{"id":11942,"date":"2024-11-23T09:22:29","date_gmt":"2024-11-23T02:22:29","guid":{"rendered":"https:\/\/cloud.z.com\/vn\/?p=11942"},"modified":"2024-11-20T09:23:07","modified_gmt":"2024-11-20T02:23:07","slug":"dns-record","status":"publish","type":"post","link":"https:\/\/cloud.z.com\/vn\/en\/news\/dns-record\/","title":{"rendered":"11 lo\u1ea1i DNS Record ph\u1ed5 bi\u1ebfn v\u00e0 ch\u1ee9c n\u0103ng c\u1ea7n bi\u1ebft"},"content":{"rendered":"<p>DNS Record (b\u1ea3n ghi DNS) l\u00e0 c\u00e1c th\u00f4ng tin \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean m\u00e1y ch\u1ee7 DNS, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c k\u1ebft n\u1ed1i t\u00ean mi\u1ec1n v\u1edbi \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7. V\u1edbi t\u1ea7m quan tr\u1ecdng nh\u01b0 v\u1eady, vi\u1ec7c hi\u1ec3u v\u00e0 c\u1ea5u h\u00ecnh \u0111\u00fang DNS Record l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho m\u1ecdi qu\u1ea3n tr\u1ecb vi\u00ean website.<\/p>\n<p><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;\">WordPress 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><\/p>\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>3K\/ng\u00e0y<\/strong>\u00a0k\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 26px; font-size: 20px; line-height: 30px; border-radius: 56px; text-shadow: none; background: #0066ff; display: table; margin: 0px auto;\" href=\"https:\/\/tenten.vn\/hosting\/wordpress-hosting?code=XFviGsVgCtfDqAIz&amp;idCampaign=3361\">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<h2><strong>DNS Record l\u00e0 g\u00ec?<\/strong><\/h2>\n<p>DNS Record (Domain Name System Record) l\u00e0 c\u00e1c b\u1ea3n ghi \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 DNS, ch\u1ecbu tr\u00e1ch nhi\u1ec7m h\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ean mi\u1ec1n k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7, \u1ee9ng d\u1ee5ng, ho\u1eb7c d\u1ecbch v\u1ee5 kh\u00e1c. M\u1ed7i b\u1ea3n ghi DNS ch\u1ee9a th\u00f4ng tin c\u1ee5 th\u1ec3 v\u1ec1 t\u00ean mi\u1ec1n, \u0111\u1ecba ch\u1ec9 IP ho\u1eb7c c\u00e1c thi\u1ebft l\u1eadp d\u1ecbch v\u1ee5 li\u00ean quan, gi\u00fap t\u00ean mi\u1ec1n ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<div id=\"attachment_25529\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25529\" loading=\"lazy\" class=\"wp-image-25529\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-2-3.jpeg\" alt=\"DNS Record l\u00e0 g\u00ec?\" width=\"1200\" height=\"600\" \/><p id=\"caption-attachment-25529\" class=\"wp-caption-text\">DNS Record l\u00e0 g\u00ec?<\/p><\/div>\n<p>DNS Record ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t \u201cb\u1ea3n \u0111\u1ed3 ch\u1ec9 \u0111\u01b0\u1eddng\u201d tr\u00ean internet, \u0111\u1ea3m b\u1ea3o r\u1eb1ng khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp t\u00ean mi\u1ec1n v\u00e0o tr\u00ecnh duy\u1ec7t, h\u1ecd \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ebfn \u0111\u00fang m\u00e1y ch\u1ee7 \u0111\u1ec3 truy c\u1eadp n\u1ed9i dung website ho\u1eb7c d\u1ecbch v\u1ee5 mong mu\u1ed1n.<\/p>\n<h2><strong>Ph\u00e2n lo\u1ea1i DNS Record \u0111\u1ea7y \u0111\u1ee7 v\u00e0 chi ti\u1ebft nh\u1ea5t hi\u1ec7n nay<\/strong><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 11 lo\u1ea1i DNS Record ph\u1ed5 bi\u1ebfn v\u1edbi nh\u1eefng ch\u1ee9c n\u0103ng quan tr\u1ecdng m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ea7n bi\u1ebft<\/p>\n<h3><strong>1. SOA Record (Start of Authority)<\/strong><\/h3>\n<p>SOA Record l\u00e0 b\u1ea3n ghi b\u1eaft bu\u1ed9c v\u00e0 duy nh\u1ea5t trong m\u1ed7i t\u1eadp tin c\u01a1 s\u1edf d\u1eef li\u1ec7u DNS, cung c\u1ea5p th\u00f4ng tin v\u1ec1 domain tr\u00ean DNS Server v\u00e0 th\u00f4ng tin v\u1ec1 zone transfer bao g\u1ed3m:<\/p>\n<ul>\n<li>Master DNS: Gi\u00e1 tr\u1ecb DNS ch\u00ednh c\u1ee7a t\u00ean mi\u1ec1n ho\u1eb7c m\u00e1y ch\u1ee7.<\/li>\n<li>Email qu\u1ea3n tr\u1ecb: \u0110\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i t\u1eeb d\u1ea1ng admin@tuanda.com, th\u1ec3 hi\u1ec7n ch\u1ee7 s\u1edf h\u1eefu t\u00ean mi\u1ec1n.<\/li>\n<li>Serial: \u0110\u1ecbnh d\u1ea1ng YYYYMMDDNN, d\u00f9ng \u0111\u1ec3 theo d\u00f5i v\u00e0 c\u1eadp nh\u1eadt d\u1eef li\u1ec7u trong zone.<\/li>\n<li>Refresh: Kho\u1ea3ng th\u1eddi gian m\u00e1y ch\u1ee7 Secondary ki\u1ec3m tra v\u00e0 c\u1eadp nh\u1eadt d\u1eef li\u1ec7u t\u1eeb m\u00e1y ch\u1ee7 Primary.<\/li>\n<li>Retry: Th\u1eddi gian ch\u1edd khi m\u00e1y ch\u1ee7 Secondary kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi m\u00e1y ch\u1ee7 Primary, th\u01b0\u1eddng nh\u1ecf h\u01a1n refresh.<\/li>\n<li>Expire: Th\u1eddi gian sau \u0111\u00f3 d\u1eef li\u1ec7u tr\u00ean m\u00e1y ch\u1ee7 Secondary s\u1ebd qu\u00e1 h\u1ea1n n\u1ebfu kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi Primary, l\u1edbn h\u01a1n refresh v\u00e0 retry.<\/li>\n<li>TTL (Time to Live): Th\u1eddi gian m\u00e0 c\u00e1c m\u00e1y ch\u1ee7 name server kh\u00e1c cache th\u00f4ng tin tr\u1ea3 l\u1eddi.<\/li>\n<\/ul>\n<p>SOA Record \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi thay \u0111\u1ed5i trong h\u1ec7 th\u1ed1ng DNS \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a ch\u00ednh x\u00e1c tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<div id=\"attachment_25530\" style=\"width: 675px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25530\" loading=\"lazy\" class=\"wp-image-25530\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-3-3.png\" alt=\"SOA Record (Start of Authority)\" width=\"665\" height=\"163\" \/><p id=\"caption-attachment-25530\" class=\"wp-caption-text\">SOA Record (Start of Authority)<\/p><\/div>\n<p>&nbsp;<\/p>\n<h3><strong>2. NS Record (Name Server)<\/strong><\/h3>\n<p>Ti\u1ebfp theo, c\u1ea7n ph\u1ea3i c\u00f3 NS Record (Name Server Record) trong zone. M\u1ed7i name server trong m\u1ed9t zone s\u1ebd c\u00f3 m\u1ed9t NS Record ri\u00eang. NS Record ch\u1ee9a \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 DNS, c\u00f9ng v\u1edbi c\u00e1c th\u00f4ng tin li\u00ean quan \u0111\u1ebfn t\u00ean mi\u1ec1n \u0111\u00f3.<\/p>\n<p>NS Record l\u00e0 b\u1ea3n ghi DNS quan tr\u1ecdng, x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 n\u00e0o ch\u1ecbu tr\u00e1ch nhi\u1ec7m khai b\u00e1o v\u00e0 qu\u1ea3n l\u00fd th\u00f4ng tin c\u1ee7a m\u1ed9t t\u00ean mi\u1ec1n c\u1ee5 th\u1ec3, gi\u00fap \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy c\u1eadp trang web \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS ch\u00ednh x\u00e1c.<\/p>\n<h3><strong>3. Record A (Address Record)<\/strong><\/h3>\n<p>RECORD A l\u00e0 m\u1ed9t b\u1ea3n ghi c\u01a1 b\u1ea3n v\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng DNS, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u00e1nh x\u1ea1 t\u00ean mi\u1ec1n (domain) th\u00e0nh \u0111\u1ecba ch\u1ec9 IP. A Record chuy\u1ec3n t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP IPv4. T\u1eeb \u0111\u00f3 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o website th\u00f4ng qua t\u00ean mi\u1ec1n. \u0110\u00e2y l\u00e0 ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a h\u1ec7 th\u1ed1ng DNS.<\/p>\n<div id=\"attachment_25531\" style=\"width: 387px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25531\" loading=\"lazy\" class=\"wp-image-25531\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-4-3.png\" alt=\"Record A (Address Record)\" width=\"377\" height=\"274\" \/><p id=\"caption-attachment-25531\" class=\"wp-caption-text\">Record A (Address Record)<\/p><\/div>\n<p>N\u1ebfu kh\u00f4ng c\u00f3 c\u00e1c b\u1ea3n ghi n\u00e0y, URL s\u1ebd kh\u00f4ng th\u1ec3 tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng kh\u00f4ng th\u1ec3 ph\u00e2n gi\u1ea3i v\u00e0 trang web s\u1ebd kh\u00f4ng hi\u1ec3n th\u1ecb. B\u00ean c\u1ea1nh t\u00ean mi\u1ec1n ch\u00ednh, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 th\u00eam b\u1ea3n ghi A cho t\u00ean m\u00e1y ch\u1ee7 v\u00e0 b\u1ea5t k\u1ef3 t\u00ean mi\u1ec1n ph\u1ee5 n\u00e0o c\u1ea7n ph\u00e2n gi\u1ea3i \u0111\u1ebfn m\u1ed9t m\u00e1y ch\u1ee7 kh\u00e1c. Tr\u01b0\u1eddng \"Data\" c\u1ee7a b\u1ea3n ghi A lu\u00f4n ch\u1ee9a \u0111\u1ecba ch\u1ec9 IP.<\/p>\n<p>Record A gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi y\u00eau c\u1ea7u truy c\u1eadp v\u00e0o t\u00ean mi\u1ec1n s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn \u0111\u00fang \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7, t\u1eeb \u0111\u00f3 hi\u1ec3n th\u1ecb trang web m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 nhanh ch\u00f3ng.<\/p>\n<p>V\u00ed d\u1ee5: Khi b\u1ea1n nh\u1eadp example.com, A Record s\u1ebd tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP nh\u01b0 192.168.1.1.<\/p>\n<h3><strong>4. Record AAAA<\/strong><\/h3>\n<p>Record AAAA t\u01b0\u01a1ng t\u1ef1 nh\u01b0 Record A, nh\u01b0ng d\u00e0nh cho \u0111\u1ecba ch\u1ec9 IP phi\u00ean b\u1ea3n IPv6. IPv6 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thay th\u1ebf IPv4, cung c\u1ea5p nhi\u1ec1u \u0111\u1ecba ch\u1ec9 h\u01a1n \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u m\u1edf r\u1ed9ng c\u1ee7a internet.<\/p>\n<p>V\u00ed d\u1ee5: example.com c\u00f3 th\u1ec3 tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IPv6 nh\u01b0 2001:0db8:85a3:0000:0000:8a2e:0370:7334.<\/p>\n<h3><strong>5. PTR Record (Pointer Record)<\/strong><\/h3>\n<p>H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n th\u00f4ng th\u01b0\u1eddng chuy\u1ec3n \u0111\u1ed5i t\u1eeb t\u00ean mi\u1ec1n sang \u0111\u1ecba ch\u1ec9 IP. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 Internet y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 DNS ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i ng\u01b0\u1ee3c, t\u1eeb \u0111\u1ecba ch\u1ec9 IP sang t\u00ean mi\u1ec1n. T\u00ean mi\u1ec1n ng\u01b0\u1ee3c n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c t\u00ecnh hu\u1ed1ng x\u00e1c th\u1ef1c email g\u1eedi \u0111i.<\/p>\n<div id=\"attachment_25532\" style=\"width: 1290px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25532\" loading=\"lazy\" class=\"wp-image-25532\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-5-3.jpeg\" alt=\"PTR Record (Pointer Record)\" width=\"1280\" height=\"720\" \/><p id=\"caption-attachment-25532\" class=\"wp-caption-text\">PTR Record (Pointer Record)<\/p><\/div>\n<p>B\u1ea3n ghi PTR c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem nh\u01b0 b\u1ea3n ghi DNS ng\u01b0\u1ee3c l\u1ea1i v\u1edbi A record. Trong khi A record chuy\u1ec3n \u0111\u1ed5i t\u1eeb t\u00ean mi\u1ec1n sang \u0111\u1ecba ch\u1ec9 IP, b\u1ea3n ghi PTR chuy\u1ec3n \u0111\u1ed5i t\u1eeb \u0111\u1ecba ch\u1ec9 IP sang t\u00ean mi\u1ec1n. \u0110i\u1ec1u n\u00e0y gi\u00fap x\u00e1c th\u1ef1c \u0111\u1ecba ch\u1ec9 IP c\u1ee7a c\u00e1c hostname g\u1eedi t\u1edbi, h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng spam mail v\u00e0 n\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt cho h\u1ec7 th\u1ed1ng email.<\/p>\n<p>V\u00ed d\u1ee5: \u0110\u1ecba ch\u1ec9 IP 192.168.1.1 s\u1ebd \u0111\u01b0\u1ee3c tr\u1ecf v\u1ec1 example.com.<\/p>\n<h3><strong>6. SRV Record (Service Record)<\/strong><\/h3>\n<p>B\u1ea3n ghi SRV \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 \u0111\u1eb7c bi\u1ec7t trong m\u1ed9t t\u00ean mi\u1ec1n. N\u00f3 cho bi\u1ebft th\u00f4ng tin v\u1ec1 t\u00ean m\u00e1y ch\u1ee7 v\u00e0 s\u1ed1 c\u1ed5ng c\u1ee7a c\u00e1c m\u00e1y ch\u1ee7 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh. C\u00e1c tr\u01b0\u1eddng th\u00f4ng tin trong b\u1ea3n ghi SRV bao g\u1ed3m:<\/p>\n<ul>\n<li>T\u00ean d\u1ecbch v\u1ee5: Ch\u1ec9 \u0111\u1ecbnh lo\u1ea1i d\u1ecbch v\u1ee5.<\/li>\n<li>Giao th\u1ee9c s\u1eed d\u1ee5ng: V\u00ed d\u1ee5 nh\u01b0 TCP hay UDP.<\/li>\n<li>T\u00ean mi\u1ec1n (domain name): T\u00ean mi\u1ec1n li\u00ean quan.<\/li>\n<li>TTL (Time to Live): Th\u1eddi gian b\u1ea3n ghi \u0111\u01b0\u1ee3c gi\u1eef trong cache.<\/li>\n<li>Class: Lu\u00f4n l\u00e0 IN (Internet).<\/li>\n<li>\u01afu ti\u00ean: M\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean c\u1ee7a host, s\u1ed1 c\u00e0ng nh\u1ecf th\u00ec \u01b0u ti\u00ean c\u00e0ng cao.<\/li>\n<li>Tr\u1ecdng l\u01b0\u1ee3ng: Khi c\u00e1c host c\u00f3 c\u00f9ng m\u1ee9c \u01b0u ti\u00ean, tr\u1ecdng l\u01b0\u1ee3ng l\u1edbn h\u01a1n s\u1ebd \u0111\u01b0\u1ee3c ch\u1ecdn nhi\u1ec1u h\u01a1n, h\u1ed7 tr\u1ee3 c\u00e2n b\u1eb1ng t\u1ea3i.<\/li>\n<li>Port: C\u1ed5ng d\u1ecbch v\u1ee5 (TCP ho\u1eb7c UDP).<\/li>\n<li>Target: Ch\u1ec9 \u0111\u1ecbnh FQDN (Fully Qualified Domain Name) cho host h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5.<\/li>\n<\/ul>\n<p>B\u1ea3n ghi SRV gi\u00fap h\u1ec7 th\u1ed1ng DNS x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 v\u00e0 c\u1ed5ng d\u1ecbch v\u1ee5 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3, \u0111\u1ea3m b\u1ea3o c\u00e1c d\u1ecbch v\u1ee5 \u0111\u1eb7c bi\u1ec7t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t.<\/p>\n<p>V\u00ed d\u1ee5, n\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 email doanh nghi\u1ec7p, SRV Record s\u1ebd x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 c\u1ee5 th\u1ec3 x\u1eed l\u00fd email g\u1eedi \u0111i ho\u1eb7c \u0111\u1ebfn.<\/p>\n<h3><strong>CNAME Record (Canonical Name Record)<\/strong><\/h3>\n<p>B\u1ea3n ghi CNAME cho ph\u00e9p t\u00ean mi\u1ec1n c\u00f3 nhi\u1ec1u b\u00ed danh kh\u00e1c nhau. Khi truy c\u1eadp c\u00e1c b\u00ed danh n\u00e0y, y\u00eau c\u1ea7u s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n v\u1ec1 m\u1ed9t \u0111\u1ecba ch\u1ec9 t\u00ean mi\u1ec1n ch\u00ednh. \u0110\u1ec3 s\u1eed d\u1ee5ng b\u1ea3n ghi CNAME, b\u1ea1n c\u1ea7n khai b\u00e1o b\u1ea3n ghi A tr\u01b0\u1edbc.<\/p>\n<div id=\"attachment_25533\" style=\"width: 1416px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25533\" loading=\"lazy\" class=\"wp-image-25533\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-6-3.png\" alt=\"CNAME Record (Canonical Name Record)\" width=\"1406\" height=\"1726\" \/><p id=\"caption-attachment-25533\" class=\"wp-caption-text\">CNAME Record (Canonical Name Record)<\/p><\/div>\n<p>V\u00ed d\u1ee5, khi m\u1ed9t y\u00eau c\u1ea7u \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 www.example.com, DNS s\u1ebd t\u00ecm \u0111\u1ebfn t\u00ean mi\u1ec1n ch\u00ednh \"example\" th\u00f4ng qua b\u1ea3n ghi CNAME. Sau \u0111\u00f3, m\u1ed9t truy v\u1ea5n DNS m\u1edbi s\u1ebd ti\u1ebfp t\u1ee5c t\u00ecm \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP 103.101.161.201 th\u00f4ng qua b\u1ea3n ghi A.<\/p>\n<p>B\u1ea3n ghi CNAME ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t alias tr\u1ecf m\u1ee5c nh\u1eadp tr\u1edf l\u1ea1i t\u00ean mi\u1ec1n ch\u00ednh. N\u1ebfu tr\u00ecnh duy\u1ec7t y\u00eau c\u1ea7u m\u1ed9t trang t\u1eeb t\u00ean mi\u1ec1n ph\u1ee5, m\u00e1y ch\u1ee7 s\u1ebd \u0111\u1ecbnh tuy\u1ebfn y\u00eau c\u1ea7u \u0111\u1ebfn th\u01b0 m\u1ee5c th\u00edch h\u1ee3p. N\u1ebfu b\u1ea1n th\u01b0\u1eddng xuy\u00ean t\u1ea1o b\u1ea3n ghi cho t\u00ean mi\u1ec1n ph\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 th\u00eam k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n CNAME \u0111\u1ec3 \u0111\u00e1p \u1ee9ng m\u1ecdi y\u00eau c\u1ea7u cho t\u00ean mi\u1ec1n ph\u1ee5 m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea3n ghi ri\u00eang. \u0110\u1ec3 t\u1ea1o k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n, b\u1ea1n ch\u1ec9 c\u1ea7n nh\u1eadp d\u1ea5u hoa th\u1ecb v\u00e0o tr\u01b0\u1eddng Name.<\/p>\n<h3><strong>MX Record (Mail Exchange Record)<\/strong><\/h3>\n<p>B\u1ea3n ghi MX (Mail Exchange) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 chuy\u1ec3n h\u01b0\u1edbng email \u0111\u1ebfn domain ho\u1eb7c subdomain \u0111\u00edch. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea3n ghi MX kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i tr\u1ecf \u0111\u1ebfn hosting, VPS, hay server c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 email c\u1ee7a b\u00ean th\u1ee9 ba nh\u01b0 Gmail, b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c b\u1ea3n ghi MX do nh\u00e0 cung c\u1ea5p \u0111\u00f3 cung c\u1ea5p.<\/p>\n<div id=\"attachment_25534\" style=\"width: 671px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25534\" loading=\"lazy\" class=\"wp-image-25534\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-7-3.png\" alt=\"MX Record (Mail Exchange Record)\" width=\"661\" height=\"415\" \/><p id=\"caption-attachment-25534\" class=\"wp-caption-text\">MX Record (Mail Exchange Record)<\/p><\/div>\n<p>Khi t\u1ea1o b\u1ea3n ghi MX, b\u1ea1n s\u1ebd c\u1ea7n cung c\u1ea5p th\u00f4ng tin \u1edf hai tr\u01b0\u1eddng: Priority v\u00e0 Exchange.<\/p>\n<ul>\n<li>Priority: L\u00e0 m\u1ed9t con s\u1ed1 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean. Mail s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn m\u1ee5c nh\u1eadp MX c\u00f3 s\u1ed1 Priority th\u1ea5p nh\u1ea5t (\u01b0u ti\u00ean cao nh\u1ea5t). B\u1ea1n n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00e0i \u0111\u1eb7t do nh\u00e0 cung c\u1ea5p email ho\u1eb7c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec1 xu\u1ea5t.<\/li>\n<li>Exchange: L\u00e0 m\u00e1y ch\u1ee7 m\u00e0 mail s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn. \u0110i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 ch\u00ednh x\u1eed l\u00fd c\u00e1c email g\u1eedi \u0111\u1ebfn t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<p>B\u1ea3n ghi MX gi\u00fap qu\u1ea3n l\u00fd c\u00e1ch x\u1eed l\u00fd email cho domain c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n<p>V\u00ed d\u1ee5: N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 email t\u1eeb Google Workspace, MX Record s\u1ebd tr\u1ecf email \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a Google, \u0111\u1ea3m b\u1ea3o email \u0111\u01b0\u1ee3c g\u1eedi v\u00e0 nh\u1eadn \u0111\u00fang \u0111\u1ecba ch\u1ec9.<\/p>\n<h3><strong>TXT Record<\/strong><\/h3>\n<p>B\u1ea3n ghi TXT (text) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 li\u00ean k\u1ebft v\u0103n b\u1ea3n t\u00f9y \u00fd v\u1edbi m\u00e1y ch\u1ee7, ch\u1ee7 y\u1ebfu nh\u1eb1m m\u1ee5c \u0111\u00edch x\u00e1c th\u1ef1c m\u00e1y ch\u1ee7 v\u1edbi t\u00ean mi\u1ec1n.<\/p>\n<p>TXT Record l\u01b0u tr\u1eef c\u00e1c th\u00f4ng tin b\u1ed5 sung d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c minh t\u00ean mi\u1ec1n, c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt email (nh\u01b0 SPF, DKIM), ho\u1eb7c x\u00e1c th\u1ef1c v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 b\u00ean th\u1ee9 ba.<\/p>\n<p>V\u00ed d\u1ee5: M\u1ed9t TXT Record c\u00f3 th\u1ec3 ch\u1ee9a th\u00f4ng tin x\u00e1c minh t\u00ean mi\u1ec1n v\u1edbi Google Search Console.<\/p>\n<h3><strong>DKIM Record (DomainKeys Identified Mail)<\/strong><\/h3>\n<p>B\u1ea3n ghi DKIM (DomainKeys Identified Mail) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c ng\u01b0\u1eddi g\u1eedi email b\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a m\u1ed9t ph\u1ea7n email b\u1eb1ng chu\u1ed7i k\u00fd t\u1ef1, ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1eef k\u00fd s\u1ed1. Khi email \u0111\u01b0\u1ee3c g\u1eedi \u0111i, m\u00e1y ch\u1ee7 mail s\u1ebd so s\u00e1nh v\u1edbi th\u00f4ng tin \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh trong DNS \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh x\u00e1c th\u1ef1c.<\/p>\n<div id=\"attachment_25535\" style=\"width: 1722px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-25535\" loading=\"lazy\" class=\"wp-image-25535\" src=\"https:\/\/www.hostify.vn\/blog\/wp-content\/uploads\/2024\/11\/word-image-25503-8-3.png\" alt=\"DKIM Record (DomainKeys Identified Mail)\" width=\"1712\" height=\"922\" \/><p id=\"caption-attachment-25535\" class=\"wp-caption-text\">DKIM Record (DomainKeys Identified Mail)<\/p><\/div>\n<h3><strong>SPF Record (Sender Policy Framework)<\/strong><\/h3>\n<p>B\u1ea3n ghi SPF (Sender Policy Framework) \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c m\u00e1y ch\u1ee7 mail ch\u1ec9 ch\u1ea5p nh\u1eadn email t\u1eeb t\u00ean mi\u1ec1n c\u1ee7a kh\u00e1ch h\u00e0ng n\u1ebfu email \u0111\u01b0\u1ee3c g\u1eedi \u0111i t\u1eeb server \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ec3 gi\u00fap ng\u0103n ch\u1eb7n spam v\u00e0 gi\u1ea3 m\u1ea1o email. T\u00f9y v\u00e0o h\u1ec7 th\u1ed1ng DNS, b\u1ea3n ghi SPF c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb d\u01b0\u1edbi d\u1ea1ng SPF ho\u1eb7c TXT.<\/p>\n<p>M\u00e1y ch\u1ee7 ti\u1ebfp nh\u1eadn mail s\u1ebd ki\u1ec3m tra IP c\u1ee7a m\u00e1y ch\u1ee7 g\u1eedi v\u00e0 so s\u00e1nh v\u1edbi IP \u0111\u00e3 \u0111\u0103ng k\u00fd trong b\u1ea3n ghi SPF. N\u1ebfu kh\u00e1ch h\u00e0ng c\u00f3 nhi\u1ec1u m\u00e1y ch\u1ee7 mail, n\u00ean li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 trong b\u1ea3n ghi SPF \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o th\u01b0 \u0111\u1ebfn \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<p>V\u00ed d\u1ee5: SPF Record c\u1ee7a t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u1ecbnh r\u1eb1ng ch\u1ec9 m\u00e1y ch\u1ee7 c\u1ee7a Google m\u1edbi \u0111\u01b0\u1ee3c ph\u00e9p g\u1eedi email t\u1eeb t\u00ean mi\u1ec1n example.com.<\/p>\n<h2><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n<p>DNS Record \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ecdi website, t\u1eeb vi\u1ec7c \u0111\u1ea3m b\u1ea3o truy c\u1eadp nhanh ch\u00f3ng, ch\u00ednh x\u00e1c \u0111\u1ebfn h\u1ed7 tr\u1ee3 b\u1ea3o m\u1eadt v\u00e0 giao ti\u1ebfp email. H\u00e3y d\u00e0nh th\u1eddi gian \u0111\u1ec3 ki\u1ec3m tra v\u00e0 c\u1ea5u h\u00ecnh DNS Record ph\u00f9 h\u1ee3p \u0111\u1ec3 gi\u00fap website c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o m\u1eadt.<\/p>\n<p>Tenten.vn l\u00e0 m\u1ed9t trong nh\u1eefng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 hosting h\u00e0ng \u0111\u1ea7u t\u1ea1i Vi\u1ec7t Nam, \u0111\u01b0\u1ee3c nhi\u1ec1u c\u00e1 nh\u00e2n v\u00e0 doanh nghi\u1ec7p tin d\u00f9ng. V\u1edbi c\u00e1c g\u00f3i hosting \u0111a d\u1ea1ng, hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, c\u00f9ng ch\u00ednh s\u00e1ch gi\u00e1 c\u1ea3 h\u1ee3p l\u00fd, Tenten.vn mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u cho vi\u1ec7c l\u01b0u tr\u1eef website v\u00e0 \u1ee9ng d\u1ee5ng tr\u1ef1c tuy\u1ebfn. \u0110\u1eb7c bi\u1ec7t, d\u1ecbch v\u1ee5 hosting t\u1ea1i \u0111\u00e2y \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p nhi\u1ec1u t\u00ednh n\u0103ng v\u01b0\u1ee3t tr\u1ed9i nh\u01b0 t\u1ed1c \u0111\u1ed9 truy c\u1eadp nhanh, b\u1ea3o m\u1eadt cao, h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7, \u0111\u1ea3m b\u1ea3o website c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0 v\u00e0 an to\u00e0n. 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V\u1edbi t\u1ea7m quan tr\u1ecdng nh\u01b0 v\u1eady,...<\/p>\n","protected":false},"author":28,"featured_media":11943,"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\/11\/dns-record.jpeg","_links":{"self":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11942"}],"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=11942"}],"version-history":[{"count":2,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11942\/revisions"}],"predecessor-version":[{"id":11958,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/posts\/11942\/revisions\/11958"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media\/11943"}],"wp:attachment":[{"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/media?parent=11942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/categories?post=11942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cloud.z.com\/vn\/en\/wp-json\/wp\/v2\/tags?post=11942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}