{"id":476911,"date":"2023-08-09T09:05:02","date_gmt":"2023-08-09T09:05:02","guid":{"rendered":""},"modified":"2023-09-05T11:13:39","modified_gmt":"2023-09-05T11:13:39","slug":"dns-over-tls-dot","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/dns-over-tls-dot\/","title":{"rendered":"DNS qua TLS (DoT)"},"content":{"rendered":"

DNS over TLS (DoT) l\u00e0 giao th\u1ee9c cung c\u1ea5p l\u1edbp b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 b\u1ed5 sung cho c\u00e1c truy v\u1ea5n H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (DNS). DNS l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 thi\u1ebft y\u1ebfu gi\u00fap d\u1ecbch c\u00e1c t\u00ean mi\u1ec1n m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c, nh\u01b0 \u201coneproxy.pro,\u201d th\u00e0nh \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c m\u00e1y t\u00ednh s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb v\u00e0 li\u00ean l\u1ea1c v\u1edbi c\u00e1c trang web v\u00e0 d\u1ecbch v\u1ee5 tr\u00ean internet. Theo truy\u1ec1n th\u1ed1ng, c\u00e1c truy v\u1ea5n DNS \u0111\u01b0\u1ee3c g\u1eedi \u1edf d\u1ea1ng v\u0103n b\u1ea3n g\u1ed1c, khi\u1ebfn ch\u00fang d\u1ec5 b\u1ecb nghe l\u00e9n, t\u1ea5n c\u00f4ng trung gian v\u00e0 gi\u1ea3 m\u1ea1o DNS.<\/p>\n

DNS qua TLS gi\u1ea3i quy\u1ebft nh\u1eefng m\u1ed1i lo ng\u1ea1i v\u1ec1 b\u1ea3o m\u1eadt n\u00e0y b\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n v\u00e0 ph\u1ea3n h\u1ed3i DNS b\u1eb1ng giao th\u1ee9c B\u1ea3o m\u1eadt l\u1edbp v\u1eadn chuy\u1ec3n (TLS), tr\u01b0\u1edbc \u0111\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 L\u1edbp c\u1ed5ng b\u1ea3o m\u1eadt (SSL). B\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a l\u01b0u l\u01b0\u1ee3ng DNS, c\u00e1c b\u00ean th\u1ee9 ba kh\u00f4ng th\u1ec3 ch\u1eb7n ho\u1eb7c gi\u1ea3 m\u1ea1o c\u00e1c truy v\u1ea5n, cung c\u1ea5p cho ng\u01b0\u1eddi d\u00f9ng m\u1ee9c \u0111\u1ed9 ri\u00eang t\u01b0 v\u00e0 b\u1ea3o v\u1ec7 cao h\u01a1n.<\/p>\n

L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a DNS over TLS (DoT) v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n

DNS qua TLS \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 2014 trong RFC 7858, c\u00f3 ti\u00eau \u0111\u1ec1 \u201cTh\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt cho DNS qua B\u1ea3o m\u1eadt l\u1edbp truy\u1ec1n t\u1ea3i (TLS)\u201d. \u0110\u1ec1 xu\u1ea5t n\u00e0y nh\u1eb1m c\u1ea3i thi\u1ec7n b\u1ea3o m\u1eadt DNS b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng m\u00e3 h\u00f3a cho c\u00e1c truy v\u1ea5n v\u00e0 ph\u1ea3n h\u1ed3i DNS. RFC \u0111\u00e3 ghi l\u1ea1i c\u00e1c ti\u00eau chu\u1ea9n v\u00e0 giao th\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 tri\u1ec3n khai DNS qua TLS.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 DNS over TLS (DoT)<\/h2>\n

DNS over TLS ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i TLS an to\u00e0n gi\u1eefa m\u00e1y kh\u00e1ch (b\u1ed9 ph\u00e2n gi\u1ea3i) v\u00e0 m\u00e1y ch\u1ee7 DNS. Khi m\u1ed9t truy v\u1ea5n DNS \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c g\u00f3i g\u1ecdn trong giao th\u1ee9c TLS v\u00e0 g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS qua k\u00eanh b\u1ea3o m\u1eadt. Sau \u0111\u00f3, m\u00e1y ch\u1ee7 x\u1eed l\u00fd truy v\u1ea5n, tr\u1ea3 v\u1ec1 ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a cho m\u00e1y kh\u00e1ch, sau \u0111\u00f3 \u0111\u01b0\u1ee3c m\u00e1y kh\u00e1ch gi\u1ea3i m\u00e3. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng giao ti\u1ebfp gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 DNS \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi s\u1ef1 can thi\u1ec7p v\u00e0 thao t\u00fang c\u1ee7a nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng.<\/p>\n

C\u1ed5ng \u0111i\u1ec3n h\u00ecnh cho DNS qua TLS l\u00e0 853 v\u00e0 n\u00f3 s\u1eed d\u1ee5ng c\u00f9ng \u0111\u1ecbnh d\u1ea1ng th\u00f4ng b\u00e1o DNS nh\u01b0 DNS th\u00f4ng th\u01b0\u1eddng qua UDP ho\u1eb7c TCP. Tuy nhi\u00ean, n\u00f3 \u0111\u01b0\u1ee3c g\u00f3i trong m\u1ed9t c\u00e1i b\u1eaft tay TLS \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt.<\/p>\n

C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a DNS over TLS (DoT) \u2013 C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

Qu\u00e1 tr\u00ecnh DNS qua TLS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c b\u01b0\u1edbc sau:<\/p>\n

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  1. \n

    B\u1eaft tay<\/strong>: M\u00e1y kh\u00e1ch b\u1eaft \u0111\u1ea7u b\u1eaft tay TLS v\u1edbi m\u00e1y ch\u1ee7 DNS, thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n.<\/p>\n<\/li>\n

  2. \n

    Truy v\u1ea5n<\/strong>: M\u00e1y kh\u00e1ch g\u1eedi truy v\u1ea5n DNS \u0111\u1ebfn m\u00e1y ch\u1ee7 th\u00f4ng qua k\u00eanh TLS \u0111\u00e3 thi\u1ebft l\u1eadp.<\/p>\n<\/li>\n

  3. \n

    X\u1eed l\u00fd<\/strong>: M\u00e1y ch\u1ee7 DNS x\u1eed l\u00fd truy v\u1ea5n v\u00e0 t\u1ea1o ph\u1ea3n h\u1ed3i.<\/p>\n<\/li>\n

  4. \n

    Ph\u1ea3n \u1ee9ng<\/strong>: M\u00e1y ch\u1ee7 g\u1eedi ph\u1ea3n h\u1ed3i DNS \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a tr\u1edf l\u1ea1i m\u00e1y kh\u00e1ch.<\/p>\n<\/li>\n

  5. \n

    gi\u1ea3i m\u00e3<\/strong>: M\u00e1y kh\u00e1ch gi\u1ea3i m\u00e3 ph\u1ea3n h\u1ed3i \u0111\u1ec3 l\u1ea5y th\u00f4ng tin DNS.<\/p>\n<\/li>\n

  6. \n

    Ngh\u1ecb quy\u1ebft<\/strong>: Kh\u00e1ch h\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ecba ch\u1ec9 IP \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n gi\u1ea3i v\u00e0 c\u00f3 th\u1ec3 truy c\u1eadp trang web ho\u1eb7c d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n<\/li>\n<\/ol>\n

    Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a DNS qua TLS (DoT)<\/h2>\n

    DNS qua TLS cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng quan tr\u1ecdng gi\u00fap n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t c\u1ea3i ti\u1ebfn c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ed1i v\u1edbi DNS truy\u1ec1n th\u1ed1ng:<\/p>\n

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    1. \n

      S\u1ef1 ri\u00eang t\u01b0<\/strong>: B\u1eb1ng c\u00e1ch m\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n DNS, DNS qua TLS ng\u0103n c\u00e1c b\u00ean th\u1ee9 ba, ch\u1eb3ng h\u1ea1n nh\u01b0 Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP), gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng DNS c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n

    2. \n

      B\u1ea3o v\u1ec7<\/strong>: M\u00e3 h\u00f3a l\u01b0u l\u01b0\u1ee3ng DNS b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o DNS v\u00e0 k\u1ebb trung gian, mang l\u1ea1i m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt cao h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n

    3. \n

      Ch\u00ednh tr\u1ef1c<\/strong>: DNS qua TLS \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a ph\u1ea3n h\u1ed3i DNS b\u1eb1ng c\u00e1ch b\u1ea3o v\u1ec7 ch\u00fang kh\u1ecfi b\u1ecb thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n.<\/p>\n<\/li>\n

    4. \n

      X\u00e1c th\u1ef1c<\/strong>: TLS cung c\u1ea5p x\u00e1c th\u1ef1c gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 DNS, gi\u1ea3m nguy c\u01a1 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 DNS \u0111\u1ed9c h\u1ea1i ho\u1eb7c gi\u1ea3 m\u1ea1o.<\/p>\n<\/li>\n

    5. \n

      Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/strong>: DNS qua TLS t\u01b0\u01a1ng th\u00edch v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng DNS hi\u1ec7n c\u00f3 v\u00e0 ch\u1ec9 y\u00eau c\u1ea7u nh\u1eefng thay \u0111\u1ed5i t\u1ed1i thi\u1ec3u \u0111\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 v\u00e0 m\u00e1y kh\u00e1ch DNS.<\/p>\n<\/li>\n

    6. \n

      M\u00e3 h\u00f3a ch\u1ecdn l\u1ecdc<\/strong>: DNS over TLS cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ch\u1ecdn truy v\u1ea5n DNS n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, mang l\u1ea1i s\u1ef1 linh ho\u1ea1t trong vi\u1ec7c tri\u1ec3n khai c\u00e1c ch\u00ednh s\u00e1ch m\u00e3 h\u00f3a.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c lo\u1ea1i DNS qua TLS (DoT)<\/h2>\n

      C\u00f3 hai ch\u1ebf \u0111\u1ed9 ch\u00ednh c\u1ee7a DNS qua TLS:<\/p>\n

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      1. \n

        ch\u1ebf \u0111\u1ed9 nghi\u00eam ng\u1eb7t<\/strong>: \u1ede ch\u1ebf \u0111\u1ed9 nghi\u00eam ng\u1eb7t, m\u00e1y kh\u00e1ch th\u1ef1c thi DNS qua TLS cho t\u1ea5t c\u1ea3 c\u00e1c truy v\u1ea5n c\u1ee7a n\u00f3. N\u1ebfu m\u00e1y ch\u1ee7 DNS kh\u00f4ng h\u1ed7 tr\u1ee3 TLS, m\u00e1y kh\u00e1ch s\u1ebd kh\u00f4ng g\u1eedi truy v\u1ea5n v\u00e0 s\u1ebd s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 thay th\u1ebf ho\u1eb7c tr\u1ea3 v\u1ec1 l\u1ed7i.<\/p>\n<\/li>\n

      2. \n

        Ch\u1ebf \u0111\u1ed9 c\u01a1 h\u1ed9i<\/strong>: \u1ede ch\u1ebf \u0111\u1ed9 c\u01a1 h\u1ed9i, m\u00e1y kh\u00e1ch th\u1eed DNS qua TLS nh\u01b0ng quay l\u1ea1i DNS th\u00f4ng th\u01b0\u1eddng n\u1ebfu m\u00e1y ch\u1ee7 kh\u00f4ng h\u1ed7 tr\u1ee3 m\u00e3 h\u00f3a. Ch\u1ebf \u0111\u1ed9 n\u00e0y cho ph\u00e9p ti\u1ebfp c\u1eadn linh ho\u1ea1t h\u01a1n v\u1edbi vi\u1ec7c \u00e1p d\u1ee5ng DNS qua TLS.<\/p>\n<\/li>\n<\/ol>\n

        H\u00e3y so s\u00e1nh hai ch\u1ebf \u0111\u1ed9:<\/p>\n\n\n\n\n\n\n
        C\u00e1ch th\u1ee9c<\/th>\nThu\u1eadn l\u1ee3i<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
        ch\u1ebf \u0111\u1ed9 nghi\u00eam ng\u1eb7t<\/td>\nTh\u1ef1c thi quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd.<\/td>\nM\u1ed9t s\u1ed1 m\u00e1y ch\u1ee7 DNS c\u00f3 th\u1ec3 kh\u00f4ng h\u1ed7 tr\u1ee3 TLS, g\u00e2y ra l\u1ed7i.<\/td>\n<\/tr>\n
        C\u01a1 h\u1ed9i<\/td>\n\u00c1p d\u1ee5ng d\u1ea7n d\u1ea7n, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch t\u1ed1t h\u01a1n.<\/td>\n\u0110\u1ea3m b\u1ea3o an ninh th\u1ea5p h\u01a1n v\u00ec m\u00e3 h\u00f3a kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng DNS qua TLS (DoT), c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

        C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng DNS qua TLS:<\/h3>\n
          \n
        1. \n

          B\u1ed9 ph\u00e2n gi\u1ea3i DNS c\u00f4ng c\u1ed9ng<\/strong>: Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ecbnh c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng c\u00e1c thi\u1ebft b\u1ecb ho\u1eb7c \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00e1c m\u00e1y ch\u1ee7 DNS c\u1ee5 th\u1ec3 h\u1ed7 tr\u1ee3 DNS qua TLS.<\/p>\n<\/li>\n

        2. \n

          T\u00edch h\u1ee3p h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/strong>: M\u1ed9t s\u1ed1 h\u1ec7 \u0111i\u1ec1u h\u00e0nh cung c\u1ea5p c\u00e1c t\u00f9y ch\u1ecdn t\u00edch h\u1ee3p \u0111\u1ec3 k\u00edch ho\u1ea1t DNS qua TLS, \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c tri\u1ec3n khai n\u00f3 cho t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng.<\/p>\n<\/li>\n

        3. \n

          M\u00e1y ch\u1ee7 proxy DNS qua TLS<\/strong>: Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy h\u1ed7 tr\u1ee3 DNS qua TLS \u0111\u1ec3 m\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n DNS tr\u01b0\u1edbc khi chuy\u1ec3n ti\u1ebfp ch\u00fang \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS th\u00f4ng th\u01b0\u1eddng.<\/p>\n<\/li>\n<\/ol>\n

          V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p:<\/h3>\n
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          1. \n

            Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/strong>: DNS over TLS y\u00eau c\u1ea7u h\u1ed7 tr\u1ee3 t\u1eeb c\u1ea3 m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 DNS. \u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb v\u00e0 m\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c.<\/p>\n<\/li>\n

          2. \n

            Hi\u1ec7u su\u1ea5t<\/strong>: Qu\u00e1 tr\u00ecnh m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 b\u1ed5 sung c\u00f3 th\u1ec3 t\u0103ng nh\u1eb9 th\u1eddi gian ph\u1ea3n h\u1ed3i cho c\u00e1c truy v\u1ea5n DNS.<\/p>\n<\/li>\n

          3. \n

            L\u00f2ng tin<\/strong>: Ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i tin t\u01b0\u1edfng nh\u00e0 cung c\u1ea5p DNS qua TLS v\u00ec nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 xem c\u00e1c truy v\u1ea5n DNS \u0111\u01b0\u1ee3c gi\u1ea3i m\u00e3. Ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 uy t\u00edn l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec s\u1ef1 ri\u00eang t\u01b0.<\/p>\n<\/li>\n<\/ol>\n

            C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n

            H\u00e3y so s\u00e1nh DNS qua TLS v\u1edbi c\u00e1c c\u01a1 ch\u1ebf b\u1ea3o m\u1eadt DNS kh\u00e1c:<\/p>\n\n\n\n\n\n\n\n
            C\u01a1 ch\u1ebf<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\nThu\u1eadn l\u1ee3i<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
            DNS qua TLS (DoT)<\/td>\nM\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n DNS b\u1eb1ng TLS.<\/td>\nTh\u1ef1c thi quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd.<\/td>\nY\u00eau c\u1ea7u h\u1ed7 tr\u1ee3 m\u00e1y ch\u1ee7 DNS v\u00e0 m\u00e1y kh\u00e1ch.<\/td>\n<\/tr>\n
            DNS qua HTTPS (DoH)<\/td>\n\u0110\u00f3ng g\u00f3i c\u00e1c truy v\u1ea5n DNS trong HTTPS.<\/td>\nV\u01b0\u1ee3t qua c\u00e1c c\u1ed5ng v\u00e0 t\u01b0\u1eddng l\u1eeda b\u1ecb giam gi\u1eef.<\/td>\nC\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 DNS \u0111\u1eb7c bi\u1ec7t.<\/td>\n<\/tr>\n
            DNSSEC<\/td>\nK\u00fd \u0111i\u1ec7n t\u1eed d\u1eef li\u1ec7u DNS \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n.<\/td>\nNg\u0103n ch\u1eb7n vi\u1ec7c gi\u1ea3 m\u1ea1o DNS v\u00e0 thao t\u00fang d\u1eef li\u1ec7u.<\/td>\nT\u0103ng k\u00edch th\u01b0\u1edbc ph\u1ea3n h\u1ed3i DNS v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong qu\u1ea3n l\u00fd.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            C\u00e1c quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn DNS over TLS (DoT)<\/h2>\n

            Khi ng\u01b0\u1eddi d\u00f9ng internet nh\u1eadn th\u1ee9c r\u00f5 h\u01a1n v\u1ec1 c\u00e1c m\u1ed1i quan t\u00e2m v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt, vi\u1ec7c \u00e1p d\u1ee5ng DNS qua TLS d\u1ef1 ki\u1ebfn s\u1ebd t\u0103ng l\u00ean. DNS qua TLS c\u00f3 th\u1ec3 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t t\u00ednh n\u0103ng ti\u00eau chu\u1ea9n trong c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh, tr\u00ecnh duy\u1ec7t v\u00e0 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn. Ngo\u00e0i ra, vi\u1ec7c s\u1eed d\u1ee5ng DNS qua TLS v\u1edbi DNSSEC c\u00f3 th\u1ec3 mang l\u1ea1i quy tr\u00ecnh ph\u00e2n gi\u1ea3i DNS an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n n\u1eefa.<\/p>\n

            H\u01a1n n\u1eefa, nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c v\u00e0 m\u00e3 h\u00f3a DNS c\u00f3 th\u1ec3 n\u00e2ng cao h\u01a1n n\u1eefa t\u00ednh ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt c\u1ee7a c\u00e1c truy v\u1ea5n DNS. DNS qua HTTPS (DoH) v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng t\u1ef1 c\u0169ng c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n \u0111\u1ec3 b\u1ed5 sung cho DNS qua TLS, cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn cho ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 b\u1ea3o m\u1eadt l\u01b0u l\u01b0\u1ee3ng DNS c\u1ee7a h\u1ecd.<\/p>\n

            C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi DNS qua TLS (DoT)<\/h2>\n

            M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c h\u1ed7 tr\u1ee3 DNS qua TLS cho ng\u01b0\u1eddi d\u00f9ng. M\u00e1y ch\u1ee7 proxy DNS-over-TLS \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 DNS. Khi ng\u01b0\u1eddi d\u00f9ng g\u1eedi truy v\u1ea5n DNS \u0111\u1ebfn m\u00e1y ch\u1ee7 proxy, n\u00f3 s\u1ebd m\u00e3 h\u00f3a truy v\u1ea5n b\u1eb1ng TLS v\u00e0 chuy\u1ec3n ti\u1ebfp truy v\u1ea5n \u0111\u00f3 \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS h\u1ed7 tr\u1ee3 DNS qua TLS. M\u00e1y ch\u1ee7 DNS x\u1eed l\u00fd truy v\u1ea5n, g\u1eedi l\u1ea1i ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a t\u1edbi proxy v\u00e0 proxy gi\u1ea3i m\u00e3 ph\u1ea3n h\u1ed3i tr\u01b0\u1edbc khi g\u1eedi l\u1ea1i cho m\u00e1y kh\u00e1ch.<\/p>\n

            B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 tri\u1ec3n khai DNS qua TLS m\u00e0 kh\u00f4ng y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh \u1ee9ng d\u1ee5ng ho\u1eb7c thi\u1ebft b\u1ecb ri\u00eang l\u1ebb. C\u00e1c nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy nh\u01b0 OneProxy (oneproxy.pro) c\u00f3 th\u1ec3 cung c\u1ea5p d\u1ecbch v\u1ee5 DNS qua TLS an to\u00e0n v\u00e0 t\u1eadp trung v\u00e0o quy\u1ec1n ri\u00eang t\u01b0, n\u00e2ng cao tr\u1ea3i nghi\u1ec7m Internet t\u1ed5ng th\u1ec3 cho ng\u01b0\u1eddi d\u00f9ng c\u1ee7a h\u1ecd.<\/p>\n

            Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

            \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 DNS qua TLS (DoT), b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

              \n
            1. RFC 7858 \u2013 \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt cho DNS qua b\u1ea3o m\u1eadt l\u1edbp v\u1eadn chuy\u1ec3n (TLS)<\/a><\/li>\n
            2. D\u1ef1 \u00e1n b\u1ea3o m\u1eadt DNS<\/a><\/li>\n
            3. Blog PowerDNS - DNS qua TLS, T\u1ed1t, X\u1ea5u v\u00e0 X\u1ea5u<\/a><\/li>\n<\/ol>\n

              H\u00e3y nh\u1edb r\u1eb1ng DNS qua TLS l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 n\u00e2ng cao quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt trong b\u1ed1i c\u1ea3nh internet ng\u00e0y nay. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 l\u1ee3i \u00edch v\u00e0 c\u00e1ch tri\u1ec3n khai c\u1ee7a n\u00f3, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc ch\u1ee7 \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c ho\u1ea1t \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn c\u1ee7a m\u00ecnh kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n.<\/p>","protected":false},"featured_media":468247,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476911","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about DNS over TLS (DoT) - Enhancing Privacy and Security for DNS Queries<\/mark>","faq_items":[{"question":"What is DNS over TLS (DoT)?","answer":"

              DNS over TLS (DoT) is a protocol that provides an additional layer of security and privacy for DNS queries. It encrypts DNS traffic using the Transport Layer Security (TLS) protocol, safeguarding your DNS activities from interception and manipulation.<\/p>"},{"question":"How does DNS over TLS work?","answer":"

              When you make a DNS query, DNS over TLS establishes a secure TLS connection between your device and the DNS server. The query is then encrypted and sent through this secure channel. The DNS server processes the query and sends back the encrypted response, which your device decrypts to access the requested website or service.<\/p>"},{"question":"What are the key features of DNS over TLS?","answer":"

              DNS over TLS offers enhanced privacy, security, integrity, and authentication. It prevents third-party monitoring, protects against DNS spoofing and man-in-the-middle attacks, and ensures the authenticity of DNS responses.<\/p>"},{"question":"What types of DNS over TLS (DoT) are there?","answer":"

              There are two main types of DNS over TLS:<\/p>

              1. Strict Mode: The client enforces DNS over TLS for all queries and may return an error if the server doesn't support TLS.<\/p><\/li>

              2. Opportunistic Mode: The client attempts DNS over TLS but falls back to regular DNS if TLS is not supported by the server.<\/p><\/li><\/ol>"},{"question":"How can I use DNS over TLS (DoT)?","answer":"

                There are several ways to use DNS over TLS:<\/p>

                1. Manually configure devices or applications to use DNS servers that support DoT.<\/p><\/li>

                2. Utilize operating systems that offer built-in options for enabling DNS over TLS.<\/p><\/li>

                3. Use DNS-over-TLS proxy servers to encrypt DNS queries before forwarding them to regular DNS servers.<\/p><\/li><\/ol>"},{"question":"What are the benefits and challenges of DNS over TLS?","answer":"

                  Benefits: Strong security, enhanced privacy, and compatibility with existing DNS infrastructure.<\/p>

                  Challenges: Requires support from both client and server, potential slight increase in response time, and the need to trust the DNS over TLS provider.<\/p>"},{"question":"How does DNS over TLS (DoT) compare with other DNS security mechanisms?","answer":"

                  DNS over TLS (DoT) stands out for its encryption using TLS. DNS over HTTPS (DoH) encapsulates queries in HTTPS, while DNSSEC ensures data integrity through digital signatures.<\/p>"},{"question":"What is the future of DNS over TLS?","answer":"

                  As users prioritize privacy and security, DNS over TLS is expected to become a standard feature in various applications and systems. Advancements may further improve encryption and authentication mechanisms, leading to even more secure DNS resolution.<\/p>"},{"question":"How do proxy servers relate to DNS over TLS (DoT)?","answer":"

                  Proxy servers can act as intermediaries for DNS over TLS, providing an easy way for users to implement secure DNS without individual device configurations. Providers like OneProxy offer DNS over TLS services to enhance your internet experience.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476911\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/468247"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}