{"id":12169,"date":"2024-12-28T08:25:30","date_gmt":"2024-12-28T01:25:30","guid":{"rendered":"https:\/\/cloud.z.com\/vn\/?p=12169"},"modified":"2024-12-26T08:30:16","modified_gmt":"2024-12-26T01:30:16","slug":"dns-propagation","status":"publish","type":"post","link":"https:\/\/cloud.z.com\/vn\/en\/news\/dns-propagation\/","title":{"rendered":"T\u1eeb A-Z v\u1ec1 DNS Propagation. L\u01b0u \u00fd tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n DNS Propagation"},"content":{"rendered":"<p>DNS Propagation l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong l\u0129nh v\u1ef1c qu\u1ea3n tr\u1ecb website v\u00e0 h\u1ec7 th\u1ed1ng m\u1ea1ng, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng truy c\u1eadp c\u1ee7a ng\u01b0\u1eddi d\u00f9ng khi thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS.<\/p>\n<p>Trong b\u00e0i vi\u1ebft n\u00e0y, h\u00e3y c\u00f9ng Z.com t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 kh\u00e1i ni\u1ec7m DNS Propagation, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng, c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi gian c\u1eadp nh\u1eadt, v\u00e0 nh\u1eefng m\u1eb9o gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n<div class=\"tg_wrap_cbsv\" style=\"margin: 20px 0px; border-radius: 4px; border: 2px solid #0066ff;\">\n<h3><span style=\"color: #ffff00; font-size: 14pt;\"><cite style=\"margin: 0px; background-color: #4d94ff; border-top-left-radius: 2px; border-top-right-radius: 2px; padding: 12px 20px; font-weight: bold; display: block; font-style: normal;\">Hosting t\u1ed1c \u0111\u1ed9 cao - Ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t [ T\u1eb7ng mi\u1ec5n ph\u00ed tr\u1ecdn b\u1ed9 plugin SEO tr\u1ecb gi\u00e1 359$ ]<\/cite><\/span><\/h3>\n<div class=\"textwidget\" style=\"padding: 20px; background: #cce0ff;\"><span style=\"color: #000000;\">+ <strong>Gi\u00e1 kh\u00f4ng th\u1ec3 t\u1ed1t h\u01a1n:<\/strong><\/span>\u00a0Ch\u1ec9 t\u1eeb <strong>45<\/strong>K\/th\u00e1ng k\u00e8m nhi\u1ec1u \u01b0u \u0111\u00e3i ch\u1ec9 c\u00f3 t\u1ea1i TENTEN. <span style=\"color: #000000;\">+ <strong>T\u1eb7ng mi\u1ec5n ph\u00ed b\u1ed9 plugin SEO h\u1ed7 tr\u1ee3 website ONTOP Goole:<\/strong><\/span><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Rank Math Pro - t\u1ed1i \u01b0u SEO<\/li>\n<li>WP rocket - T\u0103ng t\u1ed1c \u0111\u1ed9 t\u1ea3i trang<\/li>\n<li>Imagify - N\u00e9n dung l\u01b0\u1ee3ng \u1ea3nh<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">+ <strong>B\u1ea3o m\u1eadt 99,99%<\/strong><\/span> <span style=\"color: #000000;\">+ <strong>Backup d\u1eef li\u1ec7u th\u01b0\u1eddng xuy\u00ean<\/strong><\/span> <span style=\"color: #000000;\">+ <strong>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7<\/strong><\/span> <span style=\"color: #eded34;\"><a class=\"btn_combi_sv\" style=\"font-weight: bold; color: #eded34; padding: 8px 26px 8px 60px; font-size: 20px; line-height: 30px; border-radius: 56px; text-shadow: none; background: #0066ff; display: table; margin: 0px auto;\" href=\"https:\/\/tenten.vn\/hosting\/tong-hop-uu-dai?code=zZPxtXpKTCovQNcM&amp;idCampaign=2712\">L\u1ef0A CH\u1eccN HOSTING PH\u00d9 H\u1ee2P T\u1ea0I \u0110\u00c2Y<\/a><\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/zalo.me\/g\/xyaten398\">V\u00e0o nh\u00f3m Zalo \u0111\u1ec3 nh\u1eadn th\u00eam nhi\u1ec1u \u01b0u \u0111\u00e3i Hosting h\u01a1n n\u1eefa<\/a><\/li>\n<li>Hotline: (024) 71 089 999<\/li>\n<li>Email: info@tenten.vn<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h3>DNS Propagation l\u00e0 g\u00ec?<\/h3>\n<p>DNS Propagation l\u00e0 qu\u00e1 tr\u00ecnh m\u00e0 c\u00e1c thay \u0111\u1ed5i trong h\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (DNS) \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 lan truy\u1ec1n tr\u00ean to\u00e0n b\u1ed9 c\u00e1c m\u00e1y ch\u1ee7 DNS tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<p>Khi b\u1ea1n th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1eadp nh\u1eadt b\u1ea3n ghi A, CNAME, ho\u1eb7c thay \u0111\u1ed5i nh\u00e0 cung c\u1ea5p hosting, c\u00e1c m\u00e1y ch\u1ee7 DNS kh\u00f4ng th\u1ec3 \u0111\u1ed3ng b\u1ed9 ngay l\u1eadp t\u1ee9c. Thay v\u00e0o \u0111\u00f3, c\u00e1c thay \u0111\u1ed5i n\u00e0y c\u1ea7n th\u1eddi gian \u0111\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7 DNS kh\u00e1c nhau tr\u00ean m\u1ea1ng internet. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 DNS Propagation.<\/p>\n<p>Th\u1eddi gian ho\u00e0n th\u00e0nh DNS Propagation c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u1eeb v\u00e0i ph\u00fat \u0111\u1ebfn 48 gi\u1edd, t\u00f9y thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 TTL (Time To Live), b\u1ed9 nh\u1edb cache c\u1ee7a m\u00e1y ch\u1ee7 DNS, v\u00e0 v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd. Trong th\u1eddi gian n\u00e0y, m\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o website v\u1edbi b\u1ea3n c\u1eadp nh\u1eadt m\u1edbi, trong khi nh\u1eefng ng\u01b0\u1eddi kh\u00e1c v\u1eabn th\u1ea5y d\u1eef li\u1ec7u c\u0169 do b\u1ed9 nh\u1edb cache ch\u01b0a \u0111\u01b0\u1ee3c l\u00e0m m\u1edbi.<\/p>\n<p>DNS Propagation l\u00e0 m\u1ed9t ph\u1ea7n t\u1ea5t y\u1ebfu trong qu\u1ea3n l\u00fd DNS, gi\u00fap \u0111\u1ea3m b\u1ea3o m\u1ecdi thay \u0111\u1ed5i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng m\u1ed9t c\u00e1ch th\u1ed1ng nh\u1ea5t tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<p><a href=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/dns-propagation.jpg\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-12174\" src=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/dns-propagation.jpg\" alt=\"dns propagation 2\" width=\"1460\" height=\"730\" \/><\/a><\/p>\n<h3>T\u1ea1i sao ph\u1ea3i th\u1ef1c hi\u1ec7n DNS Propagation?<\/h3>\n<p>DNS Propagation l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh b\u1eaft bu\u1ed9c ph\u1ea3i th\u1ef1c hi\u1ec7n do c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng ph\u00e2n t\u00e1n c\u1ee7a h\u1ec7 th\u1ed1ng DNS tr\u00ean to\u00e0n c\u1ea7u v\u00e0 c\u01a1 ch\u1ebf l\u01b0u tr\u1eef t\u1ea1m th\u1eddi (caching) c\u1ee7a c\u00e1c m\u00e1y ch\u1ee7 DNS.<\/p>\n<p>Khi b\u1ea1n th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i m\u1ed9t b\u1ea3n ghi DNS, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ea3n ghi A (\u0111\u1ecba ch\u1ec9 IP), b\u1ea3n ghi CNAME (b\u00ed danh), ho\u1eb7c b\u1ea3n ghi MX (m\u00e1y ch\u1ee7 email), c\u00e1c th\u00f4ng tin n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 \u0111\u1ed3ng b\u1ed9 tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng DNS to\u00e0n c\u1ea7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o t\u00e0i nguy\u00ean \u0111\u00fang \u0111\u1ecba ch\u1ec9. Tuy nhi\u00ean, h\u1ec7 th\u1ed1ng DNS kh\u00f4ng c\u00f3 c\u01a1 ch\u1ebf c\u1eadp nh\u1eadt t\u1ee9c th\u00ec cho t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7 DNS tr\u00ean internet.<\/p>\n<p>H\u1ec7 th\u1ed1ng DNS \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 v\u00e0 gi\u1ea3m t\u1ea3i th\u00f4ng qua vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb cache. M\u1ed7i m\u00e1y ch\u1ee7 DNS l\u01b0u tr\u1eef t\u1ea1m th\u1eddi th\u00f4ng tin b\u1ea3n ghi trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi tham s\u1ed1 TTL (Time To Live).<\/p>\n<p>Khi TTL ch\u01b0a h\u1ebft h\u1ea1n, c\u00e1c m\u00e1y ch\u1ee7 DNS s\u1ebd ti\u1ebfp t\u1ee5c s\u1eed d\u1ee5ng th\u00f4ng tin c\u0169 trong b\u1ed9 nh\u1edb cache, ngay c\u1ea3 khi b\u1ea1n \u0111\u00e3 th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS. Ch\u1ec9 sau khi TTL h\u1ebft h\u1ea1n, m\u00e1y ch\u1ee7 DNS m\u1edbi y\u00eau c\u1ea7u th\u00f4ng tin c\u1eadp nh\u1eadt t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 g\u1ed1c. Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra t\u1eeb t\u1eeb, v\u00ec c\u00e1c m\u00e1y ch\u1ee7 DNS tr\u00ean to\u00e0n th\u1ebf gi\u1edbi ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp v\u00e0 kh\u00f4ng c\u1eadp nh\u1eadt \u0111\u1ed3ng b\u1ed9 ngay l\u1eadp t\u1ee9c.<\/p>\n<p>DNS Propagation \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS m\u1edbi s\u1ebd d\u1ea7n \u0111\u01b0\u1ee3c lan truy\u1ec1n t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c \u0111\u1ebfn t\u1eebng c\u1ea5p m\u00e1y ch\u1ee7 trung gian, sau \u0111\u00f3 \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i tr\u00ean to\u00e0n c\u1ea7u. \u0110\u00e2y l\u00e0 c\u00e1ch h\u1ec7 th\u1ed1ng DNS duy tr\u00ec t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, \u0111\u1ed3ng th\u1eddi t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/p>\n<p>N\u1ebfu kh\u00f4ng c\u00f3 DNS Propagation, vi\u1ec7c thay \u0111\u1ed5i DNS c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 truy c\u1eadp v\u00e0o website, g\u1eb7p l\u1ed7i k\u1ebft n\u1ed1i, ho\u1eb7c d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u0169. Do \u0111\u00f3, qu\u00e1 tr\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt m\u00e0 c\u00f2n l\u00e0 y\u1ebfu t\u1ed1 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n, ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n c\u1ee7a th\u00f4ng tin tr\u00ean internet.<\/p>\n<p><a href=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/DNS-propagation-2.jpg\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-12173\" src=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/DNS-propagation-2.jpg\" alt=\"dns propagation 3\" width=\"818\" height=\"300\" \/><\/a><\/p>\n<h3>C\u00e1c c\u00f4ng c\u1ee5 ph\u1ee5c v\u1ee5 DNS Propagation<\/h3>\n<p>\u0110\u1ec3 h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh DNS Propagation v\u00e0 \u0111\u1ea3m b\u1ea3o c\u00e1c thay \u0111\u1ed5i DNS \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u00fang c\u00e1ch, nhi\u1ec1u c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nh\u1eb1m gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean theo d\u00f5i, ki\u1ec3m tra v\u00e0 qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3 h\u1ec7 th\u1ed1ng DNS.<\/p>\n<p>M\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 What's My DNS, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1eadp nh\u1eadt c\u1ee7a c\u00e1c b\u1ea3n ghi DNS tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7 DNS to\u00e0n c\u1ea7u. C\u00f4ng c\u1ee5 n\u00e0y cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a t\u1eebng m\u00e1y ch\u1ee7, gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng x\u00e1c \u0111\u1ecbnh n\u01a1i b\u1ea3n ghi \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 n\u01a1i v\u1eabn \u0111ang s\u1eed d\u1ee5ng th\u00f4ng tin c\u0169.<\/p>\n<p>Ngo\u00e0i ra, MXToolBox c\u0169ng l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn m\u1ea1nh m\u1ebd, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch v\u1edbi c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n ki\u1ec3m tra nhi\u1ec1u lo\u1ea1i b\u1ea3n ghi DNS nh\u01b0 A, CNAME, MX ho\u1eb7c TXT. MXToolBox kh\u00f4ng ch\u1ec9 cung c\u1ea5p tr\u1ea1ng th\u00e1i c\u1eadp nh\u1eadt c\u1ee7a DNS m\u00e0 c\u00f2n t\u00edch h\u1ee3p c\u00e1c t\u00ednh n\u0103ng ph\u00e2n t\u00edch n\u00e2ng cao nh\u01b0 ki\u1ec3m tra l\u1ed7i c\u1ea5u h\u00ecnh v\u00e0 b\u1ea3o m\u1eadt DNS.<\/p>\n<p>Google Admin Toolbox l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 mi\u1ec5n ph\u00ed t\u1eeb Google, h\u1ed7 tr\u1ee3 ki\u1ec3m tra v\u00e0 ph\u00e2n t\u00edch c\u00e1c b\u1ea3n ghi DNS v\u1edbi t\u1ed1c \u0111\u1ed9 cao. C\u00f4ng c\u1ee5 n\u00e0y r\u1ea5t h\u1eefu \u00edch \u0111\u1ec3 qu\u1ea3n tr\u1ecb vi\u00ean x\u00e1c minh r\u1eb1ng c\u00e1c thay \u0111\u1ed5i \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch tr\u00ean h\u1ec7 th\u1ed1ng DNS c\u1ee7a Google.<\/p>\n<p>\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng chuy\u00ean s\u00e2u, DNS Checker l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 to\u00e0n di\u1ec7n kh\u00e1c gi\u00fap theo d\u00f5i DNS Propagation tr\u00ean h\u01a1n 50 \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau tr\u00ean to\u00e0n c\u1ea7u. C\u00f4ng c\u1ee5 n\u00e0y c\u00f2n cung c\u1ea5p giao di\u1ec7n \u0111\u01a1n gi\u1ea3n v\u00e0 tr\u1ef1c quan, ph\u00f9 h\u1ee3p v\u1edbi c\u1ea3 ng\u01b0\u1eddi m\u1edbi v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean gi\u00e0u kinh nghi\u1ec7m.<\/p>\n<p>Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap theo d\u00f5i qu\u00e1 tr\u00ecnh DNS Propagation m\u00e0 c\u00f2n h\u1ed7 tr\u1ee3 ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1, t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd DNS v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng khi thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS.<\/p>\n<p><a href=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/dns-propagation-3.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-12172\" src=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/dns-propagation-3.png\" alt=\"dns propagation 4\" width=\"1566\" height=\"940\" \/><\/a><\/p>\n<h3>Quy tr\u00ecnh th\u1ef1c hi\u1ec7n DNS Propagation<\/h3>\n<p>Quy tr\u00ecnh th\u1ef1c hi\u1ec7n DNS Propagation l\u00e0 m\u1ed9t chu\u1ed7i c\u00e1c b\u01b0\u1edbc nh\u1eb1m \u0111\u1ed3ng b\u1ed9 h\u00f3a th\u00f4ng tin DNS m\u1edbi tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng m\u1ea1ng to\u00e0n c\u1ea7u, gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00ean mi\u1ec1n v\u00e0 \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c li\u00ean k\u1ebft ch\u00ednh x\u00e1c.<\/p>\n<p>Qu\u00e1 tr\u00ecnh b\u1eaft \u0111\u1ea7u khi qu\u1ea3n tr\u1ecb vi\u00ean th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i b\u1ea3n ghi DNS tr\u00ean m\u00e1y ch\u1ee7 g\u1ed1c (Authoritative DNS Server). Thay \u0111\u1ed5i n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m c\u1eadp nh\u1eadt b\u1ea3n ghi A (\u0111\u1ecba ch\u1ec9 IP), b\u1ea3n ghi CNAME (b\u00ed danh), ho\u1eb7c b\u1ea3n ghi MX (m\u00e1y ch\u1ee7 email). Sau khi c\u1eadp nh\u1eadt, m\u00e1y ch\u1ee7 g\u1ed1c l\u01b0u tr\u1eef th\u00f4ng tin m\u1edbi v\u00e0 b\u1eaft \u0111\u1ea7u g\u1eedi th\u00f4ng tin n\u00e0y t\u1edbi c\u00e1c m\u00e1y ch\u1ee7 DNS trung gian v\u00e0 m\u00e1y ch\u1ee7 c\u1ee7a c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet (ISP).<\/p>\n<p>Do c\u00e1c m\u00e1y ch\u1ee7 DNS trung gian s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf l\u01b0u tr\u1eef t\u1ea1m th\u1eddi (cache) \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp, th\u00f4ng tin c\u0169 c\u00f3 th\u1ec3 v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t kho\u1ea3ng th\u1eddi gian x\u00e1c \u0111\u1ecbnh, ph\u1ee5 thu\u1ed9c v\u00e0o gi\u00e1 tr\u1ecb TTL (Time To Live) \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh trong b\u1ea3n ghi DNS. TTL l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 m\u00e1y ch\u1ee7 DNS gi\u1eef th\u00f4ng tin trong b\u1ed9 nh\u1edb cache tr\u01b0\u1edbc khi y\u00eau c\u1ea7u th\u00f4ng tin m\u1edbi t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c. Khi TTL h\u1ebft h\u1ea1n, m\u00e1y ch\u1ee7 DNS s\u1ebd g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e1y ch\u1ee7 g\u1ed1c \u0111\u1ec3 nh\u1eadn d\u1eef li\u1ec7u m\u1edbi v\u00e0 ti\u1ebfp t\u1ee5c lan truy\u1ec1n th\u00f4ng tin n\u00e0y t\u1edbi c\u00e1c m\u00e1y ch\u1ee7 kh\u00e1c.<\/p>\n<p>Trong th\u1eddi gian DNS Propagation, d\u1eef li\u1ec7u DNS \u0111\u01b0\u1ee3c lan truy\u1ec1n qua nhi\u1ec1u l\u1edbp m\u00e1y ch\u1ee7 DNS tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Ng\u01b0\u1eddi d\u00f9ng \u1edf c\u00e1c khu v\u1ef1c kh\u00e1c nhau c\u00f3 th\u1ec3 g\u1eb7p t\u00ecnh tr\u1ea1ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t, khi m\u1ed9t s\u1ed1 \u0111\u00e3 truy c\u1eadp \u0111\u01b0\u1ee3c th\u00f4ng tin c\u1eadp nh\u1eadt, trong khi m\u1ed9t s\u1ed1 v\u1eabn \u0111ang k\u1ebft n\u1ed1i \u0111\u1ebfn th\u00f4ng tin c\u0169 do b\u1ed9 nh\u1edb cache c\u1ee7a m\u00e1y ch\u1ee7 DNS t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng ch\u01b0a \u0111\u01b0\u1ee3c l\u00e0m m\u1edbi. To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng m\u1ea5t t\u1eeb v\u00e0i ph\u00fat \u0111\u1ebfn 48 gi\u1edd, ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea5u h\u00ecnh TTL, t\u1ed1c \u0111\u1ed9 c\u1eadp nh\u1eadt c\u1ee7a m\u00e1y ch\u1ee7 ISP, v\u00e0 v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd.<\/p>\n<p>\u0110\u1ec3 theo d\u00f5i ti\u1ebfn tr\u00ecnh DNS Propagation, qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 What\u2019s My DNS ho\u1eb7c DNS Checker. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y cho ph\u00e9p ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1eadp nh\u1eadt c\u1ee7a c\u00e1c b\u1ea3n ghi DNS t\u1ea1i nhi\u1ec1u m\u00e1y ch\u1ee7 DNS tr\u00ean to\u00e0n c\u1ea7u, t\u1eeb \u0111\u00f3 gi\u00fap x\u00e1c \u0111\u1ecbnh khu v\u1ef1c n\u00e0o \u0111\u00e3 ho\u00e0n t\u1ea5t Propagation v\u00e0 khu v\u1ef1c n\u00e0o v\u1eabn \u0111ang s\u1eed d\u1ee5ng d\u1eef li\u1ec7u c\u0169. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c t\u00ecnh hu\u1ed1ng thay \u0111\u1ed5i l\u1edbn, nh\u01b0 chuy\u1ec3n \u0111\u1ed5i nh\u00e0 cung c\u1ea5p hosting ho\u1eb7c c\u1eadp nh\u1eadt c\u1ea5u tr\u00fac m\u1ea1ng c\u1ee7a website.<\/p>\n<h3>L\u01b0u \u00fd tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n DNS Propagation<\/h3>\n<p>Tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n DNS Propagation, qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n l\u01b0u \u00fd m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh di\u1ec5n ra su\u00f4n s\u1ebb v\u00e0 tr\u00e1nh c\u00e1c gi\u00e1n \u0111o\u1ea1n kh\u00f4ng mong mu\u1ed1n.<\/p>\n<p>\u0110\u1ea7u ti\u00ean, c\u1ea7n x\u00e1c \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng c\u00e1c thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS, bao g\u1ed3m c\u00e1c b\u1ea3n ghi nh\u01b0 A (\u0111\u1ecba ch\u1ec9 IP), CNAME (b\u00ed danh), MX (m\u00e1y ch\u1ee7 email), ho\u1eb7c TXT, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u00fang ch\u00ednh x\u00e1c v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u. Sai s\u00f3t trong c\u1ea5u h\u00ecnh DNS c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i k\u1ebft n\u1ed1i ho\u1eb7c m\u1ea5t d\u1eef li\u1ec7u.<\/p>\n<p>Th\u1ee9 hai, n\u00ean \u0111i\u1ec1u ch\u1ec9nh gi\u00e1 tr\u1ecb TTL (Time To Live) xu\u1ed1ng m\u1ee9c th\u1ea5p (ch\u1eb3ng h\u1ea1n 300 gi\u00e2y) tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i. Vi\u1ec7c n\u00e0y gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian b\u1ed9 nh\u1edb cache c\u1ee7a c\u00e1c m\u00e1y ch\u1ee7 DNS trung gian v\u00e0 ISP l\u01b0u th\u00f4ng tin c\u0169, t\u1eeb \u0111\u00f3 t\u0103ng t\u1ed1c \u0111\u1ed9 Propagation. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng TTL th\u1ea5p c\u00f3 th\u1ec3 t\u1ea1o th\u00eam t\u1ea3i cho m\u00e1y ch\u1ee7 g\u1ed1c, v\u00ec v\u1eady ch\u1ec9 n\u00ean \u00e1p d\u1ee5ng t\u1ea1m th\u1eddi trong qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i DNS.<\/p>\n<p>Ngo\u00e0i ra, c\u1ea7n th\u00f4ng b\u00e1o tr\u01b0\u1edbc cho c\u00e1c b\u00ean li\u00ean quan, \u0111\u1eb7c bi\u1ec7t n\u1ebfu thay \u0111\u1ed5i DNS \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 email, website, ho\u1eb7c \u1ee9ng d\u1ee5ng ph\u1ee5 thu\u1ed9c v\u00e0o t\u00ean mi\u1ec1n. Vi\u1ec7c n\u00e0y gi\u00fap h\u1ecd chu\u1ea9n b\u1ecb k\u1ebf ho\u1ea1ch d\u1ef1 ph\u00f2ng ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh k\u1ecbp th\u1eddi. \u0110\u1ed3ng th\u1eddi, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n c\u00f3 b\u1ea3n sao l\u01b0u d\u1eef li\u1ec7u DNS hi\u1ec7n t\u1ea1i \u0111\u1ec3 c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c nhanh ch\u00f3ng n\u1ebfu g\u1eb7p s\u1ef1 c\u1ed1.<\/p>\n<p>Cu\u1ed1i c\u00f9ng, s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra DNS nh\u01b0 What\u2019s My DNS, DNS Checker ho\u1eb7c MXToolBox \u0111\u1ec3 gi\u00e1m s\u00e1t qu\u00e1 tr\u00ecnh Propagation v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thay \u0111\u1ed5i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c t\u00ecnh hu\u1ed1ng thay \u0111\u1ed5i l\u1edbn, nh\u01b0 chuy\u1ec3n nh\u00e0 cung c\u1ea5p hosting ho\u1eb7c c\u1ea5u h\u00ecnh l\u1ea1i h\u1ec7 th\u1ed1ng m\u1ea1ng.<\/p>\n<p><a href=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/11\/hosting1.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-12017\" src=\"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/11\/hosting1.png\" alt=\"\" width=\"1238\" height=\"770\" \/><\/a><\/p>\n<p>T\u1ea1i Vi\u1ec7t Nam, Tenten.vn t\u1eeb l\u00e2u \u0111\u00e3 l\u00e0 m\u1ed9t nh\u00e0 cung c\u1ea5p hosting \u0111\u01b0\u1ee3c nhi\u1ec1u doanh nghi\u1ec7p tin d\u00f9ng. 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T\u1eeb A-Z v\u1ec1 d\u1ecbch v\u1ee5 Cloud Hosting Linux m\u1edbi nh\u1ea5t<\/a><\/li>\n<li class=\"title-article\"><a href=\"https:\/\/cloud.z.com\/vn\/news\/hosting-godaddy\/\">\u0110\u00e1nh gi\u00e1 chi ti\u1ebft \u01afu\/Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Hosting GoDaddy<\/a><\/li>\n<li class=\"title-article\"><a href=\"https:\/\/cloud.z.com\/vn\/news\/google-cloud-hosting\/\">Lo\u1ea1t \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a Google Cloud Hosting c\u00f3 th\u1ec3 b\u1ea1n ch\u01b0a bi\u1ebft<\/a><\/li>\n<li class=\"title-article\"><a href=\"https:\/\/cloud.z.com\/vn\/news\/tro-ten-mien\/\">H\u01b0\u1edbng d\u1eabn tr\u1ecf t\u00ean mi\u1ec1n v\u1ec1 Ladipage, tr\u1ecf t\u00ean mi\u1ec1n v\u1ec1 Hosting<\/a><\/li>\n<li class=\"title-article\"><a href=\"https:\/\/cloud.z.com\/vn\/news\/shared-hosting-va-vps-hosting\/\">So s\u00e1nh Shared Hosting v\u00e0 VPS Hosting: Lo\u1ea1i n\u00e0o c\u1ea7n cho b\u1ea1n?<\/a><\/li>\n<li class=\"title-article\"><a href=\"https:\/\/cloud.z.com\/vn\/news\/domain-va-hosting\/\">Ph\u00e2n bi\u1ec7t Domain v\u00e0 Hosting theo ti\u00eau ch\u00ed v\u00e0 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>DNS Propagation l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong l\u0129nh v\u1ef1c qu\u1ea3n tr\u1ecb website v\u00e0 h\u1ec7 th\u1ed1ng m\u1ea1ng, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng truy c\u1eadp c\u1ee7a ng\u01b0\u1eddi d\u00f9ng khi thay \u0111\u1ed5i c\u1ea5u h\u00ecnh DNS. Trong b\u00e0i vi\u1ebft n\u00e0y,...<\/p>\n","protected":false},"author":28,"featured_media":12171,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[177,83],"tags":[],"jetpack_featured_media_url":"https:\/\/cloud.z.com\/vn\/wp-content\/uploads\/2024\/12\/DNS-propagation-4.jpg","_links":{"self":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/12169"}],"collection":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/comments?post=12169"}],"version-history":[{"count":4,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/12169\/revisions"}],"predecessor-version":[{"id":12246,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/12169\/revisions\/12246"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media\/12171"}],"wp:attachment":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media?parent=12169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/categories?post=12169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/tags?post=12169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}