{"id":2894,"date":"2020-11-30T00:19:09","date_gmt":"2020-11-29T17:19:09","guid":{"rendered":"https:\/\/halink.vn\/?p=2894"},"modified":"2020-11-30T00:21:35","modified_gmt":"2020-11-29T17:21:35","slug":"tim-hieu-ve-dns","status":"publish","type":"post","link":"https:\/\/halink.vn\/tim-hieu-ve-dns\/","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 DNS"},"content":{"rendered":"<p>Trong qu\u00e1 tr\u00ecnh truy c\u1eadp website, m\u00e1y ch\u1ee7 hosting kh\u00f4ng th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n. Thay v\u00e0o \u0111\u00f3 n\u00f3 ch\u1ec9 hi\u1ec3u \u0111\u01b0\u1ee3c th\u00f4ng qua d\u00e3y \u0111\u1ecba ch\u1ec9 IP. Do \u0111\u00f3, ph\u1ea3i c\u00f3 m\u1ed9t \u0111\u01a1n v\u1ecb trung gian ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n v\u1edbi \u0111\u1ecba ch\u1ec9 IP, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 DNS. H\u00e3y c\u00f9ng <a href=\"https:\/\/halink.vn\/tim-hieu-ve-dns\/\"><strong>t\u00ecm hi\u1ec3u v\u1ec1 DNS<\/strong><\/a> trong b\u00e0i vi\u1ebft n\u00e0y nh\u00e9.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_61 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c L\u1ee5c<\/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 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/halink.vn\/tim-hieu-ve-dns\/#DNS_la_gi\" title=\"DNS l\u00e0 g\u00ec?\">DNS l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/halink.vn\/tim-hieu-ve-dns\/#DNS_hoat_dong_nhu_the_nao\" title=\"DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?\">DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/halink.vn\/tim-hieu-ve-dns\/#Cac_buoc_trong_tra_cuu_DNS_la_gi\" title=\"C\u00e1c b\u01b0\u1edbc trong tra c\u1ee9u DNS l\u00e0 g\u00ec?\">C\u00e1c b\u01b0\u1edbc trong tra c\u1ee9u DNS 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-4\" href=\"https:\/\/halink.vn\/tim-hieu-ve-dns\/#8_buoc_trong_tra_cuu_DNS\" title=\"8 b\u01b0\u1edbc trong tra c\u1ee9u DNS\">8 b\u01b0\u1edbc trong tra c\u1ee9u DNS<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"DNS_la_gi\"><\/span>DNS l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n \u2013 Domain Name System (DNS) \u0111\u01b0\u1ee3c xem nh\u01b0 l\u00e0 danh b\u1ea1 c\u1ee7a Internet. M\u1ecdi ng\u01b0\u1eddi truy c\u1eadp th\u00f4ng tin tr\u1ef1c tuy\u1ebfn th\u00f4ng qua c\u00e1c t\u00ean mi\u1ec1n, nh\u01b0 <strong>halink.vn<\/strong>. Tr\u00ecnh duy\u1ec7t web t\u01b0\u01a1ng t\u00e1c th\u00f4ng qua \u0111\u1ecba ch\u1ec9 Giao th\u1ee9c Internet (IP). DNS d\u1ecbch t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP \u0111\u1ec3 tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i ch\u00ednh x\u00e1c t\u1edbi server ch\u1ee9a hosting website \u0111\u1ec3 t\u1ea3i n\u1ed9i dung Website.<\/p>\n<p>M\u1ed7i thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi Internet c\u00f3 m\u1ed9t \u0111\u1ecba ch\u1ec9 IP duy nh\u1ea5t m\u00e0 c\u00e1c m\u00e1y kh\u00e1c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ecm thi\u1ebft b\u1ecb. M\u00e1y ch\u1ee7 DNS lo\u1ea1i b\u1ecf nhu c\u1ea7u con ng\u01b0\u1eddi ph\u1ea3i ghi nh\u1edb c\u00e1c \u0111\u1ecba ch\u1ec9 IP nh\u01b0 192.168.1.1 (trong IPv4) ho\u1eb7c c\u00e1c \u0111\u1ecba ch\u1ec9 IP g\u1ed3m ch\u1eef v\u00e0 s\u1ed1 ph\u1ee9c t\u1ea1p h\u01a1n nh\u01b0 2400: cb00: 2048: 1 :: c629: d7a2 (trong IPv6).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2895\" src=\"https:\/\/halink.vn\/wp-content\/uploads\/2020\/11\/dns-la-gi-cach-su-dung-va-cac-loai-dns-server-pho-bien.png\" alt=\"T\u00ecm hi\u1ec3u DNS l\u00e0 g\u00ec\" width=\"766\" height=\"538\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"DNS_hoat_dong_nhu_the_nao\"><\/span>DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i DNS bao g\u1ed3m vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u00ean m\u00e1y ch\u1ee7 (ch\u1eb3ng h\u1ea1n nh\u01b0 www.halin.vn) th\u00e0nh \u0111\u1ecba ch\u1ec9 IP th\u00e2n thi\u1ec7n v\u1edbi m\u00e1y t\u00ednh (ch\u1eb3ng h\u1ea1n nh\u01b0 192.168.1.1). \u0110\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c c\u1ea5p cho m\u1ed7i thi\u1ebft b\u1ecb tr\u00ean Internet v\u00e0 \u0111\u1ecba ch\u1ec9 \u0111\u00f3 l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u00ecm thi\u1ebft b\u1ecb Internet th\u00edch h\u1ee3p &#8211; gi\u1ed1ng nh\u01b0 \u0111\u1ecba ch\u1ec9 \u0111\u01b0\u1eddng ph\u1ed1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ecm m\u1ed9t ng\u00f4i nh\u00e0 c\u1ee5 th\u1ec3. Khi ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n t\u1ea3i m\u1ed9t trang web, b\u1ea3n d\u1ecbch ph\u1ea3i x\u1ea3y ra gi\u1eefa th\u00f4ng tin ng\u01b0\u1eddi d\u00f9ng nh\u1eadp v\u00e0o tr\u00ecnh duy\u1ec7t web c\u1ee7a h\u1ecd (halink.vn) v\u00e0 \u0111\u1ecba ch\u1ec9 th\u00e2n thi\u1ec7n v\u1edbi m\u00e1y c\u1ea7n thi\u1ebft.<\/p>\n<p><em>Xem <a href=\"https:\/\/halink.vn\/bang-gia-ten-mien\">b\u1ea3ng gi\u00e1 t\u00ean mi\u1ec1n<\/a>.<\/em><\/p>\n<p><strong>C\u00f3 4 m\u00e1y ch\u1ee7 DNS li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ea3i trang web:<\/strong><\/p>\n<p><strong>DNS Recusor:<\/strong> Recusor c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi nh\u01b0 m\u1ed9t th\u1ee7 th\u01b0 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111i t\u00ecm m\u1ed9t cu\u1ed1n s\u00e1ch c\u1ee5 th\u1ec3 \u1edf \u0111\u00e2u \u0111\u00f3 trong th\u01b0 vi\u1ec7n. DNS Recusor l\u00e0 m\u1ed9t m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 nh\u1eadn c\u00e1c truy v\u1ea5n t\u1eeb c\u00e1c m\u00e1y kh\u00e1ch th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 tr\u00ecnh duy\u1ec7t web. Th\u00f4ng th\u01b0\u1eddng, Recusor sau \u0111\u00f3 ch\u1ecbu tr\u00e1ch nhi\u1ec7m th\u1ef1c hi\u1ec7n c\u00e1c y\u00eau c\u1ea7u b\u1ed5 sung \u0111\u1ec3 \u0111\u00e1p \u1ee9ng truy v\u1ea5n DNS c\u1ee7a m\u00e1y kh\u00e1ch.<\/p>\n<p><strong>Root Nameserver:<\/strong> \u0111\u00e2y l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong vi\u1ec7c d\u1ecbch (ph\u00e2n gi\u1ea3i) c\u00e1c <a href=\"https:\/\/halink.vn\/bang-gia-ten-mien\"><strong>t\u00ean mi\u1ec1n<\/strong><\/a> th\u00e0nh \u0111\u1ecba ch\u1ec9 IP. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi gi\u1ed1ng nh\u01b0 m\u1ed9t ch\u1ec9 m\u1ee5c trong th\u01b0 vi\u1ec7n tr\u1ecf \u0111\u1ebfn c\u00e1c gi\u00e1 s\u00e1ch kh\u00e1c nhau &#8211; th\u01b0\u1eddng n\u00f3 d\u00f9ng nh\u01b0 m\u1ed9t tham chi\u1ebfu \u0111\u1ebfn c\u00e1c v\u1ecb tr\u00ed c\u1ee5 th\u1ec3 h\u01a1n.<\/p>\n<p><strong>TLD Nameserver:<\/strong> M\u00e1y ch\u1ee7 mi\u1ec1n c\u1ea5p cao nh\u1ea5t (TLD) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi nh\u01b0 m\u1ed9t gi\u00e1 s\u00e1ch c\u1ee5 th\u1ec3 trong th\u01b0 vi\u1ec7n. M\u00e1y ch\u1ee7 \u0111\u1ecbnh danh n\u00e0y l\u00e0 b\u01b0\u1edbc ti\u1ebfp theo trong vi\u1ec7c t\u00ecm ki\u1ebfm m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u1ee5 th\u1ec3 v\u00e0 n\u00f3 l\u01b0u tr\u1eef ph\u1ea7n cu\u1ed1i c\u00f9ng c\u1ee7a t\u00ean m\u00e1y ch\u1ee7 (Trong <strong>halink.vn<\/strong>, m\u00e1y ch\u1ee7 TLD l\u00e0 \u201cvn\u201d).<\/p>\n<p><strong>Authoritative Name Server:<\/strong> M\u00e1y ch\u1ee7 \u0111\u1ecbnh danh cu\u1ed1i c\u00f9ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi nh\u01b0 m\u1ed9t cu\u1ed1n t\u1eeb \u0111i\u1ec3n tr\u00ean gi\u00e1 s\u00e1ch, trong \u0111\u00f3 m\u1ed9t t\u00ean c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u1ecbch theo \u0111\u1ecbnh ngh\u0129a c\u1ee7a n\u00f3. M\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n l\u00e0 \u0111i\u1ec3m d\u1eebng cu\u1ed1i c\u00f9ng trong truy v\u1ea5n m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh. N\u1ebfu m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o b\u1ea3n ghi \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u, n\u00f3 s\u1ebd tr\u1ea3 l\u1ea1i \u0111\u1ecba ch\u1ec9 IP cho t\u00ean m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u tr\u1edf l\u1ea1i DNS Recursor (th\u1ee7 th\u01b0) \u0111\u00e3 th\u1ef1c hi\u1ec7n y\u00eau c\u1ea7u ban \u0111\u1ea7u<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac_buoc_trong_tra_cuu_DNS_la_gi\"><\/span>C\u00e1c b\u01b0\u1edbc trong tra c\u1ee9u DNS l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c t\u00ecnh hu\u1ed1ng, DNS li\u00ean quan \u0111\u1ebfn vi\u1ec7c m\u1ed9t t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c d\u1ecbch sang \u0111\u1ecba ch\u1ec9 IP th\u00edch h\u1ee3p. \u0110\u1ec3 t\u00ecm hi\u1ec3u c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y, h\u00e3y theo d\u00f5i \u0111\u01b0\u1eddng d\u1eabn c\u1ee7a tra c\u1ee9u DNS khi n\u00f3 di chuy\u1ec3n t\u1eeb tr\u00ecnh duy\u1ec7t web, th\u00f4ng qua quy tr\u00ecnh tra c\u1ee9u DNS v\u00e0 quay l\u1ea1i l\u1ea7n n\u1eefa. <em>&gt;&gt; <a href=\"https:\/\/halink.vn\/bang-gia-ten-mien\">Mua t\u00ean mi\u1ec1n \u1edf \u0111\u00e2u?<\/a><\/em><\/p>\n<p>L\u01b0u \u00fd: Th\u00f4ng th\u01b0\u1eddng th\u00f4ng tin tra c\u1ee9u DNS s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef c\u1ee5c b\u1ed9 b\u00ean trong m\u00e1y t\u00ednh truy v\u1ea5n ho\u1eb7c t\u1eeb xa trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng DNS. Th\u01b0\u1eddng c\u00f3 8 b\u01b0\u1edbc trong tra c\u1ee9u DNS. Khi th\u00f4ng tin DNS \u0111\u01b0\u1ee3c l\u01b0u v\u00e0o b\u1ed9 nh\u1edb cache, c\u00e1c b\u01b0\u1edbc s\u1ebd \u0111\u01b0\u1ee3c b\u1ecf qua kh\u1ecfi quy tr\u00ecnh tra c\u1ee9u DNS, gi\u00fap qu\u00e1 tr\u00ecnh n\u00e0y nhanh h\u01a1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_buoc_trong_tra_cuu_DNS\"><\/span>8 b\u01b0\u1edbc trong tra c\u1ee9u DNS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp <strong>halink.vn<\/strong> v\u00e0o tr\u00ecnh duy\u1ec7t web v\u00e0 truy v\u1ea5n s\u1ebd truy\u1ec1n v\u00e0o Internet v\u00e0 \u0111\u01b0\u1ee3c m\u00e1y ch\u1ee7 DNS Recusor nh\u1eadn.<\/p>\n<p>Sau \u0111\u00f3, DNS Recusor s\u1ebd truy v\u1ea5n m\u1ed9t m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh g\u1ed1c Root DNS.<\/p>\n<p>Sau \u0111\u00f3, Root DNS s\u1ebd ph\u1ea3n h\u1ed3i tr\u00ecnh ph\u00e2n gi\u1ea3i b\u1eb1ng \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u00e1y ch\u1ee7 DNS c\u1ee7a Mi\u1ec1n c\u1ea5p cao nh\u1ea5t (TLD) (nh\u01b0 l\u00e0 .vn), n\u01a1i l\u01b0u tr\u1eef th\u00f4ng tin cho c\u00e1c mi\u1ec1n c\u1ee7a n\u00f3. Khi t\u00ecm ki\u1ebfm <strong>halink.vn<\/strong>, y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch truy c\u1eadp \u0111\u01b0\u1ee3c h\u01b0\u1edbng t\u1edbi TLD .vn.<\/p>\n<p>Sau \u0111\u00f3, tr\u00ecnh ph\u00e2n gi\u1ea3i \u0111\u01b0a ra y\u00eau c\u1ea7u t\u1edbi .vn TLD.<\/p>\n<p>Sau \u0111\u00f3, m\u00e1y ch\u1ee7 TLD s\u1ebd ph\u1ea3n h\u1ed3i b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u1ee7a <a href=\"https:\/\/halink.vn\/bang-gia-ten-mien\">domain<\/a>, <strong>halink.vn<\/strong>.<\/p>\n<p>Cu\u1ed1i c\u00f9ng, m\u00e1y ch\u1ee7 DNS Recusor g\u1eedi m\u1ed9t truy v\u1ea5n \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh (Authoritative Name Server) c\u1ee7a t\u00ean mi\u1ec1n.<\/p>\n<p>\u0110\u1ecba ch\u1ec9 IP cho <strong>halink.vn<\/strong> sau \u0111\u00f3 \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 tr\u00ecnh ph\u00e2n gi\u1ea3i t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh.<\/p>\n<p>Sau \u0111\u00f3, DNS Recusor s\u1ebd ph\u1ea3n h\u1ed3i l\u1ea1i tr\u00ecnh duy\u1ec7t web b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP c\u1ee7a mi\u1ec1n \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u ban \u0111\u1ea7u.<\/p>\n<p>Sau khi 8 b\u01b0\u1edbc tra c\u1ee9u DNS \u0111\u00e3 tr\u1ea3 l\u1ea1i \u0111\u1ecba ch\u1ec9 IP cho <strong>halink.vn<\/strong>, tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n y\u00eau c\u1ea7u t\u1ea3i n\u1ed9i dung trang web.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong qu\u00e1 tr\u00ecnh truy c\u1eadp website, m\u00e1y ch\u1ee7 hosting kh\u00f4ng th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n. Thay v\u00e0o \u0111\u00f3 n\u00f3 ch\u1ec9 hi\u1ec3u \u0111\u01b0\u1ee3c th\u00f4ng qua d\u00e3y \u0111\u1ecba ch\u1ec9 IP. Do \u0111\u00f3, ph\u1ea3i c\u00f3 m\u1ed9t \u0111\u01a1n v\u1ecb trung gian ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n v\u1edbi \u0111\u1ecba ch\u1ec9 IP, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 DNS. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/halink.vn\/tim-hieu-ve-dns\/\" class=\"more-link\">\u0110\u1ecdc ti\u1ebfp<span class=\"screen-reader-text\"> &#8220;T\u00ecm hi\u1ec3u v\u1ec1 DNS&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":2895,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[375],"tags":[332,386,318,321,322,333],"_links":{"self":[{"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/posts\/2894"}],"collection":[{"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/comments?post=2894"}],"version-history":[{"count":3,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/posts\/2894\/revisions"}],"predecessor-version":[{"id":2897,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/posts\/2894\/revisions\/2897"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/media\/2895"}],"wp:attachment":[{"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/media?parent=2894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/categories?post=2894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/halink.vn\/wp-json\/wp\/v2\/tags?post=2894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}