{"id":3807,"date":"2024-11-26T20:44:42","date_gmt":"2024-11-26T13:44:42","guid":{"rendered":"https:\/\/dncloud.net\/blog\/?p=3807"},"modified":"2024-11-26T20:44:42","modified_gmt":"2024-11-26T13:44:42","slug":"dns-la-gi-tam-quan-trong-cua-giao-thuc-dns","status":"publish","type":"post","link":"https:\/\/dncloud.net\/blog\/dns-la-gi-tam-quan-trong-cua-giao-thuc-dns\/","title":{"rendered":"DNS l\u00e0 g\u00ec? T\u1ea7m quan tr\u1ecdng c\u1ee7a giao th\u1ee9c DNS"},"content":{"rendered":"<p>Truy c\u1eadp website tr\u00ean internet \u0111\u00e3 tr\u1edf th\u00e0nh th\u00f3i quen c\u1ee7a b\u1ea1n c\u0169ng nh\u01b0 nhi\u1ec1u ng\u01b0\u1eddi. Nh\u01b0ng b\u1ea1n \u0111\u00e3 bao gi\u1edd t\u1ef1 h\u1ecfi r\u1eb1ng t\u1ea1i sao nh\u1eadp m\u1ed9t t\u00ean mi\u1ec1n v\u00e0o tr\u00ecnh duy\u1ec7t m\u00e0 b\u1ea1n l\u1ea1i c\u00f3 th\u1ec3 truy c\u1eadp nh\u1eefng trang web mong mu\u1ed1n m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i nh\u1edb nh\u1eefng d\u00e3y s\u1ed1 IP ph\u1ee9c t\u1ea1p, \u0111\u00f3 l\u00e0 nh\u1edd h\u1ec7 th\u1ed1ng ph\u00e2n gi\u1ea3i DNS. V\u1eady DNS l\u00e0 g\u00ec? V\u00e0 t\u1ea1i sao n\u00f3 c\u00f3 th\u1ec3 truy c\u1eadp trang web b\u1eb1ng t\u00ean mi\u1ec1n m\u00e0 kh\u00f4ng c\u1ea7n nh\u1eadp \u0111\u1ecba ch\u1ec9 IP. C\u00f9ng DNCLOUD t\u00ecm hi\u1ec3u ngay trong b\u00e0i vi\u1ebft chi d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<h2>DNS l\u00e0 g\u00ec?<\/h2>\n<p>DNS l\u00e0 c\u1ee5m t\u1eeb \u0111\u01b0\u1ee3c vi\u1ebft t\u1eaft b\u1edfi Domain Name System l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng gi\u00fap ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i <a href=\"https:\/\/dncloud.net\/blog\/domain-la-gi-chi-tiet-ve-ten-mien-cho-nguoi-moi\/\">t\u00ean mi\u1ec1n<\/a> (domain name) th\u00e0nh <a href=\"https:\/\/dncloud.net\/blog\/dia-chi-ip-la-gi\/\">\u0111\u1ecba ch\u1ec9 IP<\/a>. \u0110\u00e2y l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh quan tr\u1ecdng cho ph\u00e9p b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o trang web. N\u1ebfu DNS l\u00e0 h\u1ec7 th\u1ed1ng ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n th\u00ec <a href=\"https:\/\/dncloud.net\/blog\/nameserver-la-gi\/\">Nameserver<\/a> m\u1ed9t th\u00e0nh ph\u1ea7n trong h\u1ec7 th\u1ed1ng DNS, n\u00f3 c\u00f3 ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd c\u00e1c b\u1ea3n ghi DNS c\u1ee7a t\u00ean mi\u1ec1n.<\/p>\n<div id=\"attachment_3833\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-3833\" class=\"wp-image-3833 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-la-gi.png\" alt=\"DNS l\u00e0 g\u00ec?\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-la-gi.png 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-la-gi-300x158.png.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-la-gi-1024x538.png.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-la-gi-150x79.png.webp 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-la-gi-768x403.png.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-la-gi-1170x614.png.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-la-gi-585x307.png.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi.png 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi-300x158.png 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi-1024x538.png 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi-150x79.png 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi-768x403.png 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi-1170x614.png 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-la-gi-585x307.png 585w&quot;}\" \/><p id=\"caption-attachment-3833\" class=\"wp-caption-text\">DNS l\u00e0 g\u00ec?<\/p><\/div>\n<p>Nh\u1edd c\u00f3 DNS m\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n ph\u1ea3i nh\u1eadp \u0111\u1ecba ch\u1ec9 IP m\u00e0 thay v\u00e0o \u0111\u00f3 ng\u01b0\u1eddi d\u00f9ng s\u1ebd nh\u1eadp t\u00ean mi\u1ec1n m\u1ed9t c\u00e1ch ng\u1eafn g\u1ecdn v\u00e0 d\u1ec5 nh\u1edb.<\/p>\n<p><strong>V\u00ed d\u1ee5:<\/strong> Khi b\u1ea1n nh\u1eadp t\u00ean mi\u1ec1n<strong> &#8220;dncloud.net&#8221;<\/strong> v\u00e0o tr\u00ecnh duy\u1ec7t, DNS s\u1ebd c\u00f3 vai tr\u00f2 t\u00ecm \u0111\u1ecba ch\u1ec9 IP ph\u00f9 h\u1ee3p v\u1edbi t\u00ean mi\u1ec1n m\u00e0 b\u1ea1n \u0111\u00e3 nh\u1eadp. K\u1ebft qu\u1ea3 l\u00e0 tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i \u0111\u1ebfn m\u00e1y ch\u1ee7 ch\u1ee9a n\u1ed9i dung trang web ph\u00f9 h\u1ee3p v\u00e0 hi\u1ec3n th\u1ecb cho b\u1ea1n.<\/p>\n<p><a href=\"https:\/\/dncloud.net\/ten-mien\/\"><em><strong>Tham kh\u1ea3o ngay domain t\u1ea1i DNCLOUD ch\u1ec9 v\u1edbi 39,000 \u0111\u1ed3ng\/ n\u0103m.<\/strong><\/em><\/a><\/p>\n<h2>DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n<div id=\"attachment_3834\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3834\" class=\"wp-image-3834 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/cach-thuc-hoat-dong-cua-dns.jpg.webp\" alt=\"DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/cach-thuc-hoat-dong-cua-dns.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/cach-thuc-hoat-dong-cua-dns-300x158.jpg 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/cach-thuc-hoat-dong-cua-dns-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/cach-thuc-hoat-dong-cua-dns-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/cach-thuc-hoat-dong-cua-dns-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/cach-thuc-hoat-dong-cua-dns-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/cach-thuc-hoat-dong-cua-dns-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" loading=\"lazy\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/cach-thuc-hoat-dong-cua-dns-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3834\" class=\"wp-caption-text\">DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/p><\/div>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DNS:<\/p>\n<ul>\n<li>Khi b\u1ea1n nh\u1eadp t\u00ean mi\u1ec1n v\u00e0o tr\u00ecnh duy\u1ec7t v\u00ed d\u1ee5 nh\u01b0<strong> &#8220;dncloud.net&#8221;<\/strong> tr\u00ecnh duy\u1ec7t s\u1ebd xem b\u1ed9 nh\u1edb &#8220;cache&#8221; \u0111\u1ec3 t\u00ecm xem \u0111\u00e3 l\u01b0u \u0111\u1ecba ch\u1ec9 IP n\u00e0y hay ch\u01b0a, n\u1ebfu c\u00f3 th\u00ec qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i DNS k\u1ebft th\u00fac t\u1ea1i b\u01b0\u1edbc n\u00e0y.<\/li>\n<li>N\u1ebfu ch\u01b0a t\u00ecm th\u1ea5y \u0111\u1ecba ch\u1ec9 IP trong b\u1ed9 nh\u1edb &#8220;cache&#8221;, y\u00eau c\u1ea7u n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn <strong>DNS Resolver<\/strong> (b\u1ed9 ph\u00e2n gi\u1ea3i DNS), th\u01b0\u1eddng l\u00e0 c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet (ISP).<\/li>\n<li>Ti\u1ebfp theo \u0111\u00f3 s\u1ebd truy v\u1ea5n qua c\u00e1c DNS Server, <strong>Resolver<\/strong> g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn <strong>root server,<\/strong> n\u01a1i s\u1ebd ch\u1ec9 \u0111\u1ecbnh <strong>TLD (Top-Level Domain)<\/strong> server ph\u00f9 h\u1ee3p (v\u00ed d\u1ee5: server cho mi\u1ec1n &#8220;<a href=\"https:\/\/dncloud.net\/ten-mien\/\">.net, .com, .vn,.<\/a>..&#8221;).<\/li>\n<li>Sau \u0111\u00f3, <strong>root server<\/strong> ch\u1ec9 t\u1edbi <strong>TLD server<\/strong>, n\u01a1i gi\u1eef th\u00f4ng tin c\u1ee7a t\u00ean mi\u1ec1n c\u1ea5p cao (v\u00ed d\u1ee5: t\u00ean mi\u1ec1n .net, .com). <strong>TLD server<\/strong> sau \u0111\u00f3 ch\u1ec9 t\u1edbi <strong>authoritative DNS server<\/strong> c\u1ee7a t\u00ean mi\u1ec1n c\u1ea7n tra c\u1ee9u, n\u01a1i l\u01b0u tr\u1eef b\u1ea3n ghi ch\u00ednh th\u1ee9c c\u1ee7a t\u00ean mi\u1ec1n.<\/li>\n<li>Cu\u1ed1i c\u00f9ng, <strong>Authoritative DNS server<\/strong> s\u1ebd tr\u1ea3 v\u1ec1 <strong>\u0111\u1ecba ch\u1ec9 IP<\/strong> cho<strong> resolver<\/strong>, v\u00e0 <strong>resolver<\/strong> g\u1eedi l\u1ea1i cho tr\u00ecnh duy\u1ec7t. Cu\u1ed1i c\u00f9ng, tr\u00ecnh duy\u1ec7t k\u1ebft n\u1ed1i \u0111\u1ebfn m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef <a href=\"https:\/\/dncloud.net\/blog\/website-la-gi\/\">website<\/a><strong> (dncloud.net)<\/strong> v\u00e0 t\u1ea3i trang.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, DNS l\u00e0 m\u1ed9t ph\u1ea7n r\u1ea5t quan tr\u1ecdng kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a h\u1ea1 t\u1ea7ng internet, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n nh\u1eadp t\u00ean mi\u1ec1n ng\u1eafn g\u1ecdn d\u1ec5 nh\u1edb m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i nh\u1edb nh\u1eefng d\u00e3y s\u1ed1 IP ph\u1ee9c t\u1ea1p. Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra nhanh ch\u00f3ng th\u01b0\u1eddng l\u00e0 t\u00ednh tr\u00ean mili d\u00e2y.<\/p>\n<h2>Nh\u1eefng ch\u1ee9c n\u0103ng c\u1ee7a DNS<\/h2>\n<p>DNS \u0111\u00f3ng vai tr\u00f2 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n, gi\u00fap ng\u01b0\u1eddi d\u00f9ng t\u00ecm ki\u1ebfm website m\u1ed9t c\u00e1ch nhanh ch\u00f3ng, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng c\u1ea7n bi\u1ebft c\u1ee7a DNS <a href=\"https:\/\/dncloud.net\/blog\/server-la-gi\/\">server<\/a>.<\/p>\n<ol>\n<li><strong>DNS gi\u00fap ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n:<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a DNS gi\u00fap ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp website d\u1ec5 d\u00e0ng m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i nh\u1edb nh\u1eefng d\u00e3y s\u1ed1 IP ph\u1ee9c t\u1ea1p.<\/li>\n<li><strong>Qu\u1ea3n l\u00ed domain:<\/strong> DNS cho ph\u00e9p b\u1ea1n t\u1ed5 ch\u1ee9c v\u00e0 qu\u1ea3n l\u00ed t\u00ean mi\u1ec1n bao g\u1ed3m nh\u01b0 \u0111\u0103ng k\u00ed, gia h\u1ea1n v\u00e0 h\u1ee7y t\u00ean mi\u1ec1n. N\u00f3 gi\u00fap x\u00e1c \u0111\u1ecbnh th\u00f4ng tin quy\u1ec1n s\u1ee1 h\u1eefu c\u1ee7a ng\u01b0\u1eddi d\u00f9ng li\u00ean quan \u0111\u1ebfn domain.<\/li>\n<li><strong>T\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u00e2p c\u1ee7a trang web:<\/strong> B\u1eb1ng c\u00e1ch l\u01b0u tr\u1eef th\u00f4ng tin b\u1ed9 nh\u1edb b\u1eb1ng cache, khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp l\u1ea1i t\u00ean mi\u1ec1n \u0111\u00e3 t\u00ecm ki\u1ebfm tr\u01b0\u1edbc \u0111\u00f3. Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp l\u1ea1i m\u00e1y ch\u1ee7 s\u1ebd tr\u1ea3 l\u1ea1i \u0111\u1ecba ch\u1ec9 IP v\u00e0 truy c\u1eadp m\u1ed9t c\u00e1ch nhanh ch\u00f3ng m\u00e0 kh\u00f4ng c\u1ea7n li\u00ean quan \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS kh\u00e1c.<\/li>\n<li><strong>Qu\u1ea3n l\u00ed l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng:<\/strong> DNS c\u00f2n gi\u00fap qu\u1ea3n l\u00ed v\u00e0 \u0111i\u1ec1u ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp, \u0111\u1ea3m b\u1ea3o r\u1eb1ng internet v\u1eabn ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru v\u00e0 hi\u1ec7u qu\u1ea3 tr\u00e1nh c\u00e1c t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i.<\/li>\n<li>Ngo\u00e0i vi\u1ec7c ph\u00e2n t\u00e1n v\u00e0 cung c\u1ea5p \u0111\u1ecba ch\u1ec9 IP, DNS c\u00f2n c\u00f3 th\u1ec3 cung c\u1ea5p m\u1ed9t s\u1ed1 th\u00f4ng tin b\u1ed5 sung nh\u01b0:<\/li>\n<\/ol>\n<ul>\n<li><strong>MX records (Th\u00f4ng tin th\u01b0 m\u00e1y ch\u1ee7): <\/strong>Gi\u00fap x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 email cho t\u00ean mi\u1ec1n, \u0111\u1ea3m nh\u1eadn g\u1eedi v\u00e0 nh\u1eadn email cho m\u1ed9t t\u00ean mi\u1ec1n.<\/li>\n<li><strong>SRV records (Th\u00f4ng tin d\u1ecbch v\u1ee5): <\/strong>Gi\u00fap cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft c\u00e1c d\u1ecbch v\u1ee5 m\u1ea1ng v\u00e0 t\u00ean mi\u1ec1n. Bao g\u1ed3m \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 v\u00e0 k\u1ebft n\u1ed1i t\u01b0\u01a1ng \u1ee9ng cho t\u1eebng d\u1ecbch v\u1ee5.<\/li>\n<li><strong>TXT records (Th\u00f4ng tin b\u1ea3o m\u1eadt): <\/strong>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c minh danh t\u00ednh v\u00e0 cung c\u1ea5p c\u00e1c th\u00f4ng tin b\u1ea3o m\u1eadt cho domain.<\/li>\n<\/ul>\n<h2>Nh\u1eefng lo\u1ea1i b\u1ea3n ghi DNS server<\/h2>\n<h3>1. Root name server<\/h2>\n<div id=\"attachment_3835\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3835\" class=\"wp-image-3835 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server.jpg.webp\" alt=\"Root name server\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/root-name-server-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/root-name-server-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" loading=\"lazy\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/root-name-server-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3835\" class=\"wp-caption-text\">Root name server<\/p><\/div>\n<p>Root name server l\u00e0 m\u1ed9t ph\u1ea7n r\u1ea5t quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n, n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t lo\u1ea1i d\u1ecbch v\u1ee5 ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n g\u1ed1c. V\u00e0 tr\u00ean th\u1ebf gi\u1edbi hi\u1ec7n nay c\u00f3 kho\u1ea3ng 12 DNS root Server.<\/p>\n<p>Root name server gi\u1eefa th\u00f4ng tin c\u00e1c <strong>Top level domain (TLD)<\/strong> nh\u01b0<strong> .com, .org, .net, .edu,&#8230;<\/strong> v\u00e0 c\u00e1c t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t nh\u01b0<strong> .uk, .us, .fr,..<\/strong> Khi c\u00f3 y\u00eau c\u1ea7u truy v\u1ea5n m\u1ed9t t\u00ean mi\u1ec1n, Root name server s\u1ebd x\u00e1c \u0111\u1ecbnh ph\u1ea7n m\u1edf r\u1ed9ng c\u1ee7a t\u00ean mi\u1ec1n \u0111\u00f3 \u0111\u1ec3 t\u00ecm ra m\u00e1y ch\u1ee7 ph\u00f9 h\u1ee3p.<\/p>\n<p>DNS root server s\u1ebd ch\u1ecbu tr\u00e1ch nhi\u1ec7m qu\u1ea3n l\u00ed c\u00e1c TLD. V\u00e0 khi m\u1ed9t client c\u00f3 y\u00eau c\u1ea7u \u0111\u1ec3 ph\u00e2n gi\u1ea3i m\u1ed9t t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP, client s\u1ebd g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn DNS g\u1ea7n n\u00f3 nh\u1ea5t. Th\u01b0\u1eddng l\u00e0 DNS c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet <strong>(ISP)<\/strong>. N\u1ebfu DNS c\u1ee7a ISP kh\u00f4ng c\u00f3 th\u00f4ng tin trong cache, n\u00f3 s\u1ebd k\u1ebft n\u1ed1i t\u1edbi m\u1ed9t trong c\u00e1c Root Name Server \u0111\u1ec3 t\u00ecm ki\u1ebfm.<\/p>\n<h3 id=\"local-name-server\" class=\"wp-block-heading ftwp-heading\">2. Local Name Server<\/h2>\n<div id=\"attachment_3836\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3836\" class=\"wp-image-3836 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server.jpg.webp\" alt=\"Local Name Server\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/local-name-server-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/local-name-server-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/local-name-server-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3836\" class=\"wp-caption-text\">Local Name Server<\/p><\/div>\n<p>Local Name Server hay <strong>DNS Resolver ho\u1eb7c DNS Cache<\/strong> l\u00e0 m\u1ed9t lo\u1ea1i m\u00e1y ch\u1ee7 DNS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thi\u1ebft l\u1eadp t\u1ea1i m\u1ed9t nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet (ISP) ho\u1eb7c trong m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a m\u1ed9t t\u1ed5 ch\u1ee9c n\u00e0o \u0111\u00f3. N\u00f3 th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 ch\u1ee9a th\u00f4ng tin \u0111\u1ec3 truy su\u1ea5t v\u00e0 t\u00ecm ki\u1ebfm m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n.<\/p>\n<h3>3. DNS Recursor<\/h2>\n<p>DNS Recursor hay DNS Resolver l\u00e0 m\u1ed9t lo\u1ea1i m\u00e1y ch\u1ee7 c\u00f3 nhi\u1ec7m v\u1ee5 nh\u1eadn y\u00eau c\u1ea7u v\u00e0 x\u1eed l\u00ed ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP. Khi b\u1ea1n nh\u1eadp m\u1ed9t t\u00ean mi\u1ec1n v\u00e0o tr\u00ecnh duy\u1ec7t <strong>DNS Recursor<\/strong> s\u1ebd t\u00ecm ki\u1ebfm \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00ean mi\u1ec1n \u0111\u00f3 th\u00f4ng qua c\u00e1c m\u00e1y ch\u1ee7 DNS kh\u00e1c nhau.<\/p>\n<div id=\"attachment_3837\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3837\" class=\"wp-image-3837 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-recursor-la-gi.png\" alt=\"DNS Recursor l\u00e0 g\u00ec?\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-recursor-la-gi.png 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-recursor-la-gi-300x158.png.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-recursor-la-gi-1024x538.png.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-recursor-la-gi-150x79.png.webp 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-recursor-la-gi-768x403.png.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-recursor-la-gi-1170x614.png.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-recursor-la-gi-585x307.png.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi.png 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi-300x158.png 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi-1024x538.png 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi-150x79.png 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi-768x403.png 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi-1170x614.png 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-recursor-la-gi-585x307.png 585w&quot;}\" \/><p id=\"caption-attachment-3837\" class=\"wp-caption-text\">DNS Recursor l\u00e0 g\u00ec?<\/p><\/div>\n<h3>4. TLD Name Server<\/h2>\n<p>TLD Name Server l\u00e0 lo\u1ea1i m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t, n\u00f3 ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u00e0 qu\u1ea3n l\u00ed v\u00e0 l\u01b0u tr\u1eef th\u00f4ng tin cho c\u00e1c t\u00ean mi\u1ec1n c\u1ea5p cao. C\u00e1c TLD n\u00e0y bao g\u1ed3m c\u00e1c ph\u1ea7n m\u1edf r\u1ed9ng nh\u01b0 <code>.com<\/code>, <code>.org<\/code>, <code>.net<\/code>, v\u00e0 c\u00e1c t\u00ean mi\u1ec1n qu\u1ed1c gia nh\u01b0 <code>.vn<\/code>, <code>.uk<\/code>, <code>.jp<\/code>,&#8230;<\/p>\n<div id=\"attachment_3838\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3838\" class=\"wp-image-3838 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server.jpg.webp\" alt=\"TLD Name Server\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/tld-name-server-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/tld-name-server-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/tld-name-server-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3838\" class=\"wp-caption-text\">TLD Name Server<\/p><\/div>\n<h3>5. Authoritative Name Server<\/h2>\n<p>Authoritative Name Server hay m\u00e1y ch\u1ee7 t\u00ean \u1ee7y quy\u1ec1n l\u00e0 m\u00e1y ch\u1ee7 DNS ch\u1ecbu tr\u00e1ch nhi\u1ec7m cung c\u1ea5p th\u00f4ng tin ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady v\u1ec1 m\u1ed9t t\u00ean mi\u1ec1n c\u1ee5 th\u1ec3. N\u00f3 gi\u00fap l\u01b0u tr\u1eef th\u00f4ng tin v\u1ec1 domain v\u00e0 \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng. Authoritative Name <a href=\"https:\/\/dncloud.net\/blog\/cloud-server-la-gi\/\">Server<\/a> l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng DNS, \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh trong vi\u1ec7c cung c\u1ea5p th\u00f4ng tin ch\u00ednh x\u00e1c v\u1ec1 t\u00ean mi\u1ec1n.<\/p>\n<div id=\"attachment_3839\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3839\" class=\"wp-image-3839 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi.jpg.webp\" alt=\"Authoritative Name Server l\u00e0 g\u00ec?\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/authoritative-name-server-la-gi-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/authoritative-name-server-la-gi-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/authoritative-name-server-la-gi-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3839\" class=\"wp-caption-text\">Authoritative Name Server l\u00e0 g\u00ec?<\/p><\/div>\n<h2>Nh\u1eefng lo\u1ea1i b\u1ea3n ghi DNS ph\u1ed5 bi\u1ebfn<\/h2>\n<p>Hi\u1ec7n nay, c\u00f3 nhi\u1ec1u lo\u1ea1i DNS nh\u01b0ng c\u00f3 7 lo\u1ea1i ph\u1ed5 bi\u1ec3n bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>A Record: <\/strong>D\u00f9ng \u0111\u1ec3 tr\u1ecf domain website t\u1edbi \u0111\u1ecba ch\u1ec9 IP c\u1ee5 th\u1ec3. \u0110\u00e2y \u0111\u01b0\u1ee3c xem l\u00e0 b\u1ea3n ghi DNS \u0111\u01a1n gi\u1ea3n v\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/li>\n<li><strong>CNAME Record<\/strong>: D\u00f9ng \u0111\u1ec3 tr\u1ecf m\u1ed9t doamin \u0111\u1ebfn m\u1ed9t domain kh\u00e1c. Gi\u00fap h\u1ee3p nh\u1ea5t nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00e1c v\u1ec1 m\u1ed9t t\u00ean mi\u1ec1n ch\u00ednh.<\/li>\n<li><strong>AAAA Record<\/strong>: Ch\u1ee9c n\u0103ng t\u01b0\u01a1ng t\u1ef1 A Record nh\u01b0ng d\u00e0nh cho IPv6 (\u0111\u1ecba ch\u1ec9 IP phi\u00ean b\u1ea3n 6). Cung c\u1ea5p kh\u1ea3 n\u0103ng truy c\u1eadp v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u0111\u1ecba ch\u1ec9 IP.<\/li>\n<li><strong>MX Record<\/strong>: C\u00f3 t\u00e1c d\u1ee5ng d\u00f9ng \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh m\u00e1y ch\u1ee7 n\u00e0o s\u1ebd qu\u1ea3n l\u00ed d\u1ecbch v\u1ee5 email, v\u1edbi c\u00e1c m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean kh\u00e1c nhau. B\u1ea3n ghi n\u00e0y gi\u00fap thi\u1ebft l\u1eadp \u0111\u1ecba ch\u1ec9 mail server cho t\u00ean mi\u1ec1n gi\u00fap qu\u1ea3n l\u00ed email cho doamin.<\/li>\n<li><strong>TXT Record<\/strong>: B\u1ea3n ghi n\u00e0y cho ph\u00e9p l\u01b0u th\u00f4ng tin l\u01b0u tr\u1eef \u0111\u1ebfn t\u00ean mi\u1ec1n, v\u00e0 n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c email (nh\u01b0 SPF, DKIM) \u0111\u1ea3m b\u1ea3o an to\u00e0n c\u00e1c d\u1ecbch v\u1ee5 li\u00ean quan \u0111\u1ebfn t\u00ean mi\u1ec1n.<\/li>\n<li><strong>SRV Record<\/strong>: \u0110\u00e2y l\u00e0 m\u1ed9t b\u1ea3n ghi \u0111\u1eb7c bi\u1ec7t d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh d\u1ecbch v\u1ee5 n\u00e0o \u0111ang ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u1ed5ng (port) n\u00e0o. B\u1ea3n ghi n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c d\u1ecbch v\u1ee5 y\u00eau c\u1ea7u x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c port, \u01b0u ti\u00ean v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng (weight) c\u1ee7a d\u1ecbch v\u1ee5.<\/li>\n<li><strong>NS Record<\/strong>: L\u00e0 b\u1ea3n ghi ch\u1ec9 \u0111\u1ecbnh m\u00e1y ch\u1ee7 DNS ch\u1ecbu tr\u00e1ch nhi\u1ec7m ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n.<\/li>\n<\/ul>\n<h2>H\u01b0\u1edbng d\u1eabn c\u00e1ch s\u1eed d\u1ee5ng DNS<\/h2>\n<p>N\u1ebfu c\u00e1c b\u1ea1n ch\u01b0a bi\u1ebft c\u00e1ch s\u1eed d\u1ee5ng DNS th\u00ec <a href=\"https:\/\/dncloud.net\/\">DNCLOUD<\/a> h\u01b0\u1edbng d\u1eabn b\u1ea1n chi ti\u1ebft c\u00e1c b\u01b0\u1edbc sau \u0111\u00e2y:<\/p>\n<ul>\n<li>B\u01b0\u1edbc 1: V\u00e0o start menu &gt; G\u00f5 <strong>Control Panel &gt; sau \u0111\u00f3 nh\u1ea5n ch\u1ecdn\u00a0Control Panel<\/strong><\/li>\n<li>B\u01b0\u1edbc 2: Nh\u1ea5n v\u00e0o <strong>View network status and task<\/strong>.<\/li>\n<\/ul>\n<div id=\"attachment_3840\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3840\" class=\"wp-image-3840 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117.jpg.webp\" alt=\"Nh\u1ea5n v\u00e0o View network status and task\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/117-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/117-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/117-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3840\" class=\"wp-caption-text\">Nh\u1ea5n v\u00e0o View network status and task<\/p><\/div>\n<ul>\n<li>B\u01b0\u1edbc 3: Truy c\u1eadp v\u00e0o nh\u00e0 m\u1ea1ng internet m\u00e0 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng.<\/li>\n<li>B\u01b0\u1edbc 4: Nh\u1ea5n\u00a0<strong>Properties &gt; <\/strong>Ch\u1ecdn <strong>Internet Protocol Version 4 &gt;<\/strong> Nh\u1ea5n v\u00e0o <strong>Properties <\/strong>\u0111\u1ec3 thay \u0111\u1ed5i DNS sau \u0111\u00f3 nh\u1ea5n<strong> OK.<\/strong><\/li>\n<\/ul>\n<div id=\"attachment_3841\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3841\" class=\"wp-image-3841 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118.jpg.webp\" alt=\"Nh\u1ea5n\u00a0Properties &gt; Ch\u1ecdn Internet Protocol Version 4 &gt; Nh\u1ea5n v\u00e0o Properties\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/118-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/118-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/118-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3841\" class=\"wp-caption-text\">Nh\u1ea5n\u00a0Properties &gt; Ch\u1ecdn Internet Protocol Version 4 &gt; Nh\u1ea5n v\u00e0o Properties<\/p><\/div>\n<p>&nbsp;<\/p>\n<div id=\"attachment_3842\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3842\" class=\"wp-image-3842 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/119.jpg.webp\" alt=\"Thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 sau \u0111\u00f3 nh\u1ea5n ok\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/119.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/119-300x158.jpg 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/119-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/119-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/119-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/119-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/119-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/119-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3842\" class=\"wp-caption-text\">Thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 sau \u0111\u00f3 nh\u1ea5n ok<\/p><\/div>\n<h2><strong>So s\u00e1nh s\u1ef1 kh\u00e1c nhau gi\u1eefa gi\u1eefa Public DNS v\u00e0 Private DNS<\/strong><\/h2>\n<div id=\"attachment_3843\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3843\" class=\"wp-image-3843 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns.jpg.webp\" alt=\"So s\u00e1nh s\u1ef1 kh\u00e1c nhau gi\u1eefa gi\u1eefa Public DNS v\u00e0 Private DNS\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/so-sanh-public-dns-va-private-dns-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/so-sanh-public-dns-va-private-dns-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/so-sanh-public-dns-va-private-dns-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3843\" class=\"wp-caption-text\">So s\u00e1nh s\u1ef1 kh\u00e1c nhau gi\u1eefa gi\u1eefa Public DNS v\u00e0 Private DNS<\/p><\/div>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh s\u1ef1 kh\u00e1c nhau gi\u1eefa Public DNS v\u00e0 Private DNS:<\/p>\n\n<div class=\"pcrstb-wrap\"><table id=\"tablepress-19\" class=\"tablepress tablepress-id-19\">\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-1\">\n\t<td class=\"column-1\">Ti\u00eau ch\u00ed<\/td><td class=\"column-2\">Public DNS<\/td><td class=\"column-3\">Private DNS<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">\u0110\u1ecbnh ngh\u0129a <\/td><td class=\"column-2\">L\u00e0 c\u00e1c m\u00e1y ch\u1ee7 DNS c\u00f4ng c\u1ed9ng, \u0111\u01b0\u1ee3c cung c\u1ea5p mi\u1ec5n ph\u00ed ho\u1eb7c theo d\u1ecbch v\u1ee5 c\u00f4ng khai.<\/td><td class=\"column-3\">L\u00e0 c\u00e1c m\u00e1y ch\u1ee7 DNS ri\u00eang t\u01b0, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng n\u1ed9i b\u1ed9 ho\u1eb7c ri\u00eang bi\u1ec7t.<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Truy c\u1eadp<\/td><td class=\"column-2\">M\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c.<\/td><td class=\"column-3\">Ch\u1ec9 c\u00f3 b\u1ed9 ph\u1eadn n\u1ed9i b\u1ed9 hay c\u00f9ng m\u1ed9t t\u1ed5 ch\u1ee9c m\u1edbi truy c\u1eadp \u0111\u01b0\u1ee3c<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">T\u00ednh b\u1ea3o m\u1eadt<\/td><td class=\"column-2\">D\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng v\u00e0 d\u1ec5 b\u1ecb gi\u1ea3 m\u1ea1o DNS, b\u1ea3o m\u1eadt th\u1ea5p.<\/td><td class=\"column-3\">B\u1ea3o m\u1eadt cao, \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi n\u1ed9i b\u1ed9<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Quy\u1ec1n ki\u1ec3m so\u00e1t<\/td><td class=\"column-2\">Do c\u00e1c nh\u00e0 cung c\u1ea5p DNS qu\u1ea3n l\u00ed nh\u01b0 (Google DNS, Cloudflare DNS).<\/td><td class=\"column-3\">Do m\u1ed9t t\u1ed5 ch\u1ee9c hay m\u1ed9t nh\u00f3m qu\u1ea3n l\u00ed v\u00e0 to\u00e0n quy\u1ec1n \u0111i\u1ec1u h\u00e0nh v\u00e0 c\u1ea5u h\u00ecnh.<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Hi\u1ec7u su\u1ea5t\t<\/td><td class=\"column-2\">Ch\u1eadm h\u01a1n so v\u1edbi Private do c\u00f3 nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/td><td class=\"column-3\">T\u1ed1c \u0111\u1ed9 m\u1ea1ng nhanh h\u01a1n do c\u00f3 \u00edt ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">M\u1ee5c \u0111\u00edch S\u1eed d\u1ee5ng\t<\/td><td class=\"column-2\">Ph\u00f9 h\u1ee3p v\u1edbi c\u00e1 nh\u00e2n v\u00e0 doanh nghi\u1ec7p nh\u1ecf c\u1ea7n t\u1ed1c \u0111\u1ed9 v\u00e0 truy c\u1eadp c\u00f4ng khai<\/td><td class=\"column-3\">Ph\u00f9 h\u1ee3p v\u1edbi doanh nghi\u1ec7p v\u00e0 c\u00f3 t\u1ed5 ch\u1ee9c l\u1edbn y\u00eau c\u1ea7u t\u00ednh b\u1ea3o m\u1eadt v\u00e0 qu\u1ea3n l\u00ed domain n\u1ed9i b\u1ed9.<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n\n<h2><strong>T\u1ed5ng h\u1ee3p m\u1ed9t s\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 r\u00f2 r\u0129 DNS<\/strong><\/h2>\n<div id=\"attachment_3844\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3844\" class=\"wp-image-3844 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns.jpg.webp\" alt=\"T\u1ed5ng h\u1ee3p m\u1ed9t s\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 r\u00f2 r\u0129 DNS\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/ro-ri-dns-300x158.jpg 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/ro-ri-dns-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3844\" class=\"wp-caption-text\">T\u1ed5ng h\u1ee3p m\u1ed9t s\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 r\u00f2 r\u0129 DNS<\/p><\/div>\n<h3>1. Kh\u00e1i ni\u1ec7m v\u1ec1 r\u00f5 r\u0129 DNS<\/h2>\n<p>R\u00f2 r\u0129 DNS l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng khi c\u00e1c truy v\u1ea5n DNS c\u1ee7a ng\u01b0\u1eddi d\u1ee5ng b\u1ecb l\u1ed9 ra ngo\u00e0i internet. Nguy\u00ean nh\u00e2n ch\u00ednh \u0111\u01b0\u1ee3c k\u1ec3 \u0111\u1ebfn nh\u01b0 VPN kh\u00f4ng b\u1ea3o m\u1eadt DNS \u0111\u00fang c\u00e1ch, h\u1ec7 \u0111i\u1ec1u h\u00e0nh chuy\u1ec3n truy v\u1ea5n DNS ra ngo\u00e0i VPN, S\u1eed d\u1ee5ng c\u00e1c DNS c\u00f4ng c\u1ed9ng m\u00e0 kh\u00f4ng c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt kh\u00e1c.<\/p>\n<div id=\"attachment_3845\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3845\" class=\"wp-image-3845 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi.jpg.webp\" alt=\"Kh\u00e1i ni\u1ec7m v\u1ec1 r\u00f5 r\u0129 DNS\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/ro-ri-dns-la-gi-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/ro-ri-dns-la-gi-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/ro-ri-dns-la-gi-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3845\" class=\"wp-caption-text\">Kh\u00e1i ni\u1ec7m v\u1ec1 r\u00f5 r\u0129 DNS<\/p><\/div>\n<blockquote><p>L\u01b0u \u00fd: Khi b\u1ea1n truy c\u1eadp v\u00e0o m\u1ed9t trang web, DNS s\u1ebd gi\u00fap b\u1ea1n t\u00ecm ra \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 ch\u1ee9a website \u0111\u00f3 v\u00e0 tr\u1ea3 v\u1ec1 n\u1ed9i dung website cho b\u1ea1n. Tuy nhi\u00ean, n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng VPN nh\u01b0ng y\u00eau c\u1ea7u DNS v\u1eabn g\u1eedi qua nh\u00e0 cung c\u1ea5p internet m\u00e0 kh\u00f4ng g\u1eedi qua nh\u00e0 cung c\u1ea5p VPN \u0111i\u1ec1u n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y ra t\u00ecnh tr\u1ea1ng r\u00f2 r\u0129 DNS khi\u1ebfn th\u00f4ng tin t\u00ecm ki\u1ebfm c\u1ee7a b\u1ea1n c\u00f3 nguy c\u01a1 b\u1ecb l\u1ed9 ra ngo\u00e0i.<\/p><\/blockquote>\n<h3>2. C\u00e1ch ki\u1ec3m tra v\u00e0 kh\u1eafc ph\u1ee5c t\u00ecnh tr\u1ea1ng r\u00f2 r\u0129 DNS<\/h2>\n<p><strong>\u0110\u1ec3 ki\u1ec3m tra t\u00ecnh tr\u1ea1ng r\u00f2 r\u0129 DNS, DNCLOUD ch\u1ec9 b\u1ea1n 2 c\u00e1ch sau:<\/strong><\/p>\n<ul>\n<li>D\u00f9ng c\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn: B\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp c\u00e1c trang web nh\u01b0 <a href=\"https:\/\/dnsleaktest.com\/\" rel=\"noopener\">dnsleaktest.com<\/a>, <a href=\"https:\/\/browserleaks.com\/dns\" target=\"_blank\" rel=\"nofollow noopener\">browserleaks.com<\/a>, <a href=\"https:\/\/ipleak.net\/\" target=\"_blank\" rel=\"nofollow noopener\">ipleak.net<\/a> nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 t\u1ed1t nh\u1ea5t hi\u1ec7n nay. \u0110\u1ec3 ki\u1ec3m tra, b\u1ea1n ch\u1ec9 c\u1ea7n k\u1ebft n\u1ed1i VPN v\u00e0 truy c\u1eadp v\u00e0o website sau \u0111\u00f3 c\u00e1c th\u00f4ng s\u1ed1 s\u1ebd hi\u1ec7n ra gi\u00fap b\u1ea1n ph\u00e2n t\u00edch m\u00ecnh c\u00f3 b\u1ecb r\u00f2 r\u0129 DNS hay kh\u00f4ng.<\/li>\n<li>B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra qua VPN c\u1ee7a b\u1ea1n: M\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p VPN c\u00f3 c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra r\u00f2 r\u0129 DNS, b\u1ea1n c\u00f3 th\u1ec3 v\u00e0o \u0111\u00f3 ki\u1ec3m tra v\u00e0 \u0111\u00e1nh gi\u00e1 xem DNS c\u1ee7a b\u1ea1n c\u00f3 b\u1ecb r\u00f2 r\u0129 hay kh\u00f4ng.<\/li>\n<\/ul>\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c t\u00ecnh tr\u1ea1ng r\u00f2 r\u0129 DNS<\/strong><\/p>\n<ul>\n<li><strong>Ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p VPN uy t\u00edn:<\/strong> H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p VPN \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 c\u00e1c t\u00ednh n\u0103ng ch\u00f3ng r\u00f2 r\u0129 DNS.<\/li>\n<li><strong>C\u1eadp nh\u1eadt VPN:<\/strong> Nh\u1eefng phi\u00ean b\u1ea3n VPN c\u0169 c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea3m b\u1ea3o b\u1ea3o m\u1eadt t\u1ed1t, b\u1ea1n c\u00f3 th\u1ec3 c\u1eadp nh\u1eadt VPN c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ea1n lu\u00f4n s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n t\u1ed1t nh\u1ea5t.<\/li>\n<li><strong>C\u1ea5u h\u00ecnh l\u1ea1i DNS v\u00e0 VPN:<\/strong> B\u1ea1n c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t c\u00e1c t\u00ednh n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng r\u00f2 r\u0129 DNS, hi\u1ec7n nay m\u1ed9t s\u1ed1 nh\u00e0 cung c\u1ea5p VPN \u0111\u00e3 cung c\u1ea5p t\u00ednh n\u0103ng n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 b\u1eadt n\u00f3 trong ph\u1ea7n c\u00e0i \u0111\u1eb7t. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 chuy\u1ec3n sang Google DNS (8.8.8.8 v\u00e0 8.8.4.4) ho\u1eb7c Cloudflare DNS (1.1.1.1).<\/li>\n<li><strong>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i c\u00e1c thi\u1ebft b\u1ecb:<\/strong> Say khi thay \u0111\u1ed5i c\u00e1c c\u00e0i \u0111\u1eb7t h\u00e3y kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c thay \u0111\u1ed5i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch.<\/li>\n<li><strong>C\u1ea5u h\u00ecnh l\u1ea1i DNS tr\u00ean thi\u1ebft b\u1ecb:<\/strong> B\u1ea1n n\u00ean ki\u1ec3m tra xem thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 \u0111ang t\u1ef1 \u0111\u1ed9ng s\u1eed d\u1ee5ng DNS qua ISP hay kh\u00f4ng. N\u1ebfu c\u00f3 h\u00e3y \u0111\u1eb7t l\u1ea1i DNS c\u1ee7a DNS qua VPN \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 truy v\u1ea5n \u0111\u1ec1u \u0111i qua VPN.<\/li>\n<\/ul>\n<h3><strong>3. T\u1ea1i sao DNS th\u01b0\u1eddng d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng<\/strong><\/h2>\n<p>DNS l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 r\u1ea5t quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng internet ch\u00ednh v\u00ec v\u1eady d\u1ecbch v\u1ee5 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u1eafm t\u1edbi b\u1edfi c\u00e1c hacker v\u1edbi m\u1ee5c ti\u00eau ch\u1ee7 y\u1ebfu l\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1eb7c ng\u1eaft k\u1ebft n\u1ed1i c\u00e1c trang web ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp th\u00f4ng qua c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DoS), trong \u0111\u00f3 m\u00e1y ch\u1ee7 c\u00f3 t\u00ean \u0111\u1ec7 quy th\u01b0\u1eddng l\u00e0 m\u1ee5c ti\u00eau c\u1ee7a hacker v\u00ec ch\u00fang l\u01b0u tr\u1eef ph\u1ea3n h\u1ed3i c\u1ee7a DNS v\u00e0 c\u00f3 b\u1ecb chi\u1ebfm quy\u1ec1n \u0111\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i ho\u1eb7c \u0111\u00e1nh c\u1eafp c\u00e1c th\u00f4ng tin quan tr\u1ecdng t\u00f9y v\u00e0o m\u1ee5c \u0111\u00edch c\u1ee7a ch\u00fang.<\/p>\n<p><a href=\"https:\/\/dncloud.net\/blog\/ssl-la-gi\/\"><em><strong>\u0110\u1ecdc th\u00eam: SSL l\u00e0 g\u00ec? T\u1ea1i sao SSL l\u1ea1i quan tr\u1ecdng v\u1edbi website.<\/strong><\/em><\/a><\/p>\n<h2>Top 5 DNS ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay<\/h2>\n<p>Hi\u1ec7n nay c\u00f3 kh\u00e1 nhi\u1ec1u lo\u1ea1i DNS, DNCLOUD s\u1ebd li\u1ec7t k\u00ea cho b\u1ea1n top 5 DNS ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay.<\/p>\n<h3>1. DNS Google<\/h2>\n<div id=\"attachment_3846\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3846\" class=\"wp-image-3846 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google.jpg.webp\" alt=\"DNS Google\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google-300x158.jpg.webp 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-google-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-google-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-google-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3846\" class=\"wp-caption-text\">DNS Google<\/p><\/div>\n<p><strong>DNS Google<\/strong> \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng nh\u1ea5t hi\u1ec7n nay b\u1edfi v\u00ec c\u00f3 t\u1ed1c \u0111\u1ed9 nhanh v\u00e0 d\u1ec5 s\u1eedu d\u1ee5ng. B\u1ea1n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh DNS Google theo \u0111\u1ecba ch\u1ec9 sau <strong>(8.8.8.8<\/strong>\u00a0v\u00e0\u00a0<strong>8.8.4.4)<\/strong>.<\/p>\n<h3>2. <b>DNS Cloudflare<\/b><\/h2>\n<div id=\"attachment_3847\" style=\"width: 1210px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3847\" class=\"wp-image-3847 size-full\" src=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-cloudflare.jpg.webp\" alt=\"DNS Cloudflare\" width=\"1200\" height=\"630\" srcset=\"https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-cloudflare.jpg.webp 1200w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-cloudflare-300x158.jpg 300w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-cloudflare-1024x538.jpg.webp 1024w, https:\/\/dncloud.net\/blog\/wp-content\/uploads\/dns-cloudflare-150x79.jpg 150w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-cloudflare-768x403.jpg.webp 768w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-cloudflare-1170x614.jpg.webp 1170w, https:\/\/dncloud.net\/blog\/wp-content\/smush-webp\/dns-cloudflare-585x307.jpg.webp 585w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" data-smush-webp-fallback=\"{&quot;src&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare.jpg&quot;,&quot;srcset&quot;:&quot;https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare.jpg 1200w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare-300x158.jpg 300w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare-1024x538.jpg 1024w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare-150x79.jpg 150w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare-768x403.jpg 768w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare-1170x614.jpg 1170w, https:\\\/\\\/dncloud.net\\\/blog\\\/wp-content\\\/uploads\\\/dns-cloudflare-585x307.jpg 585w&quot;}\" \/><p id=\"caption-attachment-3847\" class=\"wp-caption-text\">DNS Cloudflare<\/p><\/div>\n<p><strong>DNS Cloudflare<\/strong> l\u00e0 d\u1ecbch v\u1ee5 DNS \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi cloudflare, d\u1ecbch v\u1ee5 n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p \u0111\u1ed9 nhanh ch\u00f3ng, \u0111\u1ed9 tin c\u1eady cao v\u00e0 b\u1ea3o m\u1eadt t\u1ed1t cho c\u00e1c trang web. DNS Cloudflare c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh m\u1ea1ng v\u1edbi \u0111\u1ecba ch\u1ec9 IP <strong>(1.1.1.1 v\u00e0 1.0.0.1).<\/strong><\/p>\n<h3>3. DNS VNPT<\/h2>\n<p>DNS VNPT l\u00e0 m\u1ed9t trong nh\u1eefng nh\u00e0 cung c\u1ea5p m\u1ea1ng h\u00e0ng \u0111\u1ea7u Vi\u1ec7t Nam, VNPT cung c\u1ea5p r\u1ea5t nhi\u1ec1u d\u1ecbch v\u1ee5 kh\u00e1c bao g\u1ed3m c\u1ea3 t\u00ean mi\u1ec1n. DNS VNPT c\u00f3 c\u00e1c \u0111\u1ecba ch\u1ec9 sau <strong>(203.162.4.191<\/strong>\u00a0v\u00e0\u00a0<strong>203.162.4.190).<\/strong><\/p>\n<h3>4. <b>DNS OpenDNS<\/b><\/h2>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t lo\u1ea1i d\u1ecbch v\u1ee5 cung c\u1ea5p DNS mi\u1ec5n ph\u00ed \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi c\u00f4ng ty Cisco, n\u1ed5i b\u1eadt v\u1edbi kh\u1ea3 n\u0103ng c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 truy c\u1eadp Internet v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt cho ng\u01b0\u1eddi d\u00f9ng. <b>DNS OpenDNS <\/b>c\u00f3 c\u00e1c \u0111\u1ecba ch\u1ec9 sau <strong>(208.67.222.222 v\u00e0 208.67.220.220).\u200b<\/strong><\/p>\n<h3 id=\"ftoc-heading-38\" class=\"ftwp-heading\"><b>5. DNS FPT<\/b><\/h2>\n<p><strong>DNS FPT<\/strong> l\u00e0 d\u1ecbch v\u1ee5 DNS \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi FPT Telecom, m\u1ed9t trong nh\u1eefng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet l\u1edbn t\u1ea1i Vi\u1ec7t Nam. <strong>DNS FPT <\/strong>c\u00f3 c\u00e1c \u0111\u1ecba ch\u1ec9 sau<strong> (210.245.24.20 v\u00e0 210.245.24.22).<\/strong><\/p>\n<h2>L\u1eddi k\u1ebft<\/h2>\n<p>Hi v\u1ecdng v\u1edbi b\u00e0i vi\u1ebft tr\u00ean s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 DNS v\u00e0 c\u00e1ch \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3. N\u1ebfu c\u00f3 th\u1eafc m\u1eafc g\u00ec vui l\u00f2ng \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn ph\u00eda b\u00ean d\u01b0\u1edbi \u0111\u1ed9i ng\u0169 DNCLOUD s\u1ebd h\u1ed7 tr\u1ee3 b\u1ea1n s\u1edbm nh\u1ea5t c\u00f3 th\u1ec3. Ngo\u00e0i ra DNCLOUD c\u0169ng cung c\u1ea5p r\u1ea5t nhi\u1ec1u d\u1ecbch v\u1ee5 kh\u00e1c nh\u01b0<a href=\"https:\/\/dncloud.net\/cloud-hosting\/\"> cloud hosting<\/a>, <a href=\"https:\/\/dncloud.net\/cloud-vps\/\">VPS<\/a>, <a href=\"https:\/\/dncloud.net\/ten-mien\/\">t\u00ean mi\u1ec1n<\/a> b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o ngay <a href=\"https:\/\/dncloud.net\/\">t\u1ea1i \u0111\u00e2y<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Truy c\u1eadp website tr\u00ean internet \u0111\u00e3 tr\u1edf th\u00e0nh th\u00f3i quen c\u1ee7a b\u1ea1n c\u0169ng nh\u01b0 nhi\u1ec1u ng\u01b0\u1eddi.&hellip;<\/p>\n","protected":false},"author":1,"featured_media":3832,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[132,306],"tags":[304,274,156,307,308,295,302,296,297,299,301,283,300,298,303],"class_list":["post-3807","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc","category-dns-kien-thuc","tag-authoritative-name-server","tag-dia-chi-ip","tag-dns","tag-dns-1-1-1-1-la-gi","tag-dns-8-8-8-8-la-gi","tag-dns-la-gi","tag-dns-recursor","tag-domain-name-system","tag-domain-name-system-la-gi","tag-internet","tag-local-name-server","tag-nameserver","tag-root-name-server","tag-ten-mien","tag-tld-name-server"],"_links":{"self":[{"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/posts\/3807","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/comments?post=3807"}],"version-history":[{"count":0,"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/posts\/3807\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/media\/3832"}],"wp:attachment":[{"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/media?parent=3807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/categories?post=3807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dncloud.net\/blog\/wp-json\/wp\/v2\/tags?post=3807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}