{"id":12359897,"date":"2026-03-11T00:04:51","date_gmt":"2026-03-10T16:04:51","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/ssl%e8%af%81%e4%b9%a6%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f%e5%85%a5%e9%97%a8%e6%8c%87%e5%8d%97%e4%b8%8e%e6%9c%80%e6%96%b0%e9%83%a8%e7%bd%b2%e9%aa%8c%e8%af%81%e5%85%a8%e6%b5%81%e7%a8%8b%e8%a7%a3\/"},"modified":"2026-03-11T02:31:14","modified_gmt":"2026-03-10T18:31:14","slug":"ssl-certificate-guide-deployment-verification-process","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-guide-deployment-verification-process\/","title":{"rendered":"SSL (Secure Sockets Layer) l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn c\u01a1 b\u1ea3n v\u00e0 ph\u00e2n t\u00edch to\u00e0n b\u1ed9 quy tr\u00ecnh x\u00e1c th\u1ef1c tri\u1ec3n khai m\u1edbi nh\u1ea5t"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng internet ng\u00e0y nay, b\u1ea3o m\u1eadt trang web l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n \u0111\u1ec3 x\u00e2y d\u1ef1ng l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Khi b\u1ea1n truy c\u1eadp m\u1ed9t trang web, bi\u1ec3u t\u01b0\u1ee3ng h\u00ecnh \u201ckh\u00f3a\u201d xu\u1ea5t hi\u1ec7n trong thanh \u0111\u1ecba ch\u1ec9 c\u1ee7a tr\u00ecnh duy\u1ec7t ch\u00ednh l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y ch\u1ee9ng ch\u1ec9 SSL \u0111ang ho\u1ea1t \u0111\u1ed9ng. Bi\u1ec3u t\u01b0\u1ee3ng n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0 bi\u1ec3u t\u01b0\u1ee3ng c\u1ee7a s\u1ef1 an to\u00e0n cho trang web m\u00e0 c\u00f2n l\u00e0 th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu trong giao ti\u1ebfp m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u kh\u00f4ng b\u1ecb \u0111\u00e1nh c\u1eafp ho\u1eb7c s\u1eeda \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL l\u00e0 kh\u1edfi \u0111\u1ed9ng giao th\u1ee9c HTTPS. N\u00f3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m nh\u01b0 th\u00f4ng tin \u0111\u0103ng nh\u1eadp, th\u00f4ng tin th\u1ebb t\u00edn d\u1ee5ng, v\u00e0 d\u1eef li\u1ec7u c\u00e1 nh\u00e2n b\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp m\u1ed9t k\u00eanh truy\u1ec1n th\u00f4ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a gi\u1eefa m\u00e1y kh\u00e1ch (ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u00ecnh duy\u1ec7t) v\u00e0 m\u00e1y ch\u1ee7. N\u1ebfu kh\u00f4ng c\u00f3 l\u1edbp m\u00e3 h\u00f3a n\u00e0y, d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n qua m\u1ea1ng d\u01b0\u1edbi d\u1ea1ng kh\u00f4ng m\u00e3 h\u00f3a, v\u00e0 r\u1ea5t d\u1ec5 b\u1ecb c\u00e1c b\u00ean th\u1ee9 ba ch\u1eb7n v\u00e0 \u0111\u00e1nh c\u1eafp.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 hi\u1ec3u r\u00f5 v\u1ec1 ch\u1ee9ng ch\u1ec9 SSL, tr\u01b0\u1edbc h\u1ebft c\u1ea7n n\u1eafm b\u1eaft m\u1ed9t s\u1ed1 kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng ph\u1ed1i h\u1ee3p v\u1edbi nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng v\u00e0 m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Giao th\u1ee9c SSL\/TLS k\u1ebft h\u1ee3p m\u1ed9t c\u00e1ch th\u00f4ng minh hai ph\u01b0\u01a1ng th\u1ee9c m\u00e3 h\u00f3a kh\u00e1c nhau. Trong giai \u0111o\u1ea1n \u201cgiao ti\u1ebfp ban \u0111\u1ea7u\u201d (handshake) khi k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, ph\u01b0\u01a1ng th\u1ee9c m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng (nh\u01b0 RSA, ECC) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. M\u00e1y ch\u1ee7 n\u1eafm gi\u1eef kh\u00f3a ri\u00eang, trong khi kh\u00f3a c\u00f4ng t\u01b0\u01a1ng \u1ee9ng \u0111\u01b0\u1ee3c ch\u1ee9a trong ch\u1ee9ng ch\u1ec9 SSL. Tr\u00ecnh duy\u1ec7t s\u1eed d\u1ee5ng kh\u00f3a c\u00f4ng trong ch\u1ee9ng ch\u1ec9 \u0111\u1ec3 m\u00e3 h\u00f3a m\u1ed9t \u201ckh\u00f3a cu\u1ed9c tr\u00f2 chuy\u1ec7n\u201d (session key) \u0111\u01b0\u1ee3c t\u1ea1o ra m\u1ed9t c\u00e1ch ng\u1eabu nhi\u00ean; ch\u1ec9 m\u00e1y ch\u1ee7 n\u1eafm gi\u1eef kh\u00f3a ri\u00eang m\u1edbi c\u00f3 th\u1ec3 gi\u1ea3i m\u00e3 kh\u00f3a \u0111\u00f3. Sau \u0111\u00f3, c\u1ea3 hai b\u00ean s\u1eed d\u1ee5ng \u201ckh\u00f3a cu\u1ed9c tr\u00f2 chuy\u1ec7n\u201d n\u00e0y \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c trao \u0111\u1ed5i th\u00f4ng tin b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng, t\u1eeb \u0111\u00f3 \u0111\u1ea3m b\u1ea3o s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa t\u00ednh b\u1ea3o m\u1eadt v\u00e0 hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ed1 ch\u1ee9ng ch\u1ec9 v\u00e0 t\u1ed5 ch\u1ee9c CA (Certificate Authority)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SSL ch\u1ee9ng ch\u1ec9 th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t t\u1ec7p tin s\u1ed1, ch\u1ee9a th\u00f4ng tin kh\u00f3a c\u00f4ng c\u1ed9ng c\u1ee7a trang web c\u00f9ng c\u00e1c d\u1eef li\u1ec7u x\u00e1c th\u1ef1c danh t\u00ednh c\u1ee7a trang web \u0111\u00f3 (nh\u01b0 t\u00ean mi\u1ec1n, t\u00ean c\u00f4ng ty). \u0110\u1ed9 tin c\u1eady c\u1ee7a SSL ch\u1ee9ng ch\u1ec9 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ea3n th\u00e2n n\u00f3, m\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (Certificate Authority \u2013 CA) \u0111\u00e3 ph\u00e1t h\u00e0nh n\u00f3. C\u00e1c tr\u00ecnh duy\u1ec7t v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111\u1ec1u \u0111\u01b0\u1ee3c trang b\u1ecb s\u1eb5n danh s\u00e1ch c\u00e1c t\u1ed5 ch\u1ee9c CA \u0111\u01b0\u1ee3c tin c\u1eady. Khi nh\u1eadn \u0111\u01b0\u1ee3c SSL ch\u1ee9ng ch\u1ec9, tr\u00ecnh duy\u1ec7t s\u1ebd ki\u1ec3m tra xem n\u00f3 c\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh b\u1edfi m\u1ed9t t\u1ed5 ch\u1ee9c CA \u0111\u00e1ng tin c\u1eady hay kh\u00f4ng, li\u1ec7u ch\u1ee9ng ch\u1ec9 c\u00f2n h\u1ee3p l\u1ec7 trong th\u1eddi h\u1ea1n hay kh\u00f4ng, v\u00e0 xem t\u00ean mi\u1ec1n c\u00f3 tr\u00f9ng kh\u1edbp v\u1edbi th\u00f4ng tin tr\u00ean ch\u1ee9ng ch\u1ec9 hay kh\u00f4ng. Mekanism n\u00e0y t\u1ea1o n\u00ean n\u1ec1n t\u1ea3ng cho to\u00e0n b\u1ed9 chu\u1ed7i tin c\u1eady tr\u00ean m\u1ea1ng.<\/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\">T\u00f3m t\u1eaft quy tr\u00ecnh giao ti\u1ebfp TLS (Transport Layer Security)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t quy tr\u00ecnh giao ti\u1ebfp TLS \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau: Kh\u00e1ch h\u00e0ng g\u1eedi y\u00eau c\u1ea7u \u201cClientHello\u201d, m\u00e1y ch\u1ee7 tr\u1ea3 l\u1eddi b\u1eb1ng y\u00eau c\u1ea7u \u201cServerHello\u201d k\u00e8m theo ch\u1ee9ng ch\u1ec9 c\u1ee7a m\u00ecnh, kh\u00e1ch h\u00e0ng x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 \u0111\u00f3 v\u00e0 t\u1ea1o ra kh\u00f3a phi\u00ean (session key), sau \u0111\u00f3 c\u1ea3 hai b\u00ean trao \u0111\u1ed5i th\u00f4ng tin \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u1ec3 x\u00e1c nh\u1eadn kh\u00f3a. Cu\u1ed1i c\u00f9ng, k\u00eanh truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, v\u00e0 to\u00e0n b\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i sau n\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi qu\u00e1 tr\u00ecnh m\u00e3 h\u00f3a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL ch\u00ednh v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c v\u00e0 y\u00eau c\u1ea7u v\u1ec1 ch\u1ee9c n\u0103ng, ch\u1ee9ng ch\u1ec9 SSL ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i sau \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u b\u1ea3o m\u1eadt kh\u00e1c nhau trong c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-explained-https-encryption-principles-practice\/\">SSL ch\u1ee9ng ch\u1ec9 l\u00e0 g\u00ec? T\u1eeb nguy\u00ean l\u00fd \u0111\u1ebfn th\u1ef1c ti\u1ec5n, m\u1ed9t b\u00e0i vi\u1ebft hi\u1ec3u r\u00f5 c\u1ed1t l\u00f5i m\u00e3 h\u00f3a 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 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 \u0111\u01b0\u1ee3c c\u1ea5p v\u1edbi t\u1ed1c \u0111\u1ed9 nhanh nh\u1ea5t v\u00e0 chi ph\u00ed th\u1ea5p nh\u1ea5t. C\u01a1 quan ch\u1ee9ng nh\u1eadn (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\u00f4ng th\u01b0\u1eddng b\u1eb1ng c\u00e1ch x\u00e1c minh c\u00e1c b\u1ea3n ghi gi\u1ea3i quy\u1ebft t\u00ean mi\u1ec1n ho\u1eb7c c\u00e1c t\u1ec7p \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh). N\u00f3 cung c\u1ea5p ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a c\u01a1 b\u1ea3n cho trang web v\u00e0 hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a trong thanh \u0111\u1ecba ch\u1ec9. DV ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p cho c\u00e1c trang web c\u00e1 nh\u00e2n, blog ho\u1eb7c m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m.<\/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, d\u1ef1a tr\u00ean quy tr\u00ecnh x\u00e1c th\u1ef1c DV (Domain Validation), c\u00f2n b\u1ed5 sung th\u00eam c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra nghi\u00eam ng\u1eb7t nh\u1eb1m x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a t\u1ed5 ch\u1ee9c n\u1ed9p \u0111\u01a1n (ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00f4ng ty, c\u01a1 quan ch\u00ednh ph\u1ee7). C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authority) s\u1ebd ki\u1ec3m tra th\u00f4ng tin \u0111\u0103ng k\u00fd kinh doanh c\u1ee7a doanh nghi\u1ec7p. Th\u00f4ng tin chi ti\u1ebft v\u1ec1 ch\u1ee9ng ch\u1ec9 s\u1ebd bao g\u1ed3m t\u00ean c\u1ee7a t\u1ed5 ch\u1ee9c \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh, gi\u00fap ng\u01b0\u1eddi d\u00f9ng hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u0111\u01a1n v\u1ecb \u0111\u1ee9ng sau trang web v\u00e0 t\u1eeb \u0111\u00f3 t\u0103ng c\u01b0\u1eddng s\u1ef1 tin t\u01b0\u1edfng trong m\u00f4i tr\u01b0\u1eddng kinh doanh. OV ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p cho c\u00e1c trang web ch\u00ednh th\u1ee9c c\u1ee7a doanh nghi\u1ec7<\/p>\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 c\u00f3 m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c ch\u1eb7t ch\u1ebd nh\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ea3o m\u1eadt cao nh\u1ea5t. Ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n c\u1ea7n ph\u1ea3i tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m tra danh t\u00ednh doanh nghi\u1ec7p to\u00e0n di\u1ec7n nh\u1ea5t. Trang web s\u1edf h\u1eefu ch\u1ee9ng ch\u1ec9 EV s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb t\u00ean c\u00f4ng ty b\u1eb1ng m\u00e0u xanh l\u00e1 c\u00e2y ngay trong thanh \u0111\u1ecba ch\u1ec9 tr\u00ean h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t, \u0111\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u th\u1ec3 hi\u1ec7n m\u1ee9c \u0111\u1ed9 tin c\u1eady cao nh\u1ea5t. Lo\u1ea1i ch\u1ee9ng ch\u1ec9 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c t\u1ed5 ch\u1ee9c t\u00e0i ch\u00ednh, c\u00e1c c\u00f4ng ty th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed l\u1edbn v\u00e0 c\u00e1c doanh nghi\u1ec7p n\u1ed5i ti\u1ebfng s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, d\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, c\u00f3 c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 nh\u01b0: ch\u1ee9ng ch\u1ec9 cho m\u1ed9t t\u00ean mi\u1ec1n duy nh\u1ea5t, ch\u1ee9ng ch\u1ec9 cho nhi\u1ec1u t\u00ean mi\u1ec1n, v\u00e0 ch\u1ee9ng ch\u1ec9 s\u1eed d\u1ee5ng k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n (%). Lo\u1ea1i ch\u1ee9ng ch\u1ec9 cu\u1ed1i c\u00f9ng 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\u1ea5<\/p>\n\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh ho\u00e0n ch\u1ec9nh \u0111\u1ec3 thu th\u1eadp v\u00e0 tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb khi n\u1ed9p \u0111\u01a1n \u0111\u1ebfn khi HTTPS \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t th\u00e0nh c\u00f4ng, c\u1ea7n ph\u1ea3i tr\u1ea3i qua m\u1ed9t lo\u1ea1t c\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3 v\u00e0 r\u00f5 r\u00e0ng.<\/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\u01b0\u1edbc ti\u00ean, b\u1ea1n c\u1ea7n 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 CSR (Certificate Signing Request) tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a m\u00ecnh. T\u1ec7p CSR ch\u1ee9a kh\u00f3a c\u00f4ng c\u1ee7a b\u1ea1n v\u00e0 th\u00f4ng tin v\u1ec1 t\u1ed5 ch\u1ee9c m\u00e0 b\u1ea1n mu\u1ed1n xin c\u1ea5p ch\u1ee9ng ch\u1ec9. Kh\u00f3a ri\u00eang ph\u1ea3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef m\u1ed9t c\u00e1ch b\u1ea3o m\u1eadt tr\u00ean m\u00e1y ch\u1ee7, trong khi t\u1ec7p CSR c\u1ea7n \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authority). Vi\u1ec7c n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n d\u1ec5 d\u00e0ng b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 OpenSSL.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc th\u1ee9 hai: N\u1ed9p \u0111\u01a1n x\u00e1c th\u1ef1c v\u00e0 y\u00eau c\u1ea7u c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y g\u1eedi y\u00eau c\u1ea7u x\u00e1c th\u1ef1c danh t\u00ednh (CSR \u2013 Certificate Signing Request) \u0111\u1ebfn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 ch\u1ee9ng ch\u1ec9 s\u1ed1 (CA \u2013 Certificate Authority) m\u00e0 b\u1ea1n \u0111\u00e3 ch\u1ecdn. T\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i ch\u1ee9ng ch\u1ec9 m\u00e0 b\u1ea1n y\u00eau c\u1ea7u (DV, OV, EV), nh\u00e0 cung c\u1ea5p CA s\u1ebd th\u1ef1c hi\u1ec7n quy tr\u00ecnh x\u00e1c th\u1ef1c t\u01b0\u01a1ng \u1ee9ng. \u0110\u1ed1i v\u1edbi ch\u1ee9ng ch\u1ec9 DV, qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c ho\u00e0n t\u1ea5t t\u1ef1 \u0111\u1ed9ng trong v\u00e0i ph\u00fat; trong khi \u0111\u00f3, ch\u1ee9ng ch\u1ec9 OV v\u00e0 EV c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t b\u1edfi nh\u00e2n vi\u00ean v\u00e0 ki\u1ec3m tra c\u00e1c t\u00e0i li\u1ec7u li\u00ean quan, c\u00f3 th\u1ec3 m\u1ea5t v\u00e0i ng\u00e0y. Sau khi qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c \u0111\u01b0\u1ee3c th\u00f4ng qua, nh\u00e0 cung c\u1ea5p CA s\u1ebd c\u1ea5p t\u00e0i li\u1ec7u ch\u1ee9ng ch\u1ec9 SSL (th\u01b0\u1eddng \u1edf \u0111\u1ecbnh d\u1ea1ng.crt ho\u1eb7c.pem) v\u00e0 g\u1eedi n\u00f3 cho b\u1ea1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc ba: C\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 tr\u00ean m\u00e1y ch\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y tri\u1ec3n khai t\u1ec7p ch\u1ee9ng ch\u1ec9 do CA c\u1ea5p c\u00f9ng v\u1edbi t\u1ec7p kh\u00f3a ri\u00eang m\u00e0 b\u1ea1n \u0111\u00e3 t\u1ea1o \u1edf b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean v\u00e0o ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 Web. C\u00e1c c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 ph\u1ed5 bi\u1ebfn nh\u01b0 sau:<br \/>\n\u2013 Apache: B\u1ea1n c\u1ea7n ch\u1ec9 \u0111\u1ecbnh \u0111\u01b0\u1eddng d\u1eabn cho t\u1ec7p ch\u1ee9ng ch\u1ec9 (`SSLCertificateFile`) v\u00e0 t\u1ec7p kh\u00f3a ri\u00eang (`SSLCertificateKeyFile`) trong t\u1eadp tin c\u1ea5u h\u00ecnh.<br \/>\nNginx: C\u1ea7n s\u1eed d\u1ee5ng ch\u1ec9 th\u1ecb `ssl_certificate` trong file c\u1ea5u h\u00ecnh \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh \u0111\u01b0\u1eddng d\u1eabn file ch\u1ee9ng ch\u1ec9, v\u00e0 `ssl_certificate_key` \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh \u0111\u01b0\u1eddng d\u1eabn file kh\u00f3a ri\u00eang t\u01b0.<br \/>\n\u2013 C\u00e1c n\u1ec1n t\u1ea3ng d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y: Nh\u01b0 Alibaba Cloud, Tencent Cloud, v.v., th\u01b0\u1eddng cung c\u1ea5p t\u00ednh n\u0103ng t\u1ea3i l\u00ean v\u00e0 tri\u1ec3n khai ch\u1ec9 b\u1eb1ng m\u1ed9t c\u00fa nh\u1ea5p tr\u00ean giao di\u1ec7n \u0111i\u1ec1u khi\u1ec3n, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh thao t\u00e1c.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-guide-how-it-works-website-security-deployment\/\">SSL (Secure Sockets Layer) l\u00e0 g\u00ec: Ph\u00e2n t\u00edch to\u00e0n di\u1ec7n v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 h\u01b0\u1edbng d\u1eabn tri\u1ec3n khai b\u1ea3o m\u1eadt cho trang web<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi c\u00e0i \u0111\u1eb7t xong, h\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y ch\u1ee7 \u0111\u1ec3 c\u00e1c thi\u1ebft l\u1eadp c\u00f3 hi\u1ec7u l\u1ef1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc b\u1ed1n: B\u1eaft bu\u1ed9c HTTPS v\u00e0 kh\u1eafc ph\u1ee5c n\u1ed9i dung h\u1ed7n h\u1ee3p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9, b\u1ea1n c\u1ea7n c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u HTTP sang HTTPS, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ng\u01b0\u1eddi d\u00f9ng lu\u00f4n truy c\u1eadp v\u00e0o trang web th\u00f4ng qua k\u1ebft n\u1ed1i an to\u00e0n. \u0110\u1ed3ng th\u1eddi, b\u1ea1n c\u0169ng c\u1ea7n ki\u1ec3m tra c\u00e1c trang web \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c t\u00e0i nguy\u00ean con (nh\u01b0 h\u00ecnh \u1ea3nh, script, b\u1ea3ng \u0111\u1ecbnh d\u1ea1ng) \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u1ea3i th\u00f4ng qua c\u00e1c li\u00ean k\u1ebft HTTPS, nh\u1eb1m tr\u00e1nh c\u1ea3nh b\u00e1o v\u1ec1 \u201cn\u1ed9i dung h\u1ed7n h\u1ee3p\u201d (mixed content). Nh\u1eefng c\u1ea3nh b\u00e1o n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ea3o tr\u00ec, c\u1eadp nh\u1eadt v\u00e0 th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t (Maintenance, Updates, and Best Practices)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1ea7n duy nh\u1ea5t l\u00e0 xong; vi\u1ec7c b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1ea1n s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 v\u00e0 vi\u1ec7c t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n nay, th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng t\u1ed1i \u0111a c\u1ee7a c\u00e1c ch\u1ee9ng ch\u1ec9 SSL do c\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA) h\u00e0ng \u0111\u1ea7u c\u1ea5p l\u00e0 398 ng\u00e0y. Khi ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n, trang web s\u1ebd kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c v\u00e0 s\u1ebd xu\u1ea5t hi\u1ec7n c\u1ea3nh b\u00e1o b\u1ea3o m\u1eadt nghi\u00eam tr\u1ecdng tr\u00ean tr\u00ecnh duy\u1ec7t. B\u1ea1n c\u1ea7n ho\u00e0n t\u1ea5t vi\u1ec7c gia h\u1ea1n v\u00e0 c\u00e0i \u0111\u1eb7t l\u1ea1i ch\u1ee9ng ch\u1ec9 tr\u01b0\u1edbc khi n\u00f3 h\u1ebft h\u1ea1n. Ch\u00fang t\u00f4i khuy\u00ean m\u1ea1nh m\u1ebd b\u1ea1n n\u00ean b\u1eadt t\u00ednh n\u0103ng t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n ch\u1ee9ng ch\u1ec9 ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t \u0111\u1ec3 nh\u1eadn th\u00f4ng b\u00e1o khi ch\u1ee9ng ch\u1ec9 s\u1eafp h\u1ebft h\u1ea1n, nh\u1eb1m tr\u00e1nh gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c hi\u1ec7n \u0111\u1ea1i v\u00e0 b\u1ed9 c\u00f4ng c\u1ee5 m\u00e3 h\u00f3a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u0111\u00e3 v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c phi\u00ean b\u1ea3n giao th\u1ee9c c\u0169 v\u00e0 kh\u00f4ng an to\u00e0n (ch\u1eb3ng h\u1ea1n nh\u01b0 SSL 2.0\/3.0) c\u0169ng nh\u01b0 c\u00e1c b\u1ed9 m\u00e3 h\u00f3a y\u1ebfu. N\u00ean \u01b0u ti\u00ean s\u1eed d\u1ee5ng c\u00e1c phi\u00ean b\u1ea3n TLS 1.2 v\u00e0 TLS 1.3, \u0111\u1ed3ng th\u1eddi ch\u1ecdn c\u00e1c b\u1ed9 m\u00e3 h\u00f3a c\u00f3 t\u00ednh n\u0103ng b\u1ea3o m\u1eadt cao (nh\u01b0 c\u00e1c b\u1ed9 m\u00e3 h\u00f3a c\u00f3 ch\u1ee9c n\u0103ng forward secrecy). B\u1ea1n c\u00f3 th\u1ec3 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 Labs\u2019 SSL Test) \u0111\u1ec3 qu\u00e9t v\u00e0 \u0111\u00e1nh gi\u00e1 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 c\u1ee7a m\u00ecnh, sau \u0111\u00f3 t\u1ed1i \u01b0u h\u00f3a n\u00f3 theo c\u00e1c khuy\u1ebfn ngh\u1ecb nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-guide-types-installation-optimization\/\">H\u01b0\u1edbng d\u1eabn t\u1ed1i th\u01b0\u1ee3ng v\u1ec1 ch\u1ee9ng ch\u1ec9 SSL: Quy tr\u00ecnh \u0111\u1ea7y \u0111\u1ee7 t\u1eeb l\u1ef1a ch\u1ecdn lo\u1ea1i \u0111\u1ebfn t\u1ed1i \u01b0u h\u00f3a c\u00e0i \u0111\u1eb7t<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">Vi\u1ec7c tri\u1ec3n khai ch\u00ednh s\u00e1ch HSTS (HTTP Strict Security Transport)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP Strict Transport Security (HTTS) l\u00e0 m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt quan tr\u1ecdng. B\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp thu\u1ed9c t\u00ednh `Strict-Transport-Security` trong ph\u1ea7n ti\u00eau \u0111\u1ec1 ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7, tr\u00ecnh duy\u1ec7t s\u1ebd \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u ch\u1ec9 truy c\u1eadp trang web \u0111\u00f3 qua giao th\u1ee9c HTTPS trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, ngay c\u1ea3 khi ng\u01b0\u1eddi d\u00f9ng t\u1ef1 nh\u1eadp \u0111\u1ecba ch\u1ec9 HTTP. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u1eb1m l\u00e0m gi\u1ea3m m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt (downgrade attacks) v\u00e0 vi\u1ec7c chi\u1ebfm \u0111o\u1ea1t th\u00f4ng tin t\u1eeb cookie (cookie hijacking), t\u1eeb \u0111\u00f3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 m\u1ee9c \u0111\u1ed9 an to\u00e0n c\u1ee7a trang web.<\/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 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c m\u00e3 h\u00f3a an to\u00e0n cho c\u00e1c cu\u1ed9c giao ti\u1ebfp tr\u00ean m\u1ea1ng; n\u00f3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u b\u1eb1ng giao th\u1ee9c HTTPS, gi\u1ed1ng nh\u01b0 vi\u1ec7c \u201ctrang b\u1ecb \u00e1o gi\u00e1p ch\u1ed1ng \u0111\u1ea1n\u201d cho ch\u00fang. T\u1eeb vi\u1ec7c hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd m\u00e3 h\u00f3a, l\u1ef1a ch\u1ecdn lo\u1ea1i ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p theo nhu c\u1ea7u, cho \u0111\u1ebfn qu\u00e1 tr\u00ecnh n\u1ed9p \u0111\u01a1n, x\u00e1c th\u1ef1c, tri\u1ec3n khai v\u00e0 b\u1ea3o tr\u00ec sau \u0111\u00f3, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u00ednh b\u1ea3o m\u1eadt v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a trang web. Ng\u00e0y nay, n\u0103m 2026, vi\u1ec7c tri\u1ec3n khai SSL ch\u1ee9ng ch\u1ec9 kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t t\u00f9y ch\u1ecdn n\u1eefa, m\u00e0 \u0111\u00e3 tr\u1edf th\u00e0nh y\u00eau c\u1ea7u ti\u00eau chu\u1ea9n v\u00e0 tr\u00e1ch nhi\u1ec7m c\u01a1 b\u1ea3n \u0111\u1ed1i v\u1edbi m\u1ecdi d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn. Ch\u1ec9 b\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u00e0 th\u01b0\u1eddng xuy\u00ean b\u1ea3o tr\u00ec, c\u1eadp nh\u1eadt ch\u1ee9ng ch\u1ec9, ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 cung c\u1ea5p cho ng\u01b0\u1eddi d\u00f9ng m\u1ed9t m\u00f4i tr\u01b0\u1eddng tr\u1ef1c tuy\u1ebfn th\u1ef1c s\u1ef1 an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/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 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\">\u514d\u8d39\u8bc1\u4e66\uff08\u5982Let\u2018s Encrypt\u7b7e\u53d1\uff09\u901a\u5e38\u662fDV\u7c7b\u578b\uff0c\u63d0\u4f9b\u4e86\u4e0e\u4ed8\u8d39DV\u8bc1\u4e66\u76f8\u540c\u5f3a\u5ea6\u7684\u52a0\u5bc6\u529f\u80fd\uff0c\u975e\u5e38\u9002\u5408\u4e2a\u4eba\u9879\u76ee\u6216\u9884\u7b97\u6709\u9650\u7684\u573a\u666f\u3002\u5176\u4e3b\u8981\u9650\u5236\u5728\u4e8e\u6709\u6548\u671f\u8f83\u77ed\uff08\u901a\u5e3890\u5929\uff09\uff0c\u9700\u8981\u9891\u7e41\u81ea\u52a8\u7eed\u8ba2\uff0c\u4e14\u4e00\u822c\u4e0d\u542b\u6280\u672f\u652f\u6301\u6216\u4fdd\u969c\u8d54\u4ed8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ch\u1ee9ng ch\u1ec9 tr\u1ea3 ph\u00ed cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn h\u01a1n, bao g\u1ed3m ch\u1ee9ng ch\u1ec9 lo\u1ea1i OV (Organizational Validation) v\u00e0 EV (Extended Validation), gi\u00fap ch\u1ee9ng minh danh t\u00ednh c\u1ee7a doanh nghi\u1ec7p v\u00e0 n\u00e2ng cao m\u1ee9c \u0111\u1ed9 tin c\u1eady c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u. Ngo\u00e0i ra, ch\u1ee9ng ch\u1ec9 tr\u1ea3 ph\u00ed th\u01b0\u1eddng c\u00f3 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng d\u00e0i h\u01a1n, d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt chuy\u00ean nghi\u1ec7p, v\u00e0 m\u1ee9c b\u1ea3o hi\u1ec3m r\u1ee7i ro cao h\u01a1n, t\u1eeb \u0111\u00f3 mang l\u1ea1i s\u1ef1 b\u1ea3o v\u1ec7 v\u00e0 \u0111\u1ed9 tin c\u1eady to\u00e0n di\u1ec7n h\u01a1n trong m\u00f4i tr\u01b0\u1eddng kinh doanh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1ed9t ch\u1ee9ng ch\u1ec9 SSL c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng cho nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c, nh\u01b0ng \u0111i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i ch\u1ee9ng ch\u1ec9 c\u1ee5 th\u1ec3 m\u00e0 b\u1ea1n mua. Ch\u1ee9ng ch\u1ec9 cho m\u1ed9t t\u00ean mi\u1ec1n duy nh\u1ea5t ch\u1ec9 c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 m\u1ed9t t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng. Ch\u1ee9ng ch\u1ec9 cho nhi\u1ec1u t\u00ean mi\u1ec1n cho ph\u00e9p b\u1ea1n th\u00eam nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00e1c nhau (v\u00ed d\u1ee5: example.com v\u00e0 example.net) v\u00e0o c\u00f9ng m\u1ed9t ch\u1ee9ng ch\u1ec9. 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\u1ea5p d\u01b0\u1edbi c\u1ee7a n\u00f3 (v\u00ed d\u1ee5: *.example.com), r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng tr\u01b0\u1eddng h\u1ee3p c\u00f3 nhi\u1ec1u t\u00ean mi\u1ec1n con. Khi n\u1ed9p \u0111\u01a1n xin c\u1ea5p ch\u1ee9ng ch\u1ec9, h\u00e3y l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vi\u1ec7c tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 website kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong giai \u0111o\u1ea1n kh\u1edfi t\u1ea1o k\u1ebft n\u1ed1i (giao ti\u1ebfp \u201chandshake\u201d), do c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c m\u00e3 h\u00f3a\/kh\u00f3a gi\u1ea3i kh\u00f4ng \u0111\u1ed1i x\u1ee9ng v\u00e0 x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9, s\u1ebd c\u00f3 m\u1ed9t kho\u1ea3ng th\u1eddi gian tr\u1ec5 nh\u1ecf, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng miligi\u00e2y. Tuy nhi\u00ean, m\u1ed9t khi k\u00eanh truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u h\u1ea7u nh\u01b0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u n\u0103ng. \u0110i\u1ec1u quan tr\u1ecdng h\u01a1n n\u1eefa l\u00e0 giao th\u1ee9c TLS 1.3 hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a \u0111\u00e1ng k\u1ec3, gi\u00fap qu\u00e1 tr\u00ecnh kh\u1edfi t\u1ea1o k\u1ebft n\u1ed1i di\u1ec5n ra nhanh h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, vi\u1ec7c k\u00edch ho\u1ea1t HTTPS l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 s\u1eed d\u1ee5ng giao th\u1ee9c HTTP\/2. C\u00e1c t\u00ednh n\u0103ng c\u1ee7a HTTP\/2 nh\u01b0 \u0111a lu\u1ed3ng (multiplexing) v\u00e0 n\u00e9n ti\u00eau \u0111\u1ec1 (header compression) c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 t\u1ea3i trang, v\u00e0 th\u01b0\u1eddng c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp ho\u00e0n to\u00e0n ho\u1eb7c th\u1eadm ch\u00ed v\u01b0\u1ee3t qua nh\u1eefng chi ph\u00ed ph\u00e1t sinh t\u1eeb qu\u00e1 tr\u00ecnh k\u1ebft n\u1ed1i SSL (SSL handshake). Do \u0111\u00f3, x\u00e9t v\u1ec1 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng t\u1ed5ng th\u1ec3, vi\u1ec7c tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL th\u01b0\u1eddng mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch h\u01a1n l\u00e0 r\u1ee7i ro.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a m\u1ed9t trang web c\u00f3 an to\u00e0n v\u00e0 h\u1ee3p l\u1ec7 hay kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft m\u1ed9t trang web an to\u00e0n b\u1eb1ng c\u00e1ch quan s\u00e1t thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t: c\u00e1c trang web an to\u00e0n s\u1ebd hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a, v\u00e0 \u0111\u1ecba ch\u1ec9 b\u1eaft \u0111\u1ea7u b\u1eb1ng \u201chttps:\/\/\u201d. B\u1ea1n c\u00f3 th\u1ec3 nh\u1ea5p v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a \u0111\u1ec3 xem chi ti\u1ebft ch\u1ee9ng ch\u1ec9, bao g\u1ed3m th\u00f4ng tin v\u1ec1 t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9, th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c v\u00e0 t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi ch\u1ee9ng ch\u1ec9 \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb trang web n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn chuy\u00ean nghi\u1ec7p \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u00e1nh gi\u00e1 to\u00e0n di\u1ec7n h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c b\u00e0i ki\u1ec3m tra mi\u1ec5n ph\u00ed do Qualys SSL Labs cung c\u1ea5p. C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd ti\u1ebfn h\u00e0nh qu\u00e9t s\u00e2u r\u1ed9ng t\u1eeb nhi\u1ec1u kh\u00eda c\u1ea1nh nh\u01b0 t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a ch\u1ee9ng ch\u1ec9, kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 c\u00e1c giao th\u1ee9c, m\u1ee9c \u0111\u1ed9 m\u1ea1nh m\u1ebd c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a, c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt, v.v., \u0111\u1ed3ng th\u1eddi \u0111\u01b0a ra \u0111i\u1ec3m s\u1ed1 chi ti\u1ebft v\u00e0 \u0111\u1ec1 xu\u1ea5t c\u1ea3i thi\u1ec7n. \u0110\u00e2y l\u00e0 nh\u1eefng c\u00f4ng c\u1ee5 h\u1eefu \u00edch gi\u00fap b\u1ea3o v\u1ec7 an ninh SSL m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>","protected":false},"excerpt":{"rendered":"<p>SSL ch\u1ee9ng ch\u1ec9 l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 k\u00edch ho\u1ea1t ch\u1ebf \u0111\u1ed9 HTTPS v\u00e0 b\u1ea3o v\u1ec7 an to\u00e0n cho d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i tr\u00ean trang web. B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch chi ti\u1ebft v\u1ec1 nguy\u00ean l\u00fd m\u00e3 h\u00f3a c\u1ee7a SSL, c\u01a1 ch\u1ebf tin c\u1eady c\u1ee7a c\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authorities), c\u0169ng nh\u01b0 c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 ph\u1ed5 bi\u1ebfn nh\u01b0 DV (Domain Validation), OV (Organization Validation), v\u00e0 EV (Extended Validation). Ngo\u00e0i ra, b\u00e0i vi\u1ebft c\u00f2n m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb vi\u1ec7c n\u1ed9p \u0111\u01a1n xin c\u1ea5p ch\u1ee9ng ch\u1ec9, x\u00e1c th\u1ef1c th\u00f4ng tin, cho \u0111\u1ebfn vi\u1ec7c c\u00e0i \u0111\u1eb7t v\u00e0 tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 nh\u01b0 Apache\/Nginx. \u0110\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn h\u1eefu \u00edch gi\u00fap c\u00e1c trang web th\u1ef1c hi\u1ec7n vi\u1ec7c truy\u1ec1n th\u00f4ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a m\u1ed9t c\u00e1ch an to\u00e0n<\/p>","protected":false},"author":2,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[326,11,449,319,355],"knowledge_category":[277],"class_list":["post-12359897","knowledge_post","type-knowledge_post","status-publish","hentry","tag-https-guide","tag-ssl-certificate","tag-encryption","tag-website-security","tag-deployment-guide","knowledge_category-ssl-certificate"],"acf":{"site_seo_keywords":"SSL\u8bc1\u4e66,HTTPS\u90e8\u7f72,\u8bc1\u4e66\u9a8c\u8bc1,CA\u673a\u6784,DV\/OV\/EV\u8bc1\u4e66,TLS\u63e1\u624b,\u670d\u52a1\u5668\u914d\u7f6e,\u52a0\u5bc6\u901a\u4fe1"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12359897","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\/2"}],"version-history":[{"count":0,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12359897\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12359897"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12359897"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12359897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}