{"id":476935,"date":"2023-08-09T09:05:36","date_gmt":"2023-08-09T09:05:36","guid":{"rendered":""},"modified":"2023-09-05T11:13:43","modified_gmt":"2023-09-05T11:13:43","slug":"dns-server","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/dns-server\/","title":{"rendered":"m\u00e1y ch\u1ee7 DNS"},"content":{"rendered":"

M\u00e1y ch\u1ee7 H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (DNS) l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng internet, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c d\u1ecbch c\u00e1c t\u00ean mi\u1ec1n m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c sang \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ch\u00fang. N\u00f3 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp c\u00e1c trang web v\u00e0 c\u00e1c t\u00e0i nguy\u00ean internet kh\u00e1c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c t\u00ean mi\u1ec1n d\u1ec5 nh\u1edb, nh\u01b0 \u201coneproxy.pro,\u201d thay v\u00ec c\u00e1c \u0111\u1ecba ch\u1ec9 IP d\u1ea1ng s\u1ed1 ph\u1ee9c t\u1ea1p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o l\u1ecbch s\u1eed, c\u1ea5u tr\u00fac b\u00ean trong, lo\u1ea1i, c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 tri\u1ec3n v\u1ecdng trong t\u01b0\u01a1ng lai c\u1ee7a m\u00e1y ch\u1ee7 DNS, t\u1eadp trung v\u00e0o m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 v\u1edbi nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy, OneProxy.<\/p>\n

L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a m\u00e1y ch\u1ee7 DNS v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n

H\u1ec7 th\u1ed1ng DNS c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a ARPANET, ti\u1ec1n th\u00e2n c\u1ee7a Internet hi\u1ec7n \u0111\u1ea1i. V\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1970, nhu c\u1ea7u v\u1ec1 h\u1ec7 th\u1ed1ng \u0111\u1eb7t t\u00ean ph\u00e2n t\u00e1n v\u00e0 ph\u00e2n c\u1ea5p tr\u1edf n\u00ean r\u00f5 r\u00e0ng khi s\u1ed1 l\u01b0\u1ee3ng m\u00e1y ch\u1ee7 tr\u00ean m\u1ea1ng t\u0103ng l\u00ean nhanh ch\u00f3ng. \u0110\u1eb7c t\u1ea3 DNS \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n v\u00e0o n\u0103m 1983 trong RFC 882 v\u00e0 RFC 883 b\u1edfi Paul Mockapetris, ng\u01b0\u1eddi th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 \u201ccha \u0111\u1ebb c\u1ee7a DNS\u201d. C\u00f4ng vi\u1ec7c c\u1ee7a \u00f4ng \u0111\u00e3 \u0111\u1eb7t n\u1ec1n m\u00f3ng cho h\u1ec7 th\u1ed1ng m\u00e0 ch\u00fang ta s\u1eed d\u1ee5ng ng\u00e0y nay.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 m\u00e1y ch\u1ee7 DNS<\/h2>\n

DNS ho\u1ea1t \u0111\u1ed9ng theo m\u00f4 h\u00ecnh m\u00e1y kh\u00e1ch-m\u00e1y ch\u1ee7, trong \u0111\u00f3 m\u00e1y kh\u00e1ch (th\u01b0\u1eddng l\u00e0 tr\u00ecnh duy\u1ec7t web ho\u1eb7c \u1ee9ng d\u1ee5ng) y\u00eau c\u1ea7u ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n v\u00e0 m\u00e1y ch\u1ee7 DNS ph\u1ea3n h\u1ed3i b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m m\u1ed9t s\u1ed1 b\u01b0\u1edbc:<\/p>\n

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  1. \n

    B\u1eaft \u0111\u1ea7u truy v\u1ea5n<\/strong>: Khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp t\u00ean mi\u1ec1n v\u00e0o tr\u00ecnh duy\u1ec7t c\u1ee7a h\u1ecd, tr\u00ecnh duy\u1ec7t s\u1ebd g\u1eedi truy v\u1ea5n DNS \u0111\u1ebfn tr\u00ecnh ph\u00e2n gi\u1ea3i DNS c\u1ee5c b\u1ed9, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi ISP ho\u1eb7c tr\u00ecnh ph\u00e2n gi\u1ea3i DNS c\u1ee7a b\u00ean th\u1ee9 ba nh\u01b0 Google Public DNS.<\/p>\n<\/li>\n

  2. \n

    \u0110\u1ed9 ph\u00e2n gi\u1ea3i \u0111\u1ec7 quy<\/strong>: N\u1ebfu tr\u00ecnh ph\u00e2n gi\u1ea3i c\u1ee5c b\u1ed9 kh\u00f4ng c\u00f3 \u00e1nh x\u1ea1 c\u1ea7n thi\u1ebft trong b\u1ed9 \u0111\u1ec7m, n\u00f3 s\u1ebd truy v\u1ea5n m\u00e1y ch\u1ee7 DNS g\u1ed1c \u0111\u1ec3 t\u00ecm m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 mi\u1ec1n c\u1ea5p cao nh\u1ea5t (TLD) c\u1ee7a mi\u1ec1n \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n<\/li>\n

  3. \n

    \u0110\u1ed9 ph\u00e2n gi\u1ea3i l\u1eb7p l\u1ea1i<\/strong>: Sau \u0111\u00f3, tr\u00ecnh ph\u00e2n gi\u1ea3i c\u1ee5c b\u1ed9 s\u1ebd truy v\u1ea5n m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh TLD, h\u01b0\u1edbng n\u00f3 \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u1ecbnh danh c\u00f3 th\u1ea9m quy\u1ec1n c\u1ee7a mi\u1ec1n. C\u00e1c m\u00e1y ch\u1ee7 c\u00f3 th\u1ea9m quy\u1ec1n n\u00e0y gi\u1eef b\u1ea3n \u0111\u1ed3 cu\u1ed1i c\u00f9ng c\u1ee7a mi\u1ec1n t\u1edbi \u0111\u1ecba ch\u1ec9 IP c\u1ee7a n\u00f3.<\/p>\n<\/li>\n

  4. \n

    Ph\u1ea3n \u1ee9ng<\/strong>: M\u00e1y ch\u1ee7 t\u00ean c\u00f3 th\u1ea9m quy\u1ec1n ph\u1ea3n h\u1ed3i tr\u00ecnh ph\u00e2n gi\u1ea3i c\u1ee5c b\u1ed9 b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP, sau \u0111\u00f3 \u0111\u01b0\u1ee3c tr\u00ecnh ph\u00e2n gi\u1ea3i c\u1ee5c b\u1ed9 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ec3 s\u1eed d\u1ee5ng trong t\u01b0\u01a1ng lai. \u0110\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c g\u1eedi l\u1ea1i cho kh\u00e1ch h\u00e0ng, cho ph\u00e9p n\u00f3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i v\u1edbi trang web ho\u1eb7c t\u00e0i nguy\u00ean mong mu\u1ed1n.<\/p>\n<\/li>\n<\/ol>\n

    C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a m\u00e1y ch\u1ee7 DNS. M\u00e1y ch\u1ee7 DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n

    M\u00e1y ch\u1ee7 DNS bao g\u1ed3m m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n:<\/p>\n

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    1. \n

      V\u00f9ng DNS<\/strong>: D\u1eef li\u1ec7u DNS \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c th\u00e0nh c\u00e1c v\u00f9ng, m\u1ed7i v\u00f9ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t ph\u1ea7n c\u1ee5 th\u1ec3 c\u1ee7a kh\u00f4ng gian t\u00ean mi\u1ec1n. C\u00e1c v\u00f9ng n\u00e0y \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1edfi c\u00e1c m\u00e1y ch\u1ee7 t\u00ean c\u00f3 th\u1ea9m quy\u1ec1n.<\/p>\n<\/li>\n

    2. \n

      M\u00e1y ch\u1ee7 t\u00ean c\u00f3 th\u1ea9m quy\u1ec1n<\/strong>: C\u00e1c m\u00e1y ch\u1ee7 n\u00e0y l\u01b0u gi\u1eef c\u00e1c b\u1ea3n ghi DNS (A, AAAA, CNAME, MX, v.v.) cho c\u00e1c mi\u1ec1n m\u00e0 ch\u00fang ch\u1ecbu tr\u00e1ch nhi\u1ec7m. H\u1ecd cung c\u1ea5p c\u00e2u tr\u1ea3 l\u1eddi cu\u1ed1i c\u00f9ng trong qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i DNS.<\/p>\n<\/li>\n

    3. \n

      B\u1ed9 gi\u1ea3i quy\u1ebft \u0111\u1ec7 quy<\/strong>: C\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tr\u00ecnh ph\u00e2n gi\u1ea3i b\u1ed9 nh\u1edb \u0111\u1ec7m, c\u00e1c m\u00e1y ch\u1ee7 n\u00e0y ho\u1ea1t \u0111\u1ed9ng thay m\u1eb7t cho m\u00e1y kh\u00e1ch. H\u1ecd truy v\u1ea5n c\u00e1c m\u00e1y ch\u1ee7 t\u00ean c\u00f3 th\u1ea9m quy\u1ec1n \u0111\u1ec3 ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n v\u00e0 l\u01b0u tr\u1eef k\u1ebft qu\u1ea3 \u0111\u1ec3 t\u0103ng t\u1ed1c c\u00e1c truy v\u1ea5n trong t\u01b0\u01a1ng lai.<\/p>\n<\/li>\n

    4. \n

      M\u00e1y ch\u1ee7 DNS g\u1ed1c<\/strong>: C\u00e1c m\u00e1y ch\u1ee7 n\u00e0y t\u1ea1o th\u00e0nh ph\u1ea7n tr\u00ean c\u00f9ng c\u1ee7a h\u1ec7 th\u1ed1ng ph\u00e2n c\u1ea5p DNS. C\u00f3 13 b\u1ed9 m\u00e1y ch\u1ee7 g\u1ed1c \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. H\u1ecd cung c\u1ea5p c\u00e1c gi\u1edbi thi\u1ec7u \u0111\u1ebfn m\u00e1y ch\u1ee7 t\u00ean TLD trong qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i DNS.<\/p>\n<\/li>\n<\/ol>\n

      Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a m\u00e1y ch\u1ee7 DNS<\/h2>\n

      M\u00e1y ch\u1ee7 DNS cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh gi\u00fap Internet c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0 hi\u1ec7u qu\u1ea3:<\/p>\n

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        Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: DNS l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n, \u0111\u1ea3m b\u1ea3o n\u00f3 c\u00f3 th\u1ec3 x\u1eed l\u00fd s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n di\u1ec5n ra m\u1ed7i gi\u00e2y tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<\/li>\n

      2. \n

        D\u01b0<\/strong>: M\u00e1y ch\u1ee7 DNS \u0111\u01b0\u1ee3c sao ch\u00e9p tr\u00ean nhi\u1ec1u v\u1ecb tr\u00ed, \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 \u0111\u1ed9 tin c\u1eady cao.<\/p>\n<\/li>\n

      3. \n

        B\u1ed9 nh\u1edb \u0111\u1ec7m<\/strong>: Tr\u00ecnh ph\u00e2n gi\u1ea3i \u0111\u1ec7 quy l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m c\u00e1c ph\u1ea3n h\u1ed3i DNS, gi\u1ea3m t\u1ea3i cho c\u00e1c m\u00e1y ch\u1ee7 c\u00f3 th\u1ea9m quy\u1ec1n v\u00e0 c\u1ea3i thi\u1ec7n th\u1eddi gian ph\u1ea3n h\u1ed3i.<\/p>\n<\/li>\n

      4. \n

        C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: DNS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u00e2n b\u1eb1ng t\u1ea3i b\u1eb1ng c\u00e1ch ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng gi\u1eefa nhi\u1ec1u m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi m\u1ed9t t\u00ean mi\u1ec1n.<\/p>\n<\/li>\n

      5. \n

        Anycast<\/strong>: Vi\u1ec7c tri\u1ec3n khai DNS Anycast s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t \u0111\u1ecba ch\u1ec9 IP cho nhi\u1ec1u m\u00e1y ch\u1ee7 DNS, h\u01b0\u1edbng m\u00e1y kh\u00e1ch \u0111\u1ebfn m\u00e1y ch\u1ee7 kh\u1ea3 d\u1ee5ng g\u1ea7n nh\u1ea5t d\u1ef1a tr\u00ean \u0111\u1ecbnh tuy\u1ebfn.<\/p>\n<\/li>\n<\/ol>\n

        C\u00e1c lo\u1ea1i m\u00e1y ch\u1ee7 DNS<\/h2>\n

        C\u00f3 m\u1ed9t s\u1ed1 lo\u1ea1i m\u00e1y ch\u1ee7 DNS d\u1ef1a tr\u00ean m\u1ee5c \u0111\u00edch v\u00e0 c\u1ea5u h\u00ecnh c\u1ee7a ch\u00fang:<\/p>\n\n\n\n\n\n\n\n\n\n\n
        Lo\u1ea1i m\u00e1y ch\u1ee7 DNS<\/strong><\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/strong><\/th>\n<\/tr>\n<\/thead>\n
        Tr\u00ecnh gi\u1ea3i quy\u1ebft \u0111\u1ec7 quy<\/td>\nGi\u1ea3i quy\u1ebft c\u00e1c th\u1eafc m\u1eafc thay m\u1eb7t cho kh\u00e1ch h\u00e0ng.<\/td>\n<\/tr>\n
        M\u00e1y ch\u1ee7 c\u00f3 th\u1ea9m quy\u1ec1n<\/td>\nGi\u1eef c\u00e1c b\u1ea3n ghi DNS cho m\u1ed9t t\u00ean mi\u1ec1n.<\/td>\n<\/tr>\n
        Ng\u01b0\u1eddi giao nh\u1eadn<\/td>\nChuy\u1ec3n ti\u1ebfp truy v\u1ea5n t\u1edbi c\u00e1c m\u00e1y ch\u1ee7 DNS kh\u00e1c.<\/td>\n<\/tr>\n
        M\u00e1y ch\u1ee7 DNS g\u1ed1c<\/td>\nQu\u1ea3n l\u00fd g\u1ed1c c\u1ee7a h\u1ec7 th\u1ed1ng ph\u00e2n c\u1ea5p DNS.<\/td>\n<\/tr>\n
        M\u00e1y ch\u1ee7 DNS TLD<\/td>\nX\u1eed l\u00fd c\u00e1c \u0111\u1ed9 ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t.<\/td>\n<\/tr>\n
        M\u00e1y ch\u1ee7 ph\u1ee5<\/td>\nHo\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ea3n sao l\u01b0u cho m\u1ed9t m\u00e1y ch\u1ee7 c\u00f3 th\u1ea9m quy\u1ec1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        C\u00e1ch s\u1eed d\u1ee5ng DNS server, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n

        C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 DNS:<\/h3>\n
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        1. \n

          Duy\u1ec7t Internet<\/strong>: DNS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ecbch t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP khi truy c\u1eadp c\u00e1c trang web.<\/p>\n<\/li>\n

        2. \n

          G\u1eedi email<\/strong>: DNS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ecm c\u00e1c m\u00e1y ch\u1ee7 th\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd vi\u1ec7c g\u1eedi email cho m\u1ed9t mi\u1ec1n (b\u1ea3n ghi MX).<\/p>\n<\/li>\n

        3. \n

          C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: DNS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng gi\u1eefa nhi\u1ec1u \u0111\u1ecba ch\u1ec9 IP m\u00e1y ch\u1ee7, \u0111\u1ea3m b\u1ea3o ph\u00e2n ph\u1ed1i t\u1ea3i hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n

        4. \n

          Chuy\u1ec3n h\u01b0\u1edbng t\u00ean mi\u1ec1n<\/strong>: DNS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng t\u00ean mi\u1ec1n n\u00e0y sang t\u00ean mi\u1ec1n kh\u00e1c b\u1eb1ng b\u1ea3n ghi CNAME.<\/p>\n<\/li>\n<\/ol>\n

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

            L\u1ed7i ph\u00e2n gi\u1ea3i DNS<\/strong>: N\u1ebfu m\u00e1y ch\u1ee7 DNS kh\u00f4ng ph\u1ea3n h\u1ed3i, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 truy c\u1eadp trang web. D\u1ef1 ph\u00f2ng v\u00e0 tri\u1ec3n khai nhi\u1ec1u m\u00e1y ch\u1ee7 DNS s\u1ebd gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<\/li>\n

          2. \n

            Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m DNS<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a m\u00e1y ch\u1ee7 DNS c\u00f3 ch\u1ee9a d\u1eef li\u1ec7u \u0111\u1ed9c h\u1ea1i. DNSSEC (Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng b\u1ea3o m\u1eadt DNS) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00eam ch\u1eef k\u00fd m\u1eadt m\u00e3 v\u00e0o d\u1eef li\u1ec7u DNS, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

          3. \n

            T\u1ea5n c\u00f4ng khu\u1ebfch \u0111\u1ea1i DNS<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 DNS \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ea5u h\u00ecnh sai \u0111\u1ec3 khu\u1ebfch \u0111\u1ea1i v\u00e0 ph\u1ea3n \u00e1nh c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS. C\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t truy c\u1eadp v\u00e0 v\u1ec7 sinh m\u1ea1ng th\u00edch h\u1ee3p l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u01b0 v\u1eady.<\/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\n\n\n\n\n\n\n\n\n
            \u0111\u1eb7c tr\u01b0ng<\/strong><\/th>\nM\u00e1y ch\u1ee7 DNS<\/strong><\/th>\nDHCP server<\/strong><\/th>\n<\/tr>\n<\/thead>\n
            Ch\u1ee9c n\u0103ng<\/td>\nPh\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n th\u00e0nh IP<\/td>\nG\u00e1n \u0111\u1ecba ch\u1ec9 IP cho kh\u00e1ch h\u00e0ng<\/td>\n<\/tr>\n
            Giao ti\u1ebfp<\/td>\nS\u1eed d\u1ee5ng giao th\u1ee9c DNS (UDP\/TCP)<\/td>\nS\u1eed d\u1ee5ng giao th\u1ee9c DHCP (UDP)<\/td>\n<\/tr>\n
            L\u1edbp m\u1ea1ng<\/td>\nHo\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp \u1ee9ng d\u1ee5ng<\/td>\nHo\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u v\u00e0 l\u1edbp m\u1ea1ng<\/td>\n<\/tr>\n
            Ki\u00ean tr\u00ec<\/td>\nKh\u00f4ng qu\u1ed1c t\u1ecbch<\/td>\nKh\u00f4ng qu\u1ed1c t\u1ecbch<\/td>\n<\/tr>\n
            Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh<\/td>\n\u0110\u1ed9 ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n<\/td>\nC\u1ea5p \u0111\u1ecba ch\u1ec9 IP cho kh\u00e1ch h\u00e0ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            Tri\u1ec3n v\u1ecdng v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS<\/h2>\n

            T\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 m\u00e1y ch\u1ee7 DNS \u0111\u1ea7y h\u1ee9a h\u1eb9n v\u1edbi nh\u1eefng n\u1ed7 l\u1ef1c kh\u00f4ng ng\u1eebng nh\u1eb1m n\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt, quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 hi\u1ec7u su\u1ea5t. M\u1ed9t s\u1ed1 ph\u00e1t tri\u1ec3n ch\u00ednh bao g\u1ed3m:<\/p>\n

              \n
            1. \n

              DNS qua HTTPS (DoH)<\/strong>: M\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n DNS qua HTTPS \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c nghe l\u00e9n v\u00e0 gi\u1ea3 m\u1ea1o d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

            2. \n

              DNS qua TLS (DoT)<\/strong>: M\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n DNS qua TLS \u0111\u1ec3 th\u00eam l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung.<\/p>\n<\/li>\n

            3. \n

              \u00c1p d\u1ee5ng IPv6<\/strong>: Khi vi\u1ec7c \u00e1p d\u1ee5ng IPv6 ng\u00e0y c\u00e0ng t\u0103ng, c\u00e1c m\u00e1y ch\u1ee7 DNS s\u1ebd \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u00e1nh x\u1ea1 c\u00e1c \u0111\u1ecba ch\u1ec9 IPv6 d\u00e0i h\u01a1n t\u1edbi c\u00e1c t\u00ean mi\u1ec1n.<\/p>\n<\/li>\n

            4. \n

              Th\u00f4ng qua DNSSEC<\/strong>: Vi\u1ec7c \u00e1p d\u1ee5ng DNSSEC r\u1ed9ng r\u00e3i h\u01a1n s\u1ebd \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 x\u00e1c th\u1ef1c c\u1ee7a d\u1eef li\u1ec7u DNS.<\/p>\n<\/li>\n<\/ol>\n

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

              M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 b\u1ed5 sung cho m\u00e1y ch\u1ee7 DNS theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau:<\/p>\n

                \n
              1. \n

                L\u1ecdc DNS<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng DNS \u0111\u1ec3 l\u1ecdc v\u00e0 ch\u1eb7n quy\u1ec1n truy c\u1eadp v\u00e0o m\u1ed9t s\u1ed1 trang web nh\u1ea5t \u0111\u1ecbnh d\u1ef1a tr\u00ean t\u00ean mi\u1ec1n c\u1ee7a ch\u00fang.<\/p>\n<\/li>\n

              2. \n

                L\u1ecdc n\u1ed9i dung<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 l\u1ecdc n\u1ed9i dung d\u1ef1a tr\u00ean t\u00ean DNS, ch\u1eb7n n\u1ed9i dung \u0111\u1ed9c h\u1ea1i ho\u1eb7c kh\u00f4ng mong mu\u1ed1n.<\/p>\n<\/li>\n

              3. \n

                C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng DNS \u0111\u1ec3 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng gi\u1eefa nhi\u1ec1u m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3.<\/p>\n<\/li>\n

              4. \n

                B\u1ed9 nh\u1edb \u0111\u1ec7m DNS<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 l\u01b0u c\u00e1c ph\u1ea3n h\u1ed3i DNS v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m, gi\u1ea3m nhu c\u1ea7u ph\u00e2n gi\u1ea3i DNS l\u1eb7p \u0111i l\u1eb7p l\u1ea1i.<\/p>\n<\/li>\n<\/ol>\n

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

                \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 m\u00e1y ch\u1ee7 DNS, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

                  \n
                1. Gi\u1ea3i th\u00edch v\u1ec1 DNS \u2013 DNS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li>\n
                2. DNSSEC \u2013 Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng b\u1ea3o m\u1eadt h\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n<\/a><\/li>\n
                3. Gi\u1edbi thi\u1ec7u v\u1ec1 DHCP<\/a><\/li>\n<\/ol>\n

                  T\u00f3m l\u1ea1i, m\u00e1y ch\u1ee7 DNS l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a Internet, cho ph\u00e9p ph\u00e2n gi\u1ea3i v\u00e0 truy c\u1eadp t\u00ean mi\u1ec1n m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, c\u00e1c m\u00e1y ch\u1ee7 DNS s\u1ebd ti\u1ebfp t\u1ee5c th\u00edch \u1ee9ng, \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m Internet an to\u00e0n, hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng c\u0169ng nh\u01b0 doanh nghi\u1ec7p. C\u00e1c m\u00e1y ch\u1ee7 proxy, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, c\u00f3 th\u1ec3 n\u00e2ng cao ch\u1ee9c n\u0103ng DNS, b\u1ed5 sung th\u00eam m\u1ed9t l\u1edbp ki\u1ec3m so\u00e1t v\u00e0 b\u1ea3o m\u1eadt cho ng\u01b0\u1eddi d\u00f9ng c\u1ee7a h\u1ecd.<\/p>","protected":false},"featured_media":476936,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476935","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about DNS Server: An In-depth Overview<\/mark>","faq_items":[{"question":"What is a DNS server, and how does it work?<\/strong>","answer":"

                  A DNS server is a critical component of the internet infrastructure that translates human-readable domain names (like \"oneproxy.pro\") into corresponding IP addresses. It enables users to access websites and online resources using easy-to-remember domain names. The DNS server operates on a client-server model, where clients (web browsers or applications) request domain name resolutions, and DNS servers respond with the corresponding IP addresses. The process involves querying recursive resolvers, root DNS servers, TLD name servers, and authoritative name servers to obtain the final IP address for the requested domain.<\/p>"},{"question":"Who invented the DNS server, and when was it first introduced?<\/strong>","answer":"

                  The DNS system was invented by Paul Mockapetris and introduced in the late 1970s during the early days of the ARPANET, the precursor to the modern internet. Paul Mockapetris is often regarded as the \"father of DNS.\" The first DNS specification was published in 1983 in RFC 882 and RFC 883.<\/p>"},{"question":"What are the key features of DNS servers?<\/strong>","answer":"

                  DNS servers offer several key features that make the internet accessible and efficient. Some of these features include scalability to handle a massive number of domain name resolutions, redundancy through replication across multiple locations for high availability, caching to speed up future queries, load balancing to distribute traffic among multiple servers, and the use of anycast to direct clients to the nearest available server based on routing.<\/p>"},{"question":"What are the types of DNS servers?<\/strong>","answer":"

                  There are several types of DNS servers based on their purpose and configuration. These include recursive resolvers, authoritative servers, forwarders, root DNS servers, TLD DNS servers, and secondary servers. Each type serves a specific function in the DNS resolution process.<\/p>"},{"question":"How can DNS servers be used in conjunction with proxy servers?<\/strong>","answer":"

                  Proxy servers can complement DNS servers in various ways. They can use DNS for filtering and blocking access to certain websites based on domain names (DNS filtering). Proxy servers can also filter content based on DNS names, blocking malicious or unwanted content (content filtering). Additionally, proxy servers can utilize DNS for load balancing, caching DNS responses, and improving overall performance.<\/p>"},{"question":"What are the future prospects for DNS server technology?<\/strong>","answer":"

                  The future of DNS server technology looks promising, with ongoing efforts to enhance security, privacy, and performance. Some developments include DNS over HTTPS (DoH) and DNS over TLS (DoT) to encrypt DNS queries, wider adoption of DNSSEC for data integrity, and support for IPv6 as its adoption increases.<\/p>"},{"question":"How do DNS servers address common problems and security issues?<\/strong>","answer":"

                  DNS servers address common problems and security issues through redundancy and replication to prevent single points of failure, the use of DNSSEC to add cryptographic signatures for data integrity, proper network hygiene and access control to prevent DNS cache poisoning and amplification attacks, and regular updates and patches to fix vulnerabilities and ensure security.<\/p>"},{"question":"How can I use DNS servers for load balancing and improved website performance?<\/strong>","answer":"

                  DNS servers can be configured to perform load balancing by distributing traffic among multiple server IP addresses associated with a single domain. This improves website performance by evenly distributing the load, preventing overload on a single server, and ensuring better response times for users.<\/p>"},{"question":"How do DNS servers contribute to internet security and privacy?<\/strong>","answer":"

                  DNS servers contribute to internet security and privacy through DNSSEC, which ensures data integrity and authenticity by adding cryptographic signatures to DNS data. Additionally, DNS over HTTPS (DoH) and DNS over TLS (DoT) encrypt DNS queries, preventing eavesdropping and data tampering by malicious actors.<\/p>"},{"question":"How can I learn more about DNS servers and related topics?<\/strong>","answer":"

                  For more in-depth information about DNS servers, you can refer to resources like \"DNS Explained - How Does DNS Work?\" from Cloudflare, \"DNSSEC - Domain Name System Security Extensions\" from ICANN, and \"Introduction to DHCP\" from Cisco. These resources will provide additional insights and knowledge about DNS and related technologies.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476935","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\/476935\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476936"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}