{"id":12374418,"date":"2026-03-17T15:45:33","date_gmt":"2026-03-17T07:45:33","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e4%bb%8e%e5%85%a5%e9%97%a8%e5%88%b0%e7%b2%be%e9%80%9a%ef%bc%9a%e5%85%a8%e6%96%b9%e4%bd%8d%e8%a7%a3%e6%9e%90ssl%e8%af%81%e4%b9%a6%e7%9a%84%e4%bd%9c%e7%94%a8%e3%80%81%e7%b1%bb%e5%9e%8b%e4%b8%8e\/"},"modified":"2026-03-17T15:51:20","modified_gmt":"2026-03-17T07:51:20","slug":"ssl-certificate-guide-types-application-deployment-tutorial","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-guide-types-application-deployment-tutorial\/","title":{"rendered":"T\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao: Ph\u00e2n t\u00edch to\u00e0n di\u1ec7n v\u1ec1 vai tr\u00f2, lo\u1ea1i h\u00ecnh c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL v\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e1ch \u0111\u0103ng k\u00fd, tri\u1ec3n khai ch\u00fang"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng internet ng\u00e0y nay, b\u1ea3o m\u1eadt trang web \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t n\u1ec1n t\u1ea3ng kh\u00f4ng th\u1ec3 b\u1ecf qua. M\u1ed9t trang web an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng m\u00e0 c\u00f2n gi\u00fap trang web gi\u00e0nh \u0111\u01b0\u1ee3c s\u1ef1 tin t\u01b0\u1edfng t\u1eeb kh\u00e1ch truy c\u1eadp. M\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 c\u1ed1t l\u00f5i \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau n\u00e0y ch\u00ednh l\u00e0 giao th\u1ee9c SSL\/TLS c\u00f9ng v\u1edbi c\u00e1c ch\u1ee9ng ch\u1ec9 s\u1ed1 h\u00f3a c\u1ee7a n\u00f3 \u2013 ch\u1ee9ng ch\u1ec9 SSL. Ch\u1ee9ng ch\u1ec9 SSL gi\u1ed1ng nh\u01b0 \u201ch\u1ed9 chi\u1ebfu s\u1ed1\u201d v\u00e0 \u201ch\u1ed9p th\u01b0 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a an to\u00e0n\u201d c\u1ee7a trang web, thi\u1ebft l\u1eadp m\u1ed9t k\u00eanh truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a gi\u1eefa tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 trang web.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vai tr\u00f2 v\u00e0 gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSL ch\u1ee9ng ch\u1ec9 kh\u00f4ng \u0111\u01a1n thu\u1ea7n ch\u1ec9 l\u00e0 bi\u1ec3u t\u01b0\u1ee3ng \u201cchi\u1ebfc kh\u00f3a nh\u1ecf\u201d xu\u1ea5t hi\u1ec7n trong thanh \u0111\u1ecba ch\u1ec9. \u0110\u00f3 l\u00e0 m\u1ed9t b\u1ed9 c\u01a1 ch\u1ebf b\u1ea3o m\u1eadt ho\u00e0n ch\u1ec9nh, mang l\u1ea1i nhi\u1ec1u l\u1edbp b\u1ea3o v\u1ec7 cho c\u1ea3 trang web l\u1eabn ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u1ef1c hi\u1ec7n vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o m\u1ed9t trang web \u0111\u00e3 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL, tr\u00ecnh duy\u1ec7t c\u1ee7a h\u1ecd s\u1ebd th\u1ef1c hi\u1ec7n m\u1ed9t qu\u00e1 tr\u00ecnh \u201cgiao ti\u1ebfp\u201d (handshake) v\u1edbi m\u00e1y ch\u1ee7 \u0111\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a. T\u1ea5t c\u1ea3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa hai b\u00ean sau \u0111\u00f3 \u2013 bao g\u1ed3m th\u00f4ng tin \u0111\u0103ng nh\u1eadp, s\u1ed1 th\u1ebb t\u00edn d\u1ee5ng, d\u1eef li\u1ec7u c\u00e1 nh\u00e2n, n\u1ed9i dung tr\u00f2 chuy\u1ec7n, v.v. \u2013 \u0111\u1ec1u s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n d\u01b0\u1edbi d\u1ea1ng m\u00e3 h\u00f3a. Ngay c\u1ea3 khi d\u1eef li\u1ec7u b\u1ecb ng\u01b0\u1eddi th\u1ee9 ba ch\u1eb7n \u0111\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i, vi\u1ec7c gi\u1ea3i m\u00e3 ch\u00fang c\u0169ng s\u1ebd kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c n\u1ebfu kh\u00f4ng c\u00f3 kh\u00f3a ri\u00eang t\u01b0\u01a1ng \u1ee9ng. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 h\u00e0nh vi nghe l\u00e9n th\u00f4ng tin v\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb ng\u01b0\u1eddi trung gian.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/fi\/knowledge\/ssl-certificate\/ssl-certificate-types-application-process-website-security-configuration\/\">N\u1eafm v\u1eefng ch\u1ee9ng ch\u1ec9 SSL: Ph\u00e2n t\u00edch to\u00e0n di\u1ec7n v\u1ec1 lo\u1ea1i, quy tr\u00ecnh \u0111\u0103ng k\u00fd v\u00e0 c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt website<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">X\u00e1c minh danh t\u00ednh th\u1ef1c c\u1ee7a website<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 SSL \u0111\u01b0\u1ee3c c\u1ea5p b\u1edfi m\u1ed9t t\u1ed5 ch\u1ee9c b\u00ean th\u1ee9 ba \u0111\u00e1ng tin c\u1eady \u2013 t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (Certificate Authority \u2013 CA). Tr\u01b0\u1edbc khi c\u1ea5p ch\u1ee9ng ch\u1ec9, CA s\u1ebd ti\u1ebfn h\u00e0nh ki\u1ec3m tra nghi\u00eam ng\u1eb7t th\u00f4ng tin c\u1ee7a ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n. Do \u0111\u00f3, khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp m\u1ed9t trang web c\u00f3 ch\u1ee9ng ch\u1ec9 SSL h\u1ee3p l\u1ec7, tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng \u201ctrang web \u0111ang \u0111\u01b0\u1ee3c truy c\u1eadp th\u1ef1c s\u1ef1 l\u00e0 \u0111\u01a1n v\u1ecb m\u00e0 n\u00f3 tuy\u00ean b\u1ed1\u201d, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t trang web l\u1eeba \u0111\u1ea3o ho\u1eb7c trang web gi\u1ea3 m\u1ea1o. \u0110i\u1ec1u n\u00e0y gi\u00fap x\u00e2y d\u1ef1ng l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed1i v\u1edbi trang web \u0111\u00f3.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n<div class=\"grid grid-cols-1 md:grid-cols-2 gap-4 md:gap-6 mb-8 md:mb-10 mt-10\"> \r\n\t<!-- \u91cd\u590d\u5668\u5faa\u73af\u5f00\u59cb -->\r\n\t\t\r\n\t<!-- \u5546\u5bb6\u5361\u7247 -->\r\n\t<div class=\"bg-white dark:bg-gray-750 rounded-lg overflow-hidden shadow-md flex gap-1 flex-col     justify-between\" data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/bluehost-ssl-certificates\/\">\r\n\t\t<div class=\"flex items-start justify-between\"> \r\n\t\t\t<!-- \u5546\u5bb6logo -->\r\n\t\t\t<div class=\"w-16 h-16 bg-blue-200 dark:bg-blue-500\/30 flex items-center justify-center flex-shrink-0 p-3\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251231095917.webp\" alt=\"Ch\u1ee9ng ch\u1ec9 SSL Bluehost\" class=\"w-12 object-contain !dark-filter08\" title=\"\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t<!-- \u5546\u5bb6\u4fe1\u606f -->\r\n\t\t\t<div class=\"px-4 pt-2 flex-grow\">\r\n\t\t\t\t<div class=\"flex justify-between items-start mb-2\">\r\n\t\t\t\t\t<strong class=\"text-xl font-bold\">Ch\u1ee9ng ch\u1ec9 SSL Bluehost<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<span class=\"text-gray-500 dark:text-gray-300 !text-sm p-4 pb-0\">BlueHost SSL cung c\u1ea5p t\u00f9y ch\u1ecdn gia h\u1ea1n t\u1eeb 1-2 n\u0103m, h\u1ed7 tr\u1ee3 thu\u1eadt to\u00e1n RSA ho\u1eb7c ECC, \u0111\u1ed9 d\u00e0i kh\u00f3a l\u00ean \u0111\u1ebfn 4096 bit v\u00e0 b\u1ea3o hi\u1ec3m l\u00ean \u0111\u1ebfn 1,75 tri\u1ec7u USD.<\/span>\r\n\t\t\t\t<div class=\"flex flex-col gap-4 md:gap-6 justify-between p-4\"> \r\n\t\t\t<!-- \u6807\u7b7e -->\r\n\t\t\t\t\t\t\r\n\t\t\t<!-- \u6d3b\u52a8\u548c\u94fe\u63a5 --> \r\n\t\t\t<div class=\"flex justify-between items-center gap-3 flex-col\">\r\n\t\t\t\t\t\t\t\t<div class=\"text-gray-500 dark:text-gray-300 !text-sm line-clamp-1\">T\u1eeb 7,49 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/bluehost-ssl-certificates\/\" class=\"flex justify-end font-bold !text-lg !text-blue-600 dark:!text-blue-500\">Truy c\u1eadp ch\u1ee9ng ch\u1ec9 SSL Bluehost \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n\t<!-- \u5546\u5bb6\u5361\u7247 -->\r\n\t<div class=\"bg-white dark:bg-gray-750 rounded-lg overflow-hidden shadow-md flex gap-1 flex-col     justify-between\" data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-com-ssl-certificates\/\">\r\n\t\t<div class=\"flex items-start justify-between\"> \r\n\t\t\t<!-- \u5546\u5bb6logo -->\r\n\t\t\t<div class=\"w-16 h-16 bg-blue-200 dark:bg-blue-500\/30 flex items-center justify-center flex-shrink-0 p-3\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227070008.webp\" alt=\"Ch\u1ee9ng ch\u1ec9 SSL hosting.com\" class=\"w-12 object-contain !dark-filter08\" title=\"\">\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t<!-- \u5546\u5bb6\u4fe1\u606f -->\r\n\t\t\t<div class=\"px-4 pt-2 flex-grow\">\r\n\t\t\t\t<div class=\"flex justify-between items-start mb-2\">\r\n\t\t\t\t\t<strong class=\"text-xl font-bold\">Ch\u1ee9ng ch\u1ec9 SSL hosting.com<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<span class=\"text-gray-500 dark:text-gray-300 !text-sm p-4 pb-0\">Ch\u1ee9ng ch\u1ec9 SSL DV, OV, EV gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng, m\u00e3 h\u00f3a l\u00ean \u0111\u1ebfn 256 bit, s\u1ed1 ti\u1ec1n b\u1ea3o \u0111\u1ea3m t\u1eeb 5 ~ 100 tri\u1ec7u USD, h\u1ed7 tr\u1ee3 24\/7<\/span>\r\n\t\t\t\t<div class=\"flex flex-col gap-4 md:gap-6 justify-between p-4\"> \r\n\t\t\t<!-- \u6807\u7b7e -->\r\n\t\t\t\t\t\t\r\n\t\t\t<!-- \u6d3b\u52a8\u548c\u94fe\u63a5 --> \r\n\t\t\t<div class=\"flex justify-between items-center gap-3 flex-col\">\r\n\t\t\t\t\t\t\t\t<div class=\"text-gray-500 dark:text-gray-300 !text-sm line-clamp-1\">B\u1eaft \u0111\u1ea7u t\u1eeb $2.5 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-com-ssl-certificates\/\" class=\"flex justify-end font-bold !text-lg !text-blue-600 dark:!text-blue-500\">Truy c\u1eadp hosting.com Ch\u1ee9ng ch\u1ec9 SSL \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t<!-- \u91cd\u590d\u5668\u5faa\u73af\u7ed3\u675f -->\r\n<\/div>\r\n\r\n\r\n\n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h3 class=\"wp-block-heading\">N\u00e2ng cao th\u1ee9 h\u1ea1ng tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm v\u00e0 t\u0103ng m\u1ee9c \u0111\u1ed9 tin t\u01b0\u1edfng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm ph\u1ed5 bi\u1ebfn nh\u01b0 Google \u0111\u00e3 coi HTTPS nh\u01b0 m\u1ed9t y\u1ebfu t\u1ed1 t\u00edch c\u1ef1c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1ee9 h\u1ea1ng trang web trong k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm. Nh\u1eefng trang web s\u1eed d\u1ee5ng giao th\u1ee9c HTTPS th\u01b0\u1eddng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u01b0u ti\u00ean h\u01a1n trong danh s\u00e1ch k\u1ebft qu\u1ea3. Ngo\u00e0i ra, c\u00e1c tr\u00ecnh duy\u1ec7t hi\u1ec7n \u0111\u1ea1i (nh\u01b0 Chrome, Safari) s\u1ebd \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng nh\u1eefng trang web kh\u00f4ng s\u1eed d\u1ee5ng HTTPS l\u00e0 \u201ckh\u00f4ng an to\u00e0n\u201d, \u0111i\u1ec1u n\u00e0y l\u00e0m t\u0103ng t\u1ef7 l\u1ec7 ng\u01b0\u1eddi d\u00f9ng r\u1eddi trang web \u0111\u00f3. Ng\u01b0\u1ee3c l\u1ea1i, bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a an to\u00e0n m\u00e0u xanh l\u00e1 c\u00e2y v\u00e0 d\u1ea5u hi\u1ec7u \u201can to\u00e0n\u201d gi\u00fap n\u00e2ng cao \u0111\u00e1ng k\u1ec3 s\u1ef1 tin t\u01b0\u1edfng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng khi truy c\u1eadp v\u00e0 t\u0103ng kh\u1ea3 n\u0103ng h\u1ecd th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng mong mu\u1ed1n (ch\u1eb3ng h\u1ea1n nh\u01b0 mua s\u1eafm, \u0111\u0103ng k\u00fd, v.v.).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL ch\u00ednh v\u00e0 t\u00ecnh hu\u1ed1ng \u00e1p d\u1ee5ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c v\u00e0 ch\u1ee9c n\u0103ng, ch\u1ee9ng ch\u1ec9 SSL \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c lo\u1ea1i ch\u00ednh sau \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c trang web c\u00f3 quy m\u00f4 v\u00e0 lo\u1ea1i h\u00ecnh kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DV (Domain Validation) ch\u1ee9ng ch\u1ec9 l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 c\u00f3 m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c th\u1ea5p nh\u1ea5t nh\u01b0ng t\u1ed1c \u0111\u1ed9 c\u1ea5p ph\u00e1t nhanh nh\u1ea5t. Trung t\u00e2m ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authority) ch\u1ec9 ki\u1ec3m tra quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n c\u1ee7a ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n (th\u01b0\u1eddng th\u00f4ng qua vi\u1ec7c x\u00e1c minh c\u00e1c b\u1ea3n ghi DNS ho\u1eb7c email \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh). Lo\u1ea1i ch\u1ee9ng ch\u1ec9 n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c trang web c\u00e1 nh\u00e2n, blog, m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m, ho\u1eb7c b\u1ea5t k\u1ef3 tr\u01b0\u1eddng h\u1ee3p n\u00e0o ch\u1ec9 c\u1ea7n t\u00ednh n\u0103ng m\u00e3 h\u00f3a c\u01a1 b\u1ea3n. \u0110i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a DV ch\u1ee9ng ch\u1ec9 l\u00e0 chi ph\u00ed th\u1ea5p v\u00e0 th\u1eddi gian c\u1ea5p ph\u00e1t nhanh ch\u00f3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u1ed5 ch\u1ee9c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OV ch\u1ee9ng ch\u1ec9 cung c\u1ea5p m\u1ee9c \u0111\u1ed9 tin c\u1eady cao h\u01a1n so v\u1edbi DV ch\u1ee9ng ch\u1ec9. Nh\u00e0 cung c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA) kh\u00f4ng ch\u1ec9 x\u00e1c minh quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n m\u00e0 c\u00f2n ki\u1ec3m tra s\u1ef1 t\u1ed3n t\u1ea1i th\u1ef1c s\u1ef1 c\u1ee7a t\u1ed5 ch\u1ee9c n\u1ed9p \u0111\u01a1n (v\u00ed d\u1ee5: xem gi\u1ea5y ph\u00e9p kinh doanh v\u00e0 c\u00e1c t\u00e0i li\u1ec7u ph\u00e1p l\u00fd kh\u00e1c). Th\u00f4ng tin chi ti\u1ebft v\u1ec1 ch\u1ee9ng ch\u1ec9 s\u1ebd bao g\u1ed3m t\u00ean c\u1ee7a c\u00f4ng ty n\u1ed9p \u0111\u01a1n. OV ch\u1ee9ng ch\u1ec9 th\u00edch h\u1ee3p cho c\u00e1c trang web doanh nghi\u1ec7p, c\u1ed5ng th\u00f4ng tin t\u1ed5 ch\u1ee9c, v\u00e0 c\u00e1c trang web th\u01b0\u01a1ng m\u1ea1i kh\u00e1c c\u1ea7n th\u1ec3 hi\u1ec7n t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a t\u1ed5 ch\u1ee9c.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/fi\/knowledge\/ssl-certificate\/ssl-certificate-guide-how-it-works-types-and-https-configuration\/\">Chi ti\u1ebft v\u1ec1 ch\u1ee9ng ch\u1ec9 SSL: Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, l\u1ef1a ch\u1ecdn lo\u1ea1i v\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ea5u h\u00ecnh HTTPS<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c m\u1edf r\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">EV (Extended Validation) ch\u1ee9ng ch\u1ec9 l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c m\u1ed9t c\u00e1ch nghi\u00eam ng\u1eb7t nh\u1ea5t v\u00e0 c\u00f3 m\u1ee9c \u0111\u1ed9 tin c\u1eady cao nh\u1ea5t. C\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authorities) th\u1ef1c hi\u1ec7n quy tr\u00ecnh ki\u1ec3m tra ch\u1eb7t ch\u1ebd, bao g\u1ed3m vi\u1ec7c x\u00e1c minh s\u1ef1 t\u1ed3n t\u1ea1i v\u1ec1 m\u1eb7t ph\u00e1p l\u00fd, v\u1eadt l\u00fd v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ed5 ch\u1ee9c \u0111\u00f3. Trong tr\u00ecnh duy\u1ec7t, ch\u1ee9ng ch\u1ec9 EV \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb m\u1ed9t c\u00e1ch n\u1ed5i b\u1eadt: t\u00ean c\u00f4ng ty s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u00e0u xanh l\u00e1 c\u00e2y ngay trong thanh \u0111\u1ecba ch\u1ec9. \u0110\u00e2y t\u1eebng l\u00e0 ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn \u0111\u1ed1i v\u1edbi c\u00e1c trang web y\u00eau c\u1ea7u m\u1ee9c \u0111\u1ed9 tin c\u1eady cao, ch\u1eb3ng h\u1ea1n nh\u01b0 trong l\u0129nh v\u1ef1c t\u00e0i ch\u00ednh, th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, ho\u1eb7c c\u00e1c doanh nghi\u1ec7p l\u1edbn. M\u1eb7c d\u00f9 giao di\u1ec7n tr\u00ecnh duy\u1ec7t ng\u00e0y nay \u0111\u00e3 thay \u0111\u1ed5i, nh\u01b0ng c\u00e1c ti\u00eau chu\u1ea9n ki\u1ec3m tra nghi\u00eam ng\u1eb7t \u0111\u1eb1ng<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n v\u00e0 ch\u1ee9ng ch\u1ec9 k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 ba lo\u1ea1i ch\u1ee9ng ch\u1ec9 tr\u00ean \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i chi ti\u1ebft h\u01a1n d\u1ef1a tr\u00ean ph\u1ea1m vi b\u1ea3o v\u1ec7 c\u1ee7a ch\u00fang.  \n\u2013 Ch\u1ee9ng ch\u1ec9 cho m\u1ed9t t\u00ean mi\u1ec1n duy nh\u1ea5t ch\u1ec9 b\u1ea3o v\u1ec7 m\u1ed9t t\u00ean mi\u1ec1n c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: www.example.com).  \n\u2013 Ch\u1ee9ng ch\u1ec9 cho nhi\u1ec1u t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00f4ng li\u00ean quan \u0111\u1ebfn nhau trong c\u00f9ng m\u1ed9t ch\u1ee9ng ch\u1ec9 (v\u00ed d\u1ee5: example.com, example.net, shop.othersite.com).  \n\u2013 Ch\u1ee9ng ch\u1ec9 s\u1eed d\u1ee5ng k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n (wildcard) c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 m\u1ed9t t\u00ean mi\u1ec1n ch\u00ednh c\u00f9ng t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n con c\u00f9ng c\u1ea5p (v\u00ed d\u1ee5: *.example.com; c\u00f3 th\u1ec3 bao g\u1ed3m blog.example.com, shop.example.com, mail.example.com, v.v.), r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c doanh nghi\u1ec7p s\u1edf h\u1eefu nhi\u1ec1u t\u00ean mi\u1ec1n con.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u0103ng k\u00fd v\u00e0 nh\u1eadn ch\u1ee9ng ch\u1ec9 SSL?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quy tr\u00ecnh l\u1ea5y ch\u1ee9ng ch\u1ec9 SSL kh\u00e1 r\u00f5 r\u00e0ng v\u00e0 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh m\u1ed9t s\u1ed1 b\u01b0\u1edbc c\u1ee5 th\u1ec3.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n\n  <div class=\"flex justify-between items-center flex-col lg:flex-row xl:flex-col 2xl:flex-row gap-6 sm:gap-8 rounded-lg border border-gray-200 dark:border-gray-700 p-4 mb-8 lg:mb-10 sm:p-6 bg-white dark:bg-gray-750 shadow-md transition-colors duration-300\"\n         data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-ssl-certificates\/\">\n\n      <div class=\"flex flex-col gap-3 gap-4 sm:gap-6 w-full\">\n        <strong class=\"text-2xl font-semibold text-gray-900 dark:text-gray-200\">Ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a UltaHost<\/strong>\n        <div class=\"text-gray-600 dark:text-gray-300 word-word\">Ch\u1ee9ng ch\u1ec9 DV, EV, OV, h\u1ed7 tr\u1ee3 m\u1ee9c b\u1ea3o hi\u1ec3m t\u1ed1i \u0111a $1,750,000 USD, h\u1ed7 tr\u1ee3 v\u00f4 s\u1ed1 t\u00ean mi\u1ec1n ph\u1ee5, h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng iOS v\u00e0 Android, \u01b0u \u0111\u00e3i gi\u00e1 t\u1eeb 20% m\u1ed7i th\u00e1ng, v\u1edbi m\u1ee9c ph\u00ed $15,95 USD, b\u1ea3o l\u00e3nh ho\u00e0n ti\u1ec1n trong v\u00f2ng 30 ng\u00e0y.<\/div>\n      <\/div>\n\n      <div class=\"flex items-center flex-col md:flex-row lg:flex-col xl:flex-row 2xl:flex-col gap-6 shrink-0\">\n                  <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-ssl-certificates\/\">\n                          <!-- \u767d\u5929 -->\n              <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227020448.webp\" alt=\"Logo ch\u1ee9ng ch\u1ec9 SSL\" class=\"content-promotion-card-icon h-9 min-h-9 dark:hidden\" title=\"\">\n              <!-- \u591c\u95f4 -->\n              <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251229052118.webp\" alt=\"Logo ch\u1ee9ng ch\u1ec9 SSL\" class=\"content-promotion-card-icon h-9 min-h-9 hidden dark:block\" title=\"\">\n                      <\/a>\n          \n        <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-ssl-certificates\/\"\n           class=\"bg-blue-500 w-full md:w-auto lg:w-full xl:w-auto 2xl:w-full text-center !text-white dark:!text-gray-200 !px-5 !py-1.5 rounded-full hover:bg-blue-600 transition-colors\">\n          Truy c\u1eadp UltaHost        <\/a>\n      <\/div>\n    <\/div>\n\n    \n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: T\u1ea1o Y\u00eau c\u1ea7u K\u00fd Ch\u1ee9ng ch\u1ec9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n (ch\u1eb3ng h\u1ea1n nh\u01b0 Nginx, Apache, Tomcat v.v.), b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 t\u1ea1o m\u1ed9t c\u1eb7p kh\u00f3a (kh\u00f3a ri\u00eang v\u00e0 kh\u00f3a c\u00f4ng) c\u00f9ng v\u1edbi m\u1ed9t t\u1ec7p y\u00eau c\u1ea7u k\u00fd ch\u1ee9ng ch\u1ec9 (Certificate Signing Request \u2013 CSR). T\u1ec7p CSR ch\u1ee9a kh\u00f3a c\u00f4ng c\u1ee7a b\u1ea1n, t\u00ean mi\u1ec1n, th\u00f4ng tin c\u00f4ng ty, v.v. Kh\u00f3a ri\u00eang ph\u1ea3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef m\u1ed9t c\u00e1ch an to\u00e0n tr\u00ean m\u00e1y ch\u1ee7 v\u00e0 tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c ti\u1ebft l\u1ed9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc th\u1ee9 hai: Ch\u1ecdn t\u1ed5 ch\u1ee9c cung c\u1ea5p d\u1ecbch v\u1ee5 ch\u1ee9ng nh\u1eadn (CA \u2013 Certificate Authority) v\u00e0 n\u1ed9p \u0111\u01a1n xin c\u1ea5p ch\u1ee9ng ch\u1ec9.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean nhu c\u1ea7u c\u1ee7a b\u1ea1n (lo\u1ea1i x\u00e1c th\u1ef1c, th\u01b0\u01a1ng hi\u1ec7u, ng\u00e2n s\u00e1ch, v.v.), h\u00e3y ch\u1ecdn m\u1ed9t t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 s\u1ed1 (CA) \u0111\u00e1ng tin c\u1eady ho\u1eb7c \u0111\u1ea1i l\u00fd c\u1ee7a h\u1ecd. \u0110\u0103ng k\u00fd tr\u00ean trang web c\u1ee7a h\u1ecd v\u00e0 d\u00e1n n\u1ed9i dung t\u1ec7p CSR (Certificate Signing Request) \u0111\u01b0\u1ee3c t\u1ea1o ra v\u00e0o v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u. \u0110\u1ed1i v\u1edbi c\u00e1c ch\u1ee9ng ch\u1ec9 lo\u1ea1i OV (Organizational Validation) v\u00e0 EV (Extended Validation), b\u1ea1n c\u0169ng c\u1ea7n n\u1ed9p c\u00e1c t\u00e0i li\u1ec7u ch\u1ee9ng minh t\u1ed5 ch\u1ee9c li\u00ean quan theo y\u00eau c\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc th\u1ee9 ba: Ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n\/t\u1ed5 ch\u1ee9c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CA (Certificate Authority) s\u1ebd b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c d\u1ef1a tr\u00ean lo\u1ea1i ch\u1ee9ng ch\u1ec9 m\u00e0 b\u1ea1n \u0111\u00e3 y\u00eau c\u1ea7u. \u0110\u1ed1i v\u1edbi ch\u1ee9ng ch\u1ec9 DV (Domain Validation), b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft l\u1eadp c\u00e1c b\u1ea3n ghi DNS \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ho\u1eb7c nh\u1eadn email x\u00e1c th\u1ef1c \u0111\u1ec3 x\u00e1c nh\u1eadn quy\u1ec1n ki\u1ec3m so\u00e1t t\u00ean mi\u1ec1n c\u1ee7a m\u00ecnh. \u0110\u1ed1i v\u1edbi ch\u1ee9ng ch\u1ec9 OV\/EV (Organizational Validation\/Extended Validation), CA c\u00f3 th\u1ec3 x\u00e1c minh th\u00f4ng tin t\u1ed5 ch\u1ee9c th\u00f4ng qua \u0111i\u1ec7n tho\u1ea1i, c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a b\u00ean th\u1ee9 ba, ho\u1eb7c c\u00e1c ph\u01b0\u01a1ng th\u1ee9c kh\u00e1c.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/fi\/knowledge\/ssl-certificate\/ssl-certificate-guide-choose-install-verify-website-security-encryption\/\">H\u01b0\u1edbng d\u1eabn ho\u00e0n ch\u1ec9nh v\u1ec1 ch\u1ee9ng ch\u1ec9 SSL: C\u00e1ch ch\u1ecdn, c\u00e0i \u0111\u1eb7t v\u00e0 x\u00e1c minh m\u00e3 h\u00f3a b\u1ea3o m\u1eadt trang web<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc th\u1ee9 t\u01b0: Ph\u00e1t h\u00e0nh v\u00e0 t\u1ea3i xu\u1ed1ng ch\u1ee9ng ch\u1ec9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c \u0111\u01b0\u1ee3c ho\u00e0n t\u1ea5t, t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authority) s\u1ebd ph\u00e1t h\u00e0nh ch\u1ee9ng ch\u1ec9. B\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i g\u00f3i ch\u1ee9ng ch\u1ec9 t\u1eeb console c\u1ee7a CA, trong \u0111\u00f3 bao g\u1ed3m ch\u1ee9ng ch\u1ec9 m\u00e1y ch\u1ee7 (v\u00e0 c\u00f3 th\u1ec3 c\u1ea3 c\u00e1c ch\u1ee9ng ch\u1ec9 trung gian n\u1ebfu \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u). C\u00e1c t\u1ec7p ch\u1ee9ng ch\u1ec9 th\u01b0\u1eddng c\u00f3 ph\u1ea7n m\u1edf r\u1ed9ng nh\u01b0 .crt, .cer, ho\u1eb7c .pem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1ef1a ch\u1ecdn ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4e2a\u4eba\u6216\u9884\u7b97\u6709\u9650\u7684\u7528\u6237\uff0cLet\u2018s Encrypt\u662f\u4e00\u4e2a\u4f18\u79c0\u7684\u514d\u8d39CA\u9009\u62e9\u3002\u5b83\u63d0\u4f9b\u81ea\u52a8\u7b7e\u53d1\u7684DV\u8bc1\u4e66\uff0c\u6709\u6548\u671f90\u5929\uff0c\u53ef\u4ee5\u901a\u8fc7Certbot\u7b49\u5de5\u5177\u5b9e\u73b0\u81ea\u52a8\u5316\u7eed\u671f\uff0c\u5b8c\u5168\u514d\u8d39\u4e14\u6d41\u7a0b\u9ad8\u5ea6\u81ea\u52a8\u5316\uff0c\u6781\u5927\u5730\u63a8\u52a8\u4e86HTTPS\u7684\u666e\u53ca\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tri\u1ec3n khai v\u00e0 c\u1ea5u h\u00ecnh ch\u1ee9ng ch\u1ec9 SSL tr\u00ean m\u00e1y ch\u1ee7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi b\u1ea1n \u0111\u00e3 l\u1ea5y \u0111\u01b0\u1ee3c t\u1ec7p ch\u1ee9ng ch\u1ec9, b\u01b0\u1edbc quan tr\u1ecdng ti\u1ebfp theo l\u00e0 tri\u1ec3n khai n\u00f3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c tr\u00ean m\u00e1y ch\u1ee7 Web c\u1ee7a m\u00ecnh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee5 th\u1ec3 cho hai lo\u1ea1i m\u00e1y ch\u1ee7 ph\u1ed5 bi\u1ebfn l\u00e0 Nginx v\u00e0 Apache.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 Nginx<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 m\u00e1y ch\u1ee7 m\u00e0 b\u1ea1n \u0111\u00e3 t\u1ea3i v\u1ec1 (th\u01b0\u1eddng c\u00f3 t\u00ean l\u00e0\u2026) <code data-no-auto-translation=\"\">your_domain.crt<\/code>) v\u00e0 kh\u00f3a ri\u00eang (<code data-no-auto-translation=\"\">your_domain.key<\/code>) T\u1ea3i l\u00ean m\u1ed9t th\u01b0 m\u1ee5c an to\u00e0n tr\u00ean m\u00e1y ch\u1ee7 (v\u00ed d\u1ee5: <code data-no-auto-translation=\"\">\/etc\/ssl\/<\/code>Sau \u0111\u00f3, h\u00e3y ch\u1ec9nh s\u1eeda t\u1ec7p c\u1ea5u h\u00ecnh Nginx tr\u00ean trang web c\u1ee7a b\u1ea1n (th\u01b0\u1eddng n\u1eb1m \u1edf \u0111\u01b0\u1eddng d\u1eabn \u2026). <code data-no-auto-translation=\"\">\/etc\/nginx\/sites-available\/<\/code> (D\u01b0\u1edbi).<br \/>\nC\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n \u0111i\u1ec1u g\u00ec \u0111\u00f3 tr\u00ean c\u01a1 s\u1edf n\u1ed9i dung hi\u1ec7n c\u00f3 (t\u1ee9c l\u00e0 tr\u00ean nh\u1eefng g\u00ec \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ho\u1eb7c thi\u1ebft l\u1eadp tr\u01b0\u1edbc \u0111\u00f3). <code data-no-auto-translation=\"\">listen 80;<\/code> B\u00ean c\u1ea1nh kh\u1ed1i m\u00e1y ch\u1ee7 hi\u1ec7n c\u00f3, h\u00e3y th\u00eam m\u1ed9t kh\u1ed1i m\u00e1y ch\u1ee7 m\u1edbi \u0111\u1ec3 l\u1eafng nghe c\u1ed5ng 443 (c\u1ed5ng m\u1eb7c \u0111\u1ecbnh c\u1ee7a HTTPS). C\u00e1c l\u1ec7nh c\u1ea5u h\u00ecnh c\u1ed1t l\u00f5i bao g\u1ed3m vi\u1ec7c ch\u1ec9 \u0111\u1ecbnh \u0111\u01b0\u1eddng d\u1eabn t\u1edbi ch\u1ee9ng ch\u1ec9 SSL v\u00e0 kh\u00f3a ri\u00eang, \u0111\u1ed3ng th\u1eddi ch\u1ecdn giao th\u1ee9c SSL v\u00e0 b\u1ed9 c\u00f4ng c\u1ee5 m\u00e3 h\u00f3a ph\u00f9 h\u1ee3p nh\u1eb1m t\u0103ng c\u01b0\u1eddng t\u00ednh b\u1ea3o m\u1eadt. Sau khi ho\u00e0n t\u1ea5t vi\u1ec7c c\u1ea5u h\u00ecnh, h\u00e3y s\u1eed d\u1ee5ng\u2026 <code data-no-auto-translation=\"\">nginx -t<\/code> Ki\u1ec3m tra c\u00fa ph\u00e1p c\u1ea5u h\u00ecnh; n\u1ebfu kh\u00f4ng c\u00f3 l\u1ed7i, h\u00e3y ch\u1ea5p nh\u1eadn n\u00f3. <code data-no-auto-translation=\"\">systemctl reload nginx<\/code> T\u1ea3i l\u1ea1i c\u1ea5u h\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 Apache<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 Apache, b\u1ea1n c\u0169ng c\u1ea7n t\u1ea3i l\u00ean c\u00e1c t\u1ec7p ch\u1ee9ng ch\u1ec9 v\u00e0 kh\u00f3a ri\u00eang. Sau \u0111\u00f3, h\u00e3y ch\u1ec9nh s\u1eeda t\u1ec7p c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u1ea3o c\u1ee7a m\u00ecnh (v\u00ed d\u1ee5: <code data-no-auto-translation=\"\">\/etc\/apache2\/sites-available\/your-site.conf<\/code>\uff09\u3002<br \/>\nSau khi b\u1eadt m\u00f4-\u0111un SSL, h\u00e3y th\u00eam n\u00f3 v\u00e0o c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u1ea3o. <code data-no-auto-translation=\"\">SSLEngine on<\/code> Th\u1ef1c hi\u1ec7n c\u00e1c l\u1ec7nh \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, v\u00e0 ti\u1ebfp t\u1ee5c ti\u1ebfn h\u00e0nh theo quy tr\u00ecnh \u0111\u00e3 \u0111\u1ecbnh. <code data-no-auto-translation=\"\">SSLCertificateFile<\/code> \u548c <code data-no-auto-translation=\"\">SSLCertificateKeyFile<\/code> C\u00e1c l\u1ec7nh n\u00e0y ch\u1ec9 \u0111\u1ecbnh l\u1ea7n l\u01b0\u1ee3t \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ebfn t\u1ec7p ch\u1ee9ng ch\u1ec9 v\u00e0 t\u1ec7p kh\u00f3a ri\u00eang. B\u1ea1n c\u0169ng c\u1ea7n c\u1ea5u h\u00ecnh giao th\u1ee9c SSL \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt. Sau khi ho\u00e0n t\u1ea5t vi\u1ec7c c\u1ea5u h\u00ecnh, h\u00e3y s\u1eed d\u1ee5ng ch\u00fang. <code data-no-auto-translation=\"\">apachectl configtest<\/code> Th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m, sau \u0111\u00f3 kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5 Apache.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chuy\u1ec3n h\u01b0\u1edbng HTTPS b\u1eaft bu\u1ed9c v\u00e0 HSTS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi qu\u00e1 tr\u00ecnh tri\u1ec3n khai ho\u00e0n t\u1ea5t, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng to\u00e0n b\u1ed9 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ec1u \u0111i qua k\u00eanh HTTPS an to\u00e0n, b\u1ea1n c\u1ea7n c\u1ea5u h\u00ecnh vi\u1ec7c chuy\u1ec3n h\u01b0\u1edbng (301 redirect) t\u1eeb HTTP sang HTTPS. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c quy t\u1eafc ghi \u0111\u00e8 (rewrite rules) v\u00e0o kh\u1ed1i l\u1eafng nghe (listening block) tr\u00ean c\u1ed5ng 80 c\u1ee7a m\u00e1y ch\u1ee7.<br \/>\nNgo\u00e0i ra, b\u1ea1n c\u00f2n c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t HSTS (HTTP Strict Transport Security). B\u1eb1ng c\u00e1ch th\u00eam th\u00f4ng tin v\u00e0o ti\u00eau \u0111\u1ec1 ph\u1ea3n h\u1ed3i (response header), b\u1ea1n y\u00eau c\u1ea7u tr\u00ecnh duy\u1ec7t ph\u1ea3i s\u1eed d\u1ee5ng giao th\u1ee9c HTTPS cho m\u1ecdi l\u1ea7n truy c\u1eadp v\u00e0o trang web \u0111\u00f3 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh (v\u00ed d\u1ee5: m\u1ed9t n\u0103m). \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u1eb1m l\u1ea5y c\u1eafp th\u00f4ng tin \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a b\u1eb1ng SSL. Tuy nhi\u00ean, h\u00e3y c\u1ea9n th\u1eadn khi k\u00edch ho\u1ea1t t\u00ednh n\u0103ng n\u00e0y; \u0111\u1eebng v\u1ed9i v\u00e0ng l\u00e0m v\u1eady tr\u01b0\u1edbc khi ch\u1eafc ch\u1eafn r\u1eb1ng HTTPS ho\u1ea1t \u0111\u1ed9ng ho\u00e0n to\u00e0n b\u00ecnh th\u01b0\u1eddng, v\u00ec nh\u1eefng l\u1ed7i c\u1ea5u h\u00ecnh c\u00f3 th\u1ec3 khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 truy c\u1eadp trang web trong th\u1eddi gian d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ki\u1ec3m tra sau khi c\u00e0i \u0111\u1eb7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi tri\u1ec3n khai, h\u00e3y nh\u1edb truy c\u1eadp trang web HTTPS c\u1ee7a b\u1ea1n b\u1eb1ng tr\u00ecnh duy\u1ec7t, ki\u1ec3m tra xem bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a trong thanh \u0111\u1ecba ch\u1ec9 c\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng kh\u00f4ng, v\u00e0 nh\u1ea5p v\u00e0o \u0111\u1ec3 xem th\u00f4ng tin ch\u1ee9ng ch\u1ec9 xem li\u1ec7u ch\u00fang c\u00f3 tr\u00f9ng kh\u1edbp v\u1edbi th\u00f4ng tin c\u1ee7a b\u1ea1n hay kh\u00f4ng. \u0110\u1ed3ng th\u1eddi, ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra SSL tr\u1ef1c tuy\u1ebfn (ch\u1eb3ng h\u1ea1n nh\u01b0 SSL Test c\u1ee7a SSL Labs) \u0111\u1ec3 th\u1ef1c hi\u1ec7n qu\u00e9t \u0111\u00e1nh gi\u00e1 an ninh to\u00e0n di\u1ec7n \u0111\u1ed1i v\u1edbi c\u1ea5u h\u00ecnh c\u1ee7a m\u00ecnh. C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd ch\u1ec9 ra nh\u1eefng \u0111i\u1ec3m y\u1ebfu c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong c\u1ea5u h\u00ecnh, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c giao th\u1ee9c kh\u00f4ng an to\u00e0n ho\u1eb7c b\u1ed9 m\u00e3 h\u00f3a y\u1ebfu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00f3m l\u1ea1i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSL ch\u1ee9ng ch\u1ec9 l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho giao ti\u1ebfp tr\u00ean m\u1ea1ng v\u00e0 x\u00e2y d\u1ef1ng l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. V\u1edbi nhi\u1ec1u lo\u1ea1i ch\u1ee9ng ch\u1ec9 kh\u00e1c nhau \u2013 t\u1eeb lo\u1ea1i DV c\u01a1 b\u1ea3n \u0111\u1ebfn lo\u1ea1i EV c\u00f3 m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt cao, t\u1eeb ch\u1ee9ng ch\u1ec9 d\u00e0nh cho m\u1ed9t t\u00ean mi\u1ec1n \u0111\u01a1n l\u1ebb \u0111\u1ebfn ch\u1ee9ng ch\u1ec9 d\u00f9ng cho nhi\u1ec1u t\u00ean mi\u1ec1n \u2013 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng nhu c\u1ea7u c\u1ee5 th\u1ec3. Quy tr\u00ecnh \u0111\u0103ng k\u00fd \u0111\u00e3 tr\u1edf n\u00ean ng\u00e0y c\u00e0ng \u0111\u01a1n gi\u1ea3n v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a; \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00e1c ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed, vi\u1ec7c tri\u1ec3n khai HTTPS cho trang web \u0111\u00e3 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u. Vi\u1ec7c tri\u1ec3n khai HTTPS th\u00e0nh c\u00f4ng kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 vi\u1ec7c c\u00e0i \u0111\u1eb7t m\u00e0 c\u00f2n \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u1ea5u h\u00ecnh ch\u00fang \u0111\u00fang c\u00e1ch v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc b\u1ea3o tr\u00ec sau \u0111\u00f3, bao g\u1ed3m vi\u1ec7c y\u00eau c\u1ea7u trang web t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n h\u01b0\u1edbng sang giao th\u1ee9c HTTPS, k\u00edch ho\u1ea1t t\u00ednh n\u0103ng HSTS, v\u00e0 gia h\u1ea1n ch\u1ee9ng ch\u1ec9 \u0111\u1ecbnh k\u1ef3. Vi\u1ec7c \u00e1p d\u1ee5ng HTTPS kh\u00f4ng ch\u1ec9 l\u00e0 h\u00e0nh \u0111\u1ed9ng theo xu h\u01b0\u1edbng c\u00f4ng ngh\u1ec7 m\u00e0 c\u00f2n th\u1ec3 hi\u1ec7n th\u00e1i \u0111\u1ed9 c\u00f3 tr\u00e1ch nhi\u1ec7m \u0111\u1ed1i v\u1edbi an to\u00e0n ng\u01b0\u1eddi d\u00f9ng v\u00e0 uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a doanh nghi\u1ec7p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 SSL v\u00e0 ch\u1ee9ng ch\u1ec9 TLS c\u00f3 gi\u1ed1ng nhau kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 b\u1ea3n ch\u1ea5t, c\u1ea3 hai \u0111\u1ec1u l\u00e0 nh\u1eefng c\u00f4ng ngh\u1ec7 li\u00ean quan \u0111\u1ebfn vi\u1ec7c b\u1ea3o m\u1eadt th\u00f4ng tin tr\u00ean m\u1ea1ng. SSL (Secure Sockets Layer) l\u00e0 phi\u00ean b\u1ea3n giao th\u1ee9c c\u0169 h\u01a1n, \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi TLS (Transport Layer Security) \u2013 phi\u00ean b\u1ea3n m\u1edbi h\u01a1n v\u00e0 an to\u00e0n h\u01a1n. Tuy nhi\u00ean, do th\u00f3i quen l\u1ecbch s\u1eed, thu\u1eadt ng\u1eef \u201cch\u1ee9ng ch\u1ec9 SSL\u201d v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. V\u00ec v\u1eady, nh\u1eefng ch\u1ee9ng ch\u1ec9 SSL \u0111\u01b0\u1ee3c b\u00e1n tr\u00ean th\u1ecb tr\u01b0\u1eddng hi\u1ec7n nay th\u1ef1c ch\u1ea5t \u0111\u1ec1u h\u1ed7 tr\u1ee3 giao th\u1ee9c TLS.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed v\u00e0 tr\u1ea3 ph\u00ed kh\u00e1c nhau th\u1ebf n\u00e0o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u9a8c\u8bc1\u7ea7\u522b\u3001\u529f\u80fd\u3001\u4fdd\u969c\u548c\u670d\u52a1\u3002\u514d\u8d39\u8bc1\u4e66\uff08\u5982Let\u2018s Encrypt\uff09\u901a\u5e38\u662fDV\u8bc1\u4e66\uff0c\u4ec5\u9a8c\u8bc1\u57df\u540d\u6240\u6709\u6743\uff0c\u9002\u5408\u4e2a\u4eba\u6216\u975e\u5546\u4e1a\u9879\u76ee\u3002\u4ed8\u8d39\u8bc1\u4e66\u63d0\u4f9bOV\u3001EV\u7b49\u66f4\u9ad8\u7ea7\u522b\u7684\u9a8c\u8bc1\uff0c\u80fd\u5c55\u793a\u516c\u53f8\u4fe1\u606f\uff0c\u63d0\u5347\u4fe1\u4efb\u5ea6\uff1b\u901a\u5e38\u63d0\u4f9b\u66f4\u9ad8\u7684\u4fdd\u4fee\u91d1\u989d\uff08\u5982\u767e\u4e07\u7f8e\u5143\u7ea7\u4fdd\u969c\uff09\uff0c\u5728\u8bc1\u4e66\u88ab\u76d7\u6216\u8bef\u7b7e\u53d1\u5bfc\u81f4\u635f\u5931\u65f6\u63d0\u4f9b\u8d54\u507f\uff1b\u5e76\u4e14\u62e5\u6709\u4e13\u4e1a\u7684\u6280\u672f\u652f\u6301\u670d\u52a1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sau khi gi\u1ea5y t\u1edd ch\u1ee9ng nh\u1eadn \u0111\u01b0\u1ee3c tri\u1ec3n khai, t\u1ea1i sao tr\u00ecnh duy\u1ec7t v\u1eabn hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o \u201ckh\u00f4ng an to\u00e0n\u201d?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 nhi\u1ec1u nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 x\u1ea3y ra: 1. Trang web c\u00f3 t\u1ea3i t\u00e0i nguy\u00ean theo giao th\u1ee9c HTTP (nh\u01b0 h\u00ecnh \u1ea3nh, t\u1ec7p JS, CSS), c\u1ea7n chuy\u1ec3n t\u1ea5t c\u1ea3 c\u00e1c li\u00ean k\u1ebft t\u00e0i nguy\u00ean sang HTTPS. 2. Chu\u1ed7i ch\u1ee9ng ch\u1ec9 kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7, m\u00e1y ch\u1ee7 ch\u01b0a c\u1ea5u h\u00ecnh ch\u1ee9ng ch\u1ec9 trung gian \u0111\u00fang c\u00e1ch. 3. T\u00ean mi\u1ec1n c\u1ee7a ch\u1ee9ng ch\u1ec9 kh\u00f4ng kh\u1edbp v\u1edbi t\u00ean mi\u1ec1n \u0111ang truy c\u1eadp. 4. Ch\u1ee9ng ch\u1ec9 \u0111\u00e3 h\u1ebft h\u1ea1n. C\u1ea7n ki\u1ec3m tra d\u1ef1a tr\u00ean th\u00f4ng tin l\u1ed7i c\u1ee5 th\u1ec3 do tr\u00ecnh duy\u1ec7t cung c\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SSL ch\u1ee9ng ch\u1ec9 c\u1ea7n \u0111\u01b0\u1ee3c gia h\u1ea1n m\u1ed7i bao l\u00e2u m\u1ed9t l\u1ea7n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u524d\uff0c\u4e3b\u6d41CA\u7b7e\u53d1\u7684SSL\u8bc1\u4e66\u6700\u957f\u6709\u6548\u671f\u4e3a398\u5929\uff08\u7ea613\u4e2a\u6708\uff09\uff0c\u8fd9\u662f\u884c\u4e1a\u6807\u51c6\u59d4\u5458\u4f1a\u5f3a\u5236\u89c4\u5b9a\u7684\u3002\u514d\u8d39\u8bc1\u4e66\u5982Let\u2018s Encrypt\u6709\u6548\u671f\u66f4\u77ed\uff0c\u4e3a90\u5929\u3002\u56e0\u6b64\uff0c\u60a8\u9700\u8981\u5b9a\u671f\u5728\u8bc1\u4e66\u8fc7\u671f\u524d\u8fdb\u884c\u7eed\u671f\u64cd\u4f5c\uff0c\u5426\u5219\u8fc7\u671f\u540e\u7f51\u7ad9\u8bbf\u95ee\u5c06\u56e0\u5b89\u5168\u8b66\u544a\u800c\u4e2d\u65ad\u3002\u5efa\u8bae\u8bbe\u7f6e\u81ea\u52a8\u7eed\u671f\u6216\u63d0\u524d\u7eed\u671f\u63d0\u9192\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1ed9t ch\u1ee9ng ch\u1ec9 SSL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u m\u00e1y ch\u1ee7 kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c, nh\u01b0ng c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn c\u00e1ch th\u1ee9c th\u1ef1c hi\u1ec7n. N\u1ebfu b\u1ea1n c\u00f3 nhi\u1ec1u m\u00e1y ch\u1ee7 cung c\u1ea5p c\u00f9ng m\u1ed9t d\u1ecbch v\u1ee5 (ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t cluster load balancing), b\u1ea1n c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00f9ng m\u1ed9t ch\u1ee9ng ch\u1ec9 v\u00e0 kh\u00f3a ri\u00eang l\u00ean m\u1ed7i m\u00e1y ch\u1ee7. M\u1ed9t gi\u1ea3i ph\u00e1p t\u1ed1t h\u01a1n n\u1eefa l\u00e0 s\u1eed d\u1ee5ng lo\u1ea1i ch\u1ee9ng ch\u1ec9 h\u1ed7 tr\u1ee3 tri\u1ec3n khai tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7 (v\u00ed d\u1ee5: m\u1ed9t s\u1ed1 ch\u1ee9ng ch\u1ec9 cho ph\u00e9p ch\u1ec9 \u0111\u1ecbnh nhi\u1ec1u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7), ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 chuy\u00ean d\u1ee5ng \u0111\u1ec3 ph\u00e2n ph\u1ed1i v\u00e0 tri\u1ec3n khai ch\u00fang. \u0110i\u1ec1u quan tr\u1ecdng nh\u1ea5t l\u00e0 vi\u1ec7c qu\u1ea3n l\u00fd kh\u00f3a ri\u00eang ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch an to\u00e0n.<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u1ec1 vai tr\u00f2 c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL trong vi\u1ec7c m\u00e3 h\u00f3a d\u1eef li\u1ec7u, x\u00e1c th\u1ef1c danh t\u00ednh v\u00e0 n\u00e2ng cao th\u1ee9 h\u1ea1ng trang web tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. B\u00e0i vi\u1ebft so s\u00e1nh chi ti\u1ebft c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 nh\u01b0 DV, OV, EV v\u00e0 ch\u1ee9ng ch\u1ec9 d\u00e0nh cho nhi\u1ec1u t\u00ean mi\u1ec1n, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p h\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 t\u1eeb vi\u1ec7c t\u1ea1o CSR (Certificate Signing Request) \u0111\u1ebfn khi ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c, bao g\u1ed3m c\u1ea3 th\u00f4ng tin v\u1ec1 vi\u1ec7c l\u1ef1a ch\u1ecdn ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[326,11,416,319,338],"knowledge_category":[277],"class_list":["post-12374418","knowledge_post","type-knowledge_post","status-publish","hentry","tag-https-guide","tag-ssl-certificate","tag-encrypted-transmission","tag-website-security","tag-cybersecurity","knowledge_category-ssl-certificate"],"acf":{"site_seo_keywords":"SSL\u8bc1\u4e66,HTTPS\u52a0\u5bc6,SSL\u8bc1\u4e66\u7533\u8bf7,SSL\u8bc1\u4e66\u7c7b\u578b,SSL\u90e8\u7f72\u6559\u7a0b,\u7f51\u7ad9\u5b89\u5168\u8bc1\u4e66,\u901a\u914d\u7b26SSL\u8bc1\u4e66"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12374418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts"}],"about":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/types\/knowledge_post"}],"author":[{"embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":0,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12374418\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12374418"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12374418"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12374418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}