{"id":12378331,"date":"2026-03-19T19:48:23","date_gmt":"2026-03-19T11:48:23","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e4%bb%80%e4%b9%88%e6%98%af-ssl-%e8%af%81%e4%b9%a6\/"},"modified":"2026-03-19T20:02:12","modified_gmt":"2026-03-19T12:02:12","slug":"what-is-ssl-certificate-2026","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/what-is-ssl-certificate-2026\/","title":{"rendered":"Ch\u1ee9ng ch\u1ec9 SSL l\u00e0 g\u00ec"},"content":{"rendered":"

Ch\u1ee9ng ch\u1ec9 SSL l\u00e0 g\u00ec<\/h2>\n\n\n\n

SSL (Secure Sockets Layer) ch\u1ee9ng ch\u1ec9, hi\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng TLS (Transport Layer Security) ch\u1ee9ng ch\u1ec9, nh\u01b0ng ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i v\u1eabn gi\u1eef nguy\u00ean. \u0110\u00e2y l\u00e0 m\u1ed9t t\u1ec7p tin k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u00ean m\u00e1y ch\u1ee7 Web, d\u00f9ng \u0111\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t k\u00eanh k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 an to\u00e0n gi\u1eefa tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7. C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SSL d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 m\u00e3 h\u00f3a b\u1eb1ng kh\u00f3a c\u00f4ng khai v\u00e0 gi\u1ea3i m\u00e3 b\u1eb1ng kh\u00f3a ri\u00eang t\u01b0.<\/p>\n\n\n\n

Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp m\u1ed9t trang web \u0111\u00e3 b\u1eadt ch\u1ee9c n\u0103ng HTTPS, ch\u1ee9ng ch\u1ec9 SSL s\u1ebd kh\u1edfi \u0111\u1ed9ng m\u1ed9t qu\u00e1 tr\u00ecnh g\u1ecdi l\u00e0 \u201cqu\u00e1 tr\u00ecnh giao ti\u1ebfp\u201d (handshake). Trong qu\u00e1 tr\u00ecnh n\u00e0y, m\u00e1y ch\u1ee7 s\u1ebd cung c\u1ea5p ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a m\u00ecnh cho tr\u00ecnh duy\u1ec7t. Tr\u00ecnh duy\u1ec7t sau \u0111\u00f3 s\u1ebd ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a ch\u1ee9ng ch\u1ec9, bao g\u1ed3m vi\u1ec7c x\u00e1c \u0111\u1ecbnh xem n\u00f3 c\u00f3 \u0111\u01b0\u1ee3c c\u1ea5p b\u1edfi m\u1ed9t t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 \u0111\u00e1ng tin c\u1eady hay kh\u00f4ng, li\u1ec7u ch\u1ee9ng ch\u1ec9 c\u00f3 h\u1ebft h\u1ea1n hay kh\u00f4ng, v\u00e0 li\u1ec7u t\u00ean mi\u1ec1n trong ch\u1ee9ng ch\u1ec9 c\u00f3 tr\u00f9ng kh\u1edbp v\u1edbi t\u00ean trang web \u0111ang \u0111\u01b0\u1ee3c truy c\u1eadp hay kh\u00f4ng. Sau khi ki\u1ec3m tra th\u00e0nh c\u00f4ng, tr\u00ecnh duy\u1ec7t v\u00e0 m\u00e1y ch\u1ee7 s\u1ebd th\u1ecfa thu\u1eadn \u0111\u1ec3 t\u1ea1o ra m\u1ed9t b\u1ed9 kh\u00f3a m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng d\u00f9ng cho phi\u00ean truy c\u1eadp hi\u1ec7n t\u1ea1i, nh\u1eb1m \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i sau n\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a m\u1ea1nh m\u1ebd, kh\u00f4ng th\u1ec3 b\u1ecb b\u00ean th\u1ee9 ba nghe l\u00e9n ho\u1eb7c s\u1eeda \u0111\u1ed5i.<\/p>\n\n\n\n

T\u1ea1i sao c\u1ea7n s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 SSL?<\/h2>\n\n\n\n

Trong m\u00f4i tr\u01b0\u1eddng internet hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t t\u00f9y ch\u1ecdn t\u00f9y \u00fd, m\u00e0 c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n \u0111\u1ec3 b\u1ea3o v\u1ec7 an ninh m\u1ea1ng, gi\u00e0nh \u0111\u01b0\u1ee3c s\u1ef1 tin t\u01b0\u1edfng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n

\u0110\u1ea3m b\u1ea3o an to\u00e0n trong qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u
\n\u0110\u00e2y ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i nh\u1ea5t c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL. N\u00f3 m\u00e3 h\u00f3a t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7, bao g\u1ed3m nh\u01b0ng kh\u00f4ng gi\u1edbi h\u1ea1n \u1edf th\u00f4ng tin \u0111\u0103ng nh\u1eadp, s\u1ed1 th\u1ebb t\u00edn d\u1ee5ng, d\u1eef li\u1ec7u c\u00e1 nh\u00e2n, k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm v\u00e0 n\u1ed9i dung tr\u00f2 chuy\u1ec7n. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb ng\u01b0\u1eddi trung gian, vi\u1ec7c nghe l\u00e9n l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp m\u1ea1ng v\u00e0 vi\u1ec7c \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u, \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ea3o m\u1eadt v\u00e0 to\u00e0n v\u1eb9n c\u1ee7a th\u00f4ng tin.<\/p>\n\n\n\n

X\u00e2y d\u1ef1ng uy t\u00edn cho danh t\u00ednh c\u1ee7a trang web
\nC\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 \u0111\u00e1ng tin c\u1eady s\u1ebd ti\u1ebfn h\u00e0nh ki\u1ec3m tra nghi\u00eam ng\u1eb7t danh t\u00ednh c\u1ee7a t\u1ed5 ch\u1ee9c n\u1ed9p \u0111\u01a1n tr\u01b0\u1edbc khi c\u1ea5p ch\u1ee9ng ch\u1ec9 SSL. Trong s\u1ed1 \u0111\u00f3, ch\u1ee9ng ch\u1ec9 c\u00f3 x\u00e1c th\u1ef1c m\u1edf r\u1ed9ng (Extended Validation \u2013 EV) \u0111\u00f2i h\u1ecfi c\u00e1c ti\u00eau chu\u1ea9n cao nh\u1ea5t; t\u00ean c\u00f4ng ty s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u00e0u xanh l\u00e1 c\u00e2y trong thanh \u0111\u1ecba ch\u1ec9 c\u1ee7a tr\u00ecnh duy\u1ec7t, gi\u00fap ng\u01b0\u1eddi d\u00f9ng tin t\u01b0\u1edfng nhi\u1ec1u h\u01a1n v\u00e0o t\u00ednh h\u1ee3p ph\u00e1p c\u1ee7a trang web. Ngay c\u1ea3 nh\u1eefng ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n c\u01a1 b\u1ea3n nh\u1ea5t c\u0169ng ch\u1ee9ng minh quy\u1ec1n ki\u1ec3m so\u00e1t c\u1ee7a ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n \u0111\u1ed1i v\u1edbi t\u00ean mi\u1ec1n \u0111\u00f3, mang l\u1ea1i s\u1ef1 b\u1ea3o v\u1ec7 an ninh c\u01a1 b\u1ea3n cho ng\u01b0\u1eddi d\u00f9ng.<\/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\"Ch\u1ee9ng\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\tCh\u1ee9ng ch\u1ec9 SSL 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\tBlueHost SSL cung c\u1ea5p t\u00f9y ch\u1ecdn gia h\u1ea1n t\u1eeb 1-2 n\u0103m, h\u1ed7 tr\u1ee3 thu\u1eadt to\u00e1n RSA ho\u1eb7c ECC, \u0111\u1ed9 d\u00e0i kh\u00f3a l\u00ean \u0111\u1ebfn 4096 bit v\u00e0 b\u1ea3o hi\u1ec3m l\u00ean \u0111\u1ebfn 1,75 tri\u1ec7u USD.<\/span>\r\n\t\t\t\t
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T\u1eeb 7,49 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp ch\u1ee9ng ch\u1ec9 SSL Bluehost \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\"Ch\u1ee9ng\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\tCh\u1ee9ng ch\u1ec9 SSL hosting.com<\/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\u1ee9ng ch\u1ec9 SSL DV, OV, EV gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng, m\u00e3 h\u00f3a l\u00ean \u0111\u1ebfn 256 bit, s\u1ed1 ti\u1ec1n b\u1ea3o \u0111\u1ea3m t\u1eeb 5 ~ 100 tri\u1ec7u USD, h\u1ed7 tr\u1ee3 24\/7<\/span>\r\n\t\t\t\t
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B\u1eaft \u0111\u1ea7u t\u1eeb $2.5 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp hosting.com Ch\u1ee9ng ch\u1ec9 SSL \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

\u0110\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i
\nC\u00e1c tr\u00ecnh duy\u1ec7t ph\u1ed5 bi\u1ebfn nh\u01b0 Google \u0111\u00e3 t\u1eeb l\u00e2u coi HTTPS l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng trong vi\u1ec7c x\u1ebfp h\u1ea1ng trang web, v\u00e0 s\u1ebd \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng nh\u1eefng trang web kh\u00f4ng s\u1eed d\u1ee5ng HTTPS l\u00e0 \u201ckh\u00f4ng an to\u00e0n\u201d. Nhi\u1ec1u API web hi\u1ec7n \u0111\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c d\u1ecbch v\u1ee5 li\u00ean quan \u0111\u1ebfn v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd ho\u1eb7c th\u00f4ng b\u00e1o \u0111\u1ea9y (push notifications), \u0111\u1ec1u y\u00eau c\u1ea7u trang web ph\u1ea3i cung c\u1ea5p d\u1ecbch v\u1ee5 th\u00f4ng qua giao th\u1ee9c HTTPS. Vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 SSL ch\u00ednh l\u00e0 \u201cv\u00e9 v\u00e0o\u201d \u0111\u1ec3 c\u00e1c trang web c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng nh\u1eefng c\u00f4ng ngh\u1ec7 m\u1edbi nh\u1ea5t.<\/p>\n\n\n\n

C\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL ch\u00ednh<\/h2>\n\n\n\n

D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c v\u00e0 ph\u1ea1m vi ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, ch\u1ee9ng ch\u1ec9 SSL \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i ch\u00ednh nh\u1eb1m \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c t\u00ecnh hu\u1ed1ng kh\u00e1c nhau.<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 mang l\u1ea1i t\u1ed1c \u0111\u1ed9 c\u1ea5p ph\u00e1t nhanh nh\u1ea5t v\u00e0 chi ph\u00ed th\u1ea5p nh\u1ea5t. C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 ch\u1ec9 x\u00e1c minh quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n c\u1ee7a ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n. Ch\u00fang ch\u1ec9 cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a c\u01a1 b\u1ea3n, r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c blog c\u00e1 nh\u00e2n, trang web tr\u00ecnh b\u00e0y nh\u1ecf, ho\u1eb7c c\u00e1c trang kh\u00f4ng y\u00eau c\u1ea7u nh\u1eadp d\u1eef li\u1ec7u. Lo\u1ea1i ch\u1ee9ng ch\u1ec9 n\u00e0y th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e1t trong v\u00f2ng v\u00e0i ph\u00fat.<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u1ed5 ch\u1ee9c<\/h3>\n\n\n\n

D\u1ef1a tr\u00ean qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c DV (Domain Validation), c\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 s\u1ed1 (CA \u2013 Certificate Authorities) c\u00f2n ti\u1ebfn h\u00e0nh ki\u1ec3m tra th\u1ee7 c\u00f4ng v\u1ec1 t\u00ednh x\u00e1c th\u1ef1c v\u00e0 h\u1ee3p ph\u00e1p c\u1ee7a t\u1ed5 ch\u1ee9c n\u1ed9p \u0111\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 ki\u1ec3m tra th\u00f4ng tin \u0111\u0103ng k\u00fd c\u1ee7a c\u00f4ng ty \u0111\u00f3. Do \u0111\u00f3, nh\u1eefng ch\u1ee9ng ch\u1ec9 n\u00e0y kh\u00f4ng ch\u1ec9 c\u00f3 ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a d\u1eef li\u1ec7u m\u00e0 c\u00f2n ch\u1ee9ng minh v\u1edbi ng\u01b0\u1eddi truy c\u1eadp r\u1eb1ng t\u1ed5 ch\u1ee9c \u0111\u1ee9ng sau trang web l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 c\u00f3 th\u1eadt v\u00e0 h\u1ee3p ph\u00e1p. Ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c trang web ch\u00ednh th\u1ee9c c\u1ee7a doanh nghi\u1ec7p, c\u00e1c trang web th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed quy m\u00f4 v\u1eeba v\u00e0 nh\u1ecf, v.v.<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c m\u1edf r\u1ed9ng<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL c\u00f3 ti\u00eau chu\u1ea9n x\u00e1c th\u1ef1c nghi\u00eam ng\u1eb7t nh\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady cao nh\u1ea5t. C\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authorities) s\u1ebd th\u1ef1c hi\u1ec7n m\u1ed9t quy tr\u00ecnh ki\u1ec3m tra chu\u1ea9n h\u00f3a qu\u1ed1c t\u1ebf, bao g\u1ed3m vi\u1ec7c x\u00e1c nh\u1eadn s\u1ef1 t\u1ed3n t\u1ea1i v\u1ec1 m\u1eb7t ph\u00e1p l\u00fd, v\u1eadt l\u00fd v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ed5 ch\u1ee9c \u0111\u00f3. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng qua bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a m\u00e0u xanh l\u00e1 c\u00e2y c\u00f9ng t\u00ean c\u00f4ng ty \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, xu\u1ea5t hi\u1ec7n tr\u1ef1c ti\u1ebfp trong thanh \u0111\u1ecba ch\u1ec9 c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t. Lo\u1ea1i ch\u1ee9ng ch\u1ec9 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi c\u00e1c t\u1ed5 ch\u1ee9c t\u00e0i ch\u00ednh, c\u00e1c n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed l\u1edbn, v\u00e0 c\u00e1c trang web ch\u00ednh ph\u1ee7 x\u1eed l\u00fd th\u00f4ng tin c\u00f3 \u0111\u1ed9 nh\u1ea1y cao.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL?<\/h2>\n\n\n\n

Vi\u1ec7c ch\u1ecdn \u0111\u00fang lo\u1ea1i ch\u1ee9ng ch\u1ec9 v\u00e0 c\u00e0i \u0111\u1eb7t ch\u00fang m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c l\u00e0 nh\u1eefng b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u00fang c\u00f3 th\u1ec3 ph\u00e1t huy t\u1ed1i \u0111a hi\u1ec7u qu\u1ea3 c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

Ch\u1ecdn lo\u1ea1i ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p
\n\u0110\u1ed1i v\u1edbi c\u00e1c trang web c\u00e1 nh\u00e2n s\u1eed d\u1ee5ng m\u1ed9t t\u00ean mi\u1ec1n duy nh\u1ea5t, m\u1ed9t ch\u1ee9ng ch\u1ec9 DV (Domain Validation) th\u01b0\u1eddng \u0111\u00e3 \u0111\u1ee7 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u b\u1ea3o m\u1eadt. N\u1ebfu trang web doanh nghi\u1ec7p c\u1ee7a b\u1ea1n c\u00f3 nhi\u1ec1u t\u00ean mi\u1ec1n con, b\u1ea1n n\u00ean xem x\u00e9t s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 c\u00f3 k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n (wildcard certificate) \u2013 m\u1ed9t ch\u1ee9ng ch\u1ec9 duy nh\u1ea5t c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 c\u1ea3 t\u00ean mi\u1ec1n ch\u00ednh v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n con c\u00f9ng c\u1ea5p. \u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p s\u1edf h\u1eefu nhi\u1ec1u t\u00ean mi\u1ec1n c\u00f3 t\u00ean mi\u1ec1n c\u1ea5p cao kh\u00e1c nhau, vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n (multi-domain certificate) l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 hi\u1ec7u<\/p>\n\n\n\n

Nh\u1eadn ch\u1ee9ng ch\u1ec9 t\u1eeb c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ea9m quy\u1ec1n
\nKhi mua ch\u1ee9ng ch\u1ec9, h\u00e3y ch\u1eafc ch\u1eafn ch\u1ecdn m\u1ed9t t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authority) \u0111\u01b0\u1ee3c tin t\u01b0\u1edfng r\u1ed9ng r\u00e3i tr\u00ean to\u00e0n c\u1ea7u ho\u1eb7c trong khu v\u1ef1c c\u1ee7a b\u1ea1n. \u0110i\u1ec1u n\u00e0y s\u1ebd \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ee9ng ch\u1ec9 c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh tr\u00ean th\u1ebf gi\u1edbi nh\u1eadn di\u1ec7n v\u00e0 tin t\u01b0\u1edfng, gi\u00fap tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c c\u1ea3nh b\u00e1o b\u1ea3o m\u1eadt kh\u00f4ng c\u1ea7n thi\u1ebft. Nhi\u1ec1u t\u1ed5 ch\u1ee9c CA \u0111\u00e1ng tin c\u1eady c\u0169ng cung c\u1ea5p ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed v\u1edbi th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c 90 ng\u00e0y, ho\u1eb7c d\u1ecbch v\u1ee5 c\u1ea5p ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed th\u00f4ng qua c\u00e1c \u0111\u1ed1i t\u00e1c c\u1ee7a h\u1ecd.<\/p>\n\n\n

\n\n
\n Ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a UltaHost<\/strong>\n
Ch\u1ee9ng ch\u1ec9 DV, EV, OV, h\u1ed7 tr\u1ee3 m\u1ee9c b\u1ea3o hi\u1ec3m t\u1ed1i \u0111a $1,750,000 USD, h\u1ed7 tr\u1ee3 v\u00f4 s\u1ed1 t\u00ean mi\u1ec1n ph\u1ee5, h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng iOS v\u00e0 Android, \u01b0u \u0111\u00e3i gi\u00e1 t\u1eeb 20% m\u1ed7i th\u00e1ng, v\u1edbi m\u1ee9c ph\u00ed $15,95 USD, b\u1ea3o l\u00e3nh ho\u00e0n ti\u1ec1n trong v\u00f2ng 30 ng\u00e0y.<\/div>\n <\/div>\n\n
\n \n \n \"Logo\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

Quy tr\u00ecnh c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh
\nSau khi thu \u0111\u01b0\u1ee3c t\u1ec7p ch\u1ee9ng ch\u1ec9, b\u1ea1n c\u1ea7n tri\u1ec3n khai n\u00f3 l\u00ean m\u00e1y ch\u1ee7 Web c\u1ee7a m\u00ecnh. C\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3 s\u1ebd kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Th\u00f4ng th\u01b0\u1eddng, b\u1ea1n c\u1ea7n t\u1ea3i t\u1ec7p ch\u1ee9ng ch\u1ec9 v\u00e0 kh\u00f3a ri\u00eang t\u01b0\u01a1ng \u1ee9ng l\u00ean v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh tr\u00ean m\u00e1y ch\u1ee7, sau \u0111\u00f3 ch\u1ec9 \u0111\u1ecbnh \u0111\u01b0\u1eddng d\u1eabn t\u1edbi t\u1ec7p ch\u1ee9ng ch\u1ec9 trong t\u1eadp tin c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 v\u00e0 b\u1eadt ch\u1ee9c n\u0103ng chuy\u1ec3n h\u01b0\u1edbng t\u1ef1 \u0111\u1ed9ng sang giao th\u1ee9c HTTPS. Sau khi qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t ho\u00e0n t\u1ea5t, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra SSL tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 x\u00e1c minh r\u1eb1ng chu\u1ed7i ch\u1ee9ng ch\u1ec9 l\u00e0 ho\u00e0n ch\u1ec9nh, phi\u00ean b\u1ea3n giao th\u1ee9c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 an to\u00e0n, v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7 h\u1ed5ng trong c\u1ea5u h\u00ecnh.<\/p>\n\n\n\n

C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t \u0111\u1ec3 qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n

Vi\u1ec7c tri\u1ec3n khai c\u00e1c ch\u1ee9ng ch\u1ec9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ch\u1ec9 di\u1ec5n ra m\u1ed9t l\u1ea7n; vi\u1ec7c qu\u1ea3n l\u00fd v\u00f2ng \u0111\u1eddi c\u1ee7a ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 l\u00e0 \u0111i\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n

Theo d\u00f5i li\u00ean t\u1ee5c th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c
\nSSL ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3, v\u00e0 theo c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh, th\u1eddi h\u1ea1n n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn t\u1eeb nhi\u1ec1u n\u0103m tr\u01b0\u1edbc xu\u1ed1ng c\u00f2n d\u01b0\u1edbi m\u1ed9t n\u0103m. Khi ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n, trang web s\u1ebd kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c v\u00e0 s\u1ebd xu\u1ea5t hi\u1ec7n c\u1ea3nh b\u00e1o nghi\u00eam tr\u1ecdng tr\u00ean tr\u00ecnh duy\u1ec7t. Vi\u1ec7c thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t v\u00e0 c\u1ea3nh b\u00e1o ch\u1eb7t ch\u1ebd, c\u0169ng nh\u01b0 ho\u00e0n t\u1ea5t vi\u1ec7c gia h\u1ea1n ch\u1ee9ng ch\u1ec9 tr\u01b0\u1edbc khi n\u00f3 h\u1ebft h\u1ea1n, l\u00e0 y\u00eau c\u1ea7u c\u01a1 b\u1ea3n trong c\u00f4ng t\u00e1c v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec h\u1ec7 th\u1ed1ng. C\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c gia h\u1ea1n ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m<\/p>\n\n\n\n

H\u00e3y ch\u00fa \u00fd \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt v\u00e0 thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh m\u00e3 h\u00f3a.
\nKhi kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c n\u00e2ng cao, c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a c\u0169 c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i nh\u1eefng l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt. C\u1ea7n th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o lo\u1ea1i b\u1ecf c\u00e1c giao th\u1ee9c kh\u00f4ng an to\u00e0n nh\u01b0 TLS 1.0\/1.1 v\u00e0 b\u1eaft bu\u1ed9c s\u1eed d\u1ee5ng TLS 1.2 ho\u1eb7c c\u00e1c phi\u00ean b\u1ea3n m\u1edbi h\u01a1n. \u0110\u1ed3ng th\u1eddi, c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ed9 c\u00f4ng c\u1ee5 m\u00e3 h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ee7 m\u1ea1nh m\u1ebd \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ti\u1ec1m \u1ea9n.<\/p>\n\n\n\n

H\u00e3y b\u1ea3o m\u1eadt kh\u00f3a ri\u00eang c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch ch\u1eb7t ch\u1ebd.
\nKh\u00f3a ri\u00eang c\u1ee7a ch\u1ee9ng ch\u1ec9 l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ed1i v\u1edbi t\u00ednh b\u1ea3o m\u1eadt; n\u1ebfu b\u1ecb r\u00f2 r\u1ec9, to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng m\u00e3 h\u00f3a s\u1ebd kh\u00f4ng c\u00f2n hi\u1ec7u l\u1ef1c. Kh\u00f3a ri\u00eang ph\u1ea3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong m\u1ed9t th\u01b0 m\u1ee5c an to\u00e0n v\u00e0 \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp tr\u00ean m\u00e1y ch\u1ee7, \u0111\u1ed3ng th\u1eddi quy\u1ec1n truy c\u1eadp v\u00e0o n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c h\u1ea1n ch\u1ebf nghi\u00eam ng\u1eb7t. Ngay sau khi y\u00eau c\u1ea7u k\u00fd ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c t\u1ea1o ra, t\u1ec7p CSR (Certificate Signing Request) c\u1ea7n \u0111\u01b0\u1ee3c x\u00f3a kh\u1ecfi m\u00e1y ch\u1ee7. Vi\u1ec7c thay \u0111\u1ed5i kh\u00f3a \u0111\u1ecbnh k\u1ef3 c\u0169ng l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p n\u00e2ng cao m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt.<\/p>\n\n\n\n

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

SSL ch\u1ee9ng ch\u1ec9 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a b\u1ea3o m\u1eadt m\u1ea1ng hi\u1ec7n \u0111\u1ea1i; n\u00f3 b\u1ea3o v\u1ec7 an to\u00e0n qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng c\u00f4ng ngh\u1ec7 m\u00e3 h\u00f3a v\u00e0 thi\u1ebft l\u1eadp m\u1ed1i quan h\u1ec7 tin c\u1eady gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 trang web th\u00f4ng qua c\u00e1c c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c danh t\u00ednh. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SSL, ph\u1ea1m vi s\u1eed d\u1ee5ng c\u1ee7a c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 kh\u00e1c nhau, c\u0169ng nh\u01b0 n\u1eafm v\u1eefng c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh t\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn, c\u00e0i \u0111\u1eb7t \u0111\u1ebfn b\u1ea3o tr\u00ec ch\u00fang l\u00e0 \u0111i\u1ec1u c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u1ecdi ch\u1ee7 s\u1edf h\u1eefu trang web, nh\u00e0 ph\u00e1t tri\u1ec3n ho\u1eb7c nh\u00e2n vi\u00ean v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng. Trong m\u00f4i tr\u01b0\u1eddng internet hi\u1ec7n t\u1ea1i v\u00e0 t\u01b0\u01a1ng lai, vi\u1ec7c k\u00edch ho\u1ea1t k\u1ebft n\u1ed1i HTTPS cho trang web kh\u00f4ng ch\u1ec9 l\u00e0 tr\u00e1ch nhi\u1ec7m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng m\u00e0 c\u00f2n l\u00e0 d\u1ea5u hi\u1ec7u c\u01a1 b\u1ea3n cho s\u1ef1 ho\u1ea1t \u0111\u1ed9ng l\u00e0nh m\u1ea1nh v\u00e0 \u0111\u00e1ng tin c\u1eady c\u1ee7a trang web \u0111\u00f3.<\/p>\n\n\n\n

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

C\u00e1c ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed c\u00f3 \u0111\u00e1ng tin c\u1eady kh\u00f4ng?<\/h3>\n\n\n\n

\u0110\u00fang v\u1eady, c\u00e1c ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed do c\u00e1c t\u1ed5 ch\u1ee9c phi l\u1ee3i nhu\u1eadn uy t\u00edn ho\u1eb7c c\u00e1c \u0111\u1ed1i t\u00e1c cung c\u1ea5p ch\u1ee9ng ch\u1ec9 \u0111\u00e1ng tin c\u1eady cung c\u1ea5p l\u00e0 an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi tr\u00ecnh duy\u1ec7t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c ch\u1ee9ng ch\u1ec9 DV c\u00f3 ph\u00ed. Ch\u00fang ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00fac \u0111\u1ea9y s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a giao th\u1ee9c HTTPS, v\u00e0 r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c trang web c\u00e1 nh\u00e2n, m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m, v\u00e0 c\u00e1c d\u1ef1 \u00e1n nh\u1ecf.<\/p>\n\n\n\n

Khi ch\u1ee9ng ch\u1ec9 SSL h\u1ebft h\u1ea1n, s\u1ebd c\u00f3 nh\u1eefng h\u1eadu qu\u1ea3 sau:<\/h3>\n\n\n\n

Vi\u1ec7c gi\u1ea5y t\u1edd ch\u1ee9ng nh\u1eadn h\u1ebft h\u1ea1n s\u1ebd khi\u1ebfn trang web kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c truy c\u1eadp b\u00ecnh th\u01b0\u1eddng qua giao th\u1ee9c HTTPS. Khi ng\u01b0\u1eddi d\u00f9ng c\u1ed1 g\u1eafng truy c\u1eadp, tr\u00ecnh duy\u1ec7t s\u1ebd hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o n\u1ed5i b\u1eadt v\u1edbi n\u1ed9i dung \u201cKh\u00f4ng an to\u00e0n\u201d ho\u1eb7c \u201cK\u1ebft n\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt\u201d, v\u00e0 c\u00f3 th\u1ec3 ng\u0103n c\u1ea3n h\u1ecd ti\u1ebfp t\u1ee5c truy c\u1eadp v\u00e0o trang web. \u0110i\u1ec1u n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn kh\u1ea3 n\u0103ng truy c\u1eadp trang web, tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n\n\n\n

M\u1ed9t ch\u1ee9ng ch\u1ec9 SSL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00f4ng?<\/h3>\n\n\n\n

\u0110i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i ch\u1ee9ng ch\u1ec9. Ch\u1ee9ng ch\u1ec9 t\u00ean mi\u1ec1n \u0111\u01a1n ti\u00eau chu\u1ea9n ch\u1ec9 c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 m\u1ed9t t\u00ean mi\u1ec1n h\u1ee3p l\u1ec7 duy nh\u1ea5t. Ch\u1ee9ng ch\u1ec9 ch\u1ee9a k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n (* \u2013 wildcard) c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 m\u1ed9t t\u00ean mi\u1ec1n ch\u00ednh c\u00f9ng t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n con c\u00f9ng c\u1ea5p c\u1ee7a n\u00f3. Trong khi \u0111\u00f3, ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n cho ph\u00e9p b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00e1c nhau trong c\u00f9ng m\u1ed9t ch\u1ee9ng ch\u1ec9; b\u1ea1n ch\u1ec9 c\u1ea7n li\u1ec7t k\u00ea ch\u00fang nh\u01b0 c\u00e1c m\u1ee5c b\u1ed5 sung khi n\u1ed9p \u0111\u01a1n xin c\u1ea5p ch\u1ee9ng ch\u1ec9.<\/p>\n\n\n\n

C\u00e1c trang web s\u1eed d\u1ee5ng giao th\u1ee9c HTTPS c\u00f3 ch\u1eafc ch\u1eafn an to\u00e0n kh\u00f4ng?<\/h3>\n\n\n\n

HTTPS ch\u1ee7 y\u1ebfu \u0111\u1ea3m b\u1ea3o an to\u00e0n trong qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u, t\u1ee9c l\u00e0 an to\u00e0n c\u1ee7a k\u1ebft n\u1ed1i gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 trang web. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 ch\u00ednh trang web hay m\u00e1y ch\u1ee7 c\u1ee7a n\u00f3 ho\u00e0n to\u00e0n an to\u00e0n. Trang web v\u1eabn c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i c\u00e1c r\u1ee7i ro b\u1ea3o m\u1eadt kh\u00e1c nh\u01b0 l\u1ed7 h\u1ed5ng trong m\u00e3 ngu\u1ed3n, c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 kh\u00f4ng \u0111\u00fang c\u00e1ch, ho\u1eb7c c\u00e1c l\u1ed7i trong h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd n\u1ed9i dung. HTTPS l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o v\u1ec7 an to\u00e0n cho trang web, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00e0 y\u1ebfu t\u1ed1 duy nh\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":"

SSL ch\u1ee9ng ch\u1ec9 l\u00e0 nh\u1eefng t\u1ec7p tin k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u00ean m\u00e1y ch\u1ee7, c\u00f3 ch\u1ee9c n\u0103ng thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a gi\u1eefa tr\u00ecnh duy\u1ec7t v\u00e0 m\u00e1y ch\u1ee7, nh\u1eb1m b\u1ea3o v\u1ec7 an to\u00e0n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i v\u00e0 x\u00e1c th\u1ef1c danh t\u00ednh c\u1ee7a trang web. B\u00e0i vi\u1ebft gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SSL ch\u1ee9ng ch\u1ec9, gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i c\u1ee7a n\u00f3, c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 ch\u00ednh (DV\/OV\/EV), c\u0169ng nh\u01b0 c\u00e1ch l\u1ef1a ch\u1ecdn, c\u00e0i \u0111\u1eb7t v\u00e0 qu\u1ea3n l\u00fd ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"knowledge_category":[277],"class_list":["post-12378331","knowledge_post","type-knowledge_post","status-publish","hentry","knowledge_category-ssl-certificate"],"acf":{"site_seo_keywords":"SSL\u8bc1\u4e66,HTTPS,\u5b89\u5168\u8bc1\u4e66,SSL\u8bc1\u4e66\u7c7b\u578b,SSL\u8bc1\u4e66\u5b89\u88c5,SSL\u8bc1\u4e66\u4f5c\u7528,\u7f51\u7ad9\u6570\u636e\u52a0\u5bc6,SSL\u8bc1\u4e66\u7ba1\u7406"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12378331","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\/12378331\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12378331"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12378331"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12378331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}