{"id":14215,"date":"2021-06-03T15:15:53","date_gmt":"2021-06-03T08:15:53","guid":{"rendered":"https:\/\/blog.tinohost.com\/?p=14215"},"modified":"2025-06-11T14:02:30","modified_gmt":"2025-06-11T07:02:30","slug":"dnssec-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/dnssec-la-gi\/","title":{"rendered":"DNSSEC l\u00e0 g\u00ec? L\u1ee3i \u00edch c\u1ee7a DNSSEC"},"content":{"rendered":"\n<p><strong>DNS l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb<em> Domain Name System<\/em> &#8211; <em>h\u1ec7 th\u1ed1ng ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n<\/em>, \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng <a href=\"https:\/\/tino.vn\/blog\/dia-chi-ip-la-gi\/\" target=\"_blank\" data-type=\"post\" data-id=\"61773\" rel=\"noreferrer noopener\">\u0111\u1ecba ch\u1ec9 IP<\/a> v\u00e0 <a href=\"https:\/\/tino.vn\/blog\/ten-mien-la-gi\/\" target=\"_blank\" data-type=\"post\" data-id=\"53113\" rel=\"noreferrer noopener\">t\u00ean mi\u1ec1n<\/a>. V\u1eady c\u00f2n DNSSEC l\u00e0 g\u00ec? \u0110\u1ec3 gi\u1ea3i \u0111\u00e1p cho c\u00e2u h\u1ecfi n\u00e0y, m\u1eddi b\u1ea1n c\u00f9ng Tino Group t\u00ecm hi\u1ec3u qua b\u00e0i vi\u1ebft n\u00e0y.<\/strong><\/p>\n\n\n\n<h2 id=\"T\u00ecm_hi\u1ec3u_v\u1ec1_DNSSEC\"><strong>T\u00ecm hi\u1ec3u v\u1ec1 DNSSEC<\/strong><\/h2>\n\n\n\n<h3 id=\"Gi\u1ea3i_th\u00edch_v\u1ec1_DNS\"><strong>Gi\u1ea3i th\u00edch v\u1ec1 DNS<\/strong><\/h3>\n\n\n\n<p><a href=\"https:\/\/tino.vn\/blog\/dns-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">DNS<\/a> l\u00e0 m\u1ed9t giao th\u1ee9c ti\u00eau chu\u1ea9n gi\u00fap ng\u01b0\u1eddi d\u00f9ng Internet nh\u1eadn bi\u1ebft \u0111\u1ecba ch\u1ec9 IP m\u1ed9t trang web \u0111ang s\u1eed d\u1ee5ng. Gi\u1ed1ng nh\u01b0 m\u1ed9t danh b\u1ea1, b\u1ea1n c\u00f3 th\u1ec3 tra c\u1ee9u t\u00ean c\u1ee7a m\u1ed9t ng\u01b0\u1eddi v\u00e0 xem s\u1ed1 \u0111i\u1ec7n tho\u1ea1i c\u1ee7a h\u1ecd. DNS c\u0169ng v\u1eady, cho ph\u00e9p b\u1ea1n nh\u1eadp \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u1ed9t trang web v\u00e0 t\u1ef1 \u0111\u1ed9ng xem \u0111\u1ecba ch\u1ec9 IP c\u1ee7a trang web \u0111\u00f3.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"650\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-1.webp\" alt=\"dinh-nghia-dns\" class=\"wp-image-80185\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-1.webp 650w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-1-300x185.webp 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><figcaption class=\"wp-element-caption\"><strong>\u0110\u1ecbnh ngh\u0129a DNS<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"DNSSEC_l\u00e0_g\u00ec?\"><strong>DNSSEC l\u00e0 g\u00ec?<\/strong><\/h3>\n\n\n\n<p>DNSSEC l\u00e0 c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng ch\u1ee9c n\u0103ng b\u1ea3o m\u1eadt cho DNS tr\u00e1nh kh\u1ecfi t\u00e1c \u0111\u1ed9ng gi\u1ea3 m\u1ea1o, l\u00e0m sai l\u1ec7ch d\u1eef li\u1ec7u. DNSSEC cung c\u1ea5p c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 DNS theo t\u1eebng khu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"650\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-2.webp\" alt=\"DNSSEC-la-gi\" class=\"wp-image-80184\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-2.webp 650w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-2-300x185.webp 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><figcaption class=\"wp-element-caption\"><strong>DNSSEC l\u00e0 g\u00ec?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"L\u1ecbch_s\u1eed_ph\u00e1t_tri\u1ec3n_DNSSEC\"><strong>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n DNSSEC<\/strong><\/h3>\n\n\n\n<p>N\u0103m 1990, l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt DNS \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n, b\u1eaft \u0111\u1ea7u cho c\u00e1c k\u1ebf ho\u1ea1ch nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n cho m\u1ed9t h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt.<\/p>\n\n\n\n<p>DNSSEC l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c tri\u1ec3n khai \u1edf c\u1ea5p c\u01a1 s\u1edf v\u00e0o n\u0103m 2010.<\/p>\n\n\n\n<p>Mi\u1ec1n c\u1ea5p cao nh\u1ea5t (<a href=\"https:\/\/tino.vn\/blog\/ten-mien-org-la-gi\/\" data-type=\"post\" data-id=\"72989\" target=\"_blank\" rel=\"noreferrer noopener\">.ORG<\/a>) \u0111\u01b0\u1ee3c k\u00fd v\u01a1i DNSSEC v\u00e0o n\u0103m 2010, ti\u1ebfp theo \u0111\u00f3 l\u00e0 (<a href=\"https:\/\/tino.vn\/blog\/nen-mua-ten-mien-com-hay-vn\/\" data-type=\"post\" data-id=\"73147\" target=\"_blank\" rel=\"noreferrer noopener\">.COM<\/a>), (<a href=\"https:\/\/tino.vn\/blog\/ten-mien-net-co-y-nghia-la-gi\/\" target=\"_blank\" data-type=\"post\" data-id=\"72588\" rel=\"noreferrer noopener\">.NET<\/a>) v\u00e0 (.EDU)<\/p>\n\n\n\n<h3 id=\"4_b\u1ea3n_ghi_m\u1edbi_c\u1ee7a_DNSSEC\"><strong>4 b\u1ea3n ghi m\u1edbi c\u1ee7a DNSSEC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ea3n ch\u1eef k\u00fd t\u00e0i nguy\u00ean (RRSIG \u2013 Resource Record Signature):<\/strong> l\u01b0u tr\u1eef th\u00f4ng tin quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c d\u1eef li\u1ec7u \u0111i k\u00e8m.<\/li>\n\n\n\n<li><strong>B\u1ea3n ghi kh\u00f3a c\u00f4ng c\u1ed9ng (DNSKEY \u2013 Public Key):<\/strong> s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c minh ch\u1eef k\u00fd trong b\u1ea3n ghi RRSIG.<\/li>\n\n\n\n<li><strong>B\u1ea3n ghi k\u00fd \u1ee7y quy\u1ec1n (DS \u2013 Delegation Signer): <\/strong>Ch\u1ee9ng th\u1ef1c khu v\u1ef1c \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n, tham chi\u1ebfu DNSKEY trong v\u00f9ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n ph\u1ee5.<\/li>\n\n\n\n<li><strong>B\u1ea3n ghi b\u1ea3o m\u1eadt k\u1ebf ti\u1ebfp (NSEC \u2013 Next Secure):<\/strong> Ch\u1ee9a li\u00ean k\u1ebft c\u1ee7a c\u00e1c b\u1ea3n ghi trong v\u00f9ng v\u00e0 li\u1ec7t k\u00ea c\u00e1c lo\u1ea1i b\u1ea3n ghi t\u1ed3n t\u1ea1i. Li\u00ean k\u1ebft v\u1edbi NSEC \u0111\u1ec3 x\u00e1c th\u1ef1c nh\u1eefng b\u1ea3n ghi kh\u00f4ng t\u1ed3n t\u1ea1i trong v\u00f9ng.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"650\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-3.webp\" alt=\"4-ban-ghi-moi-cua-dnssec\" class=\"wp-image-80186\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-3.webp 650w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-3-300x185.webp 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><figcaption class=\"wp-element-caption\"><strong>4 b\u1ea3n ghi m\u1edbi c\u1ee7a DNSSEC<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"3_th\u00e0nh_ph\u1ea7n_ch\u00ednh_c\u1ee7a_c\u01a1_s\u1edf_h\u1ea1_t\u1ea7ng_DNS_\u0111\u01b0\u1ee3c_DNSSEC_tri\u1ec3n_khai\"><strong>3 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng DNS \u0111\u01b0\u1ee3c DNSSEC tri\u1ec3n khai<\/strong><\/h3>\n\n\n\n<h4 id=\"M\u00e1y_ch\u1ee7_\u0111\u1ec7_quy_\"><strong>M\u00e1y ch\u1ee7 \u0111\u1ec7 quy <\/strong><\/h4>\n\n\n\n<p>M\u00e1y ch\u1ee7 \u0111\u1ec7 quy th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 tra c\u1ee9u t\u00ean mi\u1ec1n, ng\u01b0\u1eddi v\u1eadn h\u00e0nh m\u00e1y ch\u1ee7 \u0111\u1ec7 quy c\u1ea7n k\u00edch ho\u1ea1t x\u00e1c th\u1ef1c DNSSEC. Khi k\u00edch ho\u1ea1t x\u00e1c th\u1ef1c, m\u00e1y ch\u1ee7 \u0111\u1ec7 quy c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 b\u1ed5 sung tr\u00ean m\u1ed7i ph\u1ea3n h\u1ed3i DNS nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh x\u00e1c th\u1ef1c.<\/p>\n\n\n\n<h4 id=\"M\u00e1y_ch\u1ee7_\u1ee7y_quy\u1ec1n\"><strong>M\u00e1y ch\u1ee7 \u1ee7y quy\u1ec1n<\/strong><\/h4>\n\n\n\n<p>Nh\u1eefng ng\u01b0\u1eddi xu\u1ea5t b\u1ea3n d\u1eef li\u1ec7u DNS tr\u00ean m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u1ea7n k\u00fd d\u1eef li\u1ec7u v\u00e0 c\u00e1c b\u1ea3n ghi t\u00e0i nguy\u00ean b\u1ed5 sung, xu\u1ea5t b\u1ea3n l\u00ean mi\u1ec1n m\u1eb9 khi c\u1ea7n khi\u1ebft. DNSSEC \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, m\u00e1y ch\u1ee7 c\u00f3 th\u1ea9m quy\u1ec1n ph\u1ea3n h\u1ed3i truy v\u1ea5n DNS b\u1ed5 sung.<\/p>\n\n\n\n<h4 id=\"\u1ee8ng_d\u1ee5ng\"><strong>\u1ee8ng d\u1ee5ng<\/strong><\/h4>\n\n\n\n<p>Th\u00e0nh ph\u1ea7n n\u00e0y t\u1ed3n t\u1ea1i tr\u00ean m\u1ecdi m\u00e1y kh\u00e1ch, t\u1eeb website \u0111\u1ebfn \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, bao g\u1ed3m th\u01b0 vi\u1ec7n tr\u00ecnh ph\u00e2n gi\u1ea3i c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1c nhau v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 tr\u00ecnh duy\u1ec7t web.<\/p>\n\n\n\n<h2 id=\"L\u1ee3i_\u00edch_c\u1ee7a_DNSSEC\"><strong>L\u1ee3i \u00edch c\u1ee7a DNSSEC<\/strong><\/h2>\n\n\n\n<h3 id=\"Ai_\u0111\u01b0\u1ee3c_h\u01b0\u1edfng_l\u1ee3i_\u00edch_t\u1eeb_DNSSEC?\"><strong>Ai \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i \u00edch t\u1eeb DNSSEC?<\/strong><\/h3>\n\n\n\n<p>\u1ea2nh h\u01b0\u1edfng m\u1edf r\u1ed9ng c\u1ee7a DNSSEC li\u00ean quan \u0111\u1ebfn to\u00e0n h\u1ec7 sinh th\u00e1i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng Internet. DNSSEC mang l\u1ea1i m\u1ed9t s\u1ed1 c\u1ea3i ti\u1ebfn quan tr\u1ecdng trong b\u1ea3o m\u1eadt c\u1ee7a c\u00e1c c\u01a1 quan, c\u00f4ng ty, nh\u00e0 cung c\u1ea5p ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m, c\u00e1c t\u1ed5 ch\u1ee9c v\u00e0 ng\u01b0\u1eddi d\u00f9ng Internet th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<h3 id=\"L\u1ee3i_\u00edch_cho_ng\u01b0\u1eddi_doanh_nghi\u1ec7p_v\u00e0_website_\"><strong>L\u1ee3i \u00edch cho ng\u01b0\u1eddi doanh nghi\u1ec7p v\u00e0 website <\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ea3o v\u1ec7 <a href=\"https:\/\/tino.vn\/blog\/thuong-hieu-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u01b0\u01a1ng hi\u1ec7u<\/a> cho doanh nghi\u1ec7p v\u00e0 kh\u00e1ch h\u00e0ng<\/li>\n\n\n\n<li>Gi\u00fap cho doanh nghi\u1ec7p ch\u00fa tr\u1ecdng \u0111\u1ebfn b\u1ea3o m\u1eadt v\u00e0 uy t\u00edn.<\/li>\n\n\n\n<li>T\u1ea1o c\u00e1c d\u1ecbch v\u1ee5 m\u1edbi cho doanh nghi\u1ec7p<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng DNS cho c\u00e1c lo\u1ea1i d\u1eef li\u1ec7u an to\u00e0n m\u1edbi<\/li>\n\n\n\n<li>Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng b\u1ea3o v\u1ec7 t\u00ean mi\u1ec1n cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 cho kh\u00e1ch h\u00e0ng v\u00e0 doanh nghi\u1ec7p.<\/li>\n\n\n\n<li>\u0110\u1eb7t l\u00f2ng tin v\u00e0o internet \u0111\u1ec3 b\u1ea3o v\u1ec7 ho\u1ea1t \u0111\u1ed9ng kinh doanh c\u1ed1t l\u00f5i.<\/li>\n\n\n\n<li>X\u00e2y d\u1ef1ng danh ti\u1ebfng nh\u01b0 m\u1ed9t t\u1ed5 ch\u1ee9c \u0111i \u0111\u1ea7u trong vi\u1ec7c quan t\u00e2m \u0111\u1ebfn b\u1ea3o m\u1eadt th\u00f4ng tin cho kh\u00e1ch h\u00e0ng.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"650\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-4.webp\" alt=\"loi-ich-cua-dnssec\" class=\"wp-image-80187\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-4.webp 650w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-4-300x185.webp 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><figcaption class=\"wp-element-caption\"><strong>L\u1ee3i \u00edch c\u1ee7a DNSSEC<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"L\u1ee3i_\u00edch_\u0111\u1ed1i_v\u1edbi_ISP\"><strong>L\u1ee3i \u00edch \u0111\u1ed1i v\u1edbi ISP<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1ea3m thi\u1ec3u nguy c\u01a1 Hacker \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng.<\/li>\n\n\n\n<li>Gi\u00fap b\u1ea3o v\u1ec7 v\u00e0 x\u00e2y d\u1ef1ng th\u01b0\u01a1ng hi\u1ec7u, uy t\u00edn.<\/li>\n\n\n\n<li>Duy tr\u00ec s\u1ef1 tin t\u01b0\u1edfng v\u00e0 l\u00f2ng trung th\u00e0nh v\u1edbi kh\u00e1ch h\u00e0ng.<\/li>\n\n\n\n<li>Th\u1ec3 hi\u1ec7n s\u1ef1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh t\u01b0\u01a1ng lai c\u1ee7a DNSSEC.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"Ho\u1ea1t_\u0111\u1ed9ng_cung_c\u1ea5p_ti\u1ebfn_\u0111\u1ed9_b\u1ea3o_m\u1eadt_c\u1ee7a_DNSSEC\"><strong>Ho\u1ea1t \u0111\u1ed9ng cung c\u1ea5p ti\u1ebfn \u0111\u1ed9 b\u1ea3o m\u1eadt c\u1ee7a DNSSEC<\/strong><\/h3>\n\n\n\n<p>Trong DNSSEC, m\u1ed7i v\u00f9ng c\u00f3 m\u1ed9t c\u1eb7p kh\u00f3a c\u00f4ng khai v\u00e0 ri\u00eang t\u01b0. Kh\u00f3a c\u00f4ng khai \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng DNS, kh\u00f3a ri\u00eang t\u01b0 gi\u00fap gi\u1eef an to\u00e0n v\u00e0 l\u01b0u tr\u1eef ngo\u1ea1i tuy\u1ebfn.<\/p>\n\n\n\n<p>DNSSEC s\u1eed d\u1ee5ng m\u00f4 h\u00ecnh b\u1ea3o m\u1eadt \u0111\u00e1ng tin c\u1eady v\u00e0 chu\u1ed7i c\u1eb7p tin t\u1eeb v\u00f9ng m\u1eb9 sang v\u00f9ng con. N\u1ebfu g\u1eb7p v\u00f9ng c\u1ea5p cao h\u01a1n, kh\u00f3a s\u1ebd \u0111\u01b0\u1ee3c m\u1edf c\u00f4ng khai \u1edf nh\u1eefng v\u00f9ng c\u1ea5p th\u1ea5p.<\/p>\n\n\n\n<p>Khi ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n truy c\u1eadp website, tr\u00ecnh ph\u00e2n gi\u1ea3i s\u01a1 khai s\u1ebd y\u00eau c\u1ea7u \u0111\u1ecba ch\u1ec9 IP t\u1eeb trang web c\u1ee7a m\u00e1y ch\u1ee7. Sau khi nh\u1eadn y\u00eau c\u1ea7u b\u1ea3n ghi t\u1eeb m\u00e1y ch\u1ee7, DNSSEC s\u1ebd kho\u00e1 l\u1ea1i. X\u00e1c minh \u0111\u1ecba ch\u1ec9 IP nh\u1eadn \u0111\u01b0\u1ee3c gi\u1ed1ng v\u1edbi b\u1ea3n ghi tr\u00ean m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n.<\/p>\n\n\n\n<p>N\u1ebfu m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh x\u00e1c nh\u1eadn b\u1ea3n ghi \u0111\u1ecba ch\u1ec9 \u0111\u01b0\u1ee3c g\u1eedi b\u1edfi m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n v\u00e0 kh\u00f4ng b\u1ecb thay \u0111\u1ed5i khi chuy\u1ec3n ti\u1ebfp, DNSSEC s\u1ebd ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n v\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp website.<\/p>\n\n\n\n<p>DNSSEC c\u0169ng c\u00f3 ch\u1ee9c n\u0103ng ch\u1ee9ng minh m\u1ed9t t\u00ean mi\u1ec1n kh\u00f4ng t\u1ed3n t\u1ea1i. C\u00e1c truy v\u1ea5n v\u00e0 ph\u1ea3n h\u1ed3i DNS \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng v\u00e0 c\u00e1c lo\u1ea1i gi\u1ea3 m\u1ea1o chuy\u1ec3n ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang l\u1eeba \u0111\u1ea3o.<\/p>\n\n\n\n<h3 id=\"B\u1ea3o_m\u1eadt_DNS_th\u00f4ng_qua_DNSSEC\"><strong>B\u1ea3o m\u1eadt DNS th\u00f4ng qua DNSSEC<\/strong><\/h3>\n\n\n\n<p>DNSSEC th\u1ef1c hi\u1ec7n x\u00e1c minh danh t\u00ednh c\u00e1c ph\u1ea3n h\u1ed3i t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh g\u1eedi \u0111\u1ebfn, s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 ch\u1eef k\u00fd m\u1eadt m\u00e3. DNSSEC th\u00eam ch\u1eef k\u00fd m\u1eadt m\u00e3 v\u00e0o b\u1ea3n ghi \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u trong DNS.<\/p>\n\n\n\n<p>Khi s\u1eed d\u1ee5ng DNSSEC, tr\u00ecnh ph\u00e2n gi\u1ea3i DNS s\u1ebd ki\u1ec3m tra ch\u1eef k\u00fd m\u1eadt m\u00e3 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi m\u1ed9t b\u1ea3n ghi \u0111\u1ec3 x\u00e1c minh tr\u01b0\u1edbc khi cung c\u1ea5p ph\u1ea3n h\u1ed3i. <\/p>\n\n\n\n<p>DNSSEC x\u00e1c th\u1ef1c m\u1ed9t lo\u1ea1i b\u1ea3n ghi t\u00e0i nguy\u00ean DNS m\u1edbi v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n x\u00e1c th\u1ef1c ch\u1eef k\u00fd m\u1eadt m\u00e3.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"632\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-5.webp\" alt=\"cach-thuc-hoat-dong-cua-dnssec\" class=\"wp-image-80190\" style=\"width:800px;height:auto\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-5.webp 800w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-5-300x237.webp 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2023\/11\/dnssec-la-gi-5-768x607.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DNSSEC<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"Quy_tr\u00ecnh_x\u00e1c_th\u1ef1c_DNSSEC\"><strong>Quy tr\u00ecnh x\u00e1c th\u1ef1c DNSSEC<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp \u0111\u1ecba ch\u1ec9 URL v\u00e0o tr\u00ecnh duy\u1ec7t c\u1ee7a h\u1ecd. \u0110\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u1ecba ch\u1ec9 IP cho m\u00e1y ch\u1ee7, tr\u00ecnh duy\u1ec7t th\u1ef1c hi\u1ec7n truy v\u1ea5n c\u00e1c tr\u00ecnh ph\u00e2n gi\u1ea3i DNS c\u1ee7a m\u00e1y t\u00ednh c\u1ee5c b\u1ed9. Tr\u00ecnh ph\u00e2n gi\u1ea3i l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n  ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111\u1ecbnh v\u1ecb v\u00e0 tr\u1ea3 IP ch\u00ednh x\u00e1c.<\/li>\n\n\n\n<li>N\u1ebfu tr\u00ecnh qu\u1ea3n l\u00fd s\u01a1 khai c\u1ee5c b\u1ed9 c\u00f3 \u0111\u1ecba ch\u1ec9 IP n\u1eb1m trong b\u1ed9 nh\u1edb cache, n\u00f3 s\u1ebd tr\u1ea3 v\u1ec1 tr\u00ecnh duy\u1ec7t. N\u1ebfu kh\u00f4ng, n\u00f3 s\u1ebd chuy\u1ec3n y\u00eau c\u1ea7u \u0111\u1ebfn tr\u00ecnh ph\u00e2n gi\u1ea3i do <a class=\"rank-math-link\" href=\"https:\/\/tino.vn\/blog\/tong-quan-ve-isp-internet-service-providers\/\" target=\"_blank\" rel=\"noopener\">ISP<\/a> qu\u1ea3n l\u00fd.<\/li>\n\n\n\n<li>N\u1ebfu tr\u00ecnh ph\u00e2n gi\u1ea3i c\u00f3 \u0111\u1ecba ch\u1ec9 trong b\u1ed9 nh\u1edb cache, n\u00f3 s\u1ebd tr\u1ea3 v\u1ec1 \u0111\u1ecba ch\u1ec9. N\u1ebfu kh\u00f4ng, n\u00f3 s\u1ebd b\u1eaft \u0111\u1ea7u truy v\u1ea5n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 DNS l\u01b0u th\u00f4ng c\u00f3 th\u1ea9m quy\u1ec1n cho mi\u1ec1n \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/li>\n\n\n\n<li>Tr\u00ecnh ph\u00e2n gi\u1ea3i b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1c li\u00ean h\u1ec7 \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS g\u1ed1c v\u00e0 \u0111\u01b0\u1ee3c tham chi\u1ebfu tr\u00ean DNS mi\u1ec1n cao nh\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00e1y ch\u1ee7 DNS mi\u1ec1n cao nh\u1ea5t \u0111\u1ec1 c\u1eadp \u0111\u1ebfn qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i c\u1ee7a m\u1ed9t m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n<\/li>\n\n\n\n<li>\u1ede m\u1ed7i giai \u0111o\u1ea1n, tr\u00ecnh ph\u00e2n gi\u1ea3i y\u00eau c\u1ea7u kh\u00f3a DNSSEC \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi v\u00f9ng DNS, \u0111\u1ec3 x\u00e1c minh r\u1eb1ng m\u00e1y ch\u1ee7. M\u00e1y ch\u1ee7 DNS th\u1ea9m quy\u1ec1n cao c\u00f3 th\u1ec3 y\u00eau c\u1ea7u kh\u00f3a DNSSEC cho v\u00f9ng. M\u00e1y ch\u1ee7 DNS c\u00f3 th\u1ea9m quy\u1ec1n tr\u1ea3 v\u1ec1 ph\u1ea3n h\u1ed3i DNS, bao g\u1ed3m c\u00e1c b\u1ea3n ghi RRSIG<\/li>\n\n\n\n<li>Tr\u00ecnh ph\u00e2n gi\u1ea3i x\u00e1c nh\u1eadn RRSIG, x\u00e1c minh b\u1ea3n ghi \u0111\u1ecba ch\u1ec9 \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n v\u00e0 kh\u00f4ng b\u1ecb thay \u0111\u1ed5i khi chuy\u1ec3n ti\u1ebfp. Sau \u0111\u00f3, n\u00f3 s\u1ebd ph\u1ea3n h\u1ed3i DNS \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c v\u1edbi \u0111\u1ecba ch\u1ec9 IP.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"M\u1ed9t_s\u1ed1_c\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p_v\u1ec1_DNSSEC\"><strong>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 DNSSEC<\/strong><\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"L\u00e0m_th\u1ebf_n\u00e0o_\u0111\u1ec3_nh\u1eadn_\u0111\u01b0\u1ee3c_th\u00f4ng_b\u00e1o_v\u1ec1_m\u1ed9t_cu\u1ed9c_t\u1ea5n_c\u00f4ng?\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o v\u1ec1 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Ch\u01b0a c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n n\u00e0o \u0111\u1ec3 th\u00f4ng b\u00e1o cho ng\u01b0\u1eddi d\u00f9ng v\u1ec1 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng. M\u1ed9t gi\u1ea3i ph\u00e1p kh\u1ea3 thi l\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c tr\u00ecnh duy\u1ec7t nh\u1eadn bi\u1ebft DNSSEC th\u00f4ng b\u00e1o ng\u01b0\u1eddi d\u00f9ng h\u1ecd \u0111\u00e3 chuy\u1ec3n \u0111\u1ebfn trang \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Khung_th\u1eddi_gian_n\u00e0o_l\u00e0_h\u1ee3p_l\u00fd_\u0111\u1ec3_tri\u1ec3n_khai_x\u00e1c_th\u1ef1c_DNSSEC_cho_c\u00e1c_ISP?\">Khung th\u1eddi gian n\u00e0o l\u00e0 h\u1ee3p l\u00fd \u0111\u1ec3 tri\u1ec3n khai x\u00e1c th\u1ef1c DNSSEC cho c\u00e1c ISP?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>6 th\u00e1ng l\u00e0 th\u1eddi gian \u0111\u1ee7 \u0111\u1ec3 t\u1ea5t c\u1ea3 c\u00e1c ISP b\u1eaft \u0111\u1ea7u tri\u1ec3n khai x\u00e1c th\u1ef1c DNSSEC, \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap cung c\u1ea5p \u0111\u1ee7 th\u1eddi gian \u0111\u1ec3 thu h\u00fat c\u00e1c ngu\u1ed3n l\u1ef1c th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c. Khi c\u00e1c ISP th\u1ec3 hi\u1ec7n cam k\u1ebft c\u1ee7a h\u1ecd \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh, th\u1eddi h\u1ea1n ban \u0111\u1ea7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia h\u1ea1n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Gi\u1ea3i_ph\u00e1p_thay_th\u1ebf_DNSSEC_l\u00e0_g\u00ec?\">Gi\u1ea3i ph\u00e1p thay th\u1ebf DNSSEC l\u00e0 g\u00ec?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>T\u1ea5t c\u1ea3 gi\u1ea3 \u0111\u1ecbnh \u0111\u1ec1u cho r\u1eb1ng tra c\u1ee9u DNS l\u00e0 kh\u00f4ng an to\u00e0n. C\u00e1c t\u01b0\u01a1ng t\u00e1c giao th\u1ee9c kh\u00e1c trong<a href=\"https:\/\/tino.vn\/blog\/tcp-ip-la-gi\/\" target=\"_blank\" data-type=\"post\" data-id=\"16012\" rel=\"noreferrer noopener\"> TCP\/IP<\/a> kh\u00f4ng an to\u00e0n: qu\u1ea3ng c\u00e1o BGP4, \u0111\u1ecba ch\u1ec9 ngu\u1ed3n IP, tra c\u1ee9u ARF. R\u00f5 r\u00e0ng m\u1ed9t s\u1ed1 \u0111i\u1ec3m trong TCP\/IP cho r\u1eb1ng b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng l\u00ean tr\u00ean l\u1edbp n\u00e0y. L\u1eadp lu\u1eadn ch\u1ed1ng l\u1ea1i DNSSEC ch\u1ec9 \u0111\u01a1n gi\u1ea3n cho r\u1eb1ng DNS n\u00ean \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u1edf v\u1ecb tr\u00ed cao h\u01a1n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"DNSSEC_gi\u1ed1ng_TSIG_kh\u00f4ng?\">DNSSEC gi\u1ed1ng TSIG kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>Kh\u00f4ng gi\u1ed1ng. <a href=\"https:\/\/en.wikipedia.org\/wiki\/TSIG\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/TSIG\" rel=\"noreferrer noopener nofollow\">TSIG<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh v\u00e0 b\u1ea3o m\u1eadt chuy\u1ec3n v\u00f9ng, trong khi DNSSEC b\u1ea3o m\u1eadt tra c\u1ee9u DNS b\u1eb1ng c\u00e1ch x\u00e1c th\u1ef1c. Ngay khi b\u1eadt DNSSEC chuy\u1ec3n v\u00f9ng v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, \u0111\u1ec3 b\u1ea3o m\u1eadt th\u00f4ng tin li\u00ean l\u1ea1c gi\u1eefa m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh ch\u00ednh v\u00e0 ph\u1ee5, h\u00e3y xem x\u00e9t thi\u1ebft l\u1eadp TSIG.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o v\u1ec1 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Ch\u01b0a c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n n\u00e0o \u0111\u1ec3 th\u00f4ng b\u00e1o cho ng\u01b0\u1eddi d\u00f9ng v\u1ec1 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng. M\u1ed9t gi\u1ea3i ph\u00e1p kh\u1ea3 thi l\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c tr\u00ecnh duy\u1ec7t nh\u1eadn bi\u1ebft DNSSEC th\u00f4ng b\u00e1o ng\u01b0\u1eddi d\u00f9ng h\u1ecd \u0111\u00e3 chuy\u1ec3n \u0111\u1ebfn trang \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Khung th\u1eddi gian n\u00e0o l\u00e0 h\u1ee3p l\u00fd \u0111\u1ec3 tri\u1ec3n khai x\u00e1c th\u1ef1c DNSSEC cho c\u00e1c ISP?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>6 th\u00e1ng l\u00e0 th\u1eddi gian \u0111\u1ee7 \u0111\u1ec3 t\u1ea5t c\u1ea3 c\u00e1c ISP b\u1eaft \u0111\u1ea7u tri\u1ec3n khai x\u00e1c th\u1ef1c DNSSEC, \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap cung c\u1ea5p \u0111\u1ee7 th\u1eddi gian \u0111\u1ec3 thu h\u00fat c\u00e1c ngu\u1ed3n l\u1ef1c th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c. Khi c\u00e1c ISP th\u1ec3 hi\u1ec7n cam k\u1ebft c\u1ee7a h\u1ecd \u0111\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh, th\u1eddi h\u1ea1n ban \u0111\u1ea7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia h\u1ea1n.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Gi\u1ea3i ph\u00e1p thay th\u1ebf DNSSEC l\u00e0 g\u00ec?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>T\u1ea5t c\u1ea3 gi\u1ea3 \u0111\u1ecbnh \u0111\u1ec1u cho r\u1eb1ng tra c\u1ee9u DNS l\u00e0 kh\u00f4ng an to\u00e0n. C\u00e1c t\u01b0\u01a1ng t\u00e1c giao th\u1ee9c kh\u00e1c trong<a> TCP\/IP<\/a> kh\u00f4ng an to\u00e0n: qu\u1ea3ng c\u00e1o BGP4, \u0111\u1ecba ch\u1ec9 ngu\u1ed3n IP, tra c\u1ee9u ARF. R\u00f5 r\u00e0ng m\u1ed9t s\u1ed1 \u0111i\u1ec3m trong TCP\/IP cho r\u1eb1ng b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng l\u00ean tr\u00ean l\u1edbp n\u00e0y. L\u1eadp lu\u1eadn ch\u1ed1ng l\u1ea1i DNSSEC ch\u1ec9 \u0111\u01a1n gi\u1ea3n cho r\u1eb1ng DNS n\u00ean \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u1edf v\u1ecb tr\u00ed cao h\u01a1n.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"DNSSEC gi\u1ed1ng TSIG kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng gi\u1ed1ng. <a>TSIG<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh v\u00e0 b\u1ea3o m\u1eadt chuy\u1ec3n v\u00f9ng, trong khi DNSSEC b\u1ea3o m\u1eadt tra c\u1ee9u DNS b\u1eb1ng c\u00e1ch x\u00e1c th\u1ef1c. Ngay khi b\u1eadt DNSSEC chuy\u1ec3n v\u00f9ng v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, \u0111\u1ec3 b\u1ea3o m\u1eadt th\u00f4ng tin li\u00ean l\u1ea1c gi\u1eefa m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh ch\u00ednh v\u00e0 ph\u1ee5, h\u00e3y xem x\u00e9t thi\u1ebft l\u1eadp TSIG.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n\n\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>DNS l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb Domain Name System &#8211; h\u1ec7 th\u1ed1ng ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n, \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u1ecba ch\u1ec9 IP v\u00e0 t\u00ean mi\u1ec1n. V\u1eady c\u00f2n DNSSEC l\u00e0 g\u00ec? \u0110\u1ec3 gi\u1ea3i \u0111\u00e1p cho c\u00e2u h\u1ecfi n\u00e0y, m\u1eddi b\u1ea1n c\u00f9ng Tino Group t\u00ecm hi\u1ec3u qua b\u00e0i vi\u1ebft n\u00e0y. T\u00ecm hi\u1ec3u v\u1ec1 DNSSEC [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":80191,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[6354],"class_list":["post-14215","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-kien-thuc-ve-ten-mien"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/14215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=14215"}],"version-history":[{"count":1,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/14215\/revisions"}],"predecessor-version":[{"id":114636,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/14215\/revisions\/114636"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/80191"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=14215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=14215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=14215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}