{"id":11601,"date":"2024-10-09T08:46:38","date_gmt":"2024-10-09T01:46:38","guid":{"rendered":"https:\/\/cloud.z.com\/vn\/?p=11601"},"modified":"2024-09-12T08:47:19","modified_gmt":"2024-09-12T01:47:19","slug":"ban-ghi-tlsa","status":"publish","type":"post","link":"https:\/\/cloud.z.com\/vn\/en\/news\/ban-ghi-tlsa\/","title":{"rendered":"C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n ghi TLSA v\u00e0 v\u00ed d\u1ee5 m\u1ed9t b\u1ea3n ghi \u0111i\u1ec3n h\u00ecnh"},"content":{"rendered":"<p>TLSA kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho website m\u00e0 c\u00f2n c\u00f3 th\u1ec3 tri\u1ec3n khai cho c\u00e1c m\u00e1y ch\u1ee7 email nh\u1eb1m b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o. Tri\u1ec3n khai TLSA gi\u00fap x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 SSL\/TLS c\u1ee7a m\u00e1y ch\u1ee7 email. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00f4ng tin chi ti\u1ebft v\u1ec1 TLSA, h\u00e3y xem qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y c\u1ee7a <a href=\"https:\/\/cloud.z.com\/vn\/\">Z.com<\/a> nh\u00e9.<\/p>\n<p><cite style=\"margin: 0px; background-color: #0066b2; color: #fff; border-top-left-radius: 2px; border-top-right-radius: 2px; font-size: 19px; padding: 12px 20px; font-weight: bold; display: block; font-style: normal;\">B\u1ea1n \u0111ang mu\u1ed1n x\u00e2y d\u1ef1ng m\u1ed9t trang web c\u1ee7a ri\u00eang m\u00ecnh<\/cite><\/p>\n<div class=\"textwidget\" style=\"padding: 20px; background: #70c2e280;\">\u0110\u0103ng k\u00fd ngay t\u00ean mi\u1ec1n th\u01b0\u01a1ng hi\u1ec7u t\u1ea1i Tenten.vn ch\u1ec9 v\u1edbi 2 c\u00fa click chu\u1ed9t: <strong>Ki\u1ec3m tra s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a t\u00ean mi\u1ec1n: Nh\u1eadp t\u00ean mi\u1ec1n v\u00e0 nh\u1ea5n \"ki\u1ec3m tra\".<\/strong> <span style=\"color: #ffff00;\"><a class=\"btn_combi_sv\" style=\"font-weight: bold; color: #ffff00; padding: 8px 26px 8px 26px; font-size: 20px; line-height: 30px; border-radius: 56px; text-shadow: none; background: #0066b2; display: table; margin: 0px auto;\" href=\"https:\/\/tenten.vn\/vi\/bang-gia-ten-mien?code=knjcpEfWoTSzUNMw&amp;idCampaign=3080\">B\u1ea2NG GI\u00c1 T\u00caN MI\u1ec0N M\u1edaI NH\u1ea4T<\/a><\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/bit.ly\/3QYbaqa\">V\u00e0o nh\u00f3m Zalo nh\u1eadn \u01b0u \u0111\u00e3i t\u00ean mi\u1ec1n t\u1ea1i \u0111\u00e2y<\/a><\/li>\n<li>Hotline: (024) 71 089 999<\/li>\n<li>Email: info@tenten.vn<\/li>\n<\/ul>\n<\/div>\n<h2><strong>B\u1ea3n ghi TLSA l\u00e0 g\u00ec?<\/strong><\/h2>\n<p>TLSA (Transport Layer Security Authentication) l\u00e0 m\u1ed9t lo\u1ea1i b\u1ea3n ghi DNS (Domain Name System) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c c\u00e1c ch\u1ee9ng ch\u1ec9 b\u1ea3o m\u1eadt SSL\/TLS, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c k\u1ebft n\u1ed1i m\u1ea1ng an to\u00e0n. TLSA l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt DNSSEC (Domain Name System Security Extensions), gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c th\u00f4ng tin truy\u1ec1n qua m\u1ea1ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c v\u00e0 b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o.<\/p>\n<p>Trong m\u1ed9t k\u1ebft n\u1ed1i SSL\/TLS truy\u1ec1n th\u1ed1ng, c\u00e1c ch\u1ee9ng ch\u1ec9 b\u1ea3o m\u1eadt c\u1ee7a m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c c\u1ea5p b\u1edfi c\u00e1c t\u1ed5 ch\u1ee9c ph\u00e1t h\u00e0nh ch\u1ee9ng ch\u1ec9 (Certificate Authorities - CA) v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m tra b\u1edfi c\u00e1c tr\u00ecnh duy\u1ec7t ho\u1eb7c \u1ee9ng d\u1ee5ng. Tuy nhi\u00ean, c\u01a1 ch\u1ebf n\u00e0y kh\u00f4ng ho\u00e0n to\u00e0n an to\u00e0n, v\u00ec k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 gi\u1ea3 m\u1ea1o ho\u1eb7c chi\u1ebfm \u0111o\u1ea1t c\u00e1c ch\u1ee9ng ch\u1ec9 t\u1eeb c\u00e1c t\u1ed5 ch\u1ee9c CA kh\u00f4ng \u0111\u00e1ng tin c\u1eady.<\/p>\n<div id=\"attachment_24946\" style=\"width: 660px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-24946\" loading=\"lazy\" class=\"wp-image-24946\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/09\/word-image-24939-2-1.png\" alt=\"B\u1ea3n ghi TLSA l\u00e0 g\u00ec?\" width=\"650\" height=\"177\" \/><p id=\"caption-attachment-24946\" class=\"wp-caption-text\">B\u1ea3n ghi TLSA l\u00e0 g\u00ec?<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>B\u1ea3n ghi TLSA ra \u0111\u1eddi \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, b\u1eb1ng c\u00e1ch cho ph\u00e9p ch\u1ee7 s\u1edf h\u1eefu t\u00ean mi\u1ec1n l\u01b0u tr\u1eef th\u00f4ng tin ch\u1ee9ng ch\u1ec9 tr\u1ef1c ti\u1ebfp trong h\u1ec7 th\u1ed1ng DNS c\u1ee7a m\u00ecnh. Nh\u1edd v\u00e0o \u0111\u00f3, tr\u00ecnh duy\u1ec7t ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 so s\u00e1nh ch\u1ee9ng ch\u1ec9 nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb m\u00e1y ch\u1ee7 v\u1edbi th\u00f4ng tin trong b\u1ea3n ghi TLSA \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh h\u1ee3p l\u1ec7.<\/p>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng TLSA gi\u00fap n\u00e2ng cao m\u1ee9c \u0111\u1ed9 an to\u00e0n cho c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn, ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng man-in-the-middle (MITM) - m\u1ed9t d\u1ea1ng t\u1ea5n c\u00f4ng m\u00e0 k\u1ebb x\u1ea5u c\u00f3 th\u1ec3 can thi\u1ec7p v\u00e0o k\u1ebft n\u1ed1i gi\u1eefa m\u00e1y ch\u1ee7 v\u00e0 ng\u01b0\u1eddi d\u00f9ng. B\u1ea3n ghi TLSA c\u0169ng h\u1ed7 tr\u1ee3 c\u00e1c doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng, \u0111\u1ea3m b\u1ea3o an to\u00e0n cho qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i th\u00f4ng tin nh\u1ea1y c\u1ea3m qua m\u1ea1ng.<\/p>\n<h2><strong>C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n ghi TLSA<\/strong><\/h2>\n<p>C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n ghi TLSA g\u1ed3m 3 ph\u1ea7n<\/p>\n<h3><strong>C\u1ed5ng (Port number): S\u1ed1 c\u1ed5ng m\u00e0 m\u00e1y ch\u1ee7 TLS l\u1eafng nghe<\/strong><\/h3>\n<p>C\u1ed5ng trong b\u1ea3n ghi TLSA l\u00e0 s\u1ed1 c\u1ed5ng m\u00e0 m\u00e1y ch\u1ee7 TLS s\u1eed d\u1ee5ng \u0111\u1ec3 l\u1eafng nghe v\u00e0 ti\u1ebfp nh\u1eadn c\u00e1c k\u1ebft n\u1ed1i t\u1eeb ph\u00eda kh\u00e1ch h\u00e0ng. Trong giao th\u1ee9c HTTPS (HyperText Transfer Protocol Secure), c\u1ed5ng m\u1eb7c \u0111\u1ecbnh l\u00e0 443, v\u00e0 \u0111\u00e2y c\u0169ng l\u00e0 c\u1ed5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t khi thi\u1ebft l\u1eadp b\u1ea3n ghi TLSA cho c\u00e1c trang web an to\u00e0n. Tuy nhi\u00ean, m\u00e1y ch\u1ee7 TLS c\u00f3 th\u1ec3 l\u1eafng nghe tr\u00ean nhi\u1ec1u c\u1ed5ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 25 (SMTP), 110 (POP3) ho\u1eb7c 993 (IMAP).<\/p>\n<p>Vi\u1ec7c ch\u1ec9 \u0111\u1ecbnh s\u1ed1 c\u1ed5ng trong b\u1ea3n ghi TLSA gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n ghi ch\u1ec9 \u00e1p d\u1ee5ng cho d\u1ecbch v\u1ee5 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u1ed5ng c\u1ee5 th\u1ec3 \u0111\u00f3. N\u1ebfu m\u1ed9t m\u00e1y ch\u1ee7 TLS ch\u1ea1y nhi\u1ec1u d\u1ecbch v\u1ee5 tr\u00ean c\u00e1c c\u1ed5ng kh\u00e1c nhau, c\u1ea7n thi\u1ebft l\u1eadp b\u1ea3n ghi TLSA ri\u00eang cho t\u1eebng c\u1ed5ng.<\/p>\n<div id=\"attachment_24947\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-24947\" loading=\"lazy\" class=\"wp-image-24947\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/09\/word-image-24939-3-1.jpeg\" alt=\"C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n ghi TLSA g\u1ed3m 3 ph\u1ea7n\" width=\"1200\" height=\"630\" \/><p id=\"caption-attachment-24947\" class=\"wp-caption-text\">C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n ghi TLSA g\u1ed3m 3 ph\u1ea7n<\/p><\/div>\n<h3><strong>Giao th\u1ee9c (Protocol): Giao th\u1ee9c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng (udp, tcp, sctp)<\/strong><\/h3>\n<p>Giao th\u1ee9c l\u00e0 ph\u01b0\u01a1ng th\u1ee9c m\u00e0 m\u00e1y ch\u1ee7 TLS s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u gi\u1eefa m\u00e1y ch\u1ee7 v\u00e0 kh\u00e1ch h\u00e0ng. C\u00e1c giao th\u1ee9c ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ea3n ghi TLSA l\u00e0 TCP (Transmission Control Protocol) v\u00e0 UDP (User Datagram Protocol).<\/p>\n<p>TCP l\u00e0 giao th\u1ee9c c\u00f3 t\u00ednh ch\u1ea5t tin c\u1eady, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c d\u1ecbch v\u1ee5 \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u1eafc ch\u1eafn trong vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u nh\u01b0 HTTP (Web), SMTP (Email) v\u00e0 IMAP (Email). UDP, m\u1eb7t kh\u00e1c, l\u00e0 giao th\u1ee9c kh\u00f4ng k\u1ebft n\u1ed1i v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c d\u1ecbch v\u1ee5 y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 cao nh\u01b0ng kh\u00f4ng c\u1ea7n \u0111\u1ed9 tin c\u1eady tuy\u1ec7t \u0111\u1ed1i, nh\u01b0 DNS ho\u1eb7c streaming media.<\/p>\n<p>Ch\u1ec9 \u0111\u1ecbnh giao th\u1ee9c gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n ghi TLSA ch\u1ec9 \u00e1p d\u1ee5ng cho d\u1ecbch v\u1ee5 ch\u1ea1y tr\u00ean giao th\u1ee9c c\u1ee5 th\u1ec3 \u0111\u00f3. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba vi\u1ec7c nh\u1ea7m l\u1eabn gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau s\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c kh\u00e1c nhau tr\u00ean c\u00f9ng m\u1ed9t c\u1ed5ng.<\/p>\n<h3><a id=\"post-24939-_aew9xpxrom6t\"><\/a><strong>Hostname: Hostname c\u1ee7a m\u00e1y ch\u1ee7 TLS<\/strong><\/h3>\n<p>Hostname l\u00e0 t\u00ean mi\u1ec1n ho\u1eb7c t\u00ean m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi d\u1ecbch v\u1ee5 TLS. Trong b\u1ea3n ghi TLSA, t\u00ean m\u00e1y ch\u1ee7 th\u01b0\u1eddng l\u00e0 m\u1ed9t Fully Qualified Domain Name (FQDN), ch\u1eb3ng h\u1ea1n nh\u01b0 www.example.com.<\/p>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng hostname trong b\u1ea3n ghi TLSA gi\u00fap x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c m\u00e1y ch\u1ee7 n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c th\u00f4ng qua ch\u1ee9ng ch\u1ec9 SSL\/TLS. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n ghi TLSA ch\u1ec9 \u00e1p d\u1ee5ng cho m\u00e1y ch\u1ee7 TLS c\u1ee5 th\u1ec3, gi\u00fap ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o ho\u1eb7c nh\u1ea7m l\u1eabn gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 trong c\u00f9ng m\u1ed9t t\u00ean mi\u1ec1n.<\/p>\n<p>Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, m\u1ed9t t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u m\u00e1y ch\u1ee7 cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau. Do \u0111\u00f3, c\u1ea7n thi\u1ebft l\u1eadp c\u00e1c b\u1ea3n ghi TLSA ri\u00eang bi\u1ec7t cho t\u1eebng hostname n\u1ebfu c\u00e1c m\u00e1y ch\u1ee7 n\u00e0y s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 SSL\/TLS kh\u00e1c nhau.<\/p>\n<p><cite style=\"margin: 0px; background-color: #0066b2; color: #fff; border-top-left-radius: 2px; border-top-right-radius: 2px; font-size: 19px; padding: 12px 20px; font-weight: bold; display: block; font-style: normal;\">B\u1ea1n \u0111ang mu\u1ed1n x\u00e2y d\u1ef1ng m\u1ed9t trang web c\u1ee7a ri\u00eang m\u00ecnh<\/cite><\/p>\n<div class=\"textwidget\" style=\"padding: 20px; background: #70c2e280;\">\u0110\u0103ng k\u00fd ngay t\u00ean mi\u1ec1n th\u01b0\u01a1ng hi\u1ec7u t\u1ea1i Tenten.vn ch\u1ec9 v\u1edbi 2 c\u00fa click chu\u1ed9t: <strong>Ki\u1ec3m tra s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a t\u00ean mi\u1ec1n: Nh\u1eadp t\u00ean mi\u1ec1n v\u00e0 nh\u1ea5n \"ki\u1ec3m tra\".<\/strong> <span style=\"color: #ffff00;\"><a class=\"btn_combi_sv\" style=\"font-weight: bold; color: #ffff00; padding: 8px 26px 8px 26px; font-size: 20px; line-height: 30px; border-radius: 56px; text-shadow: none; background: #0066b2; display: table; margin: 0px auto;\" href=\"https:\/\/tenten.vn\/vi\/bang-gia-ten-mien?code=knjcpEfWoTSzUNMw&amp;idCampaign=3080\">B\u1ea2NG GI\u00c1 T\u00caN MI\u1ec0N M\u1edaI NH\u1ea4T<\/a><\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/bit.ly\/3QYbaqa\">V\u00e0o nh\u00f3m Zalo nh\u1eadn \u01b0u \u0111\u00e3i t\u00ean mi\u1ec1n t\u1ea1i \u0111\u00e2y<\/a><\/li>\n<li>Hotline: (024) 71 089 999<\/li>\n<li>Email: info@tenten.vn<\/li>\n<\/ul>\n<\/div>\n<h2><strong>V\u00ed d\u1ee5 v\u1ec1 b\u1ea3n ghi TLSA \u0111i\u1ec3n h\u00ecnh<\/strong><\/h2>\n<table>\n<thead>\n<tr>\n<th>\n<p><strong>Host<\/strong><\/p>\n<\/th>\n<th>\n<p><strong>Type<\/strong><\/p>\n<\/th>\n<th>\n<p><strong>Points to:<\/strong><\/p>\n<\/th>\n<th>\n<p><strong>TTL<\/strong><\/p>\n<\/th>\n<\/tr>\n<tr>\n<th>\n<p>_port._protocol.host.domain.com<\/p>\n<\/th>\n<th>\n<p>TLSA<\/p>\n<\/th>\n<th>\n<p>0 0 0 00000000000000000000000<\/p>\n<\/th>\n<th>\n<p>1 Hour<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<\/table>\n<ul>\n<li><strong>Type<\/strong>: TLSA<\/li>\n<li><strong>TTL<\/strong>: 1 Hour<\/li>\n<li><strong>Host<\/strong>: _port._protocol e.g.: _100._tcp*<\/li>\n<li><strong>Usage<\/strong>: ch\u1ec9 \u0111\u1ecbnh li\u00ean k\u1ebft \u0111\u01b0\u1ee3c cung c\u1ea5p s\u1ebd s\u1eed d\u1ee5ng \u0111\u1ec3 so s\u00e1nh kh\u1edbp v\u1edbi ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong TLS handshake.<\/li>\n<\/ul>\n<p>The values are numeric (0, 1, 2, 3) <br \/>0 = Certificate Authority Constraint. <br \/>1 = Service Certificate Constraint. <br \/>2 = Trust Anchor Assertion. <br \/>3 = Domain Issued Certificate.<\/p>\n<ul>\n<li><strong>Selector<\/strong>: ch\u1ec9 \u0111\u1ecbnh 1 ph\u1ea7n c\u1ee7a ch\u1ee9ng ch\u1ec9 TLS \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y b\u1edfi m\u00e1y ch\u1ee7 s\u1ebd kh\u1edbp v\u1edbi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c li\u00ean k\u1ebft.<\/li>\n<\/ul>\n<p>numeric values (0, 1) <br \/>0 = Full Certificate. <br \/>1 = Subject Public Key.<\/p>\n<ul>\n<li><strong>Matching type<\/strong>: ch\u1ec9 \u0111\u1ecbnh c\u00e1ch th\u1ee9c ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y.<\/li>\n<\/ul>\n<p>numeric values (0, 1, 2) <br \/>0 = No hash <br \/>1 = SHA-256 <br \/>2 = SHA-512<\/p>\n<ul>\n<li><strong>Points to:<\/strong> Hash value<\/li>\n<\/ul>\n<div id=\"attachment_24948\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-24948\" loading=\"lazy\" class=\"wp-image-24948\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/09\/word-image-24939-4-1.jpeg\" alt=\"V\u00ed d\u1ee5 v\u1ec1 b\u1ea3n ghi TLSA \u0111i\u1ec3n h\u00ecnh\" width=\"1200\" height=\"630\" \/><p id=\"caption-attachment-24948\" class=\"wp-caption-text\">V\u00ed d\u1ee5 v\u1ec1 b\u1ea3n ghi TLSA \u0111i\u1ec3n h\u00ecnh<\/p><\/div>\n<p>&nbsp;<\/p>\n<h2><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd v\u1ec1 b\u1ea3n ghi TLSA<\/strong><\/h2>\n<ul>\n<li>Khi c\u1ea5u h\u00ecnh b\u1ea3n ghi TLSA, c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ee9ng ch\u1ec9 TLS\/SSL c\u1ee7a m\u00e1y ch\u1ee7 kh\u1edbp ho\u00e0n to\u00e0n v\u1edbi th\u00f4ng tin \u0111\u01b0\u1ee3c ghi trong b\u1ea3n ghi. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m vi\u1ec7c ki\u1ec3m tra c\u00e1c th\u00f4ng s\u1ed1 nh\u01b0 SHA-256 ho\u1eb7c SHA-1 hash c\u1ee7a ch\u1ee9ng ch\u1ec9, \u0111\u1ec3 x\u00e1c th\u1ef1c r\u1eb1ng ch\u00fang kh\u00f4ng b\u1ecb thay \u0111\u1ed5i ho\u1eb7c gi\u1ea3 m\u1ea1o.<\/li>\n<li>B\u1ea3n ghi TLSA c\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt k\u1ecbp th\u1eddi khi c\u00f3 thay \u0111\u1ed5i trong ch\u1ee9ng ch\u1ec9 TLS\/SSL c\u1ee7a m\u00e1y ch\u1ee7. N\u1ebfu ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c thay \u0111\u1ed5i ho\u1eb7c gia h\u1ea1n, b\u1ea1n ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n ghi TLSA c\u0169ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u1ec3 ph\u1ea3n \u00e1nh nh\u1eefng thay \u0111\u1ed5i n\u00e0y. N\u1ebfu kh\u00f4ng, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i l\u1ed7i x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 v\u00e0 m\u1ea5t k\u1ebft n\u1ed1i an to\u00e0n.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o r\u1eb1ng s\u1ed1 c\u1ed5ng v\u00e0 giao th\u1ee9c \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong b\u1ea3n ghi TLSA kh\u1edbp v\u1edbi c\u00e1c c\u1ea5u h\u00ecnh c\u1ee7a d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7. N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng nhi\u1ec1u c\u1ed5ng ho\u1eb7c giao th\u1ee9c kh\u00e1c nhau cho c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nhau, h\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng b\u1ea3n ghi TLSA t\u01b0\u01a1ng \u1ee9ng \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh cho t\u1eebng d\u1ecbch v\u1ee5 c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n<div id=\"attachment_24949\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-24949\" loading=\"lazy\" class=\"wp-image-24949\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/09\/word-image-24939-5-1.jpeg\" alt=\"M\u1ed9t s\u1ed1 l\u01b0u \u00fd v\u1ec1 b\u1ea3n ghi TLSA\" width=\"1200\" height=\"630\" \/><p id=\"caption-attachment-24949\" class=\"wp-caption-text\">M\u1ed9t s\u1ed1 l\u01b0u \u00fd v\u1ec1 b\u1ea3n ghi TLSA<\/p><\/div>\n<ul>\n<li>B\u1ea3n ghi TLSA c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hash kh\u00e1c nhau \u0111\u1ec3 x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9, bao g\u1ed3m SHA-256 v\u00e0 SHA-1. Tuy nhi\u00ean, SHA-1 \u0111\u00e3 tr\u1edf n\u00ean k\u00e9m an to\u00e0n h\u01a1n v\u00e0 th\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng. N\u00ean \u01b0u ti\u00ean s\u1eed d\u1ee5ng SHA-256 cho t\u00ednh b\u1ea3o m\u1eadt cao h\u01a1n.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n ghi TLSA \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7i c\u00fa ph\u00e1p. M\u1ed9t l\u1ed7i nh\u1ecf trong c\u1ea5u h\u00ecnh c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i x\u00e1c th\u1ef1c ho\u1eb7c l\u00e0m m\u1ea5t k\u1ebft n\u1ed1i an to\u00e0n. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra DNS ho\u1eb7c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 x\u00e1c th\u1ef1c c\u1ea5u h\u00ecnh c\u1ee7a b\u1ea1n.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n ghi TLSA \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7i c\u00fa ph\u00e1p. M\u1ed9t l\u1ed7i nh\u1ecf trong c\u1ea5u h\u00ecnh c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i x\u00e1c th\u1ef1c ho\u1eb7c l\u00e0m m\u1ea5t k\u1ebft n\u1ed1i an to\u00e0n. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra DNS ho\u1eb7c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 x\u00e1c th\u1ef1c c\u1ea5u h\u00ecnh c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<h2><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n<p>C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3n ghi TLSA bao g\u1ed3m ba th\u00e0nh ph\u1ea7n ch\u00ednh: C\u1ed5ng, Giao th\u1ee9c v\u00e0 Hostname. Vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 SSL\/TLS di\u1ec5n ra ch\u00ednh x\u00e1c, b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 ng\u0103n ng\u1eeba c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n t\u1eeb b\u00ean ngo\u00e0i. Khi c\u1ea5u h\u00ecnh b\u1ea3n ghi TLSA, c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c th\u00f4ng s\u1ed1 n\u00e0y kh\u1edbp ch\u00ednh x\u00e1c v\u1edbi d\u1ecbch v\u1ee5 v\u00e0 m\u00e1y ch\u1ee7 TLS \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c. \u0110\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n d\u1ecbch v\u1ee5 t\u00ean mi\u1ec1n uy t\u00edn, gi\u00e1 r\u1ebb hay li\u00ean h\u1ec7 hay v\u1edbi Tenten.<\/p>\n<h4><strong>B\u00e0i li\u00ean quan<\/strong><\/h4>\n<ul>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/domain\/\">Domain l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n t\u1eeb A-Z<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-la-gi\/\">T\u00ean mi\u1ec1n l\u00e0 g\u00ec? Nh\u1eefng l\u01b0u \u00fd khi s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 t\u00ean mi\u1ec1n<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-vn\/\">T\u00ean mi\u1ec1n vn: L\u1ee3i \u00edch &amp; \u01afu \u0111i\u1ec3m c\u1ee7a t\u00ean mi\u1ec1n Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-vn-2\/\">T\u00ean mi\u1ec1n .vn l\u00e0 g\u00ec? N\u00ean mua t\u00ean mi\u1ec1n .vn \u1edf \u0111\u00e2u r\u1ebb nh\u1ea5t?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-com-vn\/\">T\u00ean mi\u1ec1n .com.vn l\u00e0 g\u00ec? N\u00ean ch\u1ecdn t\u00ean mi\u1ec1n .com.vn hay .vn?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-edu-vn\/\">T\u00ean mi\u1ec1n Edu.vn l\u00e0 c\u00e1nh c\u1ed5ng truy\u1ec1n t\u1ea3i tri th\u1ee9c tr\u1ef1c tuy\u1ebfn<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-biz-vn-2\/\">\u00dd ngh\u0129a t\u00ean mi\u1ec1n biz vn v\u00e0 l\u1ee3i th\u1ebf khi d\u00f9ng .biz.vn cho doanh nghi\u1ec7p<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-name-vn\/\">T\u1eeb A-Z v\u1ec1 t\u00ean mi\u1ec1n name.vn, \u0111\u0103ng k\u00fd name.vn \u1edf \u0111\u00e2u r\u1ebb v\u00e0 uy t\u00edn?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-ai-vn\/\">T\u00ean mi\u1ec1n ai.vn l\u00e0 g\u00ec? Mang l\u1ea1i l\u1ee3i \u00edch g\u00ec khi s\u1eed d\u1ee5ng?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-id-vn\/\">T\u00ean mi\u1ec1n id.vn l\u00e0 g\u00ec? L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng t\u00ean mi\u1ec1n id.vn<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-io-vn\/\">T\u00ean mi\u1ec1n io.vn l\u00e0 g\u00ec? Mang l\u1ea1i l\u1ee3i \u00edch g\u00ec khi s\u1eed d\u1ee5ng?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-net\/\">T\u00ean mi\u1ec1n .net l\u00e0 g\u00ec? L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng t\u00ean mi\u1ec1n .net gi\u00e1 r\u1ebb<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-info\/\">T\u00ean mi\u1ec1n .info l\u00e0 g\u00ec? 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N\u00ean ch\u1ecdn \u0111\u01a1n v\u1ecb n\u00e0o?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/dau-tu-ten-mien\/\">B\u00ed quy\u1ebft \u0111\u1ea7u t\u01b0 t\u00ean mi\u1ec1n t\u1ea1o n\u00ean gi\u00e1 tr\u1ecb cao<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/cach-dang-ky-ten-mien-mien-phi\/\">C\u00e1ch \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n mi\u1ec5n ph\u00ed: \u0110\u01a1n gi\u1ea3n, ai c\u0169ng l\u00e0m \u0111\u01b0\u1ee3c<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/mua-ban-ten-mien\/\">H\u01b0\u1edbng d\u1eabn mua b\u00e1n t\u00ean mi\u1ec1n chi ti\u1ebft cho ng\u01b0\u1eddi m\u1edbi<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/bao-mat-ten-mien-la-gi\/\">B\u1ea3o m\u1eadt t\u00ean mi\u1ec1n l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn b\u1ea3o m\u1eadt t\u00ean mi\u1ec1n t\u1eeb A-Z<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-1-ky-tu\/\">C\u00e1ch mua T\u00ean mi\u1ec1n 1 k\u00fd t\u1ef1: \u0110\u1ed9c \u0111\u00e1o v\u00e0 \u0111\u1eb3ng c\u1ea5p<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-gia-re\/\">H\u01b0\u1edbng d\u1eabn mua t\u00ean mi\u1ec1n gi\u00e1 r\u1ebb t\u1ea1i Tenten cho ng\u01b0\u1eddi m\u1edbi<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ban-ghi-ten-mien\/\">M\u1ecdi \u0111i\u1ec1u c\u1ea7n bi\u1ebft v\u1ec1 c\u00e1c b\u1ea3n ghi t\u00ean mi\u1ec1n, \u0111\u1ecdc ngay nh\u00e9!<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/tro-ten-mien\/\">H\u01b0\u1edbng d\u1eabn tr\u1ecf t\u00ean mi\u1ec1n v\u1ec1 Ladipage, tr\u1ecf t\u00ean mi\u1ec1n v\u1ec1 Hosting<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/quyen-so-huu-ten-mien\/\">H\u01b0\u1edbng d\u1eabn x\u00e1c minh quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n chi ti\u1ebft nh\u1ea5t<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/doi-ten-mien\/\">\u0110\u1ed5i t\u00ean mi\u1ec1n website c\u1ea7n l\u01b0u \u00fd \u0111i\u1ec1u g\u00ec? C\u1ea7n chu\u1ea9n b\u1ecb g\u00ec khi \u0111\u1ed5i t\u00ean mi\u1ec1n?<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/duy-tri-ten-mien\/\">Kh\u00f4ng duy tr\u00ec t\u00ean mi\u1ec1n c\u00f3 h\u1eadu qu\u1ea3 g\u00ec? B\u1ea3ng ph\u00ed duy tr\u00ec t\u00ean mi\u1ec1n c\u1ef1c r\u1ebb<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TLSA kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho website m\u00e0 c\u00f2n c\u00f3 th\u1ec3 tri\u1ec3n khai cho c\u00e1c m\u00e1y ch\u1ee7 email nh\u1eb1m b\u1ea3o v\u1ec7 k\u1ebft n\u1ed1i v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o. Tri\u1ec3n khai TLSA gi\u00fap x\u00e1c th\u1ef1c ch\u1ee9ng...<\/p>\n","protected":false},"author":28,"featured_media":11602,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[177,83],"tags":[],"jetpack_featured_media_url":"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/09\/ban-ghi-tlsa.jpeg","_links":{"self":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11601"}],"collection":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/comments?post=11601"}],"version-history":[{"count":3,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11601\/revisions"}],"predecessor-version":[{"id":11630,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11601\/revisions\/11630"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media\/11602"}],"wp:attachment":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media?parent=11601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/categories?post=11601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/tags?post=11601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}