{"id":12370133,"date":"2026-03-15T08:32:37","date_gmt":"2026-03-15T00:32:37","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e5%9f%9f%e5%90%8d%e6%b3%a8%e5%86%8c%e3%80%81%e7%ae%a1%e7%90%86%e4%b8%8e%e9%85%8d%e7%bd%ae%e5%85%a8%e6%8c%87%e5%8d%97%ef%bc%9a%e4%bb%8e%e5%85%a5%e9%97%a8%e5%88%b0%e7%b2%be%e9%80%9a\/"},"modified":"2026-03-15T09:29:53","modified_gmt":"2026-03-15T01:29:53","slug":"domain-registration-management-configuration-guide","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/domain\/domain-registration-management-configuration-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 \u0111\u0103ng k\u00fd, qu\u1ea3n l\u00fd v\u00e0 c\u1ea5u h\u00ecnh t\u00ean mi\u1ec1n: T\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao"},"content":{"rendered":"

Trong th\u1ebf gi\u1edbi internet, t\u00ean mi\u1ec1n (domain name) ch\u00ednh l\u00e0 \u201cb\u1ea3n s\u1eafc s\u1ed1\u201d v\u00e0 \u201c\u0111\u1ecba ch\u1ec9 tr\u1ef1c tuy\u1ebfn\u201d c\u1ee7a b\u1ea1n, \u0111\u1ed3ng th\u1eddi l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n ch\u00ednh \u0111\u1ec3 kh\u00e1ch truy c\u1eadp t\u00ecm th\u1ea5y trang web c\u1ee7a b\u1ea1n. D\u00f9 b\u1ea1n l\u00e0 m\u1ed9t blogger c\u00e1 nh\u00e2n m\u1edbi b\u1eaft \u0111\u1ea7u x\u00e2y d\u1ef1ng trang web, hay l\u00e0 ch\u1ee7 doanh nghi\u1ec7p mu\u1ed1n m\u1edf r\u1ed9ng ho\u1ea1t \u0111\u1ed9ng kinh doanh tr\u1ef1c tuy\u1ebfn, vi\u1ec7c n\u1eafm v\u1eefng to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb vi\u1ec7c \u0111\u0103ng k\u00fd \u0111\u1ebfn c\u1ea5u h\u00ecnh t\u00ean mi\u1ec1n \u0111\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n m\u1ed9t c\u00e1ch chi ti\u1ebft \u0111\u1ec3 ho\u00e0n th\u00e0nh quy tr\u00ecnh n\u00e0y, gi\u00fap b\u1ea1n x\u00e2y d\u1ef1ng v\u00e0 duy tr\u00ec m\u1ed9t n\u1ec1n t\u1ea3ng tr\u1ef1c tuy\u1ebfn v\u1eefng ch\u1eafc.<\/p>\n\n\n\n

Ph\u00e2n t\u00edch to\u00e0n b\u1ed9 quy tr\u00ecnh \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n<\/h2>\n\n\n\n

\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 b\u1ea1n \u201cchi\u1ebfm l\u0129nh m\u1ed9t ph\u1ea7n \u0111\u1ea5t\u201d tr\u00ean internet. Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n, nh\u01b0ng th\u1ef1c ch\u1ea5t bao g\u1ed3m nhi\u1ec1u quy\u1ebft \u0111\u1ecbnh c\u00f3 t\u1ea7m \u1ea3nh h\u01b0\u1edfng s\u00e2u r\u1ed9ng.<\/p>\n\n\n\n

Tr\u01b0\u1edbc h\u1ebft, b\u1ea1n c\u1ea7n ch\u1ecdn m\u1ed9t t\u00ean mi\u1ec1n ph\u00f9 h\u1ee3p. M\u1ed9t t\u00ean mi\u1ec1n l\u00fd t\u01b0\u1edfng n\u00ean ng\u1eafn g\u1ecdn, d\u1ec5 nh\u1edb, d\u1ec5 \u0111\u00e1nh v\u1ea7n, v\u00e0 t\u1ed1t nh\u1ea5t l\u00e0 n\u00f3 ph\u1ea3n \u00e1nh \u0111\u01b0\u1ee3c th\u01b0\u01a1ng hi\u1ec7u, ng\u00e0nh ngh\u1ec1 ho\u1eb7c n\u1ed9i dung ch\u00ednh c\u1ee7a trang web c\u1ee7a b\u1ea1n. H\u00e3y tr\u00e1nh s\u1eed d\u1ee5ng d\u1ea5u g\u1ea1ch n\u1ed1i, ch\u1eef s\u1ed1 ho\u1eb7c nh\u1eefng c\u00e1ch \u0111\u00e1nh v\u1ea7n d\u1ec5 g\u00e2y nh\u1ea7m l\u1eabn. Sau khi ch\u1ecdn \u0111\u01b0\u1ee3c t\u00ean mi\u1ec1n \u01b0a th\u00edch, b\u1ea1n c\u1ea7n ki\u1ec3m tra xem n\u00f3 c\u00f3 s\u1eb5n kh\u00f4ng b\u1eb1ng c\u00f4ng c\u1ee5 \u201cWHOIS\u201d do nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n cung c\u1ea5p.<\/p>\n\n\n\n

Ti\u1ebfp theo l\u00e0 b\u01b0\u1edbc ch\u1ecdn nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n (registrar). Tr\u00ean th\u1ebf gi\u1edbi c\u00f3 r\u1ea5t nhi\u1ec1u nh\u00e0 \u0111\u0103ng k\u00fd \u0111\u01b0\u1ee3c ICANN ch\u1ee9ng nh\u1eadn, ch\u1eb3ng h\u1ea1n nh\u01b0 Alibaba Cloud, Tencent Cloud, GoDaddy, Namecheap, v.v. Khi l\u1ef1a ch\u1ecdn, b\u1ea1n n\u00ean xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 gi\u00e1 c\u1ea3, giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng, ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng, t\u00ednh n\u0103ng qu\u1ea3n l\u00fd DNS, v\u00e0 li\u1ec7u h\u1ecd c\u00f3 cung c\u1ea5p d\u1ecbch v\u1ee5 b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 mi\u1ec5n ph\u00ed hay kh\u00f4ng. Nhi\u1ec1u nh\u00e0 \u0111\u0103ng k\u00fd s\u1ebd \u00e1p d\u1ee5ng m\u1ee9c gi\u00e1 \u01b0u \u0111\u00e3i trong n\u0103m \u0111\u1ea7u ti\u00ean, nh\u01b0ng b\u1ea1n nh\u1ea5t \u0111\u1ecbnh ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn gi\u00e1 c\u1ea3 khi gia h\u1ea1n h\u1ee3p \u0111\u1ed3ng.<\/p>\n\n\n\n

Sau khi ho\u00e0n t\u1ea5t vi\u1ec7c ch\u1ecdn l\u1ef1a, b\u1ea1n s\u1ebd b\u01b0\u1edbc v\u00e0o quy tr\u00ecnh mua h\u00e0ng. B\u1ea1n c\u1ea7n cung c\u1ea5p th\u00f4ng tin ch\u00ednh x\u00e1c v\u1ec1 ng\u01b0\u1eddi \u0111\u0103ng k\u00fd, ng\u01b0\u1eddi qu\u1ea3n l\u00fd, ng\u01b0\u1eddi ph\u1ee5 tr\u00e1ch k\u1ef9 thu\u1eadt v\u00e0 ng\u01b0\u1eddi li\u00ean h\u1ec7 v\u1ec1 h\u00f3a \u0111\u01a1n. Theo y\u00eau c\u1ea7u c\u1ee7a c\u01a1 quan \u0111\u0103ng k\u00fd, m\u1ed9t s\u1ed1 t\u00ean mi\u1ec1n c\u1ea5p cao (ch\u1eb3ng h\u1ea1n nh\u01b0 .cn) c\u00f3 th\u1ec3 y\u00eau c\u1ea7u b\u1ea1n n\u1ed9p th\u00eam c\u00e1c t\u00e0i li\u1ec7u x\u00e1c th\u1ef1c danh t\u00ednh. Sau khi thanh to\u00e1n th\u00e0nh c\u00f4ng, t\u00ean mi\u1ec1n th\u01b0\u1eddng s\u1ebd \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd v\u00e0 c\u00f3 hi\u1ec7u l\u1ef1c trong v\u00f2ng v\u00e0i ph\u00fat \u0111\u1ebfn v\u00e0i gi\u1edd.<\/p>\n\n\n

\n\n
\n \u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n hosting.com<\/strong>\n
Th\u00f4ng qua g\u00f3i l\u01b0u tr\u1eef chia s\u1ebb h\u00e0ng n\u0103m, nh\u1eadn t\u00ean mi\u1ec1n .com mi\u1ec5n ph\u00ed trong m\u1ed9t n\u0103m, h\u1ed7 tr\u1ee3 300+ h\u1eadu t\u1ed1 t\u00ean mi\u1ec1n, qu\u1ea3n l\u00fd DNS mi\u1ec5n ph\u00ed, h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng 24\/7<\/div>\n <\/div>\n\n
\n \n \n \"\u0110\u0103ng\n \n \n <\/a>\n \n \n Truy c\u1eadp hosting.com <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

Khi \u0111\u0103ng k\u00fd, th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n (nh\u01b0 t\u00ean, \u0111\u1ecba ch\u1ec9, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i, email) s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef m\u1eb7c \u0111\u1ecbnh trong c\u01a1 s\u1edf d\u1eef li\u1ec7u WHOIS c\u00f4ng khai, v\u00e0 b\u1ea5t k\u1ef3 ai c\u0169ng c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o ch\u00fang. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nguy c\u01a1 nh\u1eadn th\u01b0 r\u00e1c, cu\u1ed9c g\u1ecdi qu\u1ea5y r\u1ed1i ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 vi\u1ec7c b\u1ecb \u0111\u00e1nh c\u1eafp danh t\u00ednh. Do \u0111\u00f3, ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean b\u1eadt d\u1ecbch v\u1ee5 \u201cB\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 t\u00ean mi\u1ec1n\u201d (Domain Privacy Protection). D\u1ecbch v\u1ee5 n\u00e0y s\u1ebd thay th\u1ebf th\u00f4ng tin th\u1ef1c t\u1ebf c\u1ee7a b\u1ea1n b\u1eb1ng th\u00f4ng tin c\u1ee7a nh\u00e0 \u0111\u0103ng k\u00fd ho\u1eb7c c\u00f4ng ty \u0111\u1ea1i l\u00fd, nh\u1eb1m b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

Chi ti\u1ebft v\u1ec1 giao di\u1ec7n qu\u1ea3n tr\u1ecb t\u00ean mi\u1ec1n (Domain Name Management Backend)<\/h2>\n\n\n\n

Sau khi \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n th\u00e0nh c\u00f4ng, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c quy\u1ec1n truy c\u1eadp v\u00e0o giao di\u1ec7n qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n. \u0110\u00e2y ch\u00ednh l\u00e0 trung t\u00e2m quan tr\u1ecdng gi\u00fap b\u1ea1n ki\u1ec3m so\u00e1t to\u00e0n di\u1ec7n t\u00ean mi\u1ec1n c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

C\u00e1c t\u00ednh n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a giao di\u1ec7n qu\u1ea3n tr\u1ecb bao g\u1ed3m vi\u1ec7c ch\u1ec9nh s\u1eeda th\u00f4ng tin t\u00ean mi\u1ec1n. B\u1ea1n c\u00f3 th\u1ec3 c\u1eadp nh\u1eadt th\u00f4ng tin chi ti\u1ebft nh\u01b0 ng\u01b0\u1eddi \u0111\u0103ng k\u00fd, qu\u1ea3n l\u00fd th\u00f4ng tin li\u00ean h\u1ec7, v.v. T\u1ea1i \u0111\u00e2y. Khi b\u1ea1n c\u1ea7n chuy\u1ec3n t\u00ean mi\u1ec1n sang nh\u00e0 \u0111\u0103ng k\u00fd kh\u00e1c ho\u1eb7c th\u1ef1c hi\u1ec7n x\u00e1c th\u1ef1c quy\u1ec1n s\u1edf h\u1eefu, vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c th\u00f4ng tin n\u00e0y l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n

Qu\u1ea3n l\u00fd DNS (H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n) l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4-\u0111un ch\u1ee9c n\u0103ng quan tr\u1ecdng nh\u1ea5t \u1edf ph\u00eda backend. B\u1ea1n c\u00f3 th\u1ec3 th\u00eam, s\u1eeda \u0111\u1ed5i ho\u1eb7c x\u00f3a c\u00e1c lo\u1ea1i b\u1ea3n ghi DNS kh\u00e1c nhau t\u1ea1i \u0111\u00e2y. B\u1ea3n ghi A \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 li\u00ean k\u1ebft t\u00ean mi\u1ec1n v\u1edbi \u0111\u1ecba ch\u1ec9 IPv4 c\u1ee7a m\u00e1y ch\u1ee7; b\u1ea3n ghi AAAA t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u0111\u1ecba ch\u1ec9 IPv6; b\u1ea3n ghi CNAME th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft c\u00e1c t\u00ean mi\u1ec1n con (nh\u01b0\u2026). www<\/code>\u0110\u01b0\u1eddng d\u1eabn (A record) tr\u1ecf \u0111\u1ebfn m\u1ed9t t\u00ean mi\u1ec1n kh\u00e1c; b\u1ea3n ghi MX (Mail Exchange record) c\u00f3 nhi\u1ec7m v\u1ee5 \u0111\u1ecbnh tuy\u1ebfn email, quy\u1ebft \u0111\u1ecbnh m\u00e1y ch\u1ee7 n\u00e0o s\u1ebd x\u1eed l\u00fd email \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n. Vi\u1ec7c c\u1ea5u h\u00ecnh ch\u00ednh x\u00e1c c\u00e1c b\u1ea3n ghi n\u00e0y l\u00e0 y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n \u0111\u1ec3 trang web v\u00e0 d\u1ecbch v\u1ee5 email ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n

Ngo\u00e0i ra, h\u1ec7 th\u1ed1ng n\u1ec1n t\u1ea3ng c\u00f2n cung c\u1ea5p t\u00ednh n\u0103ng kh\u00f3a t\u00ean mi\u1ec1n. Vi\u1ec7c b\u1eadt ch\u1ee9c n\u0103ng \u201cKh\u00f3a b\u1edfi nh\u00e0 \u0111\u0103ng k\u00fd\u201d (Registrar Lock) c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ch\u1eb7n vi\u1ec7c chuy\u1ec3n nh\u01b0\u1ee3ng t\u00ean mi\u1ec1n m\u1ed9t c\u00e1ch tr\u00e1i ph\u00e9p, \u0111\u00e2y l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 quan tr\u1ecdng cho an ninh t\u00ean mi\u1ec1n. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd c\u00e0i \u0111\u1eb7t t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n t\u00ean mi\u1ec1n t\u1ea1i \u0111\u00e2y, nh\u1eb1m tr\u00e1nh t\u00ecnh tr\u1ea1ng t\u00ean mi\u1ec1n h\u1ebft h\u1ea1n v\u00e0 b\u1ecb x\u00f3a do qu\u00ean kh\u00f4ng gia h\u1ea1n.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 thi\u1ebft l\u1eadp chuy\u1ec3n h\u01b0\u1edbng t\u00ean mi\u1ec1n?<\/h3>\n\n\n\n

Chuy\u1ec3n h\u01b0\u1edbng t\u00ean mi\u1ec1n (hay c\u00f2n g\u1ecdi l\u00e0 chuy\u1ec3n h\u01b0\u1edbng URL) l\u00e0 m\u1ed9t t\u00ednh n\u0103ng r\u1ea5t h\u1eefu \u00edch. N\u00f3 cho ph\u00e9p t\u1ef1 \u0111\u1ed9ng \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0o t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n \u0111\u1ebfn m\u1ed9t \u0111\u1ecba ch\u1ec9 web kh\u00e1c \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh tr\u01b0\u1edbc. V\u00ed d\u1ee5, n\u1ebfu b\u1ea1n \u0111\u00e3 \u0111\u0103ng k\u00fd m\u1ed9t t\u00ean mi\u1ec1n nh\u1ea5t \u0111\u1ecbnh, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5 yourbrand.com<\/code> \u548c yourbrand.net<\/code>B\u1ea1n c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp \u0111\u1ec3 h\u1ec7 th\u1ed1ng chuy\u1ec3n h\u01b0\u1edbng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp t\u1eeb ngu\u1ed3n th\u1ee9 hai \u0111\u1ebfn ngu\u1ed3n th\u1ee9 nh\u1ea5t, nh\u1edd \u0111\u00f3 t\u1eadp trung l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0o ngu\u1ed3n ch\u00ednh th\u1ee9c v\u00e0 b\u1ea3o v\u1ec7 th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n\n\n\n

Principles of DNS Configuration and Resolution<\/h2>\n\n\n\n

Sau khi hi\u1ec3u r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a giao di\u1ec7n qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n, ch\u00fang ta c\u1ea7n t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u1ed1t l\u00f5i k\u1ef9 thu\u1eadt \u0111\u1eb1ng sau n\u00f3: qu\u00e1 tr\u00ecnh gi\u1ea3i m\u00e3 DNS (Domain Name System). DNS gi\u1ed1ng nh\u01b0 m\u1ed9t \u201cs\u1ed5 \u0111i\u1ec7n tho\u1ea1i\u201d to\u00e0n c\u1ea7u, c\u00f3 nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00ean mi\u1ec1n d\u1ec5 \u0111\u1ecdc cho con ng\u01b0\u1eddi (ch\u1eb3ng h\u1ea1n nh example.com<\/code>\u0110\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111\u1ecba ch\u1ec9 IP c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00e1y t\u00ednh nh\u1eadn di\u1ec7n (v\u00ed d\u1ee5: 192.0.2.1<\/code>\uff09\u3002<\/p>\n\n\n\n

Khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n v\u00e0o tr\u00ecnh duy\u1ec7t, qu\u00e1 tr\u00ecnh gi\u1ea3i quy\u1ebft (resolution) s\u1ebd b\u1eaft \u0111\u1ea7u. Thi\u1ebft b\u1ecb c\u1ee7a ng\u01b0\u1eddi d\u00f9ng s\u1ebd tr\u01b0\u1edbc ti\u00ean ki\u1ec3m tra b\u1ed9 nh\u1edb \u0111\u1ec7m DNS (DNS cache) tr\u00ean m\u00e1y, n\u1ebfu kh\u00f4ng t\u00ecm th\u1ea5y th\u00f4ng tin n\u00e0o, n\u00f3 s\u1ebd g\u1eedi y\u00eau c\u1ea7u t\u00ecm ki\u1ebfm \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS tu\u1ea7n t\u1ef1 (recursive DNS server), th\u01b0\u1eddng \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP). M\u00e1y ch\u1ee7 DNS tu\u1ea7n t\u1ef1 s\u1ebd b\u1eaft \u0111\u1ea7u t\u1eeb m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n g\u1ed1c (root domain server) v\u00e0 ti\u1ebfp t\u1ee5c ki\u1ec3m tra c\u00e1c m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n c\u1ea5p cao (top-level domain servers) the .com<\/code> C\u00e1c m\u00e1y ch\u1ee7 n\u00e0y (bao g\u1ed3m m\u00e1y ch\u1ee7 DNS ch\u00ednh th\u1ee9c c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet, m\u00e1y ch\u1ee7 DNS do nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n cung c\u1ea5p, ho\u1eb7c m\u00e1y ch\u1ee7 DNS t\u00f9y ch\u1ec9nh m\u00e0 b\u1ea1n s\u1eed d\u1ee5ng) s\u1ebd th\u1ef1c hi\u1ec7n vi\u1ec7c tra c\u1ee9u \u0111\u1ec3 t\u00ecm \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u, sau \u0111\u00f3 tr\u1ea3 v\u1ec1 \u0111<\/p>\n\n\n

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\n \u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n UltaHost<\/strong>\n
H\u01a1n 300 \u0111u\u00f4i t\u00ean mi\u1ec1n, ch\u1ecdn g\u00f3i l\u01b0u tr\u1eef h\u00e0ng n\u0103m, t\u1eadn h\u01b0\u1edfng t\u00ean mi\u1ec1n mi\u1ec5n ph\u00ed! Chuy\u1ec3n t\u00ean mi\u1ec1n sang Ultahost \u0111\u1ec3 \u0111\u01b0\u1ee3c gia h\u1ea1n mi\u1ec5n ph\u00ed m\u1ed9t n\u0103m, .com $9.49 n\u0103m \u0111\u1ea7u ti\u00ean<\/div>\n <\/div>\n\n
\n \n \n \"\u0110\u0103ng\n \n \n <\/a>\n \n \n Truy c\u1eadp UltaHost <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\n

\u0110\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 t\u00ednh s\u1eb5n s\u00e0ng s\u1eed d\u1ee5ng c\u1ee7a trang web, b\u1ea1n c\u00f3 th\u1ec3 xem x\u00e9t s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 DNS chuy\u00ean nghi\u1ec7p c\u1ee7a b\u00ean th\u1ee9 ba nh\u01b0 Cloudflare, DNSpod ho\u1eb7c AWS Route 53. Nh\u1eefng d\u1ecbch v\u1ee5 n\u00e0y th\u01b0\u1eddng cung c\u1ea5p t\u1ed1c \u0111\u1ed9 gi\u1ea3i quy\u1ebft y\u00eau c\u1ea7u (\u89e3\u6790) nhanh h\u01a1n, \u0111\u1ed9 tin c\u1eady cao h\u01a1n, kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS t\u1ed1t h\u01a1n, c\u00f9ng v\u1edbi nhi\u1ec1u t\u00ednh n\u0103ng qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng phong ph\u00fa h\u01a1n. B\u1ea1n ch\u1ec9 c\u1ea7n thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 DNS ch\u00ednh th\u1ee9c (authoritative DNS server) c\u1ee7a t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 do nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 cung c\u1ea5p \u0111\u1ec3 k\u00edch ho\u1ea1t c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a h\u1ecd.<\/p>\n\n\n\n

Hi\u1ec3u gi\u00e1 tr\u1ecb TTL (Time To Live)<\/h3>\n\n\n\n

TTL (Time To Live) l\u00e0 th\u1eddi gian m\u00e0 m\u1ed9t DNS (Domain Name System) record \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 \u0111\u1ec7m (cache servers) \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 kh\u00e1c nhau, \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng gi\u00e2y. Gi\u00e1 tr\u1ecb TTL quy\u1ebft \u0111\u1ecbnh th\u1eddi gian m\u00e0 record \u0111\u00f3 s\u1ebd c\u00f2n hi\u1ec7u l\u1ef1c tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 \u0111\u1ec7m \u0111\u00f3. Khi b\u1ea1n c\u1ea7n thay \u0111\u1ed5i th\u00f4ng tin trong DNS record (ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7), m\u1ed9t gi\u00e1 tr\u1ecb TTL th\u1ea5p h\u01a1n (v\u00ed d\u1ee5: 300 gi\u00e2y) s\u1ebd gi\u00fap thay \u0111\u1ed5i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nhanh h\u01a1n tr\u00ean to\u00e0n c\u1ea7u. Ng\u01b0\u1ee3c l\u1ea1i, trong giai \u0111o\u1ea1n record \u0111ang \u1ed5n \u0111\u1ecbnh, m\u1ed9t gi\u00e1 tr\u1ecb TTL cao h\u01a1n s\u1ebd gi\u00fap gi\u1ea3m s\u1ed1 l\u1ea7n truy v\u1ea5n v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 gi\u1ea3i quy\u1ebft y\u00eau c\u1ea7u tr<\/p>\n\n\n\n

C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho b\u1ea3o m\u1eadt v\u00e0 b\u1ea3o tr\u00ec t\u00ean mi\u1ec1n<\/h2>\n\n\n\n

An ninh c\u1ee7a t\u00ean mi\u1ec1n c\u00f3 li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn an ninh to\u00e0n b\u1ed9 t\u00e0i s\u1ea3n tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n. M\u1ed9t khi t\u00ean mi\u1ec1n b\u1ecb \u0111\u00e1nh c\u1eafp ho\u1eb7c m\u1ea5t ki\u1ec3m so\u00e1t, trang web, email, th\u1eadm ch\u00ed danh ti\u1ebfng th\u01b0\u01a1ng hi\u1ec7u \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n

\u0110\u1ea3m b\u1ea3o an ninh t\u00e0i kho\u1ea3n l\u00e0 b\u01b0\u1edbc ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean. H\u00e3y thi\u1ebft l\u1eadp m\u1ed9t m\u1eadt kh\u1ea9u m\u1ea1nh m\u1ebd v\u00e0 duy nh\u1ea5t cho t\u00e0i kho\u1ea3n nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n, v\u00e0 \u0111\u1eebng qu\u00ean k\u00edch ho\u1ea1t x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 (two-factor authentication). Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t m\u1eadt kh\u1ea9u tr\u00ean nhi\u1ec1u trang web \u0111\u1ec3 tr\u00e1nh b\u1ecb t\u1ea5n c\u00f4ng t\u1eeb vi\u1ec7c l\u1ed9 d\u1eef li\u1ec7u m\u1eadt kh\u1ea9u (password cracking).<\/p>\n\n\n\n

Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u01b0\u1edbc \u0111\u00f3, h\u00e3y lu\u00f4n b\u1eadt t\u00ednh n\u0103ng \u201cKh\u00f3a nh\u00e0 \u0111\u0103ng k\u00fd\u201d (Registrar Lock). Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 xem th\u00f4ng tin WHOIS c\u1ee7a t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n c\u00f3 ch\u00ednh x\u00e1c kh\u00f4ng v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1ecbch v\u1ee5 b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 \u0111ang \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. H\u00e3y c\u1ea3nh gi\u00e1c v\u1edbi c\u00e1c email l\u1eeba \u0111\u1ea3o tr\u1ef1c tuy\u1ebfn; b\u1ea5t k\u1ef3 email n\u00e0o tuy\u00ean b\u1ed1 \u0111\u1ebfn t\u1eeb nh\u00e0 \u0111\u0103ng k\u00fd, y\u00eau c\u1ea7u b\u1ea1n nh\u1ea5p v\u00e0o li\u00ean k\u1ebft \u0111\u1ec3 \u0111\u0103ng nh\u1eadp ho\u1eb7c cung c\u1ea5p th\u00f4ng tin t\u00e0i kho\u1ea3n \u0111\u1ec1u c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng. T\u1ed1t nh\u1ea5t l\u00e0 truy c\u1eadp trang qu\u1ea3n tr\u1ecb tr\u1ef1c ti\u1ebfp th\u00f4ng qua \u0111\u1ecba ch\u1ec9 web ch\u00ednh th\u1ee9c c\u1ee7a nh\u00e0 \u0111\u0103ng k\u00fd \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t<\/p>\n\n\n\n

Vi\u1ec7c qu\u1ea3n l\u00fd vi\u1ec7c gia h\u1ea1n t\u00ean mi\u1ec1n l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 b\u1ecf qua. Khuy\u1ebfn ngh\u1ecb b\u1ea1n b\u1eadt ch\u1ee9c n\u0103ng t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c thanh to\u00e1n \u0111\u01b0\u1ee3c li\u00ean k\u1ebft l\u00e0 h\u1ee3p l\u1ec7. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t l\u1eddi nh\u1eafc tr\u00ean l\u1ecbch tr\u01b0\u1edbc ng\u00e0y h\u1ebft h\u1ea1n m\u1ed9t th\u00e1ng \u0111\u1ec3 x\u00e1c nh\u1eadn vi\u1ec7c gia h\u1ea1n th\u1ee7 c\u00f4ng. H\u00e3y t\u00ecm hi\u1ec3u r\u00f5 ch\u00ednh s\u00e1ch v\u1ec1 th\u1eddi gian gia h\u1ea1n v\u00e0 th\u1eddi gian ho\u00e0n l\u1ea1i t\u00ean mi\u1ec1n c\u1ee7a nh\u00e0 \u0111\u0103ng k\u00fd, nh\u1eb1m tr\u00e1nh t\u00ecnh tr\u1ea1ng t\u00ean mi\u1ec1n b\u1ecb x\u00f3a do h\u1ebft h\u1ea1n, d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u1ea3i tr\u1ea3 gi\u00e1 cao \u0111\u1ec3 ho\u00e0n l\u1ea1i ho\u1eb7c th<\/p>\n\n

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\r\n\t\t\t\t\t\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n Bluehost<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\tH\u1ed7 tr\u1ee3 tr\u00ecnh t\u1ea1o t\u00ean mi\u1ec1n AI, d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 24\/7<\/span>\r\n\t\t\t\t
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T\u1ea1o t\u00ean mi\u1ec1n b\u1eb1ng AI<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp Bluehost \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n\t\r\n\t
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\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"WordPress.com\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t
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\r\n\t\t\t\t\tWordPress.com \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\tCh\u1ecdn g\u00f3i cao c\u1ea5p nh\u1ea5t \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m gi\u00e1 l\u00ean \u0111\u1ebfn 69% + mi\u1ec5n ph\u00ed chuy\u1ec3n t\u00ean mi\u1ec1n, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd t\u1eeb .com, .blog v\u00e0 h\u01a1n 350 \u0111u\u00f4i t\u00ean mi\u1ec1n kh\u00e1c.<\/span>\r\n\t\t\t\t
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Mua g\u00f3i thanh to\u00e1n h\u00e0ng n\u0103m, t\u00ean mi\u1ec1n mi\u1ec5n ph\u00ed n\u0103m \u0111\u1ea7u ti\u00ean<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp \u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n WordPress.com \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n<\/div>\r\n\r\n\r\n\n\n\n\n\n\n\n

Khi b\u1ea1n c\u1ea7n thay \u0111\u1ed5i m\u00e1y ch\u1ee7 web ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 email, v\u1ec1 c\u01a1 b\u1ea3n b\u1ea1n \u0111ang thay \u0111\u1ed5i c\u00e1c b\u1ea3n ghi A (A Record) ho\u1eb7c MX (MX Record) trong h\u1ec7 th\u1ed1ng DNS. H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1ecbch v\u1ee5 m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ea7y \u0111\u1ee7 v\u00e0 ki\u1ec3m th\u1eed k\u1ef9 l\u01b0\u1ee1ng tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i tr\u00ean h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd DNS. \u0110\u1ed3ng th\u1eddi, h\u00e3y s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb TTL (Time To Live) th\u1ea5p h\u01a1n \u0111\u1ec3 gi\u1ea3m th\u1eddi gian m\u1ea5t hi\u1ec7u l\u1ef1c trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n

Chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ed1i ph\u00f3 v\u1edbi vi\u1ec7c chi\u1ebfm \u0111o\u1ea1t t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

Vi\u1ec7c chi\u1ebfm \u0111o\u1ea1t t\u00ean mi\u1ec1n l\u00e0 m\u1ed9t m\u1ed1i \u0111e d\u1ecda nghi\u00eam tr\u1ecdng. C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba bao g\u1ed3m: s\u1eed d\u1ee5ng m\u1ed9t email an to\u00e0n l\u00e0m email li\u00ean h\u1ec7 khi \u0111\u0103ng k\u00fd v\u00e0 b\u1ea3o v\u1ec7 email \u0111\u00f3 m\u1ed9t c\u00e1ch ch\u1eb7t ch\u1ebd; ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 xem li\u1ec7u c\u00e1c b\u1ea3n ghi DNS c\u00f3 b\u1ecb s\u1eeda \u0111\u1ed5i hay kh\u00f4ng; theo d\u00f5i t\u00ecnh tr\u1ea1ng gi\u1ea3i quy\u1ebft (resolution) c\u1ee7a t\u00ean mi\u1ec1n. Ngay khi ph\u00e1t hi\u1ec7n t\u00ean mi\u1ec1n b\u1ecb chuy\u1ec3n nh\u01b0\u1ee3ng tr\u00e1i ph\u00e9p, c\u1ea7n li\u00ean h\u1ec7 ngay v\u1edbi nh\u00e0 \u0111\u0103ng k\u00fd ban \u0111\u1ea7u v\u00e0 y\u00eau c\u1ea7u kh\u00f4i ph\u1ee5c t\u00ean mi\u1ec1n theo ch\u00ednh s\u00e1ch chuy\u1ec3n nh\u01b0\u1ee3ng c\u1ee7a ICANN.<\/p>\n\n\n\n

T\u00f3m l\u1ea1i<\/h2>\n\n\n\n

T\u00ean mi\u1ec1n l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n cho s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a b\u1ea1n tr\u00ean m\u1ea1ng; vi\u1ec7c \u0111\u0103ng k\u00fd, qu\u1ea3n l\u00fd v\u00e0 c\u1ea5u h\u00ecnh n\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c xuy\u00ean su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a trang web. T\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t t\u00ean mi\u1ec1n ph\u00f9 h\u1ee3p m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn, \u0111\u1ebfn vi\u1ec7c ho\u00e0n t\u1ea5t th\u1ee7 t\u1ee5c \u0111\u0103ng k\u00fd an to\u00e0n th\u00f4ng qua n\u1ec1n t\u1ea3ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, ti\u1ebfp theo l\u00e0 hi\u1ec3u r\u00f5 v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c c\u1ea5u h\u00ecnh DNS m\u1ed9t c\u00e1ch th\u00e0nh th\u1ea1o, v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 \u00e1p d\u1ee5ng nh\u1eefng bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt nh\u1ea5t qu\u00e1n, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u r\u1ea5t quan tr\u1ecdng. B\u1eb1ng c\u00e1ch n\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c v\u00e0 k\u1ef9 n\u0103ng \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c truy c\u1eadp \u1ed5n \u0111\u1ecbnh cho trang web v\u00e0 d\u1ecbch v\u1ee5 c\u1ee7a m\u00ecnh m\u00e0 c\u00f2n ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd \u201cb\u1ea3n s\u1eafc k\u1ef9 thu\u1eadt s\u1ed1\u201d c\u1ee7a m\u00ecnh, t\u1eeb \u0111\u00f3 x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho s\u1ef1 ph\u00e1t tri\u1ec3n tr\u1ef1c tuy\u1ebfn trong t\u01b0\u01a1ng la<\/p>\n\n\n\n

FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n

T\u1ea1i sao sau khi \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 truy c\u1eadp v\u00e0o trang web ngay l\u1eadp t\u1ee9c?<\/h3>\n\n\n\n

Vi\u1ec7c \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n th\u00e0nh c\u00f4ng ch\u1ec9 mang l\u1ea1i quy\u1ec1n s\u1eed d\u1ee5ng t\u00ean \u0111\u00f3. \u0110\u1ec3 trang web c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy c\u1eadp, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n hai b\u01b0\u1edbc quan tr\u1ecdng: Th\u1ee9 nh\u1ea5t, mua ho\u1eb7c s\u1edf h\u1eefu kh\u00f4ng gian l\u01b0u tr\u1eef trang web (m\u00e1y ch\u1ee7 \u1ea3o\/m\u00e1y ch\u1ee7) v\u00e0 nh\u1eadn \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng; Th\u1ee9 hai, trong giao di\u1ec7n qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n, h\u00e3y thi\u1ebft l\u1eadp \u0111\u00fang c\u00e1c b\u1ea3n ghi A (ho\u1eb7c CNAME) \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn t\u00ean mi\u1ec1n \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP \u0111\u00f3 (ho\u1eb7c t\u00ean mi\u1ec1n ph\u1ee5 do nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 cung c\u1ea5p). C\u00e1c b\u1ea3n ghi DNS c\u1ea7n th\u1eddi gian \u0111\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i tr\u00ean to\u00e0n c\u1ea7u, qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 m\u1ea5t t\u1eeb v\u00e0i ph\u00fat \u0111\u1ebfn 48 gi\u1edd.<\/p>\n\n\n\n

T\u00f4i c\u00f3 th\u1ec3 gia h\u1ea1n t\u00ean mi\u1ec1n sau bao l\u00e2u k\u1ec3 t\u1eeb khi n\u00f3 h\u1ebft h\u1ea1n?<\/h3>\n\n\n\n

Sau khi h\u1ebft h\u1ea1n, t\u00ean mi\u1ec1n th\u01b0\u1eddng kh\u00f4ng b\u1ecb x\u00f3a ngay l\u1eadp t\u1ee9c m\u00e0 tr\u1ea3i qua m\u1ed9t s\u1ed1 giai \u0111o\u1ea1n. Giai \u0111o\u1ea1n \u0111\u1ea7u ti\u00ean l\u00e0 \u201cth\u1eddi gian \u00e2n h\u1ea1n\u201d (grace period), th\u01b0\u1eddng k\u00e9o d\u00e0i kho\u1ea3ng 30 ng\u00e0y; trong th\u1eddi gian n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 gia h\u1ea1n t\u00ean mi\u1ec1n v\u1edbi m\u1ee9c gi\u00e1 b\u00ecnh th\u01b0\u1eddng, tuy nhi\u00ean ch\u1ee9c n\u0103ng c\u1ee7a t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 b\u1ecb t\u1ea1m ng\u1eebng. Khi th\u1eddi gian \u00e2n h\u1ea1n k\u1ebft th\u00fac, t\u00ean mi\u1ec1n b\u01b0\u1edbc v\u00e0o \u201cgiai \u0111o\u1ea1n ho\u00e0n l\u1ea1i\u201d (redeemption period), c\u0169ng kho\u1ea3ng 30 ng\u00e0y; trong giai \u0111o\u1ea1n n\u00e0y, vi\u1ec7c gia h\u1ea1n s\u1ebd y\u00eau c\u1ea7u b\u1ea1n ph\u1ea3i thanh to\u00e1n m\u1ed9t kho\u1ea3n ph\u00ed ho\u00e0n l\u1ea1i cao. Sau khi giai \u0111o\u1ea1n ho\u00e0n l\u1ea1i k\u1ebft th\u00fac, t\u00ean mi\u1ec1n s\u1ebd b\u1ecb x\u00f3a ho\u00e0n to\u00e0n v\u00e0 \u0111\u01b0\u1ee3c m\u1edf ra cho c\u00f4ng ch\u00fang \u0111\u0103ng k\u00fd l\u1ea1i. Th\u1eddi gian c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo nh\u00e0 \u0111\u0103ng k\u00fd v\u00e0 lo\u1ea1i t\u00ean mi\u1ec1n (top-level domain); v\u00ec v\u1eady, h\u00e3y ch\u1eafc ch\u1eafn t<\/p>\n\n\n\n

Th\u1ebf n\u00e0o l\u00e0 ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n t\u1ed5ng qu\u00e1t (wildcard DNS) v\u00e0 c\u00e1ch thi\u1ebft l\u1eadp?<\/h3>\n\n\n\n

\u201cT\u00ean mi\u1ec1n ph\u00e2n gi\u1ea3i chung\u201d (Domain name wildcard resolution) l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t b\u1ea3n ghi DNS (th\u01b0\u1eddng l\u00e0 b\u1ea3n ghi A ho\u1eb7c CNAME) \u0111\u1ec3 \u00e1p d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n con c\u00f3 b\u1ea5t k\u1ef3 ti\u1ec1n t\u1ed1 n\u00e0o. C\u00e1ch th\u1ef1c hi\u1ec7n l\u00e0 truy c\u1eadp trang th\u00eam b\u1ea3n ghi DNS trong h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n, sau \u0111\u00f3 nh\u1eadp d\u1ea5u sao (*) v\u00e0o tr\u01b0\u1eddng \u201cT\u00ean m\u00e1y ch\u1ee7\u201d (Host). *<\/code>V\u00ed d\u1ee5, c\u00e1ch thi\u1ebft l\u1eadp\u2026 *.example.com<\/code> N\u1ebfu m\u1ed9t \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, th\u00ec d\u00f9 trong tr\u01b0\u1eddng h\u1ee3p n\u00e0o \u0111i n\u1eefa\u2026 a.example.com<\/code>\u3001shop.example.com<\/code> B\u1ea5t k\u1ef3 t\u00ean mi\u1ec1n ph\u1ee5 kh\u00f4ng t\u1ed3n t\u1ea1i n\u00e0o c\u0169ng s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n gi\u1ea3i v\u1ec1 \u0111\u1ecba ch\u1ec9 IP \u0111\u00f3. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ea7n t\u1ea1o \u0111\u1ed9ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn t\u00ean mi\u1ec1n ph\u1ee5, nh\u01b0ng c\u1ea7n l\u01b0u \u00fd \u0111\u1ebfn r\u1ee7i ro b\u1ea3o m\u1eadt.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chuy\u1ec3n t\u00ean mi\u1ec1n t\u1eeb m\u1ed9t nh\u00e0 \u0111\u0103ng k\u00fd sang nh\u00e0 \u0111\u0103ng k\u00fd kh\u00e1c?<\/h3>\n\n\n\n

Quy tr\u00ecnh ch\u00ednh \u0111\u1ec3 chuy\u1ec3n t\u00ean mi\u1ec1n nh\u01b0 sau: \u0110\u1ea7u ti\u00ean, \u0111\u1ea3m b\u1ea3o t\u00ean mi\u1ec1n \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd c\u0169 h\u01a1n 60 ng\u00e0y v\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb l\u1ea7n chuy\u1ec3n g\u1ea7n nh\u1ea5t c\u0169ng \u0111\u00e3 h\u01a1n 60 ng\u00e0y. Th\u1ee9 hai, h\u1ee7y tr\u1ea1ng th\u00e1i \u201ckh\u00f3a chuy\u1ec3n nh\u00e0 \u0111\u0103ng k\u00fd\u201d c\u1ee7a t\u00ean mi\u1ec1n. Sau \u0111\u00f3, l\u1ea5y \u201cm\u00e3 \u1ee7y quy\u1ec1n chuy\u1ec3n\u201d c\u1ee7a t\u00ean mi\u1ec1n. Ti\u1ebfp theo, n\u1ed9p \u0111\u01a1n y\u00eau c\u1ea7u chuy\u1ec3n \u0111\u1ebfn t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd m\u1edbi v\u00e0 thanh to\u00e1n ph\u00ed chuy\u1ec3n (th\u01b0\u1eddng bao g\u1ed3m ph\u00ed gia h\u1ea1n m\u1ed9t n\u0103m). Cu\u1ed1i c\u00f9ng, x\u00e1c nh\u1eadn email x\u00e1c nh\u1eadn chuy\u1ec3n nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb h\u1ed9p th\u01b0 c\u1ee7a nh\u00e0 \u0111\u0103ng k\u00fd c\u0169. To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh m\u1ea5t kho\u1ea3ng 5 \u0111\u1ebfn 7 ng\u00e0y \u0111\u1ec3 ho\u00e0n t\u1ea5t, trong th\u1eddi gian \u0111\u00f3 vi\u1ec7c ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n th\u01b0\u1eddng kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>","protected":false},"excerpt":{"rendered":"

B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb vi\u1ec7c \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n \u0111\u1ebfn vi\u1ec7c c\u1ea5u h\u00ecnh n\u00f3, bao g\u1ed3m c\u00e1c b\u01b0\u1edbc nh\u01b0 l\u1ef1a ch\u1ecdn t\u00ean mi\u1ec1n, so s\u00e1nh c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd, b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0, thao t\u00e1c tr\u00ean giao di\u1ec7n qu\u1ea3n tr\u1ecb, thi\u1ebft l\u1eadp b\u1ea3n ghi DNS v\u00e0 nguy\u00ean l\u00fd gi\u1ea3i quy\u1ebft t\u00ean mi\u1ec1n. \u0110\u1ed3ng th\u1eddi, b\u00e0i vi\u1ebft c\u0169ng nh\u1ea5n m\u1ea1nh c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 an ninh t\u00ean mi\u1ec1n, nh\u1eb1m gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc x\u00e2y d\u1ef1ng v\u00e0 duy tr\u00ec m\u1ed9t<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"knowledge_category":[279],"class_list":["post-12370133","knowledge_post","type-knowledge_post","status-publish","hentry","knowledge_category-domain"],"acf":{"site_seo_keywords":"\u57df\u540d\u6ce8\u518c\uff0c\u57df\u540d\u7ba1\u7406\uff0cDNS\u914d\u7f6e\uff0c\u57df\u540d\u5b89\u5168\uff0c\u57df\u540d\u9690\u79c1\u4fdd\u62a4\uff0c\u57df\u540d\u89e3\u6790\u539f\u7406\uff0c\u57df\u540d\u8bbe\u7f6e\u6307\u5357\uff0c\u57df\u540d\u7ef4\u62a4\u6700\u4f73\u5b9e\u8df5"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12370133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts"}],"about":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/types\/knowledge_post"}],"author":[{"embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":0,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12370133\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12370133"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12370133"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12370133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}