{"id":39036,"date":"2026-02-03T13:25:45","date_gmt":"2026-02-03T06:25:45","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=39036"},"modified":"2026-02-04T08:18:00","modified_gmt":"2026-02-04T01:18:00","slug":"multi-domain-ssl-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/","title":{"rendered":"Multi Domain SSL L\u00e0 G\u00ec? T\u1ed5ng quan &#038; So S\u00e1nh V\u1edbi Wildcard SSL"},"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\/multi-domain-ssl-la-gi\/#Multi-Domain-SSL-la-gi\" >Multi Domain SSL l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#SAN-SSL-Subject-Alternative-Name\" >SAN SSL (Subject Alternative Name)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#UCC-SSL-Unified-Communications-Certificate\" >UCC SSL (Unified Communications Certificate)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#So-sanh-Multi-Domain-SSL-voi-Wildcard-SSL\" >So s\u00e1nh Multi Domain SSL v\u1edbi Wildcard SSL<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Phan-biet-Multi-Domain-SSL-va-Wildcard-SSL\" >Ph\u00e2n bi\u1ec7t Multi Domain SSL v\u00e0 Wildcard 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\/multi-domain-ssl-la-gi\/#Bang-so-sanh-tong-quan\" >B\u1ea3ng so s\u00e1nh t\u1ed5ng quan<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Loi-ich-khi-su-dung-Multi-Domain-SSL\" >L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng Multi Domain SSL<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Tiet-kiem-chi-phi-SSL-toi-da\" >Ti\u1ebft ki\u1ec7m chi ph\u00ed SSL t\u1ed1i \u0111a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Quan-ly-tap-trung-don-gian-hoa-van-hanh\" >Qu\u1ea3n l\u00fd t\u1eadp trung, \u0111\u01a1n gi\u1ea3n h\u00f3a v\u1eadn h\u00e0nh<\/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\/multi-domain-ssl-la-gi\/#Tiet-kiem-dia-chi-IP-va-tai-nguyen-may-chu\" >Ti\u1ebft ki\u1ec7m \u0111\u1ecba ch\u1ec9 IP v\u00e0 t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Uy-tin-thuong-hieu-dong-nhat\" >Uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ed3ng nh\u1ea5t<\/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\/multi-domain-ssl-la-gi\/#Multi-Domain-SSL-dung-cho-nhung-truong-hop-nao\" >Multi Domain SSL d\u00f9ng cho nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0o?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Doanh-nghiep-co-nhieu-website-doc-lap\" >Doanh nghi\u1ec7p c\u00f3 nhi\u1ec1u website \u0111\u1ed9c l\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#He-thong-Microsite-va-Landing-Page\" >H\u1ec7 th\u1ed1ng Microsite v\u00e0 Landing Page<\/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\/multi-domain-ssl-la-gi\/#Moi-truong-Microsoft-ExchangeLyncOffice-Communication\" >M\u00f4i tr\u01b0\u1eddng Microsoft Exchange\/Lync\/Office Communication<\/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\/multi-domain-ssl-la-gi\/#Top-3-thuong-hieu-Multi-Domain-SSL-pho-bien-tai-Viet-Nam\" >Top 3 th\u01b0\u01a1ng hi\u1ec7u Multi Domain SSL ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Sectigo-truoc-day-la-Comodo-CA\" >Sectigo (tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 Comodo CA)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Geotrust\" >Geotrust<\/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\/multi-domain-ssl-la-gi\/#Digicert\" >Digicert<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Cau-hoi-thuong-gap-FAQs\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Multi-Domain-SSL-ho-tro-bao-nhieu-ten-mien-toi-da\" >Multi Domain SSL h\u1ed7 tr\u1ee3 bao nhi\u00eau t\u00ean mi\u1ec1n t\u1ed1i \u0111a?<\/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\/multi-domain-ssl-la-gi\/#Multi-Domain-SSL-co-dung-cho-subdomain-khong\" >Multi Domain SSL c\u00f3 d\u00f9ng cho subdomain kh\u00f4ng?<\/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\/multi-domain-ssl-la-gi\/#Co-the-thay-doi-ten-mien-sau-khi-da-cai-dat-SSL-khong\" >C\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00ean mi\u1ec1n sau khi \u0111\u00e3 c\u00e0i \u0111\u1eb7t SSL kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Multi-Domain-SSL-co-an-toan-khong\" >Multi Domain SSL c\u00f3 an to\u00e0n kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Multi-Domain-SSL-co-ho-tro-thanh-dia-chi-mau-xanh-EV-khong\" >Multi Domain SSL c\u00f3 h\u1ed7 tr\u1ee3 thanh \u0111\u1ecba ch\u1ec9 m\u00e0u xanh (EV) kh\u00f4ng?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/#Loi-ket\" >L\u1eddi k\u1ebft<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"summary\"><strong>T\u00f3m t\u1eaft n\u1ed9i dung:<\/strong><br \/>\nMulti Domain SSL (hay c\u00f2n g\u1ecdi l\u00e0 SAN SSL) l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt k\u1ef9 thu\u1eadt s\u1ed1 cho ph\u00e9p m\u1ed9t ch\u1ee9ng ch\u1ec9 duy nh\u1ea5t b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n ho\u00e0n to\u00e0n kh\u00e1c nhau. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u cho c\u00e1c doanh nghi\u1ec7p s\u1edf h\u1eefu nhi\u1ec1u website, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh qu\u1ea3n l\u00fd, th\u1ed1ng nh\u1ea5t ng\u00e0y h\u1ebft h\u1ea1n v\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3 chi ph\u00ed so v\u1edbi vi\u1ec7c mua l\u1ebb t\u1eebng ch\u1ee9ng ch\u1ec9 SSL.<strong>Th\u00f4ng tin ch\u00ednh trong b\u00e0i:<\/strong><\/p>\n<ul>\n<li><strong>Kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i:<\/strong> Multi Domain SSL s\u1eed d\u1ee5ng tr\u01b0\u1eddng SAN (Subject Alternative Name) \u0111\u1ec3 m\u1edf r\u1ed9ng ph\u1ea1m vi b\u1ea3o v\u1ec7.<\/li>\n<li><strong>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng:<\/strong> M\u1ed9t ch\u1ee9ng ch\u1ec9 g\u1ed1c (Primary Domain) bao h\u00e0m danh s\u00e1ch c\u00e1c t\u00ean mi\u1ec1n ph\u1ee5 (Additional Domains) \u0111\u01b0\u1ee3c khai b\u00e1o trong CSR.<\/li>\n<li><strong>Ph\u00e2n lo\u1ea1i:<\/strong> Ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng s\u1ef1 kh\u00e1c nhau v\u1ec1 ch\u1ee9c n\u0103ng v\u00e0 chi ph\u00ed gi\u1eefa Multi Domain SSL v\u00e0 Wildcard SSL.<\/li>\n<li><strong>L\u1ee3i \u00edch th\u1ef1c t\u1ebf:<\/strong> Ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch, kh\u00f4ng c\u1ea7n nhi\u1ec1u \u0111\u1ecba ch\u1ec9 IP ri\u00eang, d\u1ec5 d\u00e0ng qu\u1ea3n l\u00fd t\u1eadp trung tr\u00ean m\u1ed9t m\u00e1y ch\u1ee7.<\/li>\n<li><strong>\u1ee8ng d\u1ee5ng:<\/strong> Ph\u00f9 h\u1ee3p cho Microsoft Exchange, Office Communications v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng Hosting qu\u1ea3n l\u00fd nhi\u1ec1u Website v\u1ec7 tinh.<\/li>\n<\/ul>\n<\/div>\n<p>Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng website cho doanh nghi\u1ec7p ho\u1eb7c kh\u00e1ch h\u00e0ng, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean th\u01b0\u1eddng \u0111\u1ed1i m\u1eb7t v\u1edbi b\u00e0i to\u00e1n qu\u1ea3n l\u00fd h\u00e0ng lo\u1ea1t t\u00ean mi\u1ec1n kh\u00e1c nhau. Vi\u1ec7c ph\u1ea3i ghi nh\u1edb ng\u00e0y h\u1ebft h\u1ea1n, th\u1ef1c hi\u1ec7n x\u00e1c th\u1ef1c v\u00e0 gia h\u1ea1n cho 5, 10 hay th\u1eadm ch\u00ed 50 ch\u1ee9ng ch\u1ec9 SSL ri\u00eang l\u1ebb kh\u00f4ng ch\u1ec9 t\u1ed1n k\u00e9m th\u1eddi gian m\u00e0 c\u00f2n g\u00e2y l\u00e3ng ph\u00ed ng\u00e2n s\u00e1ch l\u1edbn. <a href=\"https:\/\/interdata.vn\/blog\/multi-domain-ssl-la-gi\/\"><strong>Multi Domain SSL<\/strong><\/a> ch\u00ednh l\u00e0 gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c nhi\u1ec1u IT Admin v\u00e0 ch\u1ee7 doanh nghi\u1ec7p t\u00ecm ki\u1ebfm \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<p>B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd ph\u00e2n t\u00edch t\u1ea5t t\u1ea7n t\u1eadt t\u1eeb c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng, l\u00fd do v\u00ec sao \u0111\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a h\u1ea1 t\u1ea7ng b\u1ea3o m\u1eadt \u0111\u1ebfn tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Multi-Domain-SSL-la-gi\"><\/span>Multi Domain SSL l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Multi Domain SSL<\/strong> (hay SSL \u0111a t\u00ean mi\u1ec1n) l\u00e0 m\u1ed9t lo\u1ea1i ch\u1ee9ng ch\u1ec9 s\u1ed1 b\u1ea3o m\u1eadt cho ph\u00e9p b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n ho\u00e0n to\u00e0n kh\u00e1c nhau tr\u00ean c\u00f9ng m\u1ed9t ch\u1ee9ng ch\u1ec9 duy nh\u1ea5t. Thay v\u00ec ph\u1ea3i c\u00e0i \u0111\u1eb7t v\u00e0 qu\u1ea3n l\u00fd nhi\u1ec1u file ch\u1ee9ng ch\u1ec9 ri\u00eang bi\u1ec7t, ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n m\u1ed9t l\u1ea7n x\u00e1c th\u1ef1c \u0111\u1ec3 b\u1ea3o m\u1eadt cho danh s\u00e1ch c\u00e1c website c\u1ee7a m\u00ecnh.<\/p>\n<p>V\u1ec1 b\u1ea3n ch\u1ea5t k\u1ef9 thu\u1eadt, lo\u1ea1i ch\u1ee9ng ch\u1ec9 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi hai thu\u1eadt ng\u1eef chuy\u00ean ng\u00e0nh ph\u1ed5 bi\u1ebfn kh\u00e1c:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"SAN-SSL-Subject-Alternative-Name\"><\/span>SAN SSL (Subject Alternative Name)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 t\u00ean g\u1ecdi ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ee9ng ch\u1ec9. <strong>SAN SSL l\u00e0 g\u00ec<\/strong>? SAN (Subject Alternative Name) l\u00e0 m\u1ed9t tr\u01b0\u1eddng \u0111\u1eb7c bi\u1ec7t trong c\u1ea5u tr\u00fac c\u1ee7a ch\u1ee9ng ch\u1ec9 s\u1ed1 X.509. Tr\u01b0\u1eddng n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb li\u1ec7t k\u00ea th\u00eam c\u00e1c t\u00ean mi\u1ec1n b\u1ed5 sung (ngo\u00e0i t\u00ean mi\u1ec1n ch\u00ednh) m\u00e0 ch\u1ee9ng ch\u1ec9 s\u1ebd b\u1ea3o v\u1ec7. Do \u0111\u00f3, trong gi\u1edbi k\u1ef9 thu\u1eadt, Multi Domain SSL th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi tr\u1ef1c ti\u1ebfp l\u00e0 SAN Certificate.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39037\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Multi-Domain-SSL-la-gi.jpg\" alt=\"Multi Domain SSL l\u00e0 g\u00ec\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Multi-Domain-SSL-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Multi-Domain-SSL-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Multi-Domain-SSL-la-gi-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"UCC-SSL-Unified-Communications-Certificate\"><\/span>UCC SSL (Unified Communications Certificate)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Thu\u1eadt ng\u1eef n\u00e0y xu\u1ea5t hi\u1ec7n g\u1eafn li\u1ec1n v\u1edbi m\u00f4i tr\u01b0\u1eddng Microsoft. Ban \u0111\u1ea7u, c\u00e1c ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u1ee7 y\u1ebfu \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho Microsoft Exchange Server v\u00e0 Office Communications Server. C\u00e1c d\u1ecbch v\u1ee5 n\u00e0y y\u00eau c\u1ea7u m\u1ed9t ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1ec3 b\u1ea3o m\u1eadt nhi\u1ec1u \u0111\u1ecba ch\u1ec9 n\u1ed9i b\u1ed9 v\u00e0 b\u00ean ngo\u00e0i nh\u01b0 mail.domain.com, autodiscover.domain.com.<\/p>\n<p>V\u00ec v\u1eady, <strong>UCC SSL<\/strong> ch\u00ednh l\u00e0 m\u1ed9t d\u1ea1ng c\u1ee7a Multi Domain SSL \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c n\u1ec1n t\u1ea3ng giao ti\u1ebfp h\u1ee3p nh\u1ea5t (Unified Communications).<\/p>\n<p><strong>V\u00ed d\u1ee5 minh h\u1ecda: <\/strong>Khi s\u1edf h\u1eefu m\u1ed9t ch\u1ee9ng ch\u1ec9 Multi Domain SSL, b\u1ea1n c\u00f3 th\u1ec3 b\u1ea3o m\u1eadt \u0111\u1ed3ng th\u1eddi cho c\u00e1c \u0111\u1ecba ch\u1ec9 sau:<\/p>\n<ul>\n<li>interdata.vn (T\u00ean mi\u1ec1n ch\u00ednh)<\/li>\n<li>interdata.com (T\u00ean mi\u1ec1n ph\u1ee5 1 &#8211; Kh\u00e1c \u0111u\u00f4i m\u1edf r\u1ed9ng)<\/li>\n<li>khachhang-abc.net (T\u00ean mi\u1ec1n ph\u1ee5 2 &#8211; Kh\u00e1c ho\u00e0n to\u00e0n)<\/li>\n<li>mail.congty.com (Subdomain c\u1ee7a m\u1ed9t t\u00ean mi\u1ec1n kh\u00e1c)<\/li>\n<li>payment.hethong.org<\/li>\n<\/ul>\n<p>S\u1ef1 linh ho\u1ea1t n\u00e0y l\u00e0m cho Multi Domain SSL tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 \u0111\u1eafc l\u1ef1c cho c\u00e1c \u0111\u01a1n v\u1ecb Agency ho\u1eb7c doanh nghi\u1ec7p s\u1edf h\u1eefu h\u1ec7 sinh th\u00e1i nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-Multi-Domain-SSL-voi-Wildcard-SSL\"><\/span>So s\u00e1nh Multi Domain SSL v\u1edbi Wildcard SSL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u00e2y l\u00e0 ph\u1ea7n n\u1ed9i dung quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3i \u0111\u00e1p nh\u1eefng nh\u1ea7m l\u1eabn th\u01b0\u1eddng g\u1eb7p c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Vi\u1ec7c ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang lo\u1ea1i ch\u1ee9ng ch\u1ec9, tr\u00e1nh l\u00e3ng ph\u00ed ng\u00e2n s\u00e1ch.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phan-biet-Multi-Domain-SSL-va-Wildcard-SSL\"><\/span>Ph\u00e2n bi\u1ec7t Multi Domain SSL v\u00e0 Wildcard SSL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e2u h\u1ecfi v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 <strong>so s\u00e1nh Wildcard v\u00e0 Multi Domain SSL<\/strong> lu\u00f4n l\u00e0 ch\u1ee7 \u0111\u1ec1 \u0111\u01b0\u1ee3c quan t\u00e2m nhi\u1ec1u nh\u1ea5t. D\u00f9 c\u1ea3 hai \u0111\u1ec1u b\u1ea3o v\u1ec7 &#8220;nhi\u1ec1u h\u01a1n m\u1ed9t&#8221; \u0111\u1ecba ch\u1ec9, nh\u01b0ng ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang ho\u00e0n to\u00e0n kh\u00e1c nhau:<\/p>\n<ul>\n<li><strong>Wildcard SSL:<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 <strong>m\u1ed9t t\u00ean mi\u1ec1n ch\u00ednh v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c subdomain<\/strong> tr\u1ef1c thu\u1ed9c c\u1ea5p 1 c\u1ee7a n\u00f3.\n<ul>\n<li><strong>C\u00fa ph\u00e1p<\/strong>: *.domain.com.<\/li>\n<li><strong>Ph\u1ea1m vi<\/strong>: B\u1ea3o v\u1ec7 blog.domain.com, shop.domain.com, mail.domain.com&#8230; nh\u01b0ng <strong>kh\u00f4ng<\/strong> b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c domain.net hay otherdomain.com.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Multi Domain SSL:<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 <strong>nhi\u1ec1u t\u00ean mi\u1ec1n g\u1ed1c kh\u00e1c nhau<\/strong>.\n<ul>\n<li><strong>Ph\u1ea1m vi<\/strong>: B\u1ea3o v\u1ec7 domain.com, domain.net, website-khac.vn.<\/li>\n<li><strong>L\u01b0u \u00fd<\/strong>: B\u1ea1n v\u1eabn c\u00f3 th\u1ec3 nh\u1eadp subdomain v\u00e0o Multi Domain SSL (v\u00ed d\u1ee5 sub.domain.com), nh\u01b0ng n\u00f3 s\u1ebd t\u00ednh l\u00e0 1 l\u01b0\u1ee3t s\u1eed d\u1ee5ng trong danh s\u00e1ch SAN (1 slot).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Hi\u1ec7n nay, tr\u00ean th\u1ecb tr\u01b0\u1eddng c\u00f3 d\u00f2ng s\u1ea3n ph\u1ea9m lai g\u1ecdi l\u00e0 <strong>Multi-Domain Wildcard SSL<\/strong>. Lo\u1ea1i n\u00e0y cho ph\u00e9p b\u1ea1n b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n g\u1ed1c kh\u00e1c nhau V\u00c0 t\u1ea5t c\u1ea3 c\u00e1c subdomain c\u1ee7a ch\u00fang (V\u00ed d\u1ee5: *.domain.com v\u00e0 *.domain.net). Tuy nhi\u00ean, chi ph\u00ed cho lo\u1ea1i n\u00e0y th\u01b0\u1eddng r\u1ea5t cao.<\/p>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39039\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/So-sanh-Multi-Domain-SSL-voi-Wildcard-SSL.jpg\" alt=\"So s\u00e1nh Multi Domain SSL v\u1edbi Wildcard SSL\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/So-sanh-Multi-Domain-SSL-voi-Wildcard-SSL.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/So-sanh-Multi-Domain-SSL-voi-Wildcard-SSL-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/So-sanh-Multi-Domain-SSL-voi-Wildcard-SSL-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Bang-so-sanh-tong-quan\"><\/span>B\u1ea3ng so s\u00e1nh t\u1ed5ng quan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 gi\u00fap b\u1ea1n c\u00f3 c\u00e1i nh\u00ecn tr\u1ef1c quan v\u1ec1 Multi Domain SSL v\u00e0 Wildcard SSL, InterData t\u1ed5ng h\u1ee3p b\u1ea3ng so s\u00e1nh c\u00e1c ti\u00eau ch\u00ed k\u1ef9 thu\u1eadt d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg,#0C40F4,#077FFA,#0497FC); color: #ffffff;\">\n<th style=\"padding: 12px; border: 1px solid #e0e0e0; text-align: center;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"padding: 12px; border: 1px solid #e0e0e0; text-align: center;\">Wildcard SSL<\/th>\n<th style=\"padding: 12px; border: 1px solid #e0e0e0; text-align: center;\">Multi Domain SSL (SAN\/UCC)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0; font-weight: 600;\">Ph\u1ea1m vi b\u1ea3o m\u1eadt<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">1 t\u00ean mi\u1ec1n ch\u00ednh v\u00e0 kh\u00f4ng gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng Subdomain c\u00f9ng c\u1ea5p.<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">Nhi\u1ec1u t\u00ean mi\u1ec1n g\u1ed1c kh\u00e1c nhau (FQDNs) v\u00e0 c\u00e1c Subdomain c\u1ee5 th\u1ec3.<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e0e0e0; font-weight: 600;\">C\u00fa ph\u00e1p \u0111i\u1ec3n h\u00ecnh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">*.domain.com<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">domain.com, abc.net, xyz.vn<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0; font-weight: 600;\">S\u1ed1 l\u01b0\u1ee3ng Domain<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">1 Domain ch\u00ednh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">T\u1eeb 3 \u0111\u1ebfn 250 Domain (t\u00f9y g\u00f3i)<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e0e0e0; font-weight: 600;\">M\u1edf r\u1ed9ng\/Thay \u0111\u1ed5i<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">T\u1ef1 \u0111\u1ed9ng b\u1ea3o v\u1ec7 Subdomain m\u1edbi t\u1ea1o, kh\u00f4ng c\u1ea7n c\u1ea5p l\u1ea1i.<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">C\u00f3 th\u1ec3 th\u00eam\/x\u00f3a\/s\u1eeda Domain th\u00f4ng qua Re-issue.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0; font-weight: 600;\">Chi ph\u00ed<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">Trung b\u00ecnh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">Cao h\u01a1n Wildcard nh\u01b0ng R\u1ebb h\u01a1n so v\u1edbi mua nhi\u1ec1u Single SSL.<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e0e0e0; font-weight: 600;\">\u0110\u1ed1i t\u01b0\u1ee3ng ph\u00f9 h\u1ee3p<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">Website th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed c\u00f3 nhi\u1ec1u trang con (shop, blog, pay&#8230;).<\/td>\n<td style=\"padding: 12px; border: 1px solid #e0e0e0;\">Doanh nghi\u1ec7p s\u1edf h\u1eefu nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u, Agency, h\u1ec7 th\u1ed1ng Exchange.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Loi-ich-khi-su-dung-Multi-Domain-SSL\"><\/span>L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng Multi Domain SSL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u1eeb s\u1eed d\u1ee5ng nhi\u1ec1u ch\u1ee9ng ch\u1ec9 \u0111\u01a1n l\u1ebb sang gi\u1ea3i ph\u00e1p <strong>qu\u1ea3n l\u00fd SSL t\u1eadp trung<\/strong> mang l\u1ea1i hi\u1ec7u qu\u1ea3 r\u00f5 r\u1ec7t v\u1ec1 c\u1ea3 m\u1eb7t t\u00e0i ch\u00ednh l\u1eabn v\u1eadn h\u00e0nh k\u1ef9 thu\u1eadt.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tiet-kiem-chi-phi-SSL-toi-da\"><\/span>Ti\u1ebft ki\u1ec7m chi ph\u00ed SSL t\u1ed1i \u0111a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 ti\u00ean quy\u1ebft khi\u1ebfn c\u00e1c doanh nghi\u1ec7p SME l\u1ef1a ch\u1ecdn Multi Domain SSL.<\/p>\n<p>Ch\u00fang ta h\u00e3y l\u00e0m m\u1ed9t b\u00e0i to\u00e1n \u0111\u01a1n gi\u1ea3n: Gi\u1ea3 s\u1eed chi ph\u00ed trung b\u00ecnh cho m\u1ed9t ch\u1ee9ng ch\u1ec9 Single SSL uy t\u00edn l\u00e0 300.000 VN\u0110\/n\u0103m. N\u1ebfu b\u1ea1n c\u00f3 5 website, t\u1ed5ng chi ph\u00ed l\u00e0 1.500.000 VN\u0110.<\/p>\n<p>Trong khi \u0111\u00f3, m\u1ed9t g\u00f3i Multi Domain SSL (h\u1ed7 tr\u1ee3 s\u1eb5n 5 t\u00ean mi\u1ec1n) th\u01b0\u1eddng c\u00f3 m\u1ee9c gi\u00e1 th\u1ea5p h\u01a1n kho\u1ea3ng 20-30% so v\u1edbi t\u1ed5ng gi\u00e1 tr\u1ecb c\u1ee7a 5 ch\u1ee9ng ch\u1ec9 l\u1ebb c\u1ed9ng l\u1ea1i. Khi s\u1ed1 l\u01b0\u1ee3ng t\u00ean mi\u1ec1n c\u00e0ng l\u1edbn (l\u00ean t\u1edbi h\u00e0ng ch\u1ee5c), m\u1ee9c ch\u00eanh l\u1ec7ch chi ph\u00ed n\u00e0y c\u00e0ng tr\u1edf n\u00ean kh\u1ed5ng l\u1ed3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quan-ly-tap-trung-don-gian-hoa-van-hanh\"><\/span>Qu\u1ea3n l\u00fd t\u1eadp trung, \u0111\u01a1n gi\u1ea3n h\u00f3a v\u1eadn h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ed7i \u00e1m \u1ea3nh l\u1edbn nh\u1ea5t c\u1ee7a b\u1ed9 ph\u1eadn IT l\u00e0 vi\u1ec7c qu\u00ean gia h\u1ea1n m\u1ed9t trong s\u1ed1 h\u00e0ng ch\u1ee5c ch\u1ee9ng ch\u1ec9 SSL \u0111ang qu\u1ea3n l\u00fd, d\u1eabn \u0111\u1ebfn vi\u1ec7c website b\u1ecb gi\u00e1n \u0111o\u1ea1n ho\u1eb7c hi\u1ec7n c\u1ea3nh b\u00e1o b\u1ea3o m\u1eadt. V\u1edbi Multi Domain SSL:<\/p>\n<ul>\n<li>B\u1ea1n ch\u1ec9 c\u00f3 <strong>m\u1ed9t ng\u00e0y h\u1ebft h\u1ea1n duy nh\u1ea5t<\/strong> cho t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n.<\/li>\n<li>Ch\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n x\u00e1c th\u1ef1c doanh nghi\u1ec7p (OV\/EV) m\u1ed9t l\u1ea7n cho to\u00e0n b\u1ed9 ch\u1ee9ng ch\u1ec9.<\/li>\n<li>Vi\u1ec7c c\u00e0i \u0111\u1eb7t tr\u00ean Server di\u1ec5n ra m\u1ed9t l\u1ea7n, thay v\u00ec ph\u1ea3i c\u1ea5u h\u00ecnh Virtual Host cho t\u1eebng ch\u1ee9ng ch\u1ec9 ri\u00eang l\u1ebb.<\/li>\n<\/ul>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39038\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Loi-ich-khi-su-dung-Multi-Domain-SSL-.jpg\" alt=\"L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng Multi Domain SSL\u00a0\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Loi-ich-khi-su-dung-Multi-Domain-SSL-.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Loi-ich-khi-su-dung-Multi-Domain-SSL--300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Loi-ich-khi-su-dung-Multi-Domain-SSL--768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Tiet-kiem-dia-chi-IP-va-tai-nguyen-may-chu\"><\/span>Ti\u1ebft ki\u1ec7m \u0111\u1ecba ch\u1ec9 IP v\u00e0 t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u01b0\u1edbc \u0111\u00e2y, v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 m\u00e1y ch\u1ee7 c\u0169 kh\u00f4ng h\u1ed7 tr\u1ee3 SNI (Server Name Indication), m\u1ed7i ch\u1ee9ng ch\u1ec9 SSL b\u1eaft bu\u1ed9c ph\u1ea3i \u0111i k\u00e8m v\u1edbi m\u1ed9t \u0111\u1ecba ch\u1ec9 IP ri\u00eang bi\u1ec7t. \u0110i\u1ec1u n\u00e0y g\u00e2y l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean IP v4 v\u1ed1n \u0111ang c\u1ea1n ki\u1ec7t.<\/p>\n<p>D\u00f9 hi\u1ec7n nay SNI \u0111\u00e3 ph\u1ed5 bi\u1ebfn, nh\u01b0ng vi\u1ec7c qu\u1ea3n l\u00fd m\u1ed9t ch\u1ee9ng ch\u1ec9 duy nh\u1ea5t v\u1eabn gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a c\u1ea5u h\u00ecnh TLS v\u00e0 gi\u1ea3m g\u00e1nh n\u1eb7ng qu\u1ea3n tr\u1ecb ch\u1ee9ng ch\u1ec9; hi\u1ec7u n\u0103ng x\u1eed l\u00fd HTTPS ph\u1ee5 thu\u1ed9c ch\u1ee7 y\u1ebfu v\u00e0o c\u1ea5u h\u00ecnh server v\u00e0 SNI.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Uy-tin-thuong-hieu-dong-nhat\"><\/span>Uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ed3ng nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t ch\u1ee9ng ch\u1ec9 Multi Domain SSL m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c doanh nghi\u1ec7p (OV) ho\u1eb7c m\u1edf r\u1ed9ng (EV) cho ph\u00e9p t\u00ean c\u1ee7a doanh nghi\u1ec7p b\u1ea1n hi\u1ec3n th\u1ecb trong th\u00f4ng tin ch\u1ee9ng ch\u1ec9 c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c website v\u1ec7 tinh. \u0110i\u1ec1u n\u00e0y kh\u1eb3ng \u0111\u1ecbnh ch\u1ee7 quy\u1ec1n s\u1edf h\u1eefu v\u00e0 t\u0103ng \u0111\u1ed9 tin c\u1eady \u0111\u1ed1i v\u1edbi kh\u00e1ch h\u00e0ng khi h\u1ecd truy c\u1eadp v\u00e0o c\u00e1c t\u00ean mi\u1ec1n kh\u00e1c nhau trong c\u00f9ng h\u1ec7 sinh th\u00e1i c\u1ee7a b\u1ea1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Multi-Domain-SSL-dung-cho-nhung-truong-hop-nao\"><\/span>Multi Domain SSL d\u00f9ng cho nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u1ef1a tr\u00ean kinh nghi\u1ec7m tri\u1ec3n khai th\u1ef1c t\u1ebf c\u1ee7a InterData, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng k\u1ecbch b\u1ea3n ph\u00f9 h\u1ee3p nh\u1ea5t \u0111\u1ec3 tri\u1ec3n khai gi\u1ea3i ph\u00e1p n\u00e0y. Khi b\u1ea1n ph\u00e2n v\u00e2n <strong>khi n\u00e0o n\u00ean d\u00f9ng multi domain ssl<\/strong>, h\u00e3y \u0111\u1ed1i chi\u1ebfu v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p sau:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Doanh-nghiep-co-nhieu-website-doc-lap\"><\/span>Doanh nghi\u1ec7p c\u00f3 nhi\u1ec1u website \u0111\u1ed9c l\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c t\u1eadp \u0111o\u00e0n l\u1edbn th\u01b0\u1eddng s\u1edf h\u1eefu nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u con v\u1edbi c\u00e1c t\u00ean mi\u1ec1n .com, .vn, .net ri\u00eang bi\u1ec7t. V\u00ed d\u1ee5: M\u1ed9t c\u00f4ng ty th\u1ef1c ph\u1ea9m c\u00f3 th\u1ec3 s\u1edf h\u1eefu thucpham.com (trang ch\u00ednh), dichvugiao.vn (trang v\u1eadn chuy\u1ec3n) v\u00e0 tuyendung-fmcg.com (trang tuy\u1ec3n d\u1ee5ng). Multi Domain SSL l\u00e0 l\u1ef1a ch\u1ecdn b\u1eaft bu\u1ed9c \u0111\u1ec3 gom nh\u00f3m qu\u1ea3n l\u00fd c\u00e1c t\u00e0i s\u1ea3n s\u1ed1 n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"He-thong-Microsite-va-Landing-Page\"><\/span>H\u1ec7 th\u1ed1ng Microsite v\u00e0 Landing Page<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c chi\u1ebfn d\u1ecbch Marketing th\u01b0\u1eddng t\u1ea1o ra h\u00e0ng lo\u1ea1t Landing Page v\u1edbi c\u00e1c t\u00ean mi\u1ec1n ng\u1eafn h\u1ea1n ho\u1eb7c t\u00ean mi\u1ec1n chi\u1ebfn d\u1ecbch. S\u1eed d\u1ee5ng SAN SSL gi\u00fap \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ea5p ph\u00e1t b\u1ea3o m\u1eadt nhanh ch\u00f3ng cho c\u00e1c Landing Page m\u1edbi m\u00e0 kh\u00f4ng c\u1ea7n duy\u1ec7t mua ng\u00e2n s\u00e1ch nhi\u1ec1u l\u1ea7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Moi-truong-Microsoft-ExchangeLyncOffice-Communication\"><\/span>M\u00f4i tr\u01b0\u1eddng Microsoft Exchange\/Lync\/Office Communication<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf ph\u1ea7n \u0111\u1ecbnh ngh\u0129a UCC, c\u00e1c h\u1ec7 th\u1ed1ng mail server c\u1ee7a Microsoft y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt ph\u1ee9c t\u1ea1p cho nhi\u1ec1u t\u00ean \u0111\u1ecbnh danh n\u1ed9i b\u1ed9 v\u00e0 b\u00ean ngo\u00e0i. Multi Domain SSL sinh ra l\u00e0 \u0111\u1ec3 ph\u1ee5c v\u1ee5 ki\u1ebfn tr\u00fac n\u00e0y.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Top-3-thuong-hieu-Multi-Domain-SSL-pho-bien-tai-Viet-Nam\"><\/span>Top 3 th\u01b0\u01a1ng hi\u1ec7u Multi Domain SSL ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Th\u1ecb tr\u01b0\u1eddng SSL Vi\u1ec7t Nam hi\u1ec7n nay r\u1ea5t \u0111a d\u1ea1ng, tuy nhi\u00ean 3 c\u00e1i t\u00ean d\u01b0\u1edbi \u0111\u00e2y chi\u1ebfm th\u1ecb ph\u1ea7n l\u1edbn nh\u1ea5t nh\u1edd s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed, \u0111\u1ed9 uy t\u00edn v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sectigo-truoc-day-la-Comodo-CA\"><\/span>Sectigo (tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 Comodo CA)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Sectigo Multi Domain SSL<\/strong> l\u00e0 d\u00f2ng s\u1ea3n ph\u1ea9m ph\u1ed5 bi\u1ebfn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> M\u1ee9c gi\u00e1 c\u1ea1nh tranh nh\u1ea5t th\u1ecb tr\u01b0\u1eddng, ph\u00f9 h\u1ee3p cho c\u00e1 nh\u00e2n, SME v\u00e0 c\u00e1c d\u1ef1 \u00e1n kh\u1edfi nghi\u1ec7p. G\u00f3i PositiveSSL Multi-Domain c\u1ee7a h\u00e3ng n\u00e0y th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn &#8220;nh\u1eadp m\u00f4n&#8221; cho c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean.<\/li>\n<li><strong>\u0110\u1eb7c \u0111i\u1ec3m:<\/strong> H\u1ed7 tr\u1ee3 m\u1eb7c \u0111\u1ecbnh 3 t\u00ean mi\u1ec1n, m\u1edf r\u1ed9ng d\u1ec5 d\u00e0ng, th\u1eddi gian c\u1ea5p ph\u00e1t nhanh.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Geotrust\"><\/span>Geotrust<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Geotrust True BusinessID Multi-Domain<\/strong> l\u00e0 d\u00f2ng s\u1ea3n ph\u1ea9m t\u1ea7m trung, \u0111\u01b0\u1ee3c c\u00e1c doanh nghi\u1ec7p v\u1eeba v\u00e0 l\u1edbn tin d\u00f9ng.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> Th\u01b0\u01a1ng hi\u1ec7u c\u00f3 \u0111\u1ed9 nh\u1eadn di\u1ec7n cao, th\u01b0\u1eddng \u0111i k\u00e8m v\u1edbi c\u00e1c g\u00f3i x\u00e1c th\u1ef1c doanh nghi\u1ec7p (OV). Logo ni\u00eam phong \u0111\u1ed9ng (Site Seal) c\u1ee7a Geotrust mang l\u1ea1i c\u1ea3m gi\u00e1c an to\u00e0n cao h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/li>\n<li><strong>\u0110\u1eb7c \u0111i\u1ec3m:<\/strong> Quy tr\u00ecnh x\u00e1c th\u1ef1c nghi\u00eam ng\u1eb7t h\u01a1n Sectigo nh\u01b0ng mang l\u1ea1i \u0111\u1ed9 tin c\u1eady cao h\u01a1n.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Digicert\"><\/span>Digicert<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 th\u01b0\u01a1ng hi\u1ec7u thu\u1ed9c ph\u00e2n kh\u00fac cao c\u1ea5p, th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c ng\u00e2n h\u00e0ng, t\u1ed5 ch\u1ee9c t\u00e0i ch\u00ednh ho\u1eb7c c\u00e1c s\u00e0n th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed l\u1edbn l\u1ef1a ch\u1ecdn.<\/p>\n<ul>\n<li><strong>\u01afu \u0111i\u1ec3m:<\/strong> C\u00f4ng ngh\u1ec7 m\u00e3 h\u00f3a hi\u1ec7n \u0111\u1ea1i, t\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7 OCSP (ki\u1ec3m tra tr\u1ea1ng th\u00e1i ch\u1ee9ng ch\u1ec9) c\u1ef1c nhanh, gi\u00fap website t\u1ea3i nhanh h\u01a1n.<\/li>\n<li><strong>\u0110\u1eb7c \u0111i\u1ec3m:<\/strong> Chi ph\u00ed cao nh\u01b0ng \u0111i k\u00e8m v\u1edbi c\u00e1c ch\u1ebf \u0111\u1ed9 b\u1ea3o hi\u1ec3m r\u1ee7i ro l\u1edbn v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt chuy\u00ean s\u00e2u.<\/li>\n<\/ul>\n<p>Vi\u1ec7c <strong>mua SSL h\u00e3ng n\u00e0o<\/strong> ph\u1ee5 thu\u1ed9c l\u1edbn v\u00e0o ng\u00e2n s\u00e1ch v\u00e0 y\u00eau c\u1ea7u v\u1ec1 m\u1ee9c \u0111\u1ed9 nh\u1eadn di\u1ec7n th\u01b0\u01a1ng hi\u1ec7u c\u1ee7a doanh nghi\u1ec7p b\u1ea1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau-hoi-thuong-gap-FAQs\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 gi\u1ea3i \u0111\u00e1p cho c\u00e1c th\u1eafc m\u1eafc th\u01b0\u1eddng g\u1eb7p khi tri\u1ec3n khai <strong>c\u00e2u h\u1ecfi v\u1ec1 SSL \u0111a t\u00ean mi\u1ec1n<\/strong>:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Multi-Domain-SSL-ho-tro-bao-nhieu-ten-mien-toi-da\"><\/span>Multi Domain SSL h\u1ed7 tr\u1ee3 bao nhi\u00eau t\u00ean mi\u1ec1n t\u1ed1i \u0111a?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1ed1 l\u01b0\u1ee3ng t\u00ean mi\u1ec1n h\u1ed7 tr\u1ee3 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1eebng h\u00e3ng CA (Certificate Authority). Th\u00f4ng th\u01b0\u1eddng, m\u1ed9t ch\u1ee9ng ch\u1ec9 h\u1ed7 tr\u1ee3 m\u1eb7c \u0111\u1ecbnh 3-5 t\u00ean mi\u1ec1n. B\u1ea1n c\u00f3 th\u1ec3 mua th\u00eam c\u00e1c g\u00f3i SAN \u0111\u1ec3 m\u1edf r\u1ed9ng t\u1ed1i \u0111a l\u00ean 100 t\u00ean mi\u1ec1n (v\u1edbi Geotrust\/Symantec) ho\u1eb7c t\u1edbi 250 t\u00ean mi\u1ec1n (v\u1edbi Sectigo).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Multi-Domain-SSL-co-dung-cho-subdomain-khong\"><\/span>Multi Domain SSL c\u00f3 d\u00f9ng cho subdomain kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3. B\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 th\u00eam subdomain (v\u00ed d\u1ee5: shop.domain.com) v\u00e0o tr\u01b0\u1eddng SAN. Tuy nhi\u00ean, m\u1ed7i subdomain s\u1ebd \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 1 t\u00ean mi\u1ec1n trong t\u1ed5ng s\u1ed1 l\u01b0\u1ee3ng cho ph\u00e9p. N\u1ebfu b\u1ea1n c\u00f3 qu\u00e1 nhi\u1ec1u subdomain, h\u00e3y c\u00e2n nh\u1eafc d\u00f9ng Wildcard SSL.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Co-the-thay-doi-ten-mien-sau-khi-da-cai-dat-SSL-khong\"><\/span>C\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00ean mi\u1ec1n sau khi \u0111\u00e3 c\u00e0i \u0111\u1eb7t SSL kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3. \u0110\u00e2y l\u00e0 t\u00ednh n\u0103ng \u01b0u vi\u1ec7t c\u1ee7a Multi Domain SSL. B\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n quy tr\u00ecnh Re-issue (C\u1ea5p l\u1ea1i) \u0111\u1ec3 th\u00eam, s\u1eeda ho\u1eb7c x\u00f3a t\u00ean mi\u1ec1n trong danh s\u00e1ch SAN b\u1ea5t c\u1ee9 l\u00fac n\u00e0o trong th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c c\u1ee7a ch\u1ee9ng ch\u1ec9 m\u00e0 kh\u00f4ng m\u1ea5t th\u00eam ph\u00ed (tr\u1eeb khi b\u1ea1n mua th\u00eam s\u1ed1 l\u01b0\u1ee3ng SAN v\u01b0\u1ee3t g\u00f3i ban \u0111\u1ea7u).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Multi-Domain-SSL-co-an-toan-khong\"><\/span>Multi Domain SSL c\u00f3 an to\u00e0n kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ho\u00e0n to\u00e0n an to\u00e0n. Multi Domain SSL s\u1eed d\u1ee5ng c\u00f9ng chu\u1ea9n m\u00e3 h\u00f3a 256-bit v\u00e0 \u0111\u1ed9 d\u00e0i kh\u00f3a 2048-bit nh\u01b0 c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 \u0111\u01a1n l\u1ebb kh\u00e1c. M\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt kh\u00f4ng b\u1ecb suy gi\u1ea3m khi chia s\u1ebb tr\u00ean nhi\u1ec1u t\u00ean mi\u1ec1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Multi-Domain-SSL-co-ho-tro-thanh-dia-chi-mau-xanh-EV-khong\"><\/span>Multi Domain SSL c\u00f3 h\u1ed7 tr\u1ee3 thanh \u0111\u1ecba ch\u1ec9 m\u00e0u xanh (EV) kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd g\u00f3i Multi Domain EV SSL. Khi \u0111\u00f3, n\u1ebfu tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3, thanh \u0111\u1ecba ch\u1ec9 ho\u1eb7c th\u00f4ng tin ch\u1ee9ng ch\u1ec9 s\u1ebd hi\u1ec3n th\u1ecb t\u00ean doanh nghi\u1ec7p \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, \u00e1p d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n trong danh s\u00e1ch SAN.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi-ket\"><\/span>L\u1eddi k\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trong b\u1ed1i c\u1ea3nh chuy\u1ec3n \u0111\u1ed5i s\u1ed1, vi\u1ec7c s\u1edf h\u1eefu v\u00e0 v\u1eadn h\u00e0nh c\u00f9ng l\u00fac nhi\u1ec1u website l\u00e0 xu h\u01b0\u1edbng t\u1ea5t y\u1ebfu c\u1ee7a c\u00e1c doanh nghi\u1ec7p. <strong>Multi Domain SSL<\/strong> kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 b\u1ea3o m\u1eadt, m\u00e0 c\u00f2n l\u00e0 gi\u1ea3i ph\u00e1p qu\u1ea3n tr\u1ecb th\u00f4ng minh gi\u00fap t\u1ed1i \u01b0u h\u00f3a d\u00f2ng ti\u1ec1n v\u00e0 ngu\u1ed3n l\u1ef1c k\u1ef9 thu\u1eadt.<\/p>\n<p>Thay v\u00ec l\u1ea1c trong &#8220;ma tr\u1eadn&#8221; c\u1ee7a vi\u1ec7c qu\u1ea3n l\u00fd h\u00e0ng ch\u1ee5c ch\u1ee9ng ch\u1ec9 ri\u00eang l\u1ebb, vi\u1ec7c quy ho\u1ea1ch l\u1ea1i h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt v\u1ec1 m\u1ed9t m\u1ed1i v\u1edbi SAN\/UCC SSL l\u00e0 b\u01b0\u1edbc \u0111i chi\u1ebfn l\u01b0\u1ee3c c\u1ea7n thi\u1ebft. N\u1ebfu b\u1ea1n \u0111ang qu\u1ea3n l\u00fd t\u1eeb 3 website tr\u1edf l\u00ean, \u0111\u00e2y ch\u00ednh l\u00e0 th\u1eddi \u0111i\u1ec3m th\u00edch h\u1ee3p \u0111\u1ec3 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00f3m t\u1eaft n\u1ed9i dung: Multi Domain SSL (hay c\u00f2n g\u1ecdi l\u00e0 SAN SSL) l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt k\u1ef9 thu\u1eadt s\u1ed1 cho ph\u00e9p m\u1ed9t ch\u1ee9ng ch\u1ec9 duy nh\u1ea5t b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n ho\u00e0n to\u00e0n kh\u00e1c nhau. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u cho c\u00e1c doanh nghi\u1ec7p s\u1edf h\u1eefu nhi\u1ec1u website, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a<\/p>\n","protected":false},"author":11,"featured_media":39040,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-39036","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-website"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39036","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=39036"}],"version-history":[{"count":5,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39036\/revisions"}],"predecessor-version":[{"id":39104,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39036\/revisions\/39104"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/39040"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=39036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=39036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=39036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}