{"id":1929,"date":"2023-10-03T04:56:22","date_gmt":"2023-10-03T04:56:22","guid":{"rendered":"https:\/\/appdigi.net\/?p=1929"},"modified":"2026-10-22T20:13:50","modified_gmt":"2026-10-22T20:13:50","slug":"7-may-chu-dns-tot-nhat-nen-su-dung-o-brazil-vao-nam-2023","status":"publish","type":"post","link":"https:\/\/appdigi.net\/vi\/7-melhores-servidores-dns-para-usar-no-brasil-em-2023\/","title":{"rendered":"M\u00e1y ch\u1ee7 DNS t\u1ea1i Brazil: N\u00ean s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 n\u00e0o, c\u00e1ch thay \u0111\u1ed5i ch\u00fang tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0 khi n\u00e0o th\u00ec kh\u00f4ng c\u1ea7n thi\u1ebft."},"content":{"rendered":"<p class=\"wp-block-paragraph\">B\u1ea1n \u0111\u00e3 bao gi\u1edd t\u1ef1 h\u1ecfi l\u00e0m th\u1ebf n\u00e0o c\u00f3 th\u1ec3 truy c\u1eadp m\u1ed9t trang web b\u1eb1ng c\u00e1ch nh\u1eadp m\u1ed9t c\u00e1i t\u00ean d\u1ec5 nh\u1edb thay v\u00ec m\u1ed9t d\u00e3y s\u1ed1 ch\u01b0a? Ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u00e0y ch\u00ednh l\u00e0... <strong>DNS<\/strong> \u2014 H\u1ec7 th\u1ed1ng T\u00ean mi\u1ec1n (DNS). \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ph\u1ea7n v\u00f4 h\u00ecnh nh\u1ea5t c\u1ee7a internet, \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 m\u1ed9t trong s\u1ed1 \u00edt nh\u1eefng ph\u1ea7n b\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i trong v\u00f2ng hai ph\u00fat, ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed v\u00e0 c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch DNS l\u00e0m g\u00ec, vi\u1ec7c thay \u0111\u1ed5i m\u00e1y ch\u1ee7 s\u1ebd thay \u0111\u1ed5i \u0111i\u1ec1u g\u00ec, v\u00e0\u2014quan tr\u1ecdng kh\u00f4ng k\u00e9m\u2014 <strong>nh\u1eefng g\u00ec kh\u00f4ng thay \u0111\u1ed5i<\/strong>, V\u00ec c\u00f3 r\u1ea5t nhi\u1ec1u th\u00f4ng tin sai l\u1ec7ch \u0111ang lan truy\u1ec1n ngo\u00e0i kia. Sau \u0111\u00f3 l\u00e0 th\u00f4ng tin v\u1ec1 c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 c\u00f4ng c\u1ed9ng n\u1ed5i ti\u1ebfng nh\u1ea5t c\u00f9ng \u0111\u1ecba ch\u1ec9 c\u1ee7a h\u1ecd, nh\u1eefng g\u00ec m\u1ed7i nh\u00e0 cung c\u1ea5p cam k\u1ebft v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0, quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i tr\u00ean Android v\u00e0 iPhone, quan \u0111i\u1ec3m c\u1ee7a Brazil v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y, v\u00e0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p m\u00e0 quy\u1ebft \u0111\u1ecbnh t\u1ed1t nh\u1ea5t ch\u00ednh l\u00e0... <strong>KH\u00d4NG<\/strong> \u0111\u1ec3 thay th\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tr\u00ean th\u1ef1c t\u1ebf, DNS l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1y t\u00ednh kh\u00f4ng giao ti\u1ebfp b\u1eb1ng t\u00ean m\u00e0 b\u1eb1ng \u0111\u1ecba ch\u1ec9 s\u1ed1. Khi b\u1ea1n nh\u1eadp \u0111\u1ecba ch\u1ec9 trang web, thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n s\u1ebd h\u1ecfi... <strong>m\u00e1y ch\u1ee7 DNS \u0111\u1ec7 quy<\/strong> S\u1ed1 n\u00e0o t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00ean \u0111\u00f3? M\u00e1y ch\u1ee7 s\u1ebd t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi, tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3, v\u00e0 ch\u1ec9 sau \u0111\u00f3 k\u1ebft n\u1ed1i m\u1edbi b\u1eaft \u0111\u1ea7u. B\u01b0\u1edbc n\u00e0y di\u1ec5n ra nhanh \u0111\u1ebfn m\u1ee9c kh\u00f4ng ai \u0111\u1ec3 \u00fd\u2014nh\u01b0ng n\u00f3 x\u1ea3y ra h\u00e0ng ch\u1ee5c l\u1ea7n tr\u00ean m\u1ed7i trang, b\u1edfi v\u00ec m\u1ed9t trang web hi\u1ec7n \u0111\u1ea1i t\u1ea3i n\u1ed9i dung t\u1eeb nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo m\u1eb7c \u0111\u1ecbnh, t\u00e1c v\u1ee5 n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi m\u00e1y ch\u1ee7 c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet c\u1ee7a b\u1ea1n, \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh t\u1ef1 \u0111\u1ed9ng khi b\u1ea1n k\u1ebft n\u1ed1i. Thay \u0111\u1ed5i DNS ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p kh\u00e1c cho truy v\u1ea5n n\u00e0y. Kh\u00f4ng h\u01a1n th\u1ebf n\u1eefa \u2014 \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao thay \u0111\u1ed5i n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c v\u00e0 \u00edt r\u1ee7i ro.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng g\u00ec thay \u0111\u1ed5i khi chuy\u1ec3n \u0111\u1ed5i m\u00e1y ch\u1ee7 DNS \u2014 v\u00e0 nh\u1eefng g\u00ec kh\u00f4ng thay \u0111\u1ed5i \u2014 s\u1ebd thay \u0111\u1ed5i.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>N\u00f3 kh\u00f4ng thay \u0111\u1ed5i.<\/strong> T\u1ed1c \u0111\u1ed9 k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n. N\u1ebfu b\u1ea1n c\u00f3 t\u1ed1c \u0111\u1ed9 100 Mbps, b\u1ea1n s\u1ebd ti\u1ebfp t\u1ee5c c\u00f3 t\u1ed1c \u0111\u1ed9 100 Mbps. DNS kh\u00f4ng truy\u1ec1n t\u1ea3i n\u1ed9i dung trang web: n\u00f3 ch\u1ec9 tr\u1ea3 l\u1eddi truy v\u1ea5n ban \u0111\u1ea7u. Kh\u00f4ng c\u00f3 m\u00e1y ch\u1ee7 DNS n\u00e0o t\u0103ng b\u0103ng th\u00f4ng \u0111\u00e3 k\u00fd h\u1ee3p \u0111\u1ed3ng c\u1ee7a b\u1ea1n, v\u00e0 b\u1ea5t k\u1ef3 ai h\u1ee9a h\u1eb9n &quot;internet nhanh h\u01a1n&quot; b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i DNS c\u1ee7a b\u1ea1n \u0111\u1ec1u \u0111ang ph\u00f3ng \u0111\u1ea1i qu\u00e1 m\u1ee9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Thay \u0111\u1ed5i<\/strong> Th\u1eddi gian ph\u1ea3n h\u1ed3i \u2014 s\u1ed1 mili gi\u00e2y gi\u1eefa c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi. V\u00ec b\u01b0\u1edbc n\u00e0y \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i nhi\u1ec1u l\u1ea7n tr\u00ean m\u1ed7i trang, m\u1ed9t tr\u00ecnh ph\u00e2n gi\u1ea3i nhanh s\u1ebd t\u1ea1o c\u1ea3m gi\u00e1c c\u00e1c trang web &quot;t\u1ea3i nhanh h\u01a1n&quot;, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi truy c\u1eadp l\u1ea7n \u0111\u1ea7u v\u00e0o m\u1ed7i t\u00ean mi\u1ec1n. \u0110\u00f3 l\u00e0 m\u1ed9t l\u1ee3i \u00edch th\u1ef1c s\u1ef1 v\u00e0 khi\u00eam t\u1ed1n, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng mili gi\u00e2y, ch\u1ee9 kh\u00f4ng ph\u1ea3i megabit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>N\u00f3 c\u0169ng thay \u0111\u1ed5i.<\/strong> Ai bi\u1ebft \u0111\u01b0\u1ee3c b\u1ea1n \u0111ang truy c\u1eadp nh\u1eefng trang web n\u00e0o n\u1ebfu b\u1ea1n kh\u00f4ng tin t\u01b0\u1edfng v\u00e0o tr\u00ecnh ph\u00e2n gi\u1ea3i m\u1eb7c \u0111\u1ecbnh; nh\u1eefng t\u00ean mi\u1ec1n n\u00e0o b\u1ecb ch\u1eb7n trong tr\u01b0\u1eddng h\u1ee3p m\u00e1y ch\u1ee7 c\u00f3 t\u00ednh n\u0103ng l\u1ecdc; v\u00e0 \u0111\u1ed9 tin c\u1eady khi DNS c\u1ee7a nh\u00e0 cung c\u1ea5p kh\u00f4ng \u1ed5n \u0111\u1ecbnh \u2014 m\u1ed9t tri\u1ec7u ch\u1ee9ng \u0111i\u1ec3n h\u00ecnh c\u1ee7a &quot;internet v\u1eabn ho\u1ea1t \u0111\u1ed9ng, nh\u01b0ng c\u00e1c trang web kh\u00f4ng t\u1ea3i \u0111\u01b0\u1ee3c&quot;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ecnh h\u00ecnh c\u00f3 th\u1ec3 c\u00f2n t\u1ed3i t\u1ec7 h\u01a1n.<\/strong> C\u00f3 m\u1ed9t \u0111i\u1ec1u, v\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng ai \u0111\u1ec1 c\u1eadp \u0111\u1ebfn: \u0111\u00f3 l\u00e0 ch\u1ecdn m\u00e1y ch\u1ee7 n\u1ed9i dung g\u1ea7n b\u1ea1n nh\u1ea5t. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch trong ph\u1ea7n v\u1ec1 Brazil \u1edf ph\u00eda d\u01b0\u1edbi, v\u00e0 l\u00e0 l\u00fd do ch\u00ednh khi\u1ebfn m\u1ed9t s\u1ed1 ng\u01b0\u1eddi c\u1ea3m th\u1ea5y m\u1ecdi th\u1ee9 &quot;tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n&quot; sau khi chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c m\u00e1y ch\u1ee7 DNS c\u00f4ng c\u1ed9ng \u0111\u00e3 bi\u1ebft<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Cloudflare<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ecba ch\u1ec9:<\/strong> 1.1.1.1 v\u00e0 1.0.0.1. <strong>T\u00ean DNS \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a:<\/strong> m\u1ed9t.m\u1ed9t.m\u1ed9t.m\u1ed9t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y th\u01b0\u1eddng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p nhanh nh\u1ea5t cho h\u1ea7u h\u1ebft c\u00e1c ph\u00e9p \u0111o v\u00e0 d\u1ec5 nh\u1edb nh\u1ea5t. C\u00f4ng ty kh\u1eb3ng \u0111\u1ecbnh kh\u00f4ng l\u01b0u tr\u1eef \u0111\u1ecba ch\u1ec9 c\u1ee7a ng\u01b0\u1eddi truy c\u1eadp t\u1ec7p tr\u00ean \u1ed5 \u0111\u0129a v\u00e0 s\u1ebd x\u00f3a c\u00e1c b\u1ea3n ghi ho\u1ea1t \u0111\u1ed9ng trong th\u1eddi gian ng\u1eafn, v\u1edbi c\u00e1c b\u00e1o c\u00e1o ki\u1ec3m to\u00e1n b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1. C\u00f3 hai bi\u1ebfn th\u1ec3 v\u1edbi b\u1ed9 l\u1ecdc: <strong>1.1.1.2<\/strong>, c\u00f3 ch\u1ee9c n\u0103ng ch\u1eb7n c\u00e1c t\u00ean mi\u1ec1n \u0111\u1ed9c h\u1ea1i, v\u00e0 <strong>1.1.1.3<\/strong>, T\u00ednh n\u0103ng n\u00e0y c\u0169ng ch\u1eb7n n\u1ed9i dung d\u00e0nh cho ng\u01b0\u1eddi l\u1edbn \u2014 h\u1eefu \u00edch nh\u01b0 m\u1ed9t h\u00ecnh th\u1ee9c ki\u1ec3m so\u00e1t nh\u1eb9 nh\u00e0ng c\u1ee7a ph\u1ee5 huynh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS c\u00f4ng c\u1ed9ng c\u1ee7a Google<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ecba ch\u1ec9:<\/strong> 8.8.8.8 v\u00e0 8.8.4.4. <strong>T\u00ean DNS \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a:<\/strong> dns.google<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u00e1y ch\u1ee7 c\u00f4ng c\u1ed9ng l\u00e2u \u0111\u1eddi nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi, v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u1ed5ng l\u1ed3 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh kh\u00f3 c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua. C\u00f4ng ty tuy\u00ean b\u1ed1 r\u1eb1ng h\u1ecd l\u01b0u gi\u1eef c\u00e1c b\u1ea3n ghi t\u1ea1m th\u1eddi trong th\u1eddi gian ng\u1eafn v\u00e0 c\u00e1c b\u1ea3n ghi v\u0129nh vi\u1ec5n d\u01b0\u1edbi d\u1ea1ng \u1ea9n danh, m\u00e0 kh\u00f4ng li\u00ean k\u1ebft truy v\u1ea5n v\u1edbi t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n. H\u1ecd kh\u00f4ng l\u1ecdc n\u1ed9i dung: h\u1ecd tr\u1ea3 v\u1ec1 nh\u1eefng g\u00ec hi\u1ec7n c\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quad9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ecba ch\u1ec9:<\/strong> 9.9.9.9 v\u00e0 149.112.112.112. <strong>T\u00ean DNS \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a:<\/strong> dns.quad9.net<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c \u0111i\u1ec1u h\u00e0nh b\u1edfi m\u1ed9t t\u1ed5 ch\u1ee9c phi l\u1ee3i nhu\u1eadn c\u00f3 tr\u1ee5 s\u1edf t\u1ea1i Th\u1ee5y S\u0129, m\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 ch\u1eb7n c\u00e1c t\u00ean mi\u1ec1n li\u00ean quan \u0111\u1ebfn c\u00e1c tr\u00f2 l\u1eeba \u0111\u1ea3o v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ed9c h\u1ea1i, b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng danh s\u00e1ch th\u00f4ng tin t\u00ecnh b\u00e1o v\u1ec1 c\u00e1c m\u1ed1i \u0111e d\u1ecda. N\u00f3 kh\u1eb3ng \u0111\u1ecbnh kh\u00f4ng thu th\u1eadp d\u1eef li\u1ec7u nh\u1eadn d\u1ea1ng ng\u01b0\u1eddi d\u00f9ng. \u0110\u00e2y l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n c\u00f3 m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i \u0111\u1eb7t b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OpenDNS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ecba ch\u1ec9:<\/strong> 208.67.222.222 v\u00e0 208.67.220.220<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ecbch v\u1ee5 c\u1ee7a Cisco, m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u k\u1ef3 c\u1ef1u trong l\u0129nh v\u1ef1c n\u00e0y, n\u1ed5i ti\u1ebfng v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn l\u1ecdc theo danh m\u1ee5c th\u00f4ng qua \u0111\u0103ng k\u00fd. C\u00f3 m\u1ed9t phi\u00ean b\u1ea3n d\u00e0nh cho s\u1eed d\u1ee5ng t\u1ea1i nh\u00e0, \u0111\u00f3 l\u00e0... <strong>FamilyShield<\/strong> (208.67.222.123 v\u00e0 208.67.220.123), ch\u1eb7n n\u1ed9i dung ng\u01b0\u1eddi l\u1edbn m\u00e0 kh\u00f4ng c\u1ea7n c\u1ea5u h\u00ecnh. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn \u0111i\u1ec3n h\u00ecnh cho nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n l\u1ecdc n\u1ed9i dung tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn t\u1ea1i nh\u00e0.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AdGuard DNS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ecba ch\u1ec9:<\/strong> 94.140.14.14 v\u00e0 94.140.15.15. <strong>T\u00ean DNS \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a:<\/strong> dns.adguard-dns.com<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3 ch\u1eb7n c\u00e1c t\u00ean mi\u1ec1n qu\u1ea3ng c\u00e1o v\u00e0 theo d\u00f5i \u1edf c\u1ea5p \u0111\u1ed9 ph\u00e2n gi\u1ea3i, \u0111i\u1ec1u n\u00e0y c\u0169ng ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u1ee9ng d\u1ee5ng, kh\u00f4ng ch\u1ec9 trong tr\u00ecnh duy\u1ec7t. T\u00e1c d\u1ee5ng ph\u1ee5 th\u00ec ai c\u0169ng bi\u1ebft: \u0111\u00f4i khi m\u1ed9t trang web ho\u1eb7c \u1ee9ng d\u1ee5ng b\u1ecb l\u1ed7i v\u00ec n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t t\u00ean mi\u1ec1n b\u1ecb ch\u1eb7n. B\u1ea1n n\u00ean bi\u1ebft \u0111i\u1ec1u n\u00e0y tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u th\u1eed nghi\u1ec7m \u2014 v\u00e0 h\u00e3y nh\u1edb r\u1eb1ng c\u00e1c trang web mi\u1ec5n ph\u00ed, bao g\u1ed3m c\u1ea3 trang n\u00e0y, \u0111\u1ec1u \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi qu\u1ea3ng c\u00e1o.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/appdigi.net\/wp-content\/uploads\/2023\/10\/i588771.jpeg\" alt=\"C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 DNS tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng c\u1ee7a b\u1ea1n\" class=\"wp-image-1930\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">DNS m\u00e3 h\u00f3a: DoH v\u00e0 DoT l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 m\u1ed9t chi ti\u1ebft khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi ng\u1ea1c nhi\u00ean: ngay c\u1ea3 khi duy\u1ec7t c\u00e1c trang web c\u00f3 bi\u1ec3u t\u01b0\u1ee3ng \u1ed5 kh\u00f3a, <strong>Tra c\u1ee9u DNS truy\u1ec1n th\u1ed1ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng<\/strong>. B\u1ea5t k\u1ef3 ai \u0111\u1ee9ng gi\u1eefa hai b\u00ean\u2014nh\u00e0 cung c\u1ea5p, ch\u1ee7 s\u1edf h\u1eefu m\u1ea1ng Wi-Fi c\u00f4ng c\u1ed9ng\u2014\u0111\u1ec1u kh\u00f4ng th\u1ec3 xem n\u1ed9i dung c\u1ee7a c\u00e1c trang, nh\u01b0ng h\u1ecd l\u1ea1i th\u1ea5y danh s\u00e1ch c\u00e1c t\u00ean mi\u1ec1n m\u00e0 b\u1ea1n y\u00eau c\u1ea7u. Bi\u1ec3u t\u01b0\u1ee3ng \u1ed5 kh\u00f3a b\u1ea3o v\u1ec7 nh\u1eefng g\u00ec b\u1ea1n l\u00e0m tr\u00ean trang web; n\u00f3 kh\u00f4ng b\u1ea3o v\u1ec7 c\u00e2u h\u1ecfi \u0111\u00e3 m\u1edf trang web \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00ednh v\u00ec m\u1ee5c \u0111\u00edch gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y m\u00e0... <strong>DNS qua HTTPS (DoH)<\/strong> v\u00e0 <strong>DNS qua TLS (DoT)<\/strong>. Hai b\u01b0\u1edbc n\u00e0y m\u00e3 h\u00f3a truy v\u1ea5n gi\u1eefa thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u00e0 tr\u00ecnh ph\u00e2n gi\u1ea3i \u0111\u00e3 ch\u1ecdn. Tr\u00ean Android, t\u00ednh n\u0103ng n\u00e0y xu\u1ea5t hi\u1ec7n nh\u01b0 sau: <strong>DNS ri\u00eang t\u01b0<\/strong> v\u00e0 s\u1eed d\u1ee5ng DoT \u2014 \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao anh \u1ea5y y\u00eau c\u1ea7u m\u1ed9t c\u00e1i. <em>t\u00ean<\/em> \u0110\u00f3 l\u00e0 s\u1ed1 m\u00e1y ch\u1ee7, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t con s\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Li\u1ec7u \u0111i\u1ec1u \u0111\u00f3 c\u00f3 \u0111\u00e1ng gi\u00e1? Tr\u00ean m\u1ea1ng c\u00f4ng c\u1ed9ng, ch\u1eafc ch\u1eafn l\u00e0 c\u00f3. C\u00f2n \u1edf nh\u00e0, \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 s\u1ef1 tin t\u01b0\u1edfng: b\u1ea1n ng\u1eebng hi\u1ec3n th\u1ecb c\u00e1c truy v\u1ea5n c\u1ee7a m\u00ecnh cho nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 v\u00e0 b\u1eaft \u0111\u1ea7u hi\u1ec3n th\u1ecb ch\u00fang cho ng\u01b0\u1eddi \u0111i\u1ec1u h\u00e0nh m\u00e1y ch\u1ee7 ph\u00e2n gi\u1ea3i. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 ri\u00eang t\u01b0 tuy\u1ec7t \u0111\u1ed1i \u2014 m\u00e0 l\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn ng\u01b0\u1eddi \u0111\u1ec3 tin t\u01b0\u1edfng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch thay \u0111\u1ed5i DNS tr\u00ean Android<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>M\u1edf <strong>C\u00e0i \u0111\u1eb7t &gt; M\u1ea1ng v\u00e0 internet<\/strong> (tr\u00ean m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb, <strong>K\u1ebft n\u1ed1i<\/strong>).<\/li>\n<li>T\u00ecm ki\u1ebfm <strong>DNS ri\u00eang t\u01b0<\/strong>. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y t\u00f9y ch\u1ecdn n\u00e0y trong m\u1ee5c &quot;C\u00e0i \u0111\u1eb7t k\u1ebft n\u1ed1i kh\u00e1c&quot;.<\/li>\n<li>S\u1ef1 l\u1ef1a ch\u1ecdn <strong>T\u00ean m\u00e1y ch\u1ee7 c\u1ee7a nh\u00e0 cung c\u1ea5p DNS ri\u00eang<\/strong>.<\/li>\n<li>Nh\u1eadp t\u00ean d\u1ecbch v\u1ee5 \u0111\u00e3 ch\u1ecdn: <code>m\u1ed9t.m\u1ed9t.m\u1ed9t.m\u1ed9t<\/code>, <code>dns.google<\/code>, <code>dns.quad9.net<\/code> ho\u1eb7c <code>dns.adguard-dns.com<\/code>.<\/li>\n<li>L\u01b0u l\u1ea1i v\u00e0 ki\u1ec3m tra b\u1eb1ng c\u00e1ch m\u1edf m\u1ed9t s\u1ed1 trang web.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u01afu \u0111i\u1ec3m l\u1edbn c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y: DNS ri\u00eang r\u1ea5t h\u1eefu \u00edch cho <strong>Wi-Fi v\u00e0 d\u1eef li\u1ec7u di \u0111\u1ed9ng c\u00f9ng l\u00fac<\/strong>, Truy v\u1ea5n s\u1ebd \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a. \u0110\u1ec3 ho\u00e0n t\u00e1c, h\u00e3y quay l\u1ea1i m\u00e0n h\u00ecnh t\u01b0\u01a1ng t\u1ef1 v\u00e0 ch\u1ecdn &quot;T\u1ef1 \u0111\u1ed9ng&quot;. N\u1ebfu m\u1ed9t m\u1ea1ng Wi-Fi c\u1ee5 th\u1ec3 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng sau khi thay \u0111\u1ed5i \u2014 tr\u01b0\u1eddng h\u1ee3p \u0111i\u1ec3n h\u00ecnh l\u00e0 c\u1ed5ng \u0111\u0103ng nh\u1eadp m\u1ea1ng c\u00f4ng c\u1ed9ng \u2014 ch\u1ec9 c\u1ea7n t\u1ea1m th\u1eddi t\u1eaft n\u00f3 \u0111i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch thay \u0111\u1ed5i DNS tr\u00ean iPhone<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>M\u1edf <strong>C\u00e0i \u0111\u1eb7t &gt; Wi-Fi<\/strong>.<\/li>\n<li>Nh\u1ea5n v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng th\u00f4ng tin (i) b\u00ean c\u1ea1nh m\u1ea1ng \u0111\u00e3 k\u1ebft n\u1ed1i.<\/li>\n<li>\u0110i \u0111\u1ebfn <strong>C\u1ea5u h\u00ecnh DNS<\/strong> v\u00e0 l\u1ef1a ch\u1ecdn <strong>Th\u1ee7 c\u00f4ng<\/strong>.<\/li>\n<li>X\u00f3a c\u00e1c m\u00e1y ch\u1ee7 hi\u1ec7n c\u00f3 v\u00e0 th\u00eam c\u00e1c \u0111\u1ecba ch\u1ec9 mong mu\u1ed1n, ch\u1eb3ng h\u1ea1n nh\u01b0 1.1.1.1 v\u00e0 1.0.0.1.<\/li>\n<li>Ch\u1ea1m v\u00e0o <strong>C\u1ee9u<\/strong>.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Hai nh\u1eadn x\u00e9t quan tr\u1ecdng. Th\u1ee9 nh\u1ea5t: c\u1ea5u h\u00ecnh n\u00e0y h\u1ee3p l\u1ec7. <strong>ch\u1ec9 d\u00e0nh cho m\u1ea1ng Wi-Fi \u0111\u00f3<\/strong> \u2014 Tr\u00ean m\u1ed9t m\u1ea1ng kh\u00e1c, c\u1ea7n l\u1eb7p l\u1ea1i thao t\u00e1c n\u00e0y. Th\u1ee9 hai: \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean d\u1eef li\u1ec7u di \u0111\u1ed9ng v\u00e0 \u1edf d\u1ea1ng m\u00e3 h\u00f3a, iPhone c\u1ea7n c\u00f3 c\u1ea5u h\u00ecnh ho\u1eb7c \u1ee9ng d\u1ee5ng ch\u00ednh th\u1ee9c c\u1ee7a d\u1ecbch v\u1ee5 DNS, \u1ee9ng d\u1ee5ng n\u00e0y s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u00e0i \u0111\u1eb7t c\u1ea5u h\u00ecnh \u0111\u00f3. Ch\u1ec9 c\u00e0i \u0111\u1eb7t c\u1ea5u h\u00ecnh t\u1eeb c\u00e1c ngu\u1ed3n \u0111\u00e1ng tin c\u1eady: ch\u00fang ki\u1ec3m so\u00e1t to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i t\u00ean tr\u00ean thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Thay th\u1ebf linh ki\u1ec7n tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn s\u1ebd hi\u1ec7u qu\u1ea3 h\u01a1n.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u1ee5c ti\u00eau l\u00e0 \u0111\u1ec3 n\u00f3 ho\u1ea1t \u0111\u1ed9ng cho to\u00e0n b\u1ed9 ng\u00f4i nh\u00e0\u2014tivi, m\u00e1y ch\u01a1i game, m\u00e1y t\u00ednh, kh\u00e1ch \u0111\u1ebfn nh\u00e0\u2014th\u00ec n\u01a1i th\u00edch h\u1ee3p nh\u1ea5t \u0111\u1ec3 t\u00ecm th\u1ea5y n\u00f3 l\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn. \u0110\u01b0\u1eddng d\u1eabn c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo ki\u1ec3u m\u00e1y, nh\u01b0ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong m\u1ee5c &quot;WAN,&quot; &quot;Internet,&quot; ho\u1eb7c &quot;LAN\/DHCP,&quot; trong ph\u1ea7n d\u00e0nh cho m\u00e1y ch\u1ee7 DNS ch\u00ednh v\u00e0 ph\u1ee5. Sau khi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb s\u1ebd s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 m\u1edbi m\u00e0 kh\u00f4ng c\u1ea7n c\u1ea5u h\u00ecnh ri\u00eang l\u1ebb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 hai \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd: m\u1ed9t s\u1ed1 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn do nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) cung c\u1ea5p kh\u00f4ng cho ph\u00e9p b\u1ea1n thay \u0111\u1ed5i c\u00e0i \u0111\u1eb7t n\u00e0y; v\u00e0 b\u1ed9 l\u1ecdc b\u1ea1n c\u1ea5u h\u00ecnh \u1edf \u0111\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 n\u1ed9i dung ng\u01b0\u1eddi l\u1edbn, ch\u1ec9 \u00e1p d\u1ee5ng trong m\u1ea1ng c\u1ee7a b\u1ea1n \u2014 tr\u00ean m\u1ea1ng 4G, \u0111i\u1ec7n tho\u1ea1i s\u1ebd chuy\u1ec3n sang s\u1eed d\u1ee5ng DNS c\u1ee7a nh\u00e0 m\u1ea1ng. H\u00e3y ghi l\u1ea1i c\u1ea5u h\u00ecnh c\u0169 tr\u01b0\u1edbc khi thay \u0111\u1ed5i b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">G\u00f3c nh\u00ecn t\u1eeb Brazil: Khi n\u00e0o th\u00ec vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i l\u00e0 kh\u00f4ng \u0111\u00e1ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 ph\u1ea7n b\u1ecb thi\u1ebfu trong h\u1ea7u h\u1ebft c\u00e1c t\u00e0i li\u1ec7u v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y. C\u00e1c n\u1ec1n t\u1ea3ng video, tr\u00f2 ch\u01a1i v\u00e0 m\u1ea1ng x\u00e3 h\u1ed9i l\u1edbn duy tr\u00ec... <strong>m\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m trong c\u00e1c nh\u00e0 m\u1ea1ng Brazil<\/strong> V\u00e0 t\u1ea1i c\u00e1c \u0111i\u1ec3m trao \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp c\u1ee7a \u0111\u1ea5t n\u01b0\u1edbc \u2014 \u0111i\u1ec3m \u1edf S\u00e3o Paulo l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m l\u1edbn nh\u1ea5t th\u1ebf gi\u1edbi. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 video b\u1ea1n xem th\u01b0\u1eddng kh\u00f4ng \u0111\u1ebfn t\u1eeb n\u01b0\u1edbc ngo\u00e0i: n\u00f3 \u0111\u1ebfn t\u1eeb m\u1ed9t m\u00e1y ch\u1ee7 c\u00e1ch b\u1ea1n v\u00e0i kilomet, n\u1eb1m trong m\u1ea1ng l\u01b0\u1edbi c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea3n h\u1ed3i DNS x\u00e1c \u0111\u1ecbnh b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn m\u00e1y ch\u1ee7 n\u00e0o trong s\u1ed1 n\u00e0y. M\u1ed9t s\u1ed1 m\u00e1y ch\u1ee7 ph\u00e2n gi\u1ea3i c\u00f4ng c\u1ed9ng g\u1eedi m\u1ed9t ph\u1ea7n \u0111\u1ecba ch\u1ec9 m\u1ea1ng c\u1ee7a b\u1ea1n \u0111\u1ec3 n\u1ec1n t\u1ea3ng c\u00f3 th\u1ec3 ch\u1ecdn m\u00e1y ch\u1ee7 g\u1ea7n nh\u1ea5t; nh\u1eefng m\u00e1y ch\u1ee7 kh\u00e1c kh\u00f4ng g\u1eedi \u0111\u1ecba ch\u1ec9 n\u00e0y do ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt \u2014 v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, n\u1ec1n t\u1ea3ng c\u00f3 th\u1ec3 ch\u1ecdn v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p h\u01a1n. K\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf: trong m\u1ed9t s\u1ed1 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa nh\u00e0 cung c\u1ea5p v\u00e0 d\u1ecbch v\u1ee5, <strong>Vi\u1ec7c thay \u0111\u1ed5i DNS s\u1ebd l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 video v\u00e0 t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng.<\/strong>, Ngay c\u1ea3 khi qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n tr\u1edf n\u00ean nhanh h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p kh\u00e1c m\u00e0 vi\u1ec7c tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n l\u00e0 t\u1ed1t h\u01a1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u1ea1ng l\u01b0\u1edbi doanh nghi\u1ec7p, tr\u01b0\u1eddng h\u1ecdc ho\u1eb7c \u0111\u1ea1i h\u1ecdc.<\/strong> T\u00ean n\u1ed9i b\u1ed9 ch\u1ec9 t\u1ed3n t\u1ea1i trong h\u1ec7 th\u1ed1ng DNS c\u1ee7a m\u1ea1ng. Vi\u1ec7c thay \u0111\u1ed5i ch\u00fang s\u1ebd l\u00e0m gi\u00e1n \u0111o\u1ea1n quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng n\u1ed9i b\u1ed9.<\/li>\n<li><strong>Wi-Fi c\u00f3 m\u00e0n h\u00ecnh \u0111\u0103ng nh\u1eadp.<\/strong> S\u00e2n bay, kh\u00e1ch s\u1ea1n, qu\u00e1n c\u00e0 ph\u00ea: c\u1ed5ng th\u00f4ng tin n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o DNS c\u1ee5c b\u1ed9 \u0111\u1ec3 hi\u1ec3n th\u1ecb.<\/li>\n<li><strong>B\u1ed9 l\u1ecdc n\u1ed9i dung t\u1ea1i nh\u00e0.<\/strong> N\u1ebfu b\u1ea1n \u0111\u00e3 thi\u1ebft l\u1eadp ki\u1ec3m so\u00e1t c\u1ee7a ph\u1ee5 huynh tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn th\u00f4ng qua DNS, vi\u1ec7c cho ph\u00e9p con b\u1ea1n thay \u0111\u1ed5i DNS tr\u00ean \u0111i\u1ec7n tho\u1ea1i c\u1ee7a ch\u00fang s\u1ebd b\u1ecf qua b\u1ed9 l\u1ecdc \u2014 v\u00e0 \u0111i\u1ec1u c\u1ea7n bi\u1ebft l\u00e0 \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 v\u01b0\u1ee3t qua b\u1ed9 l\u1ecdc n\u00e0y.<\/li>\n<li><strong>\u0110\u00e3 b\u1eadt VPN.<\/strong> C\u00e1c VPN th\u01b0\u1eddng s\u1eed d\u1ee5ng DNS ri\u00eang c\u1ee7a ch\u00fang; vi\u1ec7c c\u1ea5u h\u00ecnh m\u1ed9t DNS kh\u00e1c ch\u1ed3ng l\u00ean \u0111\u00f3 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn xung \u0111\u1ed9t v\u00e0 \u0111\u00f4i khi l\u00e0 r\u00f2 r\u1ec9 truy v\u1ea5n.<\/li>\n<li><strong>M\u1ecdi th\u1ee9 \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng t\u1ed1t.<\/strong> N\u1ebfu c\u00e1c trang t\u1ea3i nhanh v\u00e0 kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng gi\u1eadt lag, s\u1ef1 c\u1ea3i thi\u1ec7n s\u1ebd kh\u00f4ng th\u1ec3 nh\u1eadn th\u1ea5y \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u0169ng c\u1ea7n l\u00e0m r\u00f5 m\u1ed9t th\u00f4ng l\u1ec7 ph\u1ed5 bi\u1ebfn \u1edf \u0111\u00e2y: t\u1ea1i Brazil, vi\u1ec7c ch\u1eb7n trang web theo l\u1ec7nh c\u1ee7a t\u00f2a \u00e1n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet, v\u00e0 vi\u1ec7c thay \u0111\u1ed5i DNS \u0111\u00f4i khi c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua l\u1ec7nh ch\u1eb7n n\u00e0y. Vi\u1ec7c v\u01b0\u1ee3t qua l\u1ec7nh ch\u1eb7n kh\u00f4ng l\u00e0m cho n\u1ed9i dung b\u1ecb t\u00f2a \u00e1n ch\u1eb7n tr\u1edf n\u00ean h\u1ee3p ph\u00e1p \u2014 tr\u00e1ch nhi\u1ec7m truy c\u1eadp v\u1eabn thu\u1ed9c v\u1ec1 ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u00e0m sao t\u00f4i bi\u1ebft \u0111\u01b0\u1ee3c li\u1ec7u n\u00f3 c\u00f3 \u0111\u00e1ng gi\u00e1 hay kh\u00f4ng?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>H\u00e3y so s\u00e1nh \u1ea3nh tr\u01b0\u1edbc v\u00e0 \u1ea3nh sau \u0111\u01b0\u1ee3c ch\u1ee5p t\u1ea1i c\u00f9ng m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m v\u00e0 th\u1eddi \u0111i\u1ec3m.<\/strong> Vi\u1ec7c th\u1eed nghi\u1ec7m tr\u00ean m\u1ea1ng Wi-Fi t\u1ea1i nh\u00e0 v\u00e0 so s\u00e1nh v\u1edbi m\u1ed9t th\u1eed nghi\u1ec7m kh\u00e1c tr\u00ean m\u1ea1ng 4G kh\u00f4ng ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111i\u1ec1u g\u00ec.<\/li>\n<li><strong>H\u00e3y \u0111o l\u01b0\u1eddng nh\u1eefng g\u00ec b\u1ea1n s\u1eed d\u1ee5ng.<\/strong> M\u1edf n\u0103m trang web b\u1ea1n truy c\u1eadp th\u01b0\u1eddng xuy\u00ean nh\u1ea5t, sau khi \u0111\u00e3 x\u00f3a b\u1ed9 nh\u1edb cache c\u1ee7a tr\u00ecnh duy\u1ec7t, v\u00e0 xem li\u1ec7u c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 hay kh\u00f4ng.<\/li>\n<li><strong>H\u00e3y ki\u1ec3m tra t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng, ch\u1ee9 kh\u00f4ng ch\u1ec9 t\u1ed1c \u0111\u1ed9 duy\u1ec7t web.<\/strong> \u0110\u00e2y l\u00e0 l\u00fac m\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00e1y ch\u1ee7 n\u1ed9i dung ph\u00e1t huy t\u00e1c d\u1ee5ng.<\/li>\n<li><strong>H\u00e3y \u0111\u1ee3i m\u1ed9t tu\u1ea7n tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh.<\/strong> \u1ea4n t\u01b0\u1ee3ng v\u1ec1 t\u1ed1c \u0111\u1ed9 trong ph\u00fat \u0111\u1ea7u ti\u00ean c\u00f3 th\u1ec3 g\u00e2y hi\u1ec3u l\u1ea7m.<\/li>\n<li><strong>L\u01b0u \u00fd c\u1ea5u h\u00ecnh c\u0169.<\/strong> Tr\u1edf v\u1ec1 m\u00e0 kh\u00f4ng g\u1eb7p r\u1eafc r\u1ed1i. Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, &quot;T\u1ef1 \u0111\u1ed9ng&quot; gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1.<\/li>\n<\/ul>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch thay \u0111\u1ed5i DNS trong Windows v\u00e0 macOS<\/h2>\n\n<p>B\u00e0i vi\u1ebft \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, nh\u01b0ng nh\u1eefng ng\u01b0\u1eddi d\u00e0nh c\u1ea3 ng\u00e0y l\u00e0m vi\u1ec7c tr\u00ean m\u00e1y t\u00ednh c\u0169ng nh\u1eadn \u0111\u01b0\u1ee3c l\u1ee3i \u00edch t\u01b0\u01a1ng t\u1ef1 ch\u1ec9 v\u1edbi hai ph\u00fat thi\u1ebft l\u1eadp \u2014 v\u00e0 thay \u0111\u1ed5i n\u00e0y ch\u1ec9 \u00e1p d\u1ee5ng cho m\u00e1y t\u00ednh \u0111\u00f3, r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 th\u1eed nghi\u1ec7m tr\u01b0\u1edbc khi can thi\u1ec7p v\u00e0o to\u00e0n b\u1ed9 m\u1ea1ng.<\/p>\n\n<p><strong>Tr\u00ean Windows<\/strong>, Trong c\u00e1c phi\u00ean b\u1ea3n hi\u1ec7n t\u1ea1i, \u0111\u01b0\u1eddng d\u1eabn l\u00e0: C\u00e0i \u0111\u1eb7t, M\u1ea1ng &amp; Internet, ch\u1ea1m v\u00e0o k\u1ebft n\u1ed1i \u0111ang s\u1eed d\u1ee5ng (Wi-Fi ho\u1eb7c Ethernet), t\u00ecm ph\u1ea7n g\u00e1n m\u00e1y ch\u1ee7 DNS v\u00e0 ch\u1ecdn ch\u1ec9nh s\u1eeda. Thay \u0111\u1ed5i t\u1eeb T\u1ef1 \u0111\u1ed9ng sang Th\u1ee7 c\u00f4ng, b\u1eadt IPv4 v\u00e0 \u0111i\u1ec1n m\u00e1y ch\u1ee7 \u01b0u ti\u00ean v\u00e0 m\u00e1y ch\u1ee7 thay th\u1ebf. Trong c\u00e1c phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u00f2n c\u00f3 th\u00eam tr\u01b0\u1eddng m\u00e3 h\u00f3a DNS, cho ph\u00e9p m\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n khi m\u00e1y ch\u1ee7 \u0111\u00e3 ch\u1ecdn h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng n\u00e0y.<\/p>\n\n<p><strong>Tr\u00ean macOS<\/strong>, M\u1edf C\u00e0i \u0111\u1eb7t H\u1ec7 th\u1ed1ng, v\u00e0o M\u1ea1ng, ch\u1ecdn k\u1ebft n\u1ed1i \u0111ang ho\u1ea1t \u0111\u1ed9ng, v\u00e0o Chi ti\u1ebft, r\u1ed3i \u0111\u1ebfn tab DNS. S\u1eed d\u1ee5ng n\u00fat d\u1ea5u c\u1ed9ng \u0111\u1ec3 th\u00eam c\u00e1c \u0111\u1ecba ch\u1ec9 mong mu\u1ed1n v\u00e0 x\u00f3a c\u00e1c \u0111\u1ecba ch\u1ec9 t\u1eeb nh\u00e0 cung c\u1ea5p c\u1ee7a b\u1ea1n. X\u00e1c nh\u1eadn v\u00e0 \u00c1p d\u1ee5ng.<\/p>\n\n<p>\u1ede c\u1ea3 hai h\u1ec7 th\u1ed1ng, h\u00e3y ghi ch\u00fa l\u1ea1i c\u00e1c thi\u1ebft l\u1eadp tr\u01b0\u1edbc. Th\u00f4ng th\u01b0\u1eddng, b\u1ea1n ch\u1ec9 c\u1ea7n chuy\u1ec3n v\u1ec1 ch\u1ebf \u0111\u1ed9 T\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 ho\u00e0n t\u00e1c, nh\u01b0ng tr\u00ean m\u00e1y t\u00ednh l\u00e0m vi\u1ec7c, c\u00f3 th\u1ec3 c\u00f3 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 n\u1ed9i b\u1ed9 \u0111\u01b0\u1ee3c ghi ch\u00fa \u1edf \u0111\u00f3 m\u00e0 b\u1ea1n s\u1ebd kh\u00f4ng nh\u1edb sau n\u00e0y.<\/p>\n\n\n\n<h2>Khi v\u1ea5n \u0111\u1ec1 kh\u00f4ng ph\u1ea3i do DNS: ch\u1ea9n \u0111o\u00e1n ch\u1ec9 trong ba ph\u00fat.<\/h2>\n\n<p>Thay th\u1ebf m\u00e1y ch\u1ee7 \u0111\u00e3 tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p \u0111\u1ea7u ti\u00ean cho b\u1ea5t k\u1ef3 s\u1ef1 ch\u1eadm l\u1ea1i n\u00e0o, v\u00e0 h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p nguy\u00ean nh\u00e2n l\u1ea1i l\u00e0 th\u1ee9 kh\u00e1c. Tr\u00ecnh t\u1ef1 n\u00e0y ph\u00e2n bi\u1ec7t c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nhau m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i \u0111\u1eb7t b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec:<\/p>\n\n<ol>\n<li><strong>Ch\u1ec9 c\u00f3 m\u1ed9t trang web hay t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u01b0\u1ee3c bao g\u1ed3m?<\/strong> N\u1ebfu ch\u1ec9 c\u00f3 m\u1ed9t \u0111\u1ecba ch\u1ec9 kh\u00f4ng m\u1edf \u0111\u01b0\u1ee3c trong khi c\u00e1c \u0111\u1ecba ch\u1ec9 kh\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, th\u00ec v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf trang web ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf vi\u1ec7c ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n.<\/li>\n<li><strong>N\u00f3 c\u00f3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi d\u1eef li\u1ec7u di \u0111\u1ed9ng kh\u00f4ng?<\/strong> T\u1eaft Wi-Fi tr\u00ean \u0111i\u1ec7n tho\u1ea1i v\u00e0 ki\u1ec3m tra. N\u1ebfu \u1ee9ng d\u1ee5ng m\u1edf b\u1eb1ng d\u1eef li\u1ec7u di \u0111\u1ed9ng, v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf m\u1ea1ng c\u1ee5c b\u1ed9 ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>Li\u1ec7u thi\u1ebft b\u1ecb kh\u00e1c tr\u00ean c\u00f9ng m\u1ea1ng c\u00f3 g\u1eb7p ph\u1ea3i tri\u1ec7u ch\u1ee9ng t\u01b0\u01a1ng t\u1ef1 kh\u00f4ng?<\/strong> N\u1ebfu ch\u1ec9 c\u00f3 m\u1ed9t thi\u1ebft b\u1ecb g\u1eb7p s\u1ef1 c\u1ed1, th\u00ec \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 h\u1ec7 th\u1ed1ng DNS t\u1ea1i nh\u00e0 m\u00e0 l\u00e0 ch\u00ednh thi\u1ebft b\u1ecb \u0111\u00f3.<\/li>\n<li><strong>X\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m t\u00ean.<\/strong> H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef c\u00e1c ph\u1ea3n h\u1ed3i c\u0169 trong m\u1ed9t th\u1eddi gian. Trong Windows, l\u1ec7nh x\u00f3a b\u1ed9 nh\u1edb cache DNS gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y; macOS c\u0169ng c\u00f3 l\u1ec7nh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. Kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb c\u0169ng c\u00f3 t\u00e1c d\u1ee5ng t\u01b0\u01a1ng t\u1ef1.<\/li>\n<li><strong>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n.<\/strong> R\u00fat ph\u00edch c\u1eafm thi\u1ebft b\u1ecb trong ba m\u01b0\u01a1i gi\u00e2y c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u s\u1ef1 c\u1ed1 m\u1ea1ng gia \u0111\u00ecnh.<\/li>\n<li><strong>H\u00e3y th\u1eed tr\u00ecnh duy\u1ec7t kh\u00e1c.<\/strong> C\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng, tr\u00ecnh ch\u1eb7n v\u00e0 c\u00e0i \u0111\u1eb7t DNS b\u1ea3o m\u1eadt trong ch\u00ednh tr\u00ecnh duy\u1ec7t g\u00e2y ra c\u00e1c tri\u1ec7u ch\u1ee9ng gi\u1ed1ng h\u1ec7t nh\u01b0 khi tr\u00ecnh ph\u00e2n gi\u1ea3i DNS b\u1ecb l\u1ed7i.<\/li>\n<\/ol>\n\n<p>N\u1ebfu sau t\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u n\u00e0y, t\u1ed1c \u0111\u1ed9 v\u1eabn ch\u1eadm tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb v\u00e0 trang web, v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 n\u1eb1m \u1edf k\u1ebft n\u1ed1i internet c\u1ee7a b\u1ea1n \u2014 v\u00e0 kh\u00f4ng c\u00f3 m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n n\u00e0o c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 \u0111\u00f3.<\/p>\n\n\n\n<h2>Tivi th\u00f4ng minh, m\u00e1y ch\u01a1i game v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng cho ph\u00e9p b\u1ea1n l\u1ef1a ch\u1ecdn.<\/h2>\n\n<p>Tivi, m\u00e1y ch\u01a1i game, thi\u1ebft b\u1ecb ph\u00e1t tr\u1ef1c tuy\u1ebfn v\u00e0 tr\u1ee3 l\u00fd gi\u1ecdng n\u00f3i c\u0169ng d\u1ef1a v\u00e0o vi\u1ec7c ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n, v\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng thi\u1ebft b\u1ecb n\u00e0o cung c\u1ea5p m\u00e0n h\u00ecnh c\u1ea5u h\u00ecnh t\u1ed1t cho vi\u1ec7c n\u00e0y. M\u1ed9t s\u1ed1 cho ph\u00e9p b\u1ea1n nh\u1eadp th\u1ee7 c\u00f4ng m\u00e1y ch\u1ee7 ch\u00ednh v\u00e0 ph\u1ee5 c\u00f9ng v\u1edbi \u0111\u1ecba ch\u1ec9 v\u00e0 m\u1eb7t n\u1ea1 m\u1ea1ng trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp m\u1ea1ng\u2014\u0111i\u1ec1u n\u00e0y bu\u1ed9c b\u1ea1n ph\u1ea3i t\u1ef1 g\u00e1n \u0111\u1ecba ch\u1ec9 c\u1ed1 \u0111\u1ecbnh cho thi\u1ebft b\u1ecb v\u00e0 l\u00e0m ph\u1ee9c t\u1ea1p th\u00eam v\u1ea5n \u0111\u1ec1.<\/p>\n\n<p>Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, gi\u1ea3i ph\u00e1p th\u1ef1c t\u1ebf l\u00e0 s\u1eed d\u1ee5ng b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn: sau khi \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh, m\u00e1y ch\u1ee7 m\u1edbi s\u1ebd \u00e1p d\u1ee5ng cho t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng k\u1ebft n\u1ed1i m\u00e0 kh\u00f4ng c\u1ea7n m\u00e0n h\u00ecnh c\u1ea5u h\u00ecnh ri\u00eang l\u1ebb. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd c\u1ee5 th\u1ec3: c\u00e1c thi\u1ebft b\u1ecb ph\u00e1t tr\u1ef1c tuy\u1ebfn v\u00e0 ch\u01a1i game ch\u00ednh l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i nhi\u1ec1u nh\u1ea5t t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet Brazil. N\u1ebfu sau khi thay \u0111\u1ed5i, video b\u1eaft \u0111\u1ea7u b\u1ecb gi\u00e1n \u0111o\u1ea1n ho\u1eb7c t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng b\u1ea3n c\u1eadp nh\u1eadt tr\u00f2 ch\u01a1i ch\u1eadm h\u01a1n, \u0111\u00e2y l\u00e0 nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u \u2013 v\u00e0 vi\u1ec7c chuy\u1ec3n l\u1ea1i sang m\u00e1y ch\u1ee7 c\u1ee7a nh\u00e0 cung c\u1ea5p ch\u1ec9 d\u00e0nh cho c\u00e1c thi\u1ebft b\u1ecb n\u00e0y th\u01b0\u1eddng l\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn t\u1ed1t nh\u1ea5t.<\/p>\n\n<p>C\u0169ng c\u00f3 nh\u1eefng ng\u01b0\u1eddi b\u1ecf qua ph\u1ea7n c\u1ea5u h\u00ecnh: m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t s\u1eb5n m\u00e1y ch\u1ee7 c\u1ed1 \u0111\u1ecbnh v\u00e0 \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng s\u1eed d\u1ee5ng nh\u1eefng g\u00ec b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ch\u1ec9 \u0111\u1ecbnh. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i c\u1ea5u h\u00ecnh, m\u00e0 l\u00e0 quy\u1ebft \u0111\u1ecbnh c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<h2>Nh\u1eefng c\u00e2u h\u1ecfi ph\u00e1t sinh sau cu\u1ed9c trao \u0111\u1ed5i<\/h2>\n\n<h3>T\u00f4i \u0111\u00e3 chuy\u1ec3n sang m\u00e1y ch\u1ee7 kh\u00e1c nh\u01b0ng m\u1ecdi th\u1ee9 v\u1eabn kh\u00f4ng thay \u0111\u1ed5i. Li\u1ec7u n\u00f3 c\u00f3 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng?<\/h3>\n<p>C\u00e1c ph\u1ea3n h\u1ed3i c\u0169 \u0111\u01b0\u1ee3c l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m trong m\u1ed9t kho\u1ea3ng th\u1eddi gian do m\u1ed7i t\u00ean mi\u1ec1n quy \u0111\u1ecbnh, v\u00ec v\u1eady s\u1ef1 thay \u0111\u1ed5i kh\u00f4ng di\u1ec5n ra ngay l\u1eadp t\u1ee9c. Kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb s\u1ebd gi\u00fap t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh n\u00e0y. B\u1ea1n c\u0169ng n\u00ean ki\u1ec3m tra xem tr\u00ecnh duy\u1ec7t c\u00f3 \u0111ang s\u1eed d\u1ee5ng c\u1ea5u h\u00ecnh DNS b\u1ea3o m\u1eadt ri\u00eang c\u1ee7a n\u00f3 hay kh\u00f4ng, v\u00ec \u0111i\u1ec1u n\u00e0y s\u1ebd b\u1ecf qua c\u1ea5u h\u00ecnh DNS c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n<h3>T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 t\u1eeb c\u00e1c c\u00f4ng ty kh\u00e1c nhau l\u00e0m m\u00e1y ch\u1ee7 ch\u00ednh v\u00e0 m\u00e1y ch\u1ee7 ph\u1ee5 \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>\n<p>\u0110i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 x\u1ea3y ra, nh\u01b0ng h\u1ec7 th\u1ed1ng kh\u00f4ng t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i gi\u1eefa hai \u0111\u1ecba ch\u1ec9, v\u00e0 cu\u1ed1i c\u00f9ng b\u1ea1n s\u1ebd kh\u00f4ng bi\u1ebft \u0111\u1ecba ch\u1ec9 n\u00e0o \u0111\u00e3 ph\u1ea3n h\u1ed3i. N\u1ebfu b\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 l\u1ecdc c\u1ee5 th\u1ec3 ho\u1eb7c b\u1ea3o m\u1eadt th\u00f4ng tin, h\u00e3y s\u1eed d\u1ee5ng c\u1eb7p \u0111\u1ecba ch\u1ec9 t\u1eeb c\u00f9ng m\u1ed9t d\u1ecbch v\u1ee5.<\/p>\n\n<h3>T\u00f4i b\u1eadt DNS ri\u00eang v\u00e0 m\u1ea1ng Wi-Fi \u1edf c\u00f4ng ty ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/h3>\n<p>M\u1ea1ng doanh nghi\u1ec7p th\u01b0\u1eddng d\u1ef1a v\u00e0o tr\u00ecnh ph\u00e2n gi\u1ea3i n\u1ed9i b\u1ed9 cho c\u00e1c t\u00ean mi\u1ec1n ch\u1ec9 t\u1ed3n t\u1ea1i trong m\u1ea1ng v\u00e0 m\u1ed9t s\u1ed1 ch\u1eb7n c\u00e1c truy v\u1ea5n \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a t\u1eeb b\u00ean ngo\u00e0i. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, t\u1ed1t nh\u1ea5t l\u00e0 n\u00ean \u0111\u1ec3 \u1edf ch\u1ebf \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng khi k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng \u0111\u00f3.<\/p>\n\n<h3>Vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 DNS tr\u1ea3 ph\u00ed c\u00f3 \u0111\u00e1ng gi\u00e1 kh\u00f4ng?<\/h3>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n tr\u1ea3 ph\u00ed ch\u1ec9 c\u00f3 \u00fd ngh\u0129a khi b\u1ea1n c\u1ea7n nh\u1eefng t\u00ednh n\u0103ng m\u00e0 phi\u00ean b\u1ea3n mi\u1ec5n ph\u00ed kh\u00f4ng cung c\u1ea5p: danh s\u00e1ch ch\u1eb7n t\u00f9y ch\u1ec9nh, nh\u1eadt k\u00fd truy v\u1ea5n m\u1ea1ng v\u00e0 quy t\u1eafc cho t\u1eebng h\u1ed3 s\u01a1. V\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 c\u01a1 b\u1ea3n, c\u00e1c t\u00f9y ch\u1ecdn mi\u1ec5n ph\u00ed ph\u1ed5 bi\u1ebfn \u0111\u1ec1u cung c\u1ea5p nh\u1eefng t\u00ednh n\u0103ng t\u01b0\u01a1ng t\u1ef1.<\/p>\n\n\n\n\n<h2>\u0110\u1ecdc th\u00eam<\/h2>\n<ul>\n<li><a href=\"https:\/\/appdigi.net\/vi\/ung-dung-giup-tang-am-luong-dien-thoai-di-dong-cua-ban-to-hon\/\">\u1ee8ng d\u1ee5ng gi\u00fap \u00e2m l\u01b0\u1ee3ng \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n to h\u01a1n<\/a><\/li>\n<li><a href=\"https:\/\/appdigi.net\/vi\/ung-dung-tro-chuyen-truc-tuyen-tot-nhat-de-ket-ban-moi\/\">C\u00e1ch k\u1ebft b\u1ea1n m\u1edbi tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng: C\u00e1c lo\u1ea1i \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch an to\u00e0n<\/a><\/li>\n<li><a href=\"https:\/\/appdigi.net\/vi\/sieu-am-ma-khong-can-ra-khoi-nha-ung-dung-tot-nhat-hien-nay\/\">Si\u00eau \u00e2m c\u1ea7m tay: T\u1ea1i sao \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n si\u00eau \u00e2m v\u00e0 \u1ee9ng d\u1ee5ng ghi l\u1ea1i nh\u1eefng g\u00ec.<\/a><\/li>\n<li><a href=\"https:\/\/appdigi.net\/vi\/bo-nho-day-hay-kiem-tra-3-ung-dung-de-don-dep-dien-thoai-di-dong-cua-ban\/\">B\u1ed9 nh\u1edb \u0111\u1ea7y tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng c\u1ee7a b\u1ea1n: H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc gi\u1ea3i ph\u00f3ng dung l\u01b0\u1ee3ng tr\u00ean Android v\u00e0 iPhone<\/a><\/li>\n<li><a href=\"https:\/\/appdigi.net\/vi\/ung-dung-xem-tivi-mien-phi-tren-dien-thoai-di-dong\/\">Xem truy\u1ec1n h\u00ecnh mi\u1ec5n ph\u00ed tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng: Nh\u1eefng l\u1ef1a ch\u1ecdn h\u1ee3p ph\u00e1p v\u00e0 r\u1ee7i ro.<\/a><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Vi\u1ec7c thay \u0111\u1ed5i DNS c\u00f3 l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 internet kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng. B\u0103ng th\u00f4ng theo h\u1ee3p \u0111\u1ed3ng v\u1eabn gi\u1eef nguy\u00ean. \u0110i\u1ec1u thay \u0111\u1ed5i l\u00e0 th\u1eddi gian ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n, \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng mili gi\u00e2y, t\u1ea1o c\u1ea3m gi\u00e1c c\u00e1c trang t\u1ea3i nhanh h\u01a1n khi truy c\u1eadp l\u1ea7n \u0111\u1ea7u v\u00e0o m\u1ed7i t\u00ean mi\u1ec1n. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, s\u1ef1 thay \u0111\u1ed5i n\u00e0y th\u1eadm ch\u00ed c\u00f2n l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 l\u1ef1a ch\u1ecdn m\u00e1y ch\u1ee7 n\u1ed9i dung g\u1ea7n nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 DNS c\u00f4ng c\u1ed9ng c\u00f3 an to\u00e0n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e2ng, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 l\u1edbn, n\u1ed5i ti\u1ebfng. H\u00e3y c\u1ea9n th\u1eadn v\u1edbi c\u00e1c \u0111\u1ecba ch\u1ec9 t\u00ecm th\u1ea5y tr\u00ean di\u1ec5n \u0111\u00e0n v\u00e0 danh s\u00e1ch ng\u1eabu nhi\u00ean: m\u1ed9t tr\u00ecnh ph\u00e2n gi\u1ea3i \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 tr\u1ea3 v\u1ec1 \u0111\u1ecba ch\u1ec9 sai \u0111\u1ebfn m\u1ed9t trang web h\u1ee3p ph\u00e1p v\u00e0 d\u1eabn b\u1ea1n \u0111\u1ebfn m\u1ed9t trang gi\u1ea3 m\u1ea1o. Ch\u1ec9 s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp v\u00e0 c\u00f3 ch\u00ednh s\u00e1ch c\u00f4ng khai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e1y ch\u1ee7 DNS n\u00e0o nhanh nh\u1ea5t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u \u0111\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 b\u1ea1n s\u1eed d\u1ee5ng\u2014kh\u00f4ng c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi chung cho t\u1ea5t c\u1ea3. C\u00e1ch trung th\u1ef1c nh\u1ea5t \u0111\u1ec3 t\u00ecm ra c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 th\u1eed nghi\u1ec7m hai ho\u1eb7c ba nh\u00e0 cung c\u1ea5p kh\u00e1c nhau tr\u00ean c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n c\u1ee7a b\u1ea1n, c\u00f9ng m\u1ed9t l\u00fac, v\u00e0 so s\u00e1nh ch\u00fang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Li\u1ec7u DNS c\u00f3 che gi\u1ea5u l\u1ecbch s\u1eed duy\u1ec7t web c\u1ee7a t\u00f4i kh\u1ecfi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ec9 khi n\u00e0o n\u00f3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a (DoH ho\u1eb7c DoT), v\u00e0 ngay c\u1ea3 khi \u0111\u00f3 c\u0169ng ch\u1ec9 m\u1ed9t ph\u1ea7n: nh\u00e0 cung c\u1ea5p s\u1ebd ng\u1eebng nh\u00ecn th\u1ea5y c\u00e1c truy v\u1ea5n, nh\u01b0ng v\u1eabn ti\u1ebfp t\u1ee5c th\u1ea5y \u0111\u1ecba ch\u1ec9 m\u1ea1ng m\u00e0 b\u1ea1n k\u1ebft n\u1ed1i \u0111\u1ebfn. DNS kh\u00f4ng ph\u1ea3i l\u00e0 VPN v\u00e0 kh\u00f4ng gi\u00fap \u1ea9n danh vi\u1ec7c duy\u1ec7t web.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f4i ph\u1ea3i l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ho\u00e0n t\u00e1c thao t\u00e1c n\u00e0y n\u1ebfu c\u00f3 v\u1ea5n \u0111\u1ec1 x\u1ea3y ra?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean Android, h\u00e3y \u0111\u1eb7t DNS ri\u00eang t\u01b0 th\u00e0nh \u201cT\u1ef1 \u0111\u1ed9ng\u201d. Tr\u00ean iPhone, h\u00e3y \u0111\u1eb7t DNS th\u00e0nh \u201cT\u1ef1 \u0111\u1ed9ng\u201d. Tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n, h\u00e3y kh\u00f4i ph\u1ee5c c\u00e1c gi\u00e1 tr\u1ecb \u0111\u00e3 ghi ch\u00fa ho\u1eb7c \u0111\u1ec3 tr\u1ed1ng \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a nh\u00e0 cung c\u1ea5p. Thay \u0111\u1ed5i n\u00e0y ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f4i c\u00f3 c\u1ea7n m\u00e1y ch\u1ee7 DNS kh\u00e1c nhau cho Wi-Fi v\u00e0 d\u1eef li\u1ec7u di \u0111\u1ed9ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean Android th\u00ec kh\u00f4ng: DNS ri\u00eang \u00e1p d\u1ee5ng cho c\u1ea3 hai k\u1ebft n\u1ed1i. Tr\u00ean iPhone, c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ea1ng Wi-Fi \u2014 \u0111\u1ec3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u di \u0111\u1ed9ng, b\u1ea1n c\u1ea7n c\u1ea5u h\u00ecnh h\u1ed3 s\u01a1 ho\u1eb7c \u1ee9ng d\u1ee5ng ch\u00ednh th\u1ee9c c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e3 ch\u1ecdn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DNS c\u00f3 ch\u1eb7n qu\u1ea3ng c\u00e1o v\u00e0 virus kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 m\u00e1y ch\u1ee7 ch\u1eb7n c\u00e1c t\u00ean mi\u1ec1n qu\u1ea3ng c\u00e1o, theo d\u00f5i ho\u1eb7c l\u1eeba \u0111\u1ea3o \u0111\u00e3 bi\u1ebft, v\u00e0 \u0111i\u1ec1u n\u00e0y c\u0169ng ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u1ee9ng d\u1ee5ng. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng thay th\u1ebf ph\u1ea7n m\u1ec1m di\u1ec7t virus ho\u1eb7c s\u1ef1 c\u1ea9n tr\u1ecdng: m\u1ed9t t\u00ean mi\u1ec1n m\u1edbi, ch\u01b0a \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea, th\u01b0\u1eddng v\u1eabn truy c\u1eadp b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i m\u00e1y ch\u1ee7 DNS l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec1u ch\u1ec9nh \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 \u0111\u1ea3o ng\u01b0\u1ee3c nh\u1ea5t hi\u1ec7n c\u00f3, v\u00e0 n\u00f3 c\u00f3 th\u1ec3 mang l\u1ea1i ba l\u1ee3i \u00edch c\u1ee5 th\u1ec3: t\u1ed1c \u0111\u1ed9 ph\u00e2n gi\u1ea3i t\u00ean nhanh h\u01a1n m\u1ed9t ch\u00fat, m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c t\u00ean mi\u1ec1n \u0111\u1ed9c h\u1ea1i v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 cao h\u01a1n li\u00ean quan \u0111\u1ebfn nh\u00e0 cung c\u1ea5p c\u1ee7a b\u1ea1n n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng DNS \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a. \u0110i\u1ec1u m\u00e0 n\u00f3 kh\u00f4ng mang l\u1ea1i l\u00e0 t\u1ed1c \u0111\u1ed9 k\u1ebft n\u1ed1i nhanh h\u01a1n\u2014v\u00e0 b\u1ea1n n\u00ean bi\u1ebft \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n mu\u1ed1n m\u1ed9t gi\u1ea3i ph\u00e1p c\u00f3 s\u1eb5n: tr\u00ean Android, h\u00e3y b\u1eadt DNS ri\u00eang t\u01b0 v\u1edbi t\u00ean d\u1ecbch v\u1ee5 b\u1ea1n ch\u1ecdn, d\u1ecbch v\u1ee5 n\u00e0y s\u1ebd m\u00e3 h\u00f3a m\u1ecdi th\u1ee9 v\u00e0 ho\u1ea1t \u0111\u1ed9ng cho c\u1ea3 Wi-Fi v\u00e0 d\u1eef li\u1ec7u di \u0111\u1ed9ng. \u01afu ti\u00ean b\u1ea3o m\u1eadt h\u01a1n t\u1ea5t c\u1ea3? H\u00e3y ch\u1ecdn Quad9. Mu\u1ed1n t\u1ed1c \u0111\u1ed9 nhanh nh\u1ea5t \u1edf h\u1ea7u h\u1ebft c\u00e1c kh\u00eda c\u1ea1nh? Cloudflare. Mu\u1ed1n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed1i \u0111a? Google. Mu\u1ed1n b\u1ed9 l\u1ecdc cho m\u1ea1ng gia \u0111\u00ecnh? OpenDNS FamilyShield ho\u1eb7c phi\u00ean b\u1ea3n 1.1.1.3, c\u00e0i \u0111\u1eb7t tr\u1ef1c ti\u1ebfp tr\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e0 n\u1ebfu sau m\u1ed9t tu\u1ea7n, video b\u1eaft \u0111\u1ea7u b\u1ecb gi\u00e1n \u0111o\u1ea1n nhi\u1ec1u h\u01a1n tr\u01b0\u1edbc, b\u1ea1n \u0111\u00e3 bi\u1ebft l\u00fd do r\u1ed3i: \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1edbi c\u00e1c m\u00e1y ch\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet Brazil. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, chuy\u1ec3n l\u1ea1i sang ch\u1ebf \u0111\u1ed9 &quot;T\u1ef1 \u0111\u1ed9ng&quot; kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ea5t b\u1ea1i m\u00e0 l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00fang \u0111\u1eafn.<\/p>","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea j\u00e1 se perguntou como \u00e9 poss\u00edvel acessar um site digitando um nome f\u00e1cil de lembrar em vez de uma sequ\u00eancia de n\u00fameros? Quem faz\u2026<\/p>","protected":false},"author":1,"featured_media":1930,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_revidia_rewards_active":"","_mc_subtitle":"","footnotes":""},"categories":[36],"tags":[],"class_list":["post-1929","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-utilidades"],"_links":{"self":[{"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/posts\/1929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/comments?post=1929"}],"version-history":[{"count":6,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/posts\/1929\/revisions"}],"predecessor-version":[{"id":67768,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/posts\/1929\/revisions\/67768"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/media\/1930"}],"wp:attachment":[{"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/media?parent=1929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/categories?post=1929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/appdigi.net\/vi\/wp-json\/wp\/v2\/tags?post=1929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}