{"id":476879,"date":"2023-08-09T09:04:34","date_gmt":"2023-08-09T09:04:34","guid":{"rendered":""},"modified":"2023-09-05T11:13:37","modified_gmt":"2023-09-05T11:13:37","slug":"dns-attack","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/dns-attack\/","title":{"rendered":"t\u1ea5n c\u00f4ng DNS"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u<\/h2>\n

T\u1ea5n c\u00f4ng DNS (H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n) l\u00e0 m\u1ed9t lo\u1ea1i t\u1ea5n c\u00f4ng m\u1ea1ng nh\u1eafm v\u00e0o H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n, m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng internet. M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a DNS l\u00e0 d\u1ecbch c\u00e1c t\u00ean mi\u1ec1n m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c (v\u00ed d\u1ee5: oneproxy.pro) th\u00e0nh \u0111\u1ecba ch\u1ec9 IP m\u00e0 m\u00e1y c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c (v\u00ed d\u1ee5: 192.0.2.1). B\u1eb1ng c\u00e1ch x\u00e2m ph\u1ea1m DNS, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng h\u1ee3p ph\u00e1p \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i, ch\u1eb7n th\u00f4ng tin li\u00ean l\u1ea1c ho\u1eb7c th\u1ef1c hi\u1ec7n nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng b\u1ea5t ch\u00ednh kh\u00e1c. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn chi ti\u1ebft v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS, l\u1ecbch s\u1eed, lo\u1ea1i, \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n ti\u1ec1m n\u0103ng trong t\u01b0\u01a1ng lai c\u1ee7a ch\u00fang.<\/p>\n

L\u1ecbch s\u1eed v\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean<\/h2>\n

L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 1990 khi Internet v\u1eabn c\u00f2n \u1edf giai \u0111o\u1ea1n s\u01a1 khai. Tuy nhi\u00ean, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u00e1ng k\u1ec3 k\u1ec3 t\u1eeb \u0111\u00f3, v\u1edbi c\u00e1c h\u01b0\u1edbng t\u1ea5n c\u00f4ng m\u1edbi li\u00ean t\u1ee5c xu\u1ea5t hi\u1ec7n. Tr\u1ecdng t\u00e2m ban \u0111\u1ea7u l\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m DNS \u0111\u01a1n gi\u1ea3n, li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay \u0111\u1ed5i b\u1ea3n ghi b\u1ed9 \u0111\u1ec7m DNS \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i. Theo th\u1eddi gian, nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1o \u0111\u01b0\u1eddng h\u1ea7m DNS, khu\u1ebfch \u0111\u1ea1i DNS v\u00e0 t\u1ea5n c\u00f4ng DDoS nh\u1eafm v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng DNS.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 t\u1ea5n c\u00f4ng DNS<\/h2>\n

C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS bao g\u1ed3m nhi\u1ec1u k\u1ef9 thu\u1eadt v\u00e0 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 linh ho\u1ea1t cho t\u1ed9i ph\u1ea1m m\u1ea1ng. M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng DNS ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

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  1. \n

    Gi\u1ea3 m\u1ea1o DNS ho\u1eb7c Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m: Li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u01b0a d\u1eef li\u1ec7u DNS sai v\u00e0o m\u00e1y ch\u1ee7 DNS l\u01b0u v\u00e0o b\u1ed9 \u0111\u1ec7m, d\u1eabn \u0111\u1ebfn chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i.<\/p>\n<\/li>\n

  2. \n

    Khu\u1ebfch \u0111\u1ea1i DNS: Khai th\u00e1c c\u00e1c tr\u00ecnh ph\u00e2n gi\u1ea3i DNS m\u1edf \u0111\u1ec3 g\u1eedi m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ph\u1ea3n h\u1ed3i DNS \u0111\u1ebfn n\u1ea1n nh\u00e2n \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau, g\u00e2y ra cu\u1ed9c t\u1ea5n c\u00f4ng DDoS.<\/p>\n<\/li>\n

  3. \n

    \u0110\u01b0\u1eddng h\u1ea7m DNS: \u0110\u00f3ng g\u00f3i l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng ph\u1ea3i DNS trong c\u00e1c truy v\u1ea5n v\u00e0 ph\u1ea3n h\u1ed3i DNS, cho ph\u00e9p k\u1ebb t\u1ea5n c\u00f4ng b\u1ecf qua c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt.<\/p>\n<\/li>\n

  4. \n

    T\u1ea5n c\u00f4ng DDoS tr\u00ean DNS: \u00c1p \u0111\u1ea3o c\u00e1c m\u00e1y ch\u1ee7 DNS v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng y\u00eau c\u1ea7u kh\u1ed5ng l\u1ed3, g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5 v\u00e0 g\u00e2y kh\u00f3 kh\u0103n cho ng\u01b0\u1eddi d\u00f9ng h\u1ee3p ph\u00e1p khi truy c\u1eadp trang web.<\/p>\n<\/li>\n

  5. \n

    DNS th\u00f4ng l\u01b0\u1ee3ng nhanh: S\u1eed d\u1ee5ng b\u1ed9 \u0111\u1ecba ch\u1ec9 IP thay \u0111\u1ed5i li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi m\u1ed9t t\u00ean mi\u1ec1n \u0111\u1ec3 tr\u00e1nh b\u1ecb ph\u00e1t hi\u1ec7n v\u00e0 l\u01b0u tr\u1eef n\u1ed9i dung b\u1ea5t h\u1ee3p ph\u00e1p.<\/p>\n<\/li>\n<\/ol>\n

    C\u1ea5u tr\u00fac b\u00ean trong v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ea5n c\u00f4ng DNS<\/h2>\n

    C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DNS c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo ph\u01b0\u01a1ng ph\u00e1p c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Tuy nhi\u00ean, quy tr\u00ecnh l\u00e0m vi\u1ec7c chung th\u01b0\u1eddng bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/p>\n

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    1. \n

      trinh s\u00e1t<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng thu th\u1eadp th\u00f4ng tin v\u1ec1 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng DNS c\u1ee7a m\u1ee5c ti\u00eau v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c l\u1ed7 h\u1ed5ng ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n

    2. \n

      V\u0169 kh\u00ed h\u00f3a<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng t\u1ea1o ra c\u00e1c t\u1ea3i tr\u1ecdng ho\u1eb7c khai th\u00e1c DNS \u0111\u1ed9c h\u1ea1i \u0111\u1ec3 s\u1eed d\u1ee5ng trong cu\u1ed9c t\u1ea5n c\u00f4ng.<\/p>\n<\/li>\n

    3. \n

      V\u1eadn chuy\u1ec3n<\/strong>: T\u1ea3i tr\u1ecdng DNS \u0111\u1ed9c h\u1ea1i \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS c\u1ee7a m\u1ee5c ti\u00eau, th\u01b0\u1eddng th\u00f4ng qua vi\u1ec7c \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m ho\u1eb7c ti\u00eam tr\u1ef1c ti\u1ebfp.<\/p>\n<\/li>\n

    4. \n

      Khai th\u00e1c<\/strong>: M\u00e1y ch\u1ee7 DNS m\u1ee5c ti\u00eau b\u1ecb x\u00e2m ph\u1ea1m v\u00e0 ng\u01b0\u1eddi d\u00f9ng b\u1ecb chuy\u1ec3n h\u01b0\u1edbng ho\u1eb7c b\u1ecb t\u1eeb ch\u1ed1i truy c\u1eadp.<\/p>\n<\/li>\n

    5. \n

      Tr\u1ed1n tr\u00e1nh<\/strong>: Nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng tinh vi c\u00f3 th\u1ec3 c\u1ed1 g\u1eafng tr\u00e1nh b\u1ecb ph\u00e1t hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e3 h\u00f3a ho\u1eb7c c\u00e1c k\u1ef9 thu\u1eadt che gi\u1ea5u kh\u00e1c.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a t\u1ea5n c\u00f4ng DNS<\/h2>\n

      C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS s\u1edf h\u1eefu m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn ch\u00fang tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t h\u1ea5p d\u1eabn \u0111\u1ed1i v\u1edbi t\u1ed9i ph\u1ea1m m\u1ea1ng:<\/p>\n

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      1. \n

        c\u00f3 m\u1eb7t kh\u1eafp n\u01a1i<\/strong>: DNS l\u00e0 m\u1ed9t ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng internet, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh \u0111i\u1ec3m d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn.<\/p>\n<\/li>\n

      2. \n

        t\u00e0ng h\u00ecnh<\/strong>: Nhi\u1ec1u cu\u1ed9c t\u1ea5n c\u00f4ng DNS \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u00e9n l\u00fat v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n, cho ph\u00e9p nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n trong th\u1eddi gian d\u00e0i.<\/p>\n<\/li>\n

      3. \n

        khu\u1ebfch \u0111\u1ea1i<\/strong>: C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng khu\u1ebfch \u0111\u1ea1i DNS c\u00f3 th\u1ec3 t\u1ea1o ra l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u00e1ng k\u1ec3, khu\u1ebfch \u0111\u1ea1i t\u00e1c \u0111\u1ed9ng c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng.<\/p>\n<\/li>\n

      4. \n

        Ph\u1ea1m vi to\u00e0n c\u1ea7u<\/strong>: C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS c\u00f3 th\u1ec3 c\u00f3 ph\u1ea1m vi ti\u1ebfp c\u1eadn to\u00e0n c\u1ea7u, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n<\/li>\n

      5. \n

        \u1ea2nh h\u01b0\u1edfng kinh t\u1ebf<\/strong>: C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS c\u00f3 th\u1ec3 g\u00e2y t\u1ed5n th\u1ea5t t\u00e0i ch\u00ednh cho doanh nghi\u1ec7p v\u00e0 c\u00e1 nh\u00e2n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn v\u00e0 th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed.<\/p>\n<\/li>\n<\/ol>\n

        C\u00e1c ki\u1ec3u t\u1ea5n c\u00f4ng DNS<\/h2>\n\n\n\n\n\n\n\n\n\n\n
        Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
        Gi\u1ea3 m\u1ea1o DNS<\/td>\nChuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i b\u1eb1ng c\u00e1ch \u0111\u01b0a d\u1eef li\u1ec7u DNS sai v\u00e0o m\u00e1y ch\u1ee7 DNS l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/td>\n<\/tr>\n
        Khu\u1ebfch \u0111\u1ea1i DNS<\/td>\nS\u1eed d\u1ee5ng c\u00e1c tr\u00ecnh ph\u00e2n gi\u1ea3i DNS m\u1edf \u0111\u1ec3 g\u1eedi ph\u1ea3n h\u1ed3i DNS tr\u00e0n ng\u1eadp m\u1ee5c ti\u00eau, g\u00e2y ra cu\u1ed9c t\u1ea5n c\u00f4ng DDoS.<\/td>\n<\/tr>\n
        \u0110\u01b0\u1eddng h\u1ea7m DNS<\/td>\n\u0110\u00f3ng g\u00f3i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp kh\u00f4ng ph\u1ea3i DNS trong c\u00e1c truy v\u1ea5n v\u00e0 ph\u1ea3n h\u1ed3i DNS, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 v\u01b0\u1ee3t qua c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt.<\/td>\n<\/tr>\n
        T\u1ea5n c\u00f4ng DNSSEC<\/td>\nKhai th\u00e1c c\u00e1c l\u1ed7 h\u1ed5ng trong DNSSEC (Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng b\u1ea3o m\u1eadt DNS) \u0111\u1ec3 x\u00e2m ph\u1ea1m t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u DNS.<\/td>\n<\/tr>\n
        T\u1ea5n c\u00f4ng tra t\u1ea5n b\u1eb1ng n\u01b0\u1edbc DNS<\/td>\nTr\u00ec ho\u00e3n ph\u1ea3n h\u1ed3i DNS \u0111\u1ec3 t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5, l\u00e0m c\u1ea1n ki\u1ec7t t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7.<\/td>\n<\/tr>\n
        T\u1ea5n c\u00f4ng kh\u00f4i ph\u1ee5c DNS<\/td>\nCho ph\u00e9p k\u1ebb t\u1ea5n c\u00f4ng b\u1ecf qua ch\u00ednh s\u00e1ch c\u00f9ng ngu\u1ed3n g\u1ed1c c\u1ee7a tr\u00ecnh duy\u1ec7t web \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng tr\u00e1i ph\u00e9p tr\u00ean c\u00e1c trang web.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        S\u1eed d\u1ee5ng, th\u00e1ch th\u1ee9c v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

        C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 nhi\u1ec1u m\u1ee5c \u0111\u00edch \u0111\u1ed9c h\u1ea1i kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n

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        1. \n

          L\u1eeba \u0111\u1ea3o<\/strong>: Chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web gi\u1ea3 m\u1ea1o \u0111\u1ec3 \u0111\u00e1nh c\u1eafp th\u00f4ng tin nh\u1ea1y c\u1ea3m, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00f4ng tin \u0111\u0103ng nh\u1eadp.<\/p>\n<\/li>\n

        2. \n

          T\u1ea5n c\u00f4ng trung gian<\/strong>: Ch\u1eb7n c\u00e1c truy v\u1ea5n DNS \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u00f4ng qua m\u00e1y ch\u1ee7 do k\u1ebb t\u1ea5n c\u00f4ng ki\u1ec3m so\u00e1t.<\/p>\n<\/li>\n

        3. \n

          T\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 ph\u00e2n t\u00e1n (DDoS)<\/strong>: L\u00e0m qu\u00e1 t\u1ea3i m\u00e1y ch\u1ee7 DNS g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/p>\n<\/li>\n

        4. \n

          L\u1ecdc d\u1eef li\u1ec7u<\/strong>: S\u1eed d\u1ee5ng \u0111\u01b0\u1eddng h\u1ea7m DNS \u0111\u1ec3 v\u01b0\u1ee3t qua b\u1ea3o m\u1eadt m\u1ea1ng v\u00e0 l\u1ea5y c\u1eafp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m.<\/p>\n<\/li>\n<\/ol>\n

          \u0110\u1ec3 gi\u1ea3m thi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS, nhi\u1ec1u gi\u1ea3i ph\u00e1p v\u00e0 ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai, bao g\u1ed3m:<\/p>\n

            \n
          1. \n

            Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng b\u1ea3o m\u1eadt DNS (DNSSEC)<\/strong>: Th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung b\u1eb1ng c\u00e1ch k\u00fd d\u1eef li\u1ec7u DNS, ng\u0103n ch\u1eb7n vi\u1ec7c thao t\u00fang d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

          2. \n

            L\u1ecdc DNS<\/strong>: S\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 l\u1ecdc DNS \u0111\u1ec3 ch\u1eb7n quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c mi\u1ec1n \u0111\u1ed9c h\u1ea1i \u0111\u00e3 bi\u1ebft.<\/p>\n<\/li>\n

          3. \n

            Gi\u1edbi h\u1ea1n t\u1ef7 l\u1ec7<\/strong>: Gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u DNS t\u1eeb c\u00e1c m\u00e1y kh\u00e1ch ri\u00eang l\u1ebb \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng khu\u1ebfch \u0111\u1ea1i DNS.<\/p>\n<\/li>\n

          4. \n

            Ph\u00e2n \u0111o\u1ea1n m\u1ea1ng<\/strong>: T\u00e1ch c\u00e1c m\u00e1y ch\u1ee7 DNS quan tr\u1ecdng kh\u1ecfi c\u00e1c m\u00e1y ch\u1ee7 c\u00f4ng khai \u0111\u1ec3 gi\u1ea3m b\u1ec1 m\u1eb7t t\u1ea5n c\u00f4ng.<\/p>\n<\/li>\n<\/ol>\n

            So s\u00e1nh v\u1edbi c\u00e1c \u0111i\u1ec1u kho\u1ea3n t\u01b0\u01a1ng t\u1ef1<\/h2>\n\n\n\n\n\n\n\n\n\n
            Thu\u1eadt ng\u1eef<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
            T\u1ea5n c\u00f4ng DNS<\/td>\nNh\u1eafm m\u1ee5c ti\u00eau H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng, ch\u1eb7n ho\u1eb7c l\u00e0m gi\u00e1n \u0111o\u1ea1n c\u00e1c d\u1ecbch v\u1ee5 DNS.<\/td>\n<\/tr>\n
            T\u1ea5n c\u00f4ng DDoS<\/td>\nL\u00e0m tr\u00e0n ng\u1eadp m\u1ee5c ti\u00eau c\u00f3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp l\u1edbn \u0111\u1ec3 \u00e1p \u0111\u1ea3o v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c d\u1ecbch v\u1ee5 c\u1ee7a m\u1ee5c ti\u00eau \u0111\u00f3.<\/td>\n<\/tr>\n
            T\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o<\/td>\nL\u1eeba ng\u01b0\u1eddi d\u00f9ng ti\u1ebft l\u1ed9 th\u00f4ng tin nh\u1ea1y c\u1ea3m b\u1eb1ng c\u00e1ch m\u1ea1o danh c\u00e1c th\u1ef1c th\u1ec3 \u0111\u00e1ng tin c\u1eady.<\/td>\n<\/tr>\n
            T\u1ea5n c\u00f4ng MITM<\/td>\nNghe l\u00e9n th\u00f4ng tin li\u00ean l\u1ea1c gi\u1eefa hai b\u00ean m\u00e0 h\u1ecd kh\u00f4ng h\u1ec1 bi\u1ebft.<\/td>\n<\/tr>\n
            Ng\u1ed9 \u0111\u1ed9c DNS<\/td>\nL\u00e0m h\u1ecfng b\u1ed9 \u0111\u1ec7m DNS v\u1edbi d\u1eef li\u1ec7u sai, chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n

            Khi c\u00f4ng ngh\u1ec7 ti\u1ebfn b\u1ed9, c\u00e1c k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS c\u0169ng v\u1eady. Tri\u1ec3n v\u1ecdng trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n

              \n
            1. \n

              Ph\u00e1t hi\u1ec7n m\u1ed1i \u0111e d\u1ecda d\u1ef1a tr\u00ean AI<\/strong>: Tri\u1ec3n khai thu\u1eadt to\u00e1n AI \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS trong th\u1eddi gian th\u1ef1c.<\/p>\n<\/li>\n

            2. \n

              DNS chu\u1ed7i kh\u1ed1i<\/strong>: S\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 blockchain \u0111\u1ec3 t\u1ea1o ra h\u1ec7 th\u1ed1ng DNS phi t\u1eadp trung v\u00e0 ch\u1ed1ng gi\u1ea3 m\u1ea1o.<\/p>\n<\/li>\n

            3. \n

              Ki\u1ebfn tr\u00fac Zero Trust<\/strong>: \u00c1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng tin c\u1eady \u0111\u1ec3 x\u00e1c minh v\u00e0 b\u1ea3o m\u1eadt t\u1ea5t c\u1ea3 c\u00e1c giao d\u1ecbch DNS.<\/p>\n<\/li>\n

            4. \n

              B\u1ea3o m\u1eadt DNS qua HTTPS (DoH)<\/strong>: M\u00e3 h\u00f3a c\u00e1c truy v\u1ea5n DNS \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c nghe l\u00e9n v\u00e0 gi\u1ea3 m\u1ea1o.<\/p>\n<\/li>\n<\/ol>\n

              M\u00e1y ch\u1ee7 proxy v\u00e0 t\u1ea5n c\u00f4ng DNS<\/h2>\n

              C\u00e1c m\u00e1y ch\u1ee7 proxy, gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS. H\u1ecd \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 internet, b\u1ea3o v\u1ec7 \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 b\u1ea3o v\u1ec7 c\u00e1c y\u00eau c\u1ea7u DNS c\u1ee7a h\u1ecd. B\u1eb1ng c\u00e1ch \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u00f4ng qua m\u00e1y ch\u1ee7 proxy, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 tr\u00e1nh ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c m\u1ed1i \u0111e d\u1ecda DNS ti\u1ec1m \u1ea9n v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn c\u1ee7a h\u1ecd.<\/p>\n

              Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n
                \n
              1. B\u1ea3o m\u1eadt DNS: C\u00e1c m\u1ed1i \u0111e d\u1ecda, t\u1ea5n c\u00f4ng v\u00e0 bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3 (Vi\u1ec7n Ti\u00eau chu\u1ea9n v\u00e0 C\u00f4ng ngh\u1ec7 Qu\u1ed1c gia)<\/a><\/li>\n
              2. T\u1ea5n c\u00f4ng khu\u1ebfch \u0111\u1ea1i DNS: C\u00e1ch ng\u0103n ch\u1eb7n (Cloudflare)<\/a><\/li>\n
              3. Kh\u1ea3o s\u00e1t v\u1ec1 b\u1ea3o m\u1eadt DNS: Th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t v\u00e0 H\u01b0\u1edbng nghi\u00ean c\u1ee9u trong t\u01b0\u01a1ng lai (IEEE)<\/a><\/li>\n
              4. Gi\u1ea3i th\u00edch v\u1ec1 DNS qua HTTPS (DoH) (Mozilla)<\/a><\/li>\n<\/ol>\n

                T\u00f3m l\u1ea1i, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DNS g\u00e2y ra r\u1ee7i ro \u0111\u00e1ng k\u1ec3 cho s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o m\u1eadt c\u1ee7a Internet. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng kh\u00e1c nhau v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt th\u00edch h\u1ee3p, doanh nghi\u1ec7p v\u00e0 c\u00e1 nh\u00e2n c\u00f3 th\u1ec3 c\u1ee7ng c\u1ed1 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng DNS c\u1ee7a m\u00ecnh v\u00e0 b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n. C\u00e1c m\u00e1y ch\u1ee7 proxy, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, cung c\u1ea5p th\u00eam m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7, t\u0103ng c\u01b0\u1eddng quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt tr\u1ef1c tuy\u1ebfn cho ng\u01b0\u1eddi d\u00f9ng. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, vi\u1ec7c ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u v\u00e0 c\u1ea3nh gi\u00e1c s\u1ebd l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111i tr\u01b0\u1edbc nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng DNS m\u1ed9t b\u01b0\u1edbc v\u00e0 b\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng truy c\u1eadp c\u1ee7a Internet.<\/p>","protected":false},"featured_media":476880,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476879","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about DNS Attack: A Comprehensive Overview<\/mark>","faq_items":[{"question":"What is a DNS attack, and why is it concerning?","answer":"

                A DNS attack is a type of cyber attack that targets the Domain Name System, a critical part of the internet infrastructure responsible for translating human-readable domain names into machine-readable IP addresses. Attackers can exploit DNS vulnerabilities to redirect users to malicious websites, intercept communications, or conduct other malicious activities, posing significant security risks for individuals and businesses.<\/p>"},{"question":"What is the history of DNS attacks, and when were they first mentioned?","answer":"

                DNS attacks were first mentioned in the early 1990s as the internet was taking shape. The initial focus was on simple DNS cache poisoning attacks. Since then, DNS attacks have evolved, with attackers developing more sophisticated techniques such as DNS tunneling, DNS amplification, and DDoS attacks targeting DNS infrastructure.<\/p>"},{"question":"How do DNS attacks work, and what are their key features?","answer":"

                DNS attacks work by compromising DNS servers and altering DNS data to achieve malicious goals. Attackers can redirect users to fake websites, conduct DDoS attacks, or exfiltrate sensitive data through DNS tunneling. Key features of DNS attacks include their ubiquity, stealthiness, amplification potential, global reach, and economic impact on businesses.<\/p>"},{"question":"What are the different types of DNS attacks?","answer":"

                Several types of DNS attacks exist, including DNS spoofing or cache poisoning, DNS amplification, DNS tunneling, DNSSEC attacks, DNS water torture attacks, and DNS rebinding attacks. Each type has its specific methods and objectives, making DNS attacks versatile tools for cybercriminals.<\/p>"},{"question":"How can businesses and individuals protect themselves against DNS attacks?","answer":"

                Mitigating DNS attacks requires implementing various solutions and best practices. DNS Security Extensions (DNSSEC), DNS filtering, rate limiting, and network segmentation are effective ways to enhance DNS security. Staying updated with the latest security measures and best practices is essential in safeguarding against DNS attacks.<\/p>"},{"question":"What are the future perspectives and technologies related to DNS attacks?","answer":"

                As technology advances, future perspectives on DNS attacks may involve AI-based threat detection, blockchain DNS for increased decentralization, zero trust architecture for enhanced security, and secure DNS over HTTPS (DoH) for encrypted DNS queries.<\/p>"},{"question":"How can proxy servers like OneProxy be associated with DNS attack protection?","answer":"

                Proxy servers, like OneProxy, play a crucial role in protecting users against DNS attacks. By acting as intermediaries, they shield users' IP addresses and protect DNS requests, reducing the risk of direct exposure to potential threats. Proxy servers can significantly enhance online security and privacy for users, making them a valuable tool to counter DNS attacks.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476879","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\/476879\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476880"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}