{"id":12375915,"date":"2026-03-18T11:02:55","date_gmt":"2026-03-18T03:02:55","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e4%bb%8e%e6%b3%a8%e5%86%8c%e5%88%b0%e8%a7%a3%e6%9e%90%ef%bc%9a%e5%9f%9f%e5%90%8d%e4%b8%8e%e7%bd%91%e7%ab%99%e5%bb%ba%e8%ae%be%e7%9a%84%e5%ae%8c%e5%85%a8%e6%8a%80%e6%9c%af%e6%8c%87%e5%8d%97\/"},"modified":"2026-03-18T11:21:34","modified_gmt":"2026-03-18T03:21:34","slug":"domain-website-construction-complete-technical-guide","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/domain\/domain-website-construction-complete-technical-guide\/","title":{"rendered":"T\u1eeb \u0111\u0103ng k\u00fd \u0111\u1ebfn qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch: H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt to\u00e0n di\u1ec7n v\u1ec1 t\u00ean mi\u1ec1n v\u00e0 x\u00e2y d\u1ef1ng trang web"},"content":{"rendered":"

Trong th\u1ebf gi\u1edbi internet, t\u00ean mi\u1ec1n (domain name) ch\u00ednh l\u00e0 \u0111\u1ecba ch\u1ec9 s\u1ed1 v\u00e0 d\u1ea5u hi\u1ec7u nh\u1eadn di\u1ec7n ch\u00ednh c\u1ee7a trang web c\u1ee7a b\u1ea1n. N\u00f3 kh\u00f4ng ch\u1ec9 l\u00e0 l\u1ed1i v\u00e0o cho ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp trang web c\u1ee7a b\u1ea1n m\u00e0 c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng cho h\u00ecnh \u1ea3nh th\u01b0\u01a1ng hi\u1ec7u tr\u1ef1c tuy\u1ebfn. T\u1eeb khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1ed9t chu\u1ed7i k\u00fd t\u1ef1 \u0111\u01a1n gi\u1ea3n cho \u0111\u1ebfn khi tr\u00ecnh duy\u1ec7t t\u1ea3i trang web c\u1ee7a b\u1ea1n th\u00e0nh c\u00f4ng, c\u00f3 r\u1ea5t nhi\u1ec1u quy tr\u00ecnh k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p \u0111\u1eb1ng sau, bao g\u1ed3m vi\u1ec7c \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, gi\u1ea3i m\u00e3 DNS (Domain Name System), v\u00e0 k\u1ebft n\u1ed1i cu\u1ed1i c\u00f9ng v\u1edbi m\u00e1y ch\u1ee7 web. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd gi\u00fap b\u1ea1n ph\u00e2n t\u00edch m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng to\u00e0n b\u1ed9 c\u00e1c kh\u00e2u k\u1ef9 thu\u1eadt t\u1eeb vi\u1ec7c c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t t\u00ean mi\u1ec1n cho \u0111\u1ebfn l\u00fac n\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn ch\u00ednh x\u00e1c \u0111\u1ebfn trang web c\u1ee7a b\u1ea1n, t\u1eeb \u0111\u00f3 gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 v\u00e0 n\u1eafm v\u1eefng to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n\n\n\n

\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n: Nh\u1eadn \u0111\u01b0\u1ee3c t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a b\u1ea1n<\/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 s\u1edf h\u1eefu m\u1ed9t trang web. V\u1ec1 c\u01a1 b\u1ea3n, b\u1ea1n \u0111ang \u201cthu\u00ea\u201d quy\u1ec1n s\u1eed d\u1ee5ng m\u1ed9t t\u00ean c\u1ee5 th\u1ec3 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh t\u1eeb nh\u00e0 \u0111\u0103ng k\u00fd \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n to\u00e0n c\u1ea7u c\u00f4ng nh\u1eadn.<\/p>\n\n\n\n

Ph\u00e2n t\u00edch c\u1ea5u tr\u00fac t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

M\u1ed9t t\u00ean mi\u1ec1n ho\u00e0n ch\u1ec9nh th\u01b0\u1eddng bao g\u1ed3m nhi\u1ec1u ph\u1ea7n. L\u1ea5y v\u00ed d\u1ee5 \u201cwww.example.com\u201d: \u201c.com\u201d l\u00e0 t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t, th\u01b0\u1eddng \u0111\u1ea1i di\u1ec7n cho c\u00e1c t\u1ed5 ch\u1ee9c th\u01b0\u01a1ng m\u1ea1i ho\u1eb7c c\u00e1c lo\u1ea1i h\u00ecnh d\u1ecbch v\u1ee5 chung; \u201cexample\u201d l\u00e0 t\u00ean mi\u1ec1n c\u1ea5p hai \u2013 ph\u1ea7n m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ecbnh ngh\u0129a, v\u00e0 c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u; c\u00f2n \u201cwww\u201d th\u01b0\u1eddng l\u00e0 t\u00ean m\u00e1y ch\u1ee7 ho\u1eb7c t\u00ean mi\u1ec1n con, d\u00f9ng \u0111\u1ec3 ch\u1ec9 m\u1ed9t d\u1ecbch v\u1ee5 c\u1ee5 th\u1ec3. Khi ch\u00fang ta n\u00f3i v\u1ec1 \u201c\u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n\u201d, ch\u00fang ta th\u01b0\u1eddng \u0111ang \u00e1m ch\u1ec9 \u0111\u1ebfn t\u1ed5 h\u1ee3p \u201cexample.com\u201d n\u00e0y.<\/p>\n\n\n\n

Ch\u1ecdn nh\u00e0 \u0111\u0103ng k\u00fd v\u00e0 quy tr\u00ecnh \u0111\u0103ng k\u00fd<\/h3>\n\n\n\n

C\u00e1c nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n l\u00e0 nh\u1eefng t\u1ed5 ch\u1ee9c th\u01b0\u01a1ng m\u1ea1i \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn b\u1edfi ICANN, c\u00f3 tr\u00e1ch nhi\u1ec7m ti\u1ebfp nh\u1eadn c\u00e1c y\u00eau c\u1ea7u \u0111\u0103ng k\u00fd t\u1eeb ng\u01b0\u1eddi d\u00f9ng. Khi l\u1ef1a ch\u1ecdn nh\u00e0 \u0111\u0103ng k\u00fd, b\u1ea1n n\u00ean xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 uy t\u00edn c\u1ee7a h\u1ecd, m\u1ee9c gi\u00e1, \u0111\u1ed9 d\u1ec5 s\u1eed d\u1ee5ng c\u1ee7a giao di\u1ec7n qu\u1ea3n tr\u1ecb, ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng, v\u00e0 vi\u1ec7c h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 DNSSEC. Quy tr\u00ecnh \u0111\u0103ng k\u00fd th\u01b0\u1eddng bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau: ki\u1ec3m tra xem t\u00ean mi\u1ec1n c\u00f3 s\u1eb5n hay kh\u00f4ng, ch\u1ecdn th\u1eddi h\u1ea1n \u0111\u0103ng k\u00fd (th\u01b0\u1eddng t\u1eeb 1 \u0111\u1ebfn 10 n\u0103m), \u0111i\u1ec1n th\u00f4ng tin ng\u01b0\u1eddi \u0111\u0103ng k\u00fd, v\u00e0 ho\u00e0n t\u1ea5t vi\u1ec7c thanh to\u00e1n.<\/p>\n\n\n\n

Th\u00f4ng tin t\u00ean mi\u1ec1n v\u00e0 WHOIS<\/h3>\n\n\n\n

Khi \u0111\u0103ng k\u00fd, b\u1ea1n c\u1ea7n cung c\u1ea5p th\u00f4ng tin li\u00ean h\u1ec7 th\u1ef1c t\u1ebf v\u00e0 ch\u00ednh x\u00e1c c\u1ee7a ng\u01b0\u1eddi \u0111\u0103ng k\u00fd, ng\u01b0\u1eddi qu\u1ea3n l\u00fd, nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt v\u00e0 ng\u01b0\u1eddi li\u00ean h\u1ec7 v\u1ec1 h\u00f3a \u0111\u01a1n. Nh\u1eefng th\u00f4ng tin n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u01a1 s\u1edf d\u1eef li\u1ec7u WHOIS. Theo c\u00e1c quy \u0111\u1ecbnh b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0, nhi\u1ec1u nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd (registrar) cung c\u1ea5p d\u1ecbch v\u1ee5 b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0, s\u1eed d\u1ee5ng th\u00f4ng tin c\u1ee7a ch\u00ednh h\u1ecd thay v\u00ec th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n \u0111\u1ec3 hi\u1ec3n th\u1ecb tr\u00ean c\u00e1c b\u00e1o c\u00e1o WHOIS, nh\u1eb1m ng\u0103n ch\u1eb7n th\u01b0 r\u00e1c v\u00e0 vi\u1ec7c x\u00e2m ph\u1ea1m danh t\u00ednh.<\/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

DNS Gi\u1ea3i m\u00e3: Ng\u01b0\u1eddi d\u1ecbch t\u00ean mi\u1ec1n<\/h2>\n\n\n\n

H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (Domain Name System \u2013 DNS) ch\u00ednh l\u00e0 \u201cs\u1ed5 \u0111i\u1ec7n tho\u1ea1i\u201d c\u1ee7a Internet, c\u00f3 nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00ean mi\u1ec1n d\u1ec5 \u0111\u1ecdc b\u1edfi con ng\u01b0\u1eddi th\u00e0nh \u0111\u1ecba ch\u1ec9 IP d\u1ec5 \u0111\u1ecdc b\u1edfi m\u00e1y t\u00ednh. Khi b\u1ea1n nh\u1eadp m\u1ed9t t\u00ean mi\u1ec1n v\u00e0o tr\u00ecnh duy\u1ec7t, qu\u00e1 tr\u00ecnh gi\u1ea3i m\u00e3 DNS (DNS resolution) s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng.<\/p>\n\n\n\n

Gi\u1ea3i th\u00edch chi ti\u1ebft qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i<\/h3>\n\n\n\n

Qu\u00e1 tr\u00ecnh gi\u1ea3i m\u00e3 l\u00e0 m\u1ed9t chu\u1ed7i truy v\u1ea5n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo t\u1eebng t\u1ea7ng. \u0110\u1ea7u ti\u00ean, m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n s\u1ebd ki\u1ec3m tra b\u1ed9 nh\u1edb \u0111\u1ec7m DNS (Domain Name System) c\u1ee5c b\u1ed9. N\u1ebfu kh\u00f4ng t\u00ecm th\u1ea5y th\u00f4ng tin n\u00e0o, y\u00eau c\u1ea7u s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet ho\u1eb7c m\u00e1y ch\u1ee7 DNS c\u00f4ng c\u1ed9ng m\u00e0 b\u1ea1n \u0111\u00e3 c\u1ea5u h\u00ecnh. M\u00e1y ch\u1ee7 n\u00e0y s\u1ebd b\u1eaft \u0111\u1ea7u truy v\u1ea5n t\u1eeb m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n g\u1ed1c (root domain server); m\u00e1y ch\u1ee7 g\u1ed1c s\u1ebd h\u01b0\u1edbng d\u1eabn n\u00f3 \u0111\u1ebfn m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n c\u1ea5p cao (top-level domain server) t\u01b0\u01a1ng \u1ee9ng, v\u00e0 m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n c\u1ea5p cao s\u1ebd ti\u1ebfp t\u1ee5c h\u01b0\u1edbng d\u1eabn n\u00f3 \u0111\u1ebfn m\u00e1y ch\u1ee7 quy\u1ec1n l\u1ef1c (authority domain server) c\u1ee7a t\u00ean mi\u1ec1n \u0111\u00f3. Cu\u1ed1i c\u00f9ng, m\u00e1y ch\u1ee7 quy\u1ec1n l\u1ef1c s\u1ebd tr\u1ea3 v\u1ec1 \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00ean mi\u1ec1n \u0111\u00f3.<\/p>\n\n\n\n

Lo\u1ea1i h\u00ecnh ghi ch\u00e9p v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang<\/h3>\n\n\n\n

C\u00e1c m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n (Domain Name Servers \u2013 DNS) c\u00f3 uy t\u00edn l\u01b0u tr\u1eef nhi\u1ec1u lo\u1ea1i b\u1ea3n ghi DNS kh\u00e1c nhau, m\u1ed7i lo\u1ea1i \u0111\u1ec1u c\u00f3 ch\u1ee9c n\u0103ng ri\u00eang bi\u1ec7t:
\n* B\u1ea3n ghi A: Ch\u1ec9 \u0111\u1ecbnh t\u00ean mi\u1ec1n \u0111\u1ebfn m\u1ed9t \u0111\u1ecba ch\u1ec9 IPv4.
\n* B\u1ea3n ghi AAAA: Ch\u1ec9 \u0111\u1ecbnh t\u00ean mi\u1ec1n \u0111\u1ebfn m\u1ed9t \u0111\u1ecba ch\u1ec9 IPv6.
\n* B\u1ea3n ghi CNAME: Ch\u1ec9 \u0111\u1ecbnh t\u00ean mi\u1ec1n \u0111\u1ebfn m\u1ed9t t\u00ean mi\u1ec1n kh\u00e1c, th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng b\u00ed danh.
\n* B\u1ea3n ghi MX: X\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 th\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m nh\u1eadn th\u01b0 cho t\u00ean mi\u1ec1n \u0111\u00f3.
\n* B\u1ea3n ghi TXT: Th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 l\u01b0u tr\u1eef th\u00f4ng tin x\u00e1c th\u1ef1c email nh\u01b0 SPF, DKIM ho\u1eb7c th\u00f4ng tin x\u00e1c minh quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n.
\n* B\u1ea3n ghi NS: Ch\u1ec9 \u0111\u1ecbnh m\u00e1y ch\u1ee7 DNS c\u00f3 th\u1ea9m quy\u1ec1n n\u00e0o s\u1ebd ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n n\u00e0y.<\/p>\n\n\n\n

Th\u1eddi \u0111i\u1ec3m c\u00f3 hi\u1ec7u l\u1ef1c v\u00e0 TTL (Time To Live)<\/h3>\n\n\n\n

Khi b\u1ea1n thay \u0111\u1ed5i c\u00e1c b\u1ea3n ghi DNS, c\u00e1c m\u00e1y ch\u1ee7 DNS tr\u00ean to\u00e0n th\u1ebf gi\u1edbi s\u1ebd kh\u00f4ng c\u1eadp nh\u1eadt ngay l\u1eadp t\u1ee9c. M\u1ed7i b\u1ea3n ghi \u0111\u1ec1u c\u00f3 m\u1ed9t gi\u00e1 tr\u1ecb TTL (Time To Live), which x\u00e1c \u0111\u1ecbnh th\u1eddi gian m\u00e0 c\u00e1c m\u00e1y ch\u1ee7 DNS kh\u00e1c c\u00f3 th\u1ec3 l\u01b0u tr\u1eef b\u1ea3n ghi \u0111\u00f3 trong b\u1ed9 nh\u1edb \u0111\u1ec7m. N\u1ebfu gi\u00e1 tr\u1ecb TTL \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u1ea5p (v\u00ed d\u1ee5: 300 gi\u00e2y), thay \u0111\u1ed5i s\u1ebd \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nhanh h\u01a1n, nh\u01b0ng s\u1ebd l\u00e0m t\u0103ng t\u1ea3i l\u01b0\u1ee3ng truy v\u1ea5n; ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu gi\u00e1 tr\u1ecb TTL \u0111\u01b0\u1ee3c \u0111\u1eb7t cao (v\u00ed d\u1ee5: 86400 gi\u00e2y), t\u1ea3i l\u01b0\u1ee3ng truy v\u1ea5n s\u1ebd gi\u1ea3m, nh\u01b0ng thay \u0111\u1ed5i s\u1ebd \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ch\u1eadm h\u01a1n.<\/p>\n\n\n\n

M\u1ed1i k\u1ebft n\u1ed1i gi\u1eefa t\u00ean mi\u1ec1n (domain name) v\u00e0 m\u00e1y ch\u1ee7 trang web (website server)<\/h2>\n\n\n\n

Sau khi nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ecba ch\u1ec9 IP, tr\u00ecnh duy\u1ec7t c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef c\u00e1c t\u1ec7p tin c\u1ee7a trang web c\u1ee7a b\u1ea1n, v\u00e0 \u0111\u00e2y ch\u00ednh l\u00e0 b\u01b0\u1edbc cu\u1ed1i c\u00f9ng trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u00ean mi\u1ec1n.<\/p>\n\n\n\n

M\u00e1y ch\u1ee7 web \u1ea3o v\u00e0 m\u00e1y ch\u1ee7 ri\u00eang<\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c trang web, t\u00ean mi\u1ec1n (domain name) tr\u1ecf \u0111\u1ebfn m\u1ed9t th\u01b0 m\u1ee5c tr\u00ean m\u00e1y ch\u1ee7 \u1ea3o (virtual host) \u0111\u01b0\u1ee3c chia s\u1ebb. Ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 s\u1ebd \u0111\u1ecbnh tuy\u1ebfn y\u00eau c\u1ea7u truy c\u1eadp \u0111\u1ebfn th\u01b0 m\u1ee5c t\u01b0\u01a1ng \u1ee9ng c\u1ee7a trang web \u0111\u00f3 d\u1ef1a tr\u00ean t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c cung c\u1ea5p. \u0110\u1ed1i v\u1edbi nh\u1eefng trang web l\u1edbn ho\u1eb7c y\u00eau c\u1ea7u nhi\u1ec1u t\u00e0i nguy\u00ean, t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 tr\u1ef1c ti\u1ebfp tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP ri\u00eang bi\u1ec7t c\u1ee7a m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd ho\u1eb7c m\u00e1y ch\u1ee7 \u0111\u00e1m m\u00e2y (cloud server).<\/p>\n\n\n\n

C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web<\/h3>\n\n\n\n

\u1ede ph\u00eda m\u00e1y ch\u1ee7, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c thi\u1ebft l\u1eadp trong ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web. L\u1ea5y Nginx \u2013 m\u1ed9t c\u00f4ng c\u1ee5 ph\u1ed5 bi\u1ebfn \u2013 l\u00e0m v\u00ed d\u1ee5, b\u1ea1n c\u1ea7n c\u1ea5u h\u00ecnh m\u1ed9t \u201cblock server\u201d (kh\u1ed1i c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7), trong \u0111\u00f3 ch\u1ec9 \u0111\u1ecbnh c\u1ed5ng m\u00e0 m\u00e1y ch\u1ee7 s\u1ebd l\u1eafng nghe c\u00e1c y\u00eau c\u1ea7u v\u00e0 t\u00ean mi\u1ec1n m\u00e0 t\u1ec7p c\u1ea5u h\u00ecnh \u0111\u00f3 s\u1ebd ph\u1ee5 tr\u00e1ch x\u1eed l\u00fd. Khi c\u00f3 y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e1y ch\u1ee7, Nginx s\u1ebd ki\u1ec3m tra tr\u01b0\u1eddng \u201cHost\u201d trong ti\u00eau \u0111\u1ec1 y\u00eau c\u1ea7u v\u00e0 so s\u00e1nh n\u00f3 v\u1edbi c\u00e1c t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong c\u1ea5u h\u00ecnh, t\u1eeb \u0111\u00f3 \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ebfn trang web t\u01b0\u01a1ng \u1ee9ng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

HTTPS v\u00e0 Ch\u1ee9ng ch\u1ec9 SSL<\/h3>\n\n\n\n

C\u00e1c trang web hi\u1ec7n \u0111\u1ea1i b\u1eaft bu\u1ed9c ph\u1ea3i s\u1eed d\u1ee5ng giao th\u1ee9c HTTPS. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL\/TLS tr\u00ean m\u00e1y ch\u1ee7. Ch\u1ee9ng ch\u1ec9 kh\u00f4ng ch\u1ec9 c\u00f3 ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i m\u00e0 c\u00f2n ch\u1ee9a th\u00f4ng tin v\u1ec1 quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n. C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 s\u1ebd x\u00e1c minh quy\u1ec1n ki\u1ec3m so\u00e1t c\u1ee7a b\u1ea1n \u0111\u1ed1i v\u1edbi t\u00ean mi\u1ec1n, th\u01b0\u1eddng th\u00f4ng qua vi\u1ec7c th\u00eam c\u00e1c b\u1ea3n ghi TXT \u0111\u1eb7c bi\u1ec7t ho\u1eb7c t\u1ea3i l\u00ean c\u00e1c t\u1ec7p x\u00e1c th\u1ef1c. Sau khi c\u1ea5u h\u00ecnh ho\u00e0n t\u1ea5t, khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp \u0111\u1ecba ch\u1ec9 \u201chttps:\/\/yourdomain.com\u201d, qu\u00e1 tr\u00ecnh k\u1ebft n\u1ed1i (SSL handshake) s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc, sau \u0111\u00f3 d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i m\u1ed9t c\u00e1ch an to\u00e0n.<\/p>\n\n\n

\n\n
\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

C\u1ea5u h\u00ecnh n\u00e2ng cao v\u00e0 th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/h2>\n\n\n\n

Sau khi n\u1eafm v\u1eefng nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n, m\u1ed9t s\u1ed1 c\u1ea5u h\u00ecnh n\u00e2ng cao c\u00f3 th\u1ec3 gi\u00fap n\u00e2ng th\u00eam \u0111\u1ed9 tin c\u1eady, hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt c\u1ee7a trang web.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng CDN (Content Delivery Network) \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/h3>\n\n\n\n

M\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (Content Delivery Network \u2013 CDN) l\u01b0u tr\u1eef c\u00e1c t\u00e0i nguy\u00ean t\u0129nh c\u1ee7a trang web b\u1ea1n v\u00e0o c\u00e1c m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, gi\u00fap gi\u1ea3m th\u1eddi gian truy c\u1eadp v\u00e0 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng b\u1eb1ng c\u00e1ch \u0111\u01b0a nh\u1eefng t\u00e0i nguy\u00ean n\u00e0y g\u1ea7n h\u01a1n v\u1edbi h\u1ecd. \u0110\u1ec3 s\u1eed d\u1ee5ng CDN, b\u1ea1n th\u01b0\u1eddng c\u1ea7n thay \u0111\u1ed5i th\u00f4ng tin DNS c\u1ee7a t\u00ean mi\u1ec1n c\u1ee7a m\u00ecnh \u0111\u1ec3 tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 CNAME do nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 CDN cung c\u1ea5p. Nh\u00e0 cung c\u1ea5p CDN s\u1ebd ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng, \u0111\u1ecbnh tuy\u1ebfn ch\u00fang v\u1ec1 m\u00e1y ch\u1ee7 th\u1ef1c t\u1ebf c\u1ee7a b\u1ea1n, v\u00e0 t\u1eeb \u0111\u00f3<\/p>\n\n\n\n

C\u00e0i \u0111\u1eb7t d\u1ecbch v\u1ee5 ph\u00e2n t\u00e1ch c\u00e1c t\u00ean mi\u1ec1n con<\/h3>\n\n\n\n

Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c t\u00ean mi\u1ec1n con m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n t\u1ed5 ch\u1ee9c c\u00e1c m\u00f4-\u0111un ch\u1ee9c n\u0103ng kh\u00e1c nhau tr\u00ean trang web c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u201cblog.example.com\u201d \u0111\u1ec3 l\u01b0u tr\u1eef h\u1ec7 th\u1ed1ng blog, \u201capi.example.com\u201d \u0111\u1ec3 cung c\u1ea5p c\u00e1c giao di\u1ec7n \u1ee9ng d\u1ee5ng (API), v\u00e0 \u201cshop.example.com\u201d \u0111\u1ec3 v\u1eadn h\u00e0nh c\u1eeda h\u00e0ng tr\u1ef1c tuy\u1ebfn. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp c\u00e1c b\u1ea3n ghi A ho\u1eb7c CNAME ri\u00eang bi\u1ec7t cho m\u1ed7i t\u00ean mi\u1ec1n con trong h\u1ec7 th\u1ed1ng DNS, t\u1eeb \u0111\u00f3 gi\u00fap ph\u00e2n t\u00e1ch c\u00e1c ch\u1ee9c n\u0103ng m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng v\u00e0 qu\u1ea3n l\u00fd ch\u00fang m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp.<\/p>\n\n\n\n

DNSSEC (Domain Name System Security Extensions) gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ea3o m\u1eadt cho c\u00e1c t\u00ean mi\u1ec1n tr\u00ean m\u1ea1ng Internet.<\/h3>\n\n\n\n

B\u1ea3n th\u00e2n giao th\u1ee9c DNS c\u00f3 nh\u1eefng l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt, khi\u1ebfn n\u00f3 d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng nh\u01b0 vi\u1ec7c \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m (cache poisoning). DNSSEC gi\u00fap x\u00e1c th\u1ef1c ngu\u1ed3n g\u1ed1c d\u1eef li\u1ec7u v\u00e0 ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u DNS b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c ch\u1eef k\u00fd s\u1ed1 v\u00e0o d\u1eef li\u1ec7u DNS. \u0110\u1ec3 k\u00edch ho\u1ea1t DNSSEC, b\u1ea1n c\u1ea7n b\u1eadt t\u00ednh n\u0103ng n\u00e0y t\u1ea1i nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, \u0111\u1ed3ng th\u1eddi c\u1ea5u h\u00ecnh c\u00e1c b\u1ea3n ghi kh\u00f3a t\u01b0\u01a1ng \u1ee9ng t\u1ea1i nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 DNS ch\u00ednh th\u1ee9c c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

Chi\u1ebfn l\u01b0\u1ee3c qu\u1ea3n l\u00fd v\u00e0 gia h\u1ea1n t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u0111\u1ecba ch\u1ec9 email b\u1ea1n \u0111\u0103ng k\u00fd lu\u00f4n an to\u00e0n; \u0111\u00e2y l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 l\u1ea5y l\u1ea1i m\u1eadt kh\u1ea9u v\u00e0 nh\u1eadn th\u00f4ng b\u00e1o gia h\u1ea1n. Ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean b\u1eadt ch\u1ee9c n\u0103ng t\u1ef1 \u0111\u1ed9ng gia h\u1ea1n t\u00ean mi\u1ec1n v\u00e0 duy tr\u00ec s\u1ed1 d\u01b0 t\u00e0i kho\u1ea3n \u1edf m\u1ee9c \u0111\u1ee7 \u0111\u1ec3 tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p t\u00ean mi\u1ec1n h\u1ebft h\u1ea1n do s\u01a1 su\u1ea5t v\u00e0 b\u1ecb ng\u01b0\u1eddi kh\u00e1c \u0111\u0103ng k\u00fd tr\u01b0\u1edbc. \u0110\u1ed3ng th\u1eddi, h\u00e3y th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra v\u00e0 c\u1eadp nh\u1eadt th\u00f4ng tin li\u00ean h\u1ec7 c\u1ee7a t\u00ean mi\u1ec1n c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

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

T\u1eeb vi\u1ec7c \u0111\u0103ng k\u00fd m\u1ed9t t\u00ean mi\u1ec1n m\u00e0 b\u1ea1n y\u00eau th\u00edch cho \u0111\u1ebfn khi ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp trang web c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch thu\u1eadn l\u1ee3i, \u0111\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p v\u00e0 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1edbi nhau. Qu\u00e1 tr\u00ecnh n\u00e0y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 mua t\u00ean mi\u1ec1n t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd; y\u1ebfu t\u1ed1 then ch\u1ed1t n\u1eb1m \u1edf h\u1ec7 th\u1ed1ng DNS \u2013 h\u1ec7 th\u1ed1ng chuy\u1ec3n \u0111\u1ed5i t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c \u2013 v\u00e0 cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c ho\u00e0n t\u1ea5t nh\u1edd c\u00e1ch c\u1ea5u h\u00ecnh \u0111\u00fang \u0111\u1eafn c\u1ee7a m\u00e1y ch\u1ee7 web. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac t\u00ean mi\u1ec1n, c\u00e1c lo\u1ea1i b\u1ea3n ghi DNS, quy tr\u00ecnh gi\u1ea3i quy\u1ebft (resolution process), c\u0169ng nh\u01b0 c\u00e1ch c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 l\u00e0 nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n m\u00e0 m\u1ecdi ng\u01b0\u1eddi x\u00e2y d\u1ef1ng v\u00e0 qu\u1ea3n tr\u1ecb trang web \u0111\u1ec1u c\u1ea7n n\u1eafm v\u1eefng. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t nh\u01b0 s\u1eed d\u1ee5ng CDN (Content Delivery Network), c\u1ea5u h\u00ecnh subdomain (t\u00ean mi\u1ec1n con), k\u00edch ho\u1ea1t DNSSEC (Domain Name System Security Extensions), b\u1ea1n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn nhanh h\u01a1n, an to\u00e0n h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n, gi\u00fap t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a m\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 tr\u00ean internet.<\/p>\n\n

\r\n\t\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\"\u0110\u0103ng\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\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
\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t \r\n\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

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

T\u1ea1i sao sau khi \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, t\u00f4i 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 c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n \u0111\u00e3 c\u00f3 quy\u1ec1n s\u1eed d\u1ee5ng t\u00ean \u0111\u00f3. \u0110\u1ec3 t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c v\u00e0o trang web c\u1ee7a b\u1ea1n, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n hai b\u01b0\u1edbc quan tr\u1ecdng: \u0110\u1ea7u ti\u00ean, t\u1ea1i nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 DNS b\u00ean th\u1ee9 ba, h\u00e3y ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 web c\u1ee7a b\u1ea1n v\u00e0o c\u00e1c b\u1ea3n ghi DNS t\u01b0\u01a1ng \u1ee9ng c\u1ee7a t\u00ean mi\u1ec1n. Th\u1ee9 hai, vi\u1ec7c thay \u0111\u1ed5i c\u00e1c b\u1ea3n ghi DNS c\u1ea7n th\u1eddi gian \u0111\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng tr\u00ean to\u00e0n c\u1ea7u; qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201ctruy\u1ec1n b\u00e1 DNS\u201d (DNS propagation), v\u00e0 th\u01b0\u1eddng m\u1ea5t t\u1eeb v\u00e0i ph\u00fat \u0111\u1ebfn v\u00e0i gi\u1edd.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa A-record v\u00e0 CNAME-record l\u00e0 g\u00ec?<\/h3>\n\n\n\n

A-record l\u00e0 lo\u1ea1i b\u1ea3n ghi m\u00e0 theo \u0111\u00f3 m\u1ed9t t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c tr\u1ecf tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u1ed9t \u0111\u1ecba ch\u1ec9 IP, v\u00ed d\u1ee5: \u201cexample.com\u201d \u0111\u01b0\u1ee3c tr\u1ecf \u0111\u1ebfn \u201c192.0.2.1\u201d. Ng\u01b0\u1ee3c l\u1ea1i, CNAME-record l\u00e0 lo\u1ea1i b\u1ea3n ghi m\u00e0 theo \u0111\u00f3 m\u1ed9t t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m t\u00ean hi\u1ec7u c\u1ee7a m\u1ed9t t\u00ean mi\u1ec1n kh\u00e1c; v\u00ed d\u1ee5: \u201cwww.example.com\u201d \u0111\u01b0\u1ee3c tr\u1ecf \u0111\u1ebfn \u201cexample.com\u201d. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh n\u1eb1m \u1edf ch\u1ed7: A-record tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP, l\u00e0 \u0111i\u1ec3m cu\u1ed1i c\u00f9ng trong qu\u00e1 tr\u00ecnh gi\u1ea3i quy\u1ebft y\u00eau c\u1ea7u truy c\u1eadp; trong khi CNAME-record tr\u1ecf \u0111\u1ebfn m\u1ed9t t\u00ean mi\u1ec1n kh\u00e1c, v\u00e0 b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n th\u00eam b\u01b0\u1edbc gi\u1ea3i quy\u1ebft (resolving) \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng. Th\u00f4ng th\u01b0\u1eddng, kh\u00f4ng khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng CNAME-record cho c\u00e1c t\u00ean mi\u1ec1n g\u1ed1c (root domains).<\/p>\n\n\n\n

Th\u1ebf n\u00e0o l\u00e0 chi\u1ebfm \u0111o\u1ea1t t\u00ean mi\u1ec1n v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u00f2ng ng\u1eeba?<\/h3>\n\n\n\n

Chi\u1ebfm quy\u1ec1n t\u00ean mi\u1ec1n l\u00e0 h\u00e0nh vi k\u1ebb t\u1ea5n c\u00f4ng l\u1ea5y quy\u1ec1n qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n b\u1eb1ng th\u1ee7 \u0111o\u1ea1n b\u1ea5t h\u1ee3p ph\u00e1p, t\u1eeb \u0111\u00f3 s\u1eeda \u0111\u1ed5i b\u1ea3n ghi DNS ho\u1eb7c chuy\u1ec3n t\u00ean mi\u1ec1n sang t\u00e0i kho\u1ea3n kh\u00e1c. C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba bao g\u1ed3m: B\u1eadt x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 cho t\u00e0i kho\u1ea3n nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n; S\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh, \u0111\u1ed9c l\u1eadp; \u0110\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ed9p th\u01b0 \u0111\u0103ng k\u00fd; Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 th\u00f4ng tin Whois t\u00ean mi\u1ec1n v\u00e0 b\u1ea3n ghi DNS; V\u00e0 c\u00e2n nh\u1eafc k\u00edch ho\u1ea1t d\u1ecbch v\u1ee5 kh\u00f3a t\u00ean mi\u1ec1n do nh\u00e0 \u0111\u0103ng k\u00fd cung c\u1ea5p.<\/p>\n\n\n\n

Sau khi thay th\u1ebf m\u00e1y ch\u1ee7 c\u1ee7a trang web, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau:<\/h3>\n\n\n\n

Khi b\u1ea1n di chuy\u1ec3n trang web l\u00ean m\u00e1y ch\u1ee7 m\u1edbi, b\u1ea1n c\u1ea7n c\u1eadp nh\u1eadt \u0111\u1ecba ch\u1ec9 t\u00ean mi\u1ec1n (domain name) \u0111\u1ec3 n\u00f3 tr\u1ecf \u0111\u1ebfn m\u00e1y ch\u1ee7 m\u1edbi. C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t l\u00e0 thay \u0111\u1ed5i gi\u00e1 tr\u1ecb c\u1ee7a b\u1ea3n ghi A (A record) trong DNS, thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng t\u1eeb m\u00e1y ch\u1ee7 c\u0169 sang m\u00e1y ch\u1ee7 m\u1edbi. Tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i, b\u1ea1n n\u00ean gi\u1ea3m gi\u00e1 tr\u1ecb TTL (Time To Live) c\u1ee7a b\u1ea3n ghi A \u0111\u1ec3 qu\u00e1 tr\u00ecnh c\u1eadp nh\u1eadt di\u1ec5n ra nhanh h\u01a1n. Sau khi thay \u0111\u1ed5i xong, h\u00e3y ch\u1edd cho \u0111\u1ebfn khi qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u qua DNS ho\u00e0n t\u1ea5t; l\u00fac \u0111\u00f3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp s\u1ebd d\u1ea7n \u0111\u01b0\u1ee3c chuy\u1ec3n sang m\u00e1y ch\u1ee7 m\u1edbi.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn d\u1ecbch v\u1ee5 DNS ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n?<\/h3>\n\n\n\n

D\u1ecbch v\u1ee5 DNS do nh\u00e0 cung c\u1ea5p \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n ( registrar) t\u00edch h\u1ee3p s\u1eb5n th\u01b0\u1eddng \u0111\u1ee7 cho nhu c\u1ea7u c\u1ee7a c\u00e1c blog c\u00e1 nh\u00e2n ho\u1eb7c trang web nh\u1ecf. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 gi\u1ea3i quy\u1ebft y\u00eau c\u1ea7u (response time) cao h\u01a1n, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed1t h\u01a1n v\u00e0 nhi\u1ec1u t\u00ednh n\u0103ng h\u01a1n, h\u1ecd c\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c nh\u00e0 cung c\u1ea5p DNS c\u00f4ng c\u1ed9ng chuy\u00ean nghi\u1ec7p. Nh\u1eefng nh\u00e0 cung c\u1ea5p n\u00e0y th\u01b0\u1eddng c\u00f3 nhi\u1ec1u node tr\u00ean to\u00e0n th\u1ebf gi\u1edbi v\u00e0 cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t, ph\u00f2ng ng\u1eeba s\u1ef1 c\u1ed1 (disaster recovery) v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u chuy\u00ean d\u1ee5ng. Khi l\u1ef1a ch\u1ecdn, b\u1ea1n n\u00ean xem x\u00e9t \u0111\u1ebfn hi\u1ec7u su\u1ea5t d\u1ecbch v\u1ee5, \u0111\u1ed9 tin c\u1eady, c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt, c\u0169ng nh<\/p>","protected":false},"excerpt":{"rendered":"

B\u00e0i vi\u1ebft n\u00e0y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt c\u00f3 h\u1ec7 th\u1ed1ng v\u1ec1 t\u00ean mi\u1ec1n v\u00e0 x\u00e2y d\u1ef1ng trang web. N\u00f3 m\u00f4 t\u1ea3 chi ti\u1ebft to\u00e0n b\u1ed9 quy tr\u00ecnh k\u1ef9 thu\u1eadt, t\u1eeb vi\u1ec7c \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, hi\u1ec3u nguy\u00ean l\u00fd gi\u1ea3i m\u00e3 DNS, cho \u0111\u1ebfn vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn t\u00ean mi\u1ec1n th\u00e0nh c\u00f4ng \u0111\u1ebfn m\u00e1y ch\u1ee7 trang web, \u0111\u1ed3ng th\u1eddi gi\u1ea3i th\u00edch c\u00e1c c\u1ea5u h\u00ecnh li\u00ean quan v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"knowledge_category":[279],"class_list":["post-12375915","knowledge_post","type-knowledge_post","status-publish","hentry","knowledge_category-domain"],"acf":{"site_seo_keywords":"\u57df\u540d\u6ce8\u518c,DNS\u89e3\u6790,\u7f51\u7ad9\u5efa\u8bbe,\u57df\u540d\u89e3\u6790\u6d41\u7a0b,\u865a\u62df\u4e3b\u673a\u914d\u7f6e,SSL\u8bc1\u4e66,CDN\u52a0\u901f,\u57df\u540d\u4e0e\u670d\u52a1\u5668\u8fde\u63a5"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12375915","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\/12375915\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12375915"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12375915"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12375915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}