\u00e0 t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t d\u1eef li\u1ec7u nhanh ch\u00f3ng. Kh\u00e1ch h\u00e0ng s\u1ebd \u0111\u01b0\u1ee3c tr\u1ea3i nghi\u1ec7m d\u1ecbch v\u1ee5 \u1ed5n \u0111\u1ecbnh v\u1edbi uptime l\u00ean \u0111\u1ebfn 99.99% v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7\/365.<\/p>\n<p><strong>InterData<\/strong><\/p>\n<ul>\n<li><strong>Website:<\/strong><span>\u00a0<\/span>Interdata.vn<\/li>\n<li><strong>Hotline 24\/24:<\/strong><span>\u00a0<\/span>1900-636822<\/li>\n<li><strong>Email:<\/strong><span>\u00a0<\/span>Info@interdata.vn<\/li>\n<li><strong>VP\u0110D:<\/strong><span>\u00a0<\/span>240 Nguy\u1ec5n \u0110\u00ecnh Ch\u00ednh, P.11. Q. Ph\u00fa Nhu\u1eadn, TP. Ho\u0302\u0300 Ch\u00ed Minh<\/li>\n<li><strong>VPGD:<\/strong><span>\u00a0<\/span>S\u1ed1 211 \u0110\u01b0\u1eddng s\u1ed1 5, K\u0110T Lakeview City, P. An Ph\u00fa, TP. Th\u1ee7 \u0110\u1ee9c, TP. H\u1ed3 Ch\u00ed Minh<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Ng\u00e0y nay, b\u1ea3o m\u1eadt website l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu, \u0111\u1eb7c bi\u1ec7t khi ng\u01b0\u1eddi d\u00f9ng ng\u00e0y c\u00e0ng quan t\u00e2m \u0111\u1ebfn s\u1ef1 an to\u00e0n d\u1eef li\u1ec7u. V\u1eady Free SSL l\u00e0 g\u00ec? V\u1edbi chi ph\u00ed b\u1eb1ng 0 v\u00e0 d\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t, Free SSL tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c website c\u00e1 nh\u00e2n v\u00e0<\/p>\n","protected":false},"author":11,"featured_media":20410,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-20392","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vps"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/20392","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=20392"}],"version-history":[{"count":0,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/20392\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/20410"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=20392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=20392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=20392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}