{"id":11621,"date":"2024-10-04T08:27:09","date_gmt":"2024-10-04T01:27:09","guid":{"rendered":"https:\/\/cloud.z.com\/vn\/?p=11621"},"modified":"2024-09-12T08:34:30","modified_gmt":"2024-09-12T01:34:30","slug":"dnssec","status":"publish","type":"post","link":"https:\/\/cloud.z.com\/vn\/en\/news\/dnssec\/","title":{"rendered":"T\u1eeb A-Z v\u1ec1 DNSSEC, gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt cho h\u1ec7 th\u1ed1ng DNS"},"content":{"rendered":"<p>DNSSEC (Domain Name System Security Extensions) l\u00e0 m\u1ed9t b\u1ed9 m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng DNS kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u01b0 DNS spoofing v\u00e0 cache poisoning. B\u1eb1ng c\u00e1ch th\u00eam c\u00e1c l\u1edbp x\u00e1c th\u1ef1c v\u00e0o c\u00e1c b\u1ea3n ghi DNS, DNSSEC gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c ph\u1ea3n h\u1ed3i DNS \u0111\u1ebfn t\u1eeb ngu\u1ed3n \u0111\u00e1ng tin c\u1eady v\u00e0 kh\u00f4ng b\u1ecb thay \u0111\u1ed5i. Xem ngay b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y c\u1ee7a <a href=\"https:\/\/cloud.z.com\/vn\/\">Z.com<\/a> \u0111\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 Domain Name System Security Extensions nh\u00e9.<\/p>\n<div class=\"tg_wrap_cbsv tg_wrap_cbsv_blue\" style=\"margin: 20px 0px; border-radius: 4px; border: 2px solid #0066b2;\"><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<\/div>\n<h2><strong>DNSSEC l\u00e0 g\u00ec?<\/strong><\/h2>\n<p>DNSSEC (Domain Name System Security Extensions) l\u00e0 m\u1ed9t b\u1ed9 m\u1edf r\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (DNS), \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m t\u0103ng c\u01b0\u1eddng t\u00ednh b\u1ea3o m\u1eadt cho c\u00e1c b\u1ea3n ghi DNS. B\u1ea3n ch\u1ea5t c\u1ee7a DNSSEC l\u00e0 x\u00e1c th\u1ef1c c\u00e1c b\u1ea3n ghi DNS \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb m\u00e1y ch\u1ee7 DNS \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng b\u1ecb thay \u0111\u1ed5i ho\u1eb7c gi\u1ea3 m\u1ea1o.<\/p>\n<p>DNS th\u00f4ng th\u01b0\u1eddng c\u00f3 m\u1ed9t l\u1ed7 h\u1ed5ng l\u1edbn v\u1ec1 b\u1ea3o m\u1eadt v\u00ec n\u00f3 kh\u00f4ng c\u00f3 c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c ngu\u1ed3n g\u1ed1c c\u1ee7a c\u00e1c b\u1ea3n ghi, \u0111i\u1ec1u n\u00e0y khi\u1ebfn n\u00f3 d\u1ec5 d\u00e0ng tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS cache poisoning.<\/p>\n<p>DNSSEC gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c ch\u1eef k\u00fd s\u1ed1 v\u00e0o c\u00e1c b\u1ea3n ghi DNS. Khi m\u1ed9t b\u1ea3n ghi DNS \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u, DNSSEC s\u1ebd s\u1eed d\u1ee5ng c\u00e1c ch\u1eef k\u00fd s\u1ed1 \u0111\u1ec3 x\u00e1c th\u1ef1c t\u00ednh ch\u00ednh x\u00e1c v\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a b\u1ea3n ghi, \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 kh\u00f4ng b\u1ecb thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i.<\/p>\n<div id=\"attachment_25028\" style=\"width: 899px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25028\" loading=\"lazy\" class=\"wp-image-25028\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/09\/word-image-25026-2.png\" alt=\"DNSSEC l\u00e0 g\u00ec\" width=\"889\" height=\"595\" \/><p id=\"caption-attachment-25028\" class=\"wp-caption-text\">DNSSEC l\u00e0 g\u00ec<\/p><\/div>\n<h2><strong>T\u1ea7m quan tr\u1ecdng c\u1ee7a DNSSEC<\/strong><\/h2>\n<p>Giao th\u1ee9c DNS th\u00f4ng th\u01b0\u1eddng kh\u00f4ng c\u00f3 c\u00f4ng c\u1ee5 \u0111\u1ec3 x\u00e1c th\u1ef1c ngu\u1ed3n d\u1eef li\u1ec7u, d\u1eabn \u0111\u1ebfn nguy c\u01a1 d\u1eef li\u1ec7u DNS b\u1ecb gi\u1ea3 m\u1ea1o v\u00e0 b\u1ecb l\u00e0m sai l\u1ec7ch. C\u00f4ng ngh\u1ec7 b\u1ea3o m\u1eadt m\u1edbi DNSSEC \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 tri\u1ec3n khai \u0111\u1ec3 h\u1ed7 tr\u1ee3 cho DNS b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c nguy c\u01a1 n\u00e0y, cung c\u1ea5p c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 DNS v\u00e0 x\u00e1c th\u1ef1c cho t\u1eebng zone d\u1eef li\u1ec7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o to\u00e0n v\u1eb9n d\u1eef li\u1ec7u, c\u1ee5 th\u1ec3:<\/p>\n<h3><strong>B\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS<\/strong><\/h3>\n<p>T\u1ea5n c\u00f4ng DNS cache poisoning (l\u00e0m nhi\u1ec5m \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m DNS) l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng th\u1ee9c ph\u1ed5 bi\u1ebfn m\u00e0 k\u1ebb t\u1ea5n c\u00f4ng s\u1eed d\u1ee5ng \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng t\u1eeb trang web h\u1ee3p ph\u00e1p \u0111\u1ebfn m\u1ed9t trang web gi\u1ea3 m\u1ea1o. Khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1ed9t t\u00ean mi\u1ec1n h\u1ee3p ph\u00e1p, h\u1ec7 th\u1ed1ng DNS th\u00f4ng th\u01b0\u1eddng s\u1ebd d\u1ecbch t\u00ean mi\u1ec1n \u0111\u00f3 th\u00e0nh \u0111\u1ecba ch\u1ec9 IP c\u1ee7a trang web t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<p>Tuy nhi\u00ean, n\u1ebfu m\u00e1y ch\u1ee7 DNS b\u1ecb nhi\u1ec5m \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 IP m\u00e0 t\u00ean mi\u1ec1n ch\u1ec9 \u0111\u1ebfn. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng h\u1ec1 hay bi\u1ebft m\u00ecnh \u0111\u00e3 b\u1ecb chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn m\u1ed9t trang web gi\u1ea3 m\u1ea1o do hacker \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<p>V\u1edbi DNSSEC, c\u00e1c b\u1ea3n ghi DNS s\u1ebd \u0111\u01b0\u1ee3c k\u00fd s\u1ed1, gi\u00fap h\u1ec7 th\u1ed1ng DNS c\u00f3 th\u1ec3 x\u00e1c th\u1ef1c \u0111\u01b0\u1ee3c t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a b\u1ea3n ghi tr\u01b0\u1edbc khi cung c\u1ea5p th\u00f4ng tin cho ng\u01b0\u1eddi d\u00f9ng. Nh\u1edd \u0111\u00f3, DNSSEC gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o v\u00e0 b\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng kh\u1ecfi c\u00e1c r\u1ee7i ro b\u1ecb l\u1eeba \u0111\u1ea3o tr\u1ef1c tuy\u1ebfn.<\/p>\n<h3><strong>T\u0103ng c\u01b0\u1eddng s\u1ef1 tin c\u1eady cho c\u00e1c trang web v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn<\/strong><\/h3>\n<p>DNSSEC kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng, m\u00e0 c\u00f2n t\u0103ng c\u01b0\u1eddng s\u1ef1 tin c\u1eady cho c\u00e1c trang web v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn. Khi m\u1ed9t trang web ho\u1eb7c d\u1ecbch v\u1ee5 k\u00edch ho\u1ea1t DNSSEC, n\u00f3 cho th\u1ea5y r\u1eb1ng h\u1ecd \u0111\u00e3 c\u00f3 nh\u1eefng bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 m\u1ea1nh m\u1ebd \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS. T\u1eeb \u0111\u00f3 gi\u00fap c\u1ee7ng c\u1ed1 ni\u1ec1m tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong b\u1ed1i c\u1ea3nh c\u00e1c giao d\u1ecbch tr\u1ef1c tuy\u1ebfn v\u00e0 b\u1ea3o m\u1eadt th\u00f4ng tin c\u00e1 nh\u00e2n ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c ch\u00fa tr\u1ecdng.<\/p>\n<div id=\"attachment_25029\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25029\" loading=\"lazy\" class=\"wp-image-25029\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/09\/word-image-25026-3.jpeg\" alt=\"T\u1ea7m quan tr\u1ecdng c\u1ee7a DNSSEC\" width=\"1200\" height=\"630\" \/><p id=\"caption-attachment-25029\" class=\"wp-caption-text\">T\u1ea7m quan tr\u1ecdng c\u1ee7a DNSSEC<\/p><\/div>\n<h3><strong>B\u1ea3o v\u1ec7 h\u1ea1 t\u1ea7ng m\u1ea1ng v\u00e0 d\u1ecbch v\u1ee5 c\u1ee7a doanh nghi\u1ec7p<\/strong><\/h3>\n<p>DNSSEC l\u00e0 m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung c\u1ea7n thi\u1ebft cho c\u00e1c doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c. Vi\u1ec7c \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c b\u1ea3n ghi DNS kh\u00f4ng b\u1ecb thay \u0111\u1ed5i l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng v\u00e0 d\u1ecbch v\u1ee5 c\u1ee7a doanh nghi\u1ec7p, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong vi\u1ec7c duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 web, email... DNSSEC b\u1ea3o v\u1ec7 doanh nghi\u1ec7p kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng v\u00e0 g\u00e2y thi\u1ec7t h\u1ea1i v\u1ec1 t\u00e0i ch\u00ednh, c\u0169ng nh\u01b0 l\u00e0m m\u1ea5t l\u00f2ng tin t\u1eeb ph\u00eda kh\u00e1ch h\u00e0ng.<\/p>\n<h2><strong>L\u00e0m sao k\u00edch ho\u1ea1t DNSSEC cho t\u00ean mi\u1ec1n?<\/strong><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e1c b\u01b0\u1edbc c\u01a1 b\u1ea3n \u0111\u1ec3 k\u00edch ho\u1ea1t DNSSEC cho t\u00ean mi\u1ec1n:<\/p>\n<h3><strong>Ki\u1ec3m tra h\u1ed7 tr\u1ee3 DNSSEC t\u1eeb nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n<\/strong><\/h3>\n<p>Tr\u01b0\u1edbc h\u1ebft, b\u1ea1n c\u1ea7n ki\u1ec3m tra xem nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 DNS c\u1ee7a b\u1ea1n c\u00f3 h\u1ed7 tr\u1ee3 DNSSEC hay kh\u00f4ng. Hi\u1ec7n nay, nhi\u1ec1u nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n l\u1edbn nh\u01b0 GoDaddy, Namecheap, v\u00e0 Cloudflare \u0111\u1ec1u h\u1ed7 tr\u1ee3 DNSSEC, nh\u01b0ng c\u00f3 th\u1ec3 v\u1eabn c\u00f2n m\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p ch\u01b0a h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng n\u00e0y.<\/p>\n<h3><strong>Truy c\u1eadp trang qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n<\/strong><\/h3>\n<p>\u0110\u0103ng nh\u1eadp v\u00e0o t\u00e0i kho\u1ea3n qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n tr\u00ean trang web c\u1ee7a nh\u00e0 cung c\u1ea5p. T\u1ea1i \u0111\u00e2y, b\u1ea1n s\u1ebd t\u00ecm th\u1ea5y m\u1ee5c qu\u1ea3n l\u00fd DNS ho\u1eb7c c\u00e0i \u0111\u1eb7t n\u00e2ng cao (Advanced DNS settings), n\u01a1i ch\u1ee9a c\u00e1c t\u00f9y ch\u1ecdn li\u00ean quan \u0111\u1ebfn b\u1ea3o m\u1eadt DNS.<\/p>\n<h3><strong>K\u00edch ho\u1ea1t DNSSEC<\/strong><\/h3>\n<p>Sau khi t\u00ecm th\u1ea5y ph\u1ea7n c\u00e0i \u0111\u1eb7t DNSSEC, b\u1ea1n ch\u1ec9 c\u1ea7n b\u1eadt t\u00ednh n\u0103ng n\u00e0y l\u00ean. Quy tr\u00ecnh c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o nh\u00e0 cung c\u1ea5p, nh\u01b0ng th\u00f4ng th\u01b0\u1eddng b\u1ea1n s\u1ebd c\u1ea7n kh\u1edfi t\u1ea1o m\u1ed9t c\u1eb7p kh\u00f3a c\u00f4ng khai v\u00e0 ri\u00eang t\u01b0 (key pairs). C\u1eb7p kh\u00f3a n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u00fd s\u1ed1 c\u00e1c b\u1ea3n ghi DNS c\u1ee7a t\u00ean mi\u1ec1n.<\/p>\n<p>Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng t\u1ea1o v\u00e0 qu\u1ea3n l\u00fd kh\u00f3a cho b\u1ea1n. B\u1ea1n ch\u1ec9 c\u1ea7n x\u00e1c nh\u1eadn k\u00edch ho\u1ea1t v\u00e0 ch\u1edd m\u1ed9t th\u1eddi gian ng\u1eafn \u0111\u1ec3 h\u1ec7 th\u1ed1ng ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh k\u00fd s\u1ed1 c\u00e1c b\u1ea3n ghi DNS.<\/p>\n<div id=\"attachment_11622\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/09\/DNSSEC.jpeg\"><img aria-describedby=\"caption-attachment-11622\" loading=\"lazy\" class=\"size-full wp-image-11622\" src=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/09\/DNSSEC.jpeg\" alt=\"DNSSEC\" width=\"1200\" height=\"630\" \/><\/a><p id=\"caption-attachment-11622\" class=\"wp-caption-text\">L\u00e0m sao k\u00edch ho\u1ea1t DNSSEC cho t\u00ean mi\u1ec1n<\/p><\/div>\n<h3><strong>C\u1ea5u h\u00ecnh DS record (Delegation Signer Record)<\/strong><\/h3>\n<p>Sau khi kh\u00f3a \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o v\u00e0 c\u00e1c b\u1ea3n ghi DNS c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00fd s\u1ed1, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 c\u1ea5u h\u00ecnh DS record cho t\u00ean mi\u1ec1n. DS record ch\u1ee9a th\u00f4ng tin v\u1ec1 kh\u00f3a c\u00f4ng khai v\u00e0 \u0111\u01b0\u1ee3c g\u1eedi t\u1edbi c\u01a1 quan \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n g\u1ed1c (nh\u01b0 ICANN ho\u1eb7c VNNIC). \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7 DNS tr\u00ean to\u00e0n th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 x\u00e1c th\u1ef1c c\u00e1c b\u1ea3n ghi DNS c\u1ee7a t\u00ean mi\u1ec1n b\u1ea1n. <br \/>H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 DNS h\u1ed7 tr\u1ee3 s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u1ea5u h\u00ecnh DS record cho b\u1ea1n. Tuy nhi\u00ean, n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 DNS t\u1eeb m\u1ed9t nh\u00e0 cung c\u1ea5p kh\u00e1c so v\u1edbi nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i c\u1ea5u h\u00ecnh DS record th\u1ee7 c\u00f4ng.<\/p>\n<h3><strong>Ki\u1ec3m tra tr\u1ea1ng th\u00e1i DNSSEC<\/strong><\/h3>\n<p>Sau khi \u0111\u00e3 ho\u00e0n t\u1ea5t c\u00e1c b\u01b0\u1edbc tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra tr\u1ea1ng th\u00e1i k\u00edch ho\u1ea1t DNSSEC b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn nh\u01b0 \"DNSSEC Analyzer\" c\u1ee7a Verisign ho\u1eb7c c\u00f4ng c\u1ee5 ki\u1ec3m tra c\u1ee7a Cloudflare. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd gi\u00fap b\u1ea1n x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c b\u1ea3n ghi DNS c\u1ee7a t\u00ean mi\u1ec1n \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00fd s\u1ed1 v\u00e0 h\u1ec7 th\u1ed1ng DNSSEC \u0111ang ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch.<\/p>\n<h2><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng DNSSEC<\/strong><\/h2>\n<ul>\n<li>Qu\u1ea3n l\u00fd kh\u00f3a ri\u00eang t\u01b0 (private key) l\u00e0 r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng DNSSEC. N\u1ebfu kh\u00f3a ri\u00eang t\u01b0 b\u1ecb r\u00f2 r\u1ec9, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1c b\u1ea3n ghi DNS c\u1ee7a b\u1ea1n m\u00e0 v\u1eabn gi\u1eef nguy\u00ean ch\u1eef k\u00fd s\u1ed1 h\u1ee3p l\u1ec7. Do \u0111\u00f3, c\u1ea7n c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 kh\u00f3a b\u1ea3o m\u1eadt th\u1eadt ch\u1eb7t ch\u1ebd.<\/li>\n<li>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh an to\u00e0n l\u00e2u d\u00e0i, vi\u1ec7c thay \u0111\u1ed5i kh\u00f3a b\u1ea3o m\u1eadt \u0111\u1ecbnh k\u1ef3 l\u00e0 r\u1ea5t quan tr\u1ecdng. Khi thay \u0111\u1ed5i kh\u00f3a, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n quy tr\u00ecnh rollover m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/li>\n<li>Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ec1u h\u1ed7 tr\u1ee3 DNSSEC. Tr\u01b0\u1edbc khi k\u00edch ho\u1ea1t DNSSEC, b\u1ea1n c\u1ea7n ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 DNS t\u1eeb b\u00ean th\u1ee9 ba.<\/li>\n<\/ul>\n<h2><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n<p>DNSSEC l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o v\u1ec7 c\u00e1c b\u1ea3n ghi DNS kh\u1ecfi b\u1ecb gi\u1ea3 m\u1ea1o, t\u1eeb \u0111\u00f3 gi\u00fap b\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng v\u00e0 doanh nghi\u1ec7p kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS nguy hi\u1ec3m. Vi\u1ec7c k\u00edch ho\u1ea1t v\u00e0 tri\u1ec3n khai DNSSEC cho t\u00ean mi\u1ec1n l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh cho c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn. M\u1eb7c d\u00f9 c\u00f3 m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn vi\u1ec7c qu\u1ea3n l\u00fd kh\u00f3a v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch, nh\u01b0ng l\u1ee3i \u00edch b\u1ea3o m\u1eadt m\u00e0 DNSSEC mang l\u1ea1i l\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn.<\/p>\n<div class=\"tg_wrap_cbsv tg_wrap_cbsv_blue\" style=\"margin: 20px 0px; border-radius: 4px; border: 2px solid #0066b2;\"><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<\/div>\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? N\u00ean mua t\u00ean mi\u1ec1n .info \u1edf \u0111\u00e2u r\u1ebb nh\u1ea5t<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/chon-ten-mien\/\">M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 ch\u1ecdn t\u00ean mi\u1ec1n thu h\u00fat m\u1ecdi kh\u00e1ch h\u00e0ng<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/ten-mien-chuan-seo\/\">T\u00ean mi\u1ec1n chu\u1ea9n SEO c\u1ea7n \u0111\u00e1p \u1ee9ng ti\u00eau ch\u00ed n\u00e0o? H\u01b0\u1edbng d\u1eabn c\u00e1ch ch\u1ecdn t\u00ean mi\u1ec1n<\/a><\/li>\n<li><a href=\"https:\/\/cloud.z.com\/vn\/news\/nha-cung-cap-ten-mien\/\">Top c\u00e1c nh\u00e0 cung c\u1ea5p t\u00ean mi\u1ec1n uy t\u00edn. 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>DNSSEC (Domain Name System Security Extensions) l\u00e0 m\u1ed9t b\u1ed9 m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng DNS kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u01b0 DNS spoofing v\u00e0 cache poisoning. B\u1eb1ng c\u00e1ch th\u00eam c\u00e1c l\u1edbp x\u00e1c th\u1ef1c v\u00e0o c\u00e1c...<\/p>\n","protected":false},"author":28,"featured_media":11622,"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\/DNSSEC.jpeg","_links":{"self":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11621"}],"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=11621"}],"version-history":[{"count":3,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11621\/revisions"}],"predecessor-version":[{"id":11625,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11621\/revisions\/11625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media\/11622"}],"wp:attachment":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media?parent=11621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/categories?post=11621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/tags?post=11621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}