{"id":478470,"date":"2023-08-09T09:33:22","date_gmt":"2023-08-09T09:33:22","guid":{"rendered":""},"modified":"2023-09-05T11:16:49","modified_gmt":"2023-09-05T11:16:49","slug":"port-mirroring","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/port-mirroring\/","title":{"rendered":"Ph\u1ea3n chi\u1ebfu c\u1ed5ng"},"content":{"rendered":"

Ph\u1ea3n chi\u1ebfu c\u1ed5ng, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 SPAN (Tr\u00ecnh ph\u00e2n t\u00edch c\u1ed5ng chuy\u1ec3n m\u1ea1ch), l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt gi\u00e1m s\u00e1t m\u1ea1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 sao ch\u00e9p l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng t\u1eeb m\u1ed9t c\u1ed5ng tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng sang m\u1ed9t c\u1ed5ng kh\u00e1c n\u01a1i c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 ph\u00e2n t\u00edch v\u00e0 ki\u1ec3m tra d\u1eef li\u1ec7u. Ph\u01b0\u01a1ng ph\u00e1p m\u1ea1nh m\u1ebd n\u00e0y cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean n\u00e2ng cao kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb v\u1ec1 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp m\u1ea1ng c\u1ee7a h\u1ecd v\u00e0 h\u1ed7 tr\u1ee3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, gi\u00e1m s\u00e1t b\u1ea3o m\u1eadt v\u00e0 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t.<\/p>\n

L\u1ecbch s\u1eed v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a vi\u1ec7c ph\u1ea3n chi\u1ebfu c\u1ed5ng v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 n\u00f3<\/h2>\n

Kh\u00e1i ni\u1ec7m ph\u1ea3n chi\u1ebfu c\u1ed5ng c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 1990 khi c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch m\u1ea1ng b\u1eaft \u0111\u1ea7u tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n c\u00e1c trung t\u00e2m truy\u1ec1n th\u1ed1ng. Ban \u0111\u1ea7u, qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c trong vi\u1ec7c gi\u00e1m s\u00e1t v\u00e0 n\u1eafm b\u1eaft l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng \u0111i qua c\u00e1c c\u1ed5ng c\u1ee5 th\u1ec3. Nhu c\u1ea7u v\u1ec1 m\u1ed9t gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t c\u00e1c m\u1ea1ng chuy\u1ec3n m\u1ea1ch \u0111\u00e3 d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng.<\/p>\n

L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng c\u00f3 th\u1ec3 l\u00e0 do t\u00e0i li\u1ec7u c\u1ee7a L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF) c\u00f3 ti\u00eau \u0111\u1ec1 \u201cC\u01a1 s\u1edf th\u00f4ng tin qu\u1ea3n l\u00fd gi\u00e1m s\u00e1t m\u1ea1ng t\u1eeb xa\u201d (RFC 2819) \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n v\u00e0o th\u00e1ng 5 n\u0103m 2000. T\u00e0i li\u1ec7u n\u00e0y gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m Gi\u00e1m s\u00e1t m\u1ea1ng t\u1eeb xa (RMON) v\u00e0 ph\u00e1c th\u1ea3o c\u00e1c th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u1ea3n \u00e1nh c\u1ed5ng.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Port Mirroring: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n

Ph\u1ea3n chi\u1ebfu c\u1ed5ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c sao ch\u00e9p l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng t\u1eeb m\u1ed9t ho\u1eb7c nhi\u1ec1u c\u1ed5ng ngu\u1ed3n sang c\u1ed5ng \u0111\u00edch \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, n\u01a1i c\u00e1c thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y ph\u00e2n t\u00edch g\u00f3i, h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n x\u00e2m nh\u1eadp (IDS) v\u00e0 \u0111\u1ea7u d\u00f2 m\u1ea1ng, c\u00f3 th\u1ec3 thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u. B\u1eb1ng c\u00e1ch \u0111\u00f3, qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec3u bi\u1ebft quan tr\u1ecdng v\u1ec1 h\u00e0nh vi c\u1ee7a m\u1ea1ng, x\u00e1c \u0111\u1ecbnh c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n, c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt v\u00e0 t\u1eafc ngh\u1ebdn hi\u1ec7u su\u1ea5t.<\/p>\n

C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a ph\u1ea3n chi\u1ebfu c\u1ed5ng: C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ph\u1ea3n chi\u1ebfu c\u1ed5ng<\/h2>\n

Vi\u1ec7c ph\u1ea3n chi\u1ebfu c\u1ed5ng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng c\u00f3 M\u1ea1ch t\u00edch h\u1ee3p d\u00e0nh ri\u00eang cho \u1ee9ng d\u1ee5ng (ASIC) \u0111\u1ec3 qu\u1ea3n l\u00fd ch\u1ee9c n\u0103ng n\u00e0y. Khi t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng \u0111\u01b0\u1ee3c b\u1eadt tr\u00ean m\u1ed9t b\u1ed9 chuy\u1ec3n m\u1ea1ch, ASIC s\u1ebd sao ch\u00e9p c\u00e1c g\u00f3i d\u00e0nh cho c\u1ed5ng ngu\u1ed3n v\u00e0 chuy\u1ec3n ti\u1ebfp ch\u00fang \u0111\u1ebfn c\u1ed5ng \u0111\u00edch. C\u1ed5ng ngu\u1ed3n v\u00e0 c\u1ed5ng \u0111\u00edch c\u00f3 th\u1ec3 n\u1eb1m tr\u00ean c\u00f9ng m\u1ed9t switch ho\u1eb7c tr\u00ean c\u00e1c switch kh\u00e1c nhau, t\u00f9y thu\u1ed9c v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng.<\/p>\n

Th\u00f4ng th\u01b0\u1eddng, ph\u1ea3n chi\u1ebfu c\u1ed5ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ea5u h\u00ecnh th\u00f4ng qua Giao di\u1ec7n d\u00f2ng l\u1ec7nh (CLI) ho\u1eb7c giao di\u1ec7n qu\u1ea3n l\u00fd \u0111\u1ed3 h\u1ecda c\u1ee7a switch. Qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 ch\u1ecdn ph\u1ea3n chi\u1ebfu l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp t\u1eeb c\u00e1c c\u1ed5ng ho\u1eb7c Vlan c\u1ee5 th\u1ec3 \u0111\u1ec3 gi\u00e1m s\u00e1t d\u1eef li\u1ec7u li\u00ean quan m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n

Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a ph\u1ea3n chi\u1ebfu c\u1ed5ng<\/h2>\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a ph\u1ea3n chi\u1ebfu c\u1ed5ng bao g\u1ed3m:<\/p>\n

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  1. \n

    Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u1ea1ng n\u00e2ng cao:<\/strong> Ph\u1ea3n chi\u1ebfu c\u1ed5ng cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean ki\u1ec3m tra l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u1ef1c t\u1ebf \u0111i qua m\u1ea1ng, cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 h\u00e0nh vi c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, c\u00e1ch s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1c vi ph\u1ea1m b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n

  2. \n

    Gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c:<\/strong> B\u1eb1ng c\u00e1ch gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng trong th\u1eddi gian th\u1ef1c, qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 \u1ee9ng ph\u00f3 k\u1ecbp th\u1eddi v\u1edbi c\u00e1c s\u1ef1 c\u1ed1 b\u1ea3o m\u1eadt v\u00e0 s\u1ef1 b\u1ea5t th\u01b0\u1eddng c\u1ee7a m\u1ea1ng.<\/p>\n<\/li>\n

  3. \n

    Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 ch\u1ea9n \u0111o\u00e1n:<\/strong> H\u1ed7 tr\u1ee3 ph\u1ea3n chi\u1ebfu c\u1ed5ng trong vi\u1ec7c ch\u1ea9n \u0111o\u00e1n v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c s\u1ef1 c\u1ed1 m\u1ea1ng, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ea5t g\u00f3i, \u0111\u1ed9 tr\u1ec5 v\u00e0 l\u1ed7i c\u1ea5u h\u00ecnh.<\/p>\n<\/li>\n

  4. \n

    Ph\u00e2n t\u00edch b\u1ea3o m\u1eadt:<\/strong> C\u00e1c c\u00f4ng c\u1ee5 b\u1ea3o m\u1eadt m\u1ea1ng, nh\u01b0 IDS v\u00e0 H\u1ec7 th\u1ed1ng ng\u0103n ch\u1eb7n x\u00e2m nh\u1eadp (IPS), c\u00f3 th\u1ec3 ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n

  5. \n

    T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t:<\/strong> V\u1edbi d\u1eef li\u1ec7u thu \u0111\u01b0\u1ee3c t\u1eeb ph\u1ea3n chi\u1ebfu c\u1ed5ng, qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c t\u1eafc ngh\u1ebdn v\u1ec1 hi\u1ec7u su\u1ea5t, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t m\u1ea1ng t\u1ed1i \u01b0u.<\/p>\n<\/li>\n<\/ol>\n

    C\u00e1c lo\u1ea1i ph\u1ea3n chi\u1ebfu c\u1ed5ng<\/h2>\n

    Ph\u1ea3n chi\u1ebfu c\u1ed5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh ba lo\u1ea1i ch\u00ednh:<\/p>\n\n\n\n\n\n\n\n
    Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
    Ph\u1ea3n chi\u1ebfu c\u1ee5c b\u1ed9<\/td>\nLi\u00ean quan \u0111\u1ebfn vi\u1ec7c ph\u1ea3n \u00e1nh l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp t\u1eeb m\u1ed9t ho\u1eb7c nhi\u1ec1u c\u1ed5ng trong c\u00f9ng m\u1ed9t switch sang m\u1ed9t c\u1ed5ng gi\u00e1m s\u00e1t<\/td>\n<\/tr>\n
    Ph\u1ea3n chi\u1ebfu t\u1eeb xa<\/td>\nPh\u1ea3n \u00e1nh l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp t\u1eeb switch ngu\u1ed3n sang c\u1ed5ng gi\u00e1m s\u00e1t n\u1eb1m tr\u00ean switch kh\u00e1c<\/td>\n<\/tr>\n
    Ph\u1ea3n \u00e1nh \u0111\u00f3ng g\u00f3i<\/td>\nLi\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u00f3ng g\u00f3i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i trong \u0111\u01b0\u1eddng h\u1ea7m GRE (\u0110\u00f3ng g\u00f3i \u0111\u1ecbnh tuy\u1ebfn chung) v\u00e0 chuy\u1ec3n ti\u1ebfp n\u00f3 \u0111\u1ebfn m\u1ed9t c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t b\u00ean ngo\u00e0i b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    C\u00e1ch s\u1eed d\u1ee5ng ph\u1ea3n chi\u1ebfu c\u1ed5ng, v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

    C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng<\/h3>\n
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      Ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng:<\/strong> Ph\u1ea3n chi\u1ebfu c\u1ed5ng cho ph\u00e9p ki\u1ec3m tra v\u00e0 ph\u00e2n t\u00edch g\u00f3i s\u00e2u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c s\u1ef1 c\u1ed1 m\u1ea1ng.<\/p>\n<\/li>\n

    2. \n

      Gi\u00e1m s\u00e1t an ninh:<\/strong> L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c nh\u00e2n b\u1ea3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 b\u1ea3o m\u1eadt \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c m\u1ed1i \u0111e d\u1ecda tr\u00ean m\u1ea1ng.<\/p>\n<\/li>\n

    3. \n

      Ph\u00e2n t\u00edch s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng:<\/strong> Gi\u00e1m s\u00e1t vi\u1ec7c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u1ea1ng v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c t\u1eafc ngh\u1ebdn ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n

    4. \n

      Tu\u00e2n th\u1ee7 v\u00e0 ph\u00e1p y:<\/strong> Thu th\u1eadp v\u00e0 l\u01b0u gi\u1eef d\u1eef li\u1ec7u m\u1ea1ng cho m\u1ee5c \u0111\u00edch tu\u00e2n th\u1ee7 v\u00e0 \u0111i\u1ec1u tra ph\u00e1p y.<\/p>\n<\/li>\n<\/ol>\n

      V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h3>\n
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        T\u00e1c \u0111\u1ed9ng hi\u1ec7u su\u1ea5t:<\/strong> Vi\u1ec7c s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng t\u1eafc ph\u1ea3n chi\u1ebfu c\u00f3 ch\u1ecdn l\u1ecdc v\u00e0 gi\u00e1m s\u00e1t chuy\u00ean d\u1ee5ng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<\/li>\n

      2. \n

        M\u1ed1i quan t\u00e2m v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0:<\/strong> L\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i c\u00f3 th\u1ec3 ch\u1ee9a th\u00f4ng tin nh\u1ea1y c\u1ea3m. Th\u1ef1c hi\u1ec7n ki\u1ec3m so\u00e1t m\u00e3 h\u00f3a v\u00e0 truy c\u1eadp cho c\u1ed5ng \u0111\u00edch.<\/p>\n<\/li>\n

      3. \n

        \u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a c\u1ea5u h\u00ecnh:<\/strong> Vi\u1ec7c \u0111\u1ecbnh c\u1ea5u h\u00ecnh ph\u1ea3n chi\u1ebfu c\u1ed5ng tr\u00ean c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd m\u1ea1ng t\u1eadp trung \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u1ea5u h\u00ecnh.<\/p>\n<\/li>\n<\/ol>\n

        C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n\n\n\n\n\n\n\n\n\n\n
        \u0111\u1eb7c tr\u01b0ng<\/th>\nPh\u1ea3n chi\u1ebfu c\u1ed5ng<\/th>\nM\u1ea1ng TAP (\u0110i\u1ec3m truy c\u1eadp th\u1eed nghi\u1ec7m)<\/th>\n<\/tr>\n<\/thead>\n
        M\u1ee5c \u0111\u00edch<\/td>\nNh\u00e2n r\u1ed9ng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ec3 theo d\u00f5i v\u00e0 ph\u00e2n t\u00edch<\/td>\nSao ch\u00e9p tr\u1ef1c ti\u1ebfp d\u1eef li\u1ec7u m\u1ea1ng<\/td>\n<\/tr>\n
        s\u1ef1 x\u00e2m nh\u1eadp<\/td>\nX\u00e2m ph\u1ea1m t\u1ed1i thi\u1ec3u v\u00ec n\u00f3 kh\u00f4ng c\u1ea3n tr\u1edf lu\u1ed3ng giao th\u00f4ng<\/td>\nHo\u00e0n to\u00e0n th\u1ee5 \u0111\u1ed9ng, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng t\u1edbi giao th\u00f4ng<\/td>\n<\/tr>\n
        Tri\u1ec3n khai<\/td>\nTri\u1ec3n khai trong c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch m\u1ea1ng<\/td>\nM\u1ed9t thi\u1ebft b\u1ecb b\u00ean ngo\u00e0i trong m\u1ea1ng<\/td>\n<\/tr>\n
        Uy\u1ec3n chuy\u1ec3n<\/td>\nGi\u1edbi h\u1ea1n kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i v\u00e0 c\u1ea5u h\u00ecnh<\/td>\nC\u00f3 th\u1ec3 truy c\u1eadp t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111i qua m\u1ed9t li\u00ean k\u1ebft m\u1ea1ng<\/td>\n<\/tr>\n
        T\u00e1c \u0111\u1ed9ng b\u1ea3o m\u1eadt<\/td>\nC\u00f3 kh\u1ea3 n\u0103ng t\u0103ng b\u1ec1 m\u1eb7t t\u1ea5n c\u00f4ng<\/td>\nKh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn an ninh<\/td>\n<\/tr>\n
        Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/td>\nPh\u00e2n t\u00edch th\u1eddi gian th\u1ef1c, gi\u00e1m s\u00e1t b\u1ea3o m\u1eadt, x\u1eed l\u00fd s\u1ef1 c\u1ed1<\/td>\nX\u1eed l\u00fd s\u1ef1 c\u1ed1 m\u1ea1ng, gi\u00e1m s\u00e1t an ninh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn ph\u1ea3n chi\u1ebfu c\u1ea3ng<\/h2>\n

        Khi c\u00e1c m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, t\u1ea7m quan tr\u1ecdng c\u1ee7a kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb v\u00e0 b\u1ea3o m\u1eadt m\u1ea1ng v\u1eabn l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng. C\u00e1c c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn ph\u1ea3n chi\u1ebfu c\u1ed5ng c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n

          \n
        1. \n

          T\u0103ng t\u1ed1c ph\u1ea7n c\u1ee9ng:<\/strong> ASIC v\u00e0 ph\u1ea7n c\u1ee9ng chuy\u00ean d\u1ee5ng \u0111\u1ec3 ph\u1ea3n chi\u1ebfu c\u1ed5ng hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng.<\/p>\n<\/li>\n

        2. \n

          Ph\u00e2n t\u00edch d\u1ef1a tr\u00ean AI:<\/strong> S\u1eed d\u1ee5ng thu\u1eadt to\u00e1n Tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 H\u1ecdc m\u00e1y \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n m\u1ed1i \u0111e d\u1ecda v\u00e0 t\u1ed1i \u01b0u h\u00f3a m\u1ea1ng.<\/p>\n<\/li>\n

        3. \n

          L\u1ecdc n\u00e2ng cao v\u00e0 s\u1eeda \u0111\u1ed5i g\u00f3i:<\/strong> Kh\u1ea3 n\u0103ng n\u00e2ng cao \u0111\u1ec3 l\u1ecdc v\u00e0 s\u1eeda \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c ph\u1ea3n chi\u1ebfu d\u1ef1a tr\u00ean c\u00e1c ti\u00eau ch\u00ed c\u1ee5 th\u1ec3.<\/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 t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng<\/h2>\n

          M\u00e1y ch\u1ee7 proxy v\u00e0 ph\u1ea3n chi\u1ebfu c\u1ed5ng c\u00f3 th\u1ec3 b\u1ed5 sung cho nhau trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t v\u00e0 b\u1ea3o m\u1eadt m\u1ea1ng. B\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p m\u00e1y ch\u1ee7 proxy v\u1edbi t\u00ednh n\u0103ng ph\u1ea3n chi\u1ebfu c\u1ed5ng:<\/p>\n

            \n
          1. \n

            L\u1ecdc n\u1ed9i dung n\u00e2ng cao:<\/strong> M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 l\u1ecdc v\u00e0 ph\u00e2n t\u00edch n\u1ed9i dung web, b\u1ed5 sung cho vi\u1ec7c ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp m\u1ea1ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch ph\u1ea3n chi\u1ebfu c\u1ed5ng.<\/p>\n<\/li>\n

          2. \n

            Gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng:<\/strong> Nh\u1eadt k\u00fd proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tham chi\u1ebfu ch\u00e9o v\u1edbi l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c ph\u1ea3n chi\u1ebfu \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 h\u00e0nh vi c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng Internet.<\/p>\n<\/li>\n

          3. \n

            Ph\u00e1t hi\u1ec7n m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt:<\/strong> Vi\u1ec7c k\u1ebft h\u1ee3p nh\u1eadt k\u00fd m\u00e1y ch\u1ee7 proxy v\u1edbi l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ph\u1ea3n chi\u1ebfu c\u00f3 th\u1ec3 mang l\u1ea1i c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/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 Port Mirroring, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

              \n
            1. RFC 2819 \u2013 C\u01a1 s\u1edf th\u00f4ng tin qu\u1ea3n l\u00fd gi\u00e1m s\u00e1t m\u1ea1ng t\u1eeb xa<\/a><\/li>\n
            2. Cisco: T\u00ecm hi\u1ec3u SPAN, RSPAN v\u00e0 ERSPAN<\/a><\/li>\n
            3. \u0110i\u1ec7n to\u00e1n m\u1ea1ng: Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 ph\u1ea3n chi\u1ebfu c\u1ed5ng<\/a><\/li>\n<\/ol>\n

              H\u00e3y nh\u1edb r\u1eb1ng, ph\u1ea3n chi\u1ebfu c\u1ed5ng l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb d\u00e0nh cho c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng \u0111ang t\u00ecm c\u00e1ch thu \u0111\u01b0\u1ee3c nh\u1eefng hi\u1ec3u bi\u1ebft quan tr\u1ecdng v\u1ec1 m\u1ea1ng c\u1ee7a h\u1ecd, t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a m\u1ea1ng, vi\u1ec7c ph\u1ea3n chi\u1ebfu c\u1ed5ng s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng m\u1ea1ng hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n.<\/p>","protected":false},"featured_media":478471,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478470","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Port Mirroring: Enhancing Network Visibility and Security<\/mark>","faq_items":[{"question":"What is port mirroring, and why is it important for networks?","answer":"

              Port mirroring, also known as SPAN (Switched Port Analyzer), is a network monitoring technique that involves copying network traffic from one port on a network switch to another port for analysis. It provides enhanced visibility into network traffic, aiding in troubleshooting, security monitoring, and performance analysis. Port mirroring is crucial for networks as it allows administrators to identify potential issues, security threats, and performance bottlenecks, ensuring optimal network performance and security.<\/p>"},{"question":"How did port mirroring originate, and when was it first mentioned?","answer":"

              The concept of port mirroring emerged in the early 1990s with the increasing popularity of network switches over traditional hubs. The need to monitor switched networks led to the development of port mirroring. The first mention of port mirroring can be traced back to an Internet Engineering Task Force (IETF) document titled \"Remote Network Monitoring Management Information Base\" (RFC 2819) published in May 2000, which introduced the concept of Remote Network Monitoring (RMON) and outlined the essential components required for port mirroring.<\/p>"},{"question":"How does port mirroring work within network switches?","answer":"

              Port mirroring is implemented within network switches using dedicated Application-Specific Integrated Circuits (ASICs) to manage this functionality. When enabled, the ASIC duplicates packets from source ports and forwards them to a designated destination port for monitoring. This allows administrators to capture and analyze network traffic in real-time, gaining crucial insights into network behavior, security threats, and performance issues.<\/p>"},{"question":"What are the key features of port mirroring?","answer":"

              The key features of port mirroring include enhanced network visibility, real-time monitoring, troubleshooting and diagnostics, security analysis, and performance optimization. Administrators can use port mirroring to gain deep packet inspection and analyze traffic, respond promptly to security incidents, diagnose and resolve network issues, and optimize network performance.<\/p>"},{"question":"What are the different types of port mirroring?","answer":"

              Port mirroring can be classified into three main types:<\/p>

              1. Local Mirroring: Mirrors traffic from one or more ports within the same switch to a monitoring port.<\/li>
              2. Remote Mirroring: Mirrors traffic from a source switch to a monitoring port located on a different switch.<\/li>
              3. Encapsulated Mirroring: Involves encapsulating mirrored traffic in a GRE tunnel and forwarding it to a monitoring tool outside the switch.<\/li><\/ol>"},{"question":"How can port mirroring be used, and what are the common problems and solutions?","answer":"

                Port mirroring can be used for network traffic analysis, security monitoring, bandwidth usage analysis, compliance, and forensics. However, excessive use of port mirroring can impact switch performance, leading to potential security and privacy concerns. To address these issues, administrators should use selective mirroring, dedicated monitoring switches, encryption, and access controls for the destination port.<\/p>"},{"question":"How does port mirroring compare with Network TAPs (Test Access Points)?","answer":"

                Port mirroring involves traffic replication for monitoring and analysis within network switches, while Network TAPs are external devices that directly copy network data. Port mirroring is minimally intrusive, as it doesn't interfere with traffic flow, while TAPs are completely passive. Both have their unique use cases, with port mirroring primarily used for real-time analysis and security monitoring, while TAPs are commonly used for network troubleshooting and monitoring.<\/p>"},{"question":"What are the future technologies related to port mirroring?","answer":"

                The future of port mirroring may involve hardware acceleration with specialized ASICs, AI-driven analysis for automated threat detection, and advanced filtering and packet modification capabilities. These advancements will further enhance network visibility and security in evolving network environments.<\/p>"},{"question":"How can proxy servers be associated with port mirroring?","answer":"

                Proxy servers and port mirroring can work together to enhance network security and monitoring. By integrating proxy servers with port mirroring, administrators can achieve enhanced content filtering, monitor user activity, and detect security threats more comprehensively.<\/p>"},{"question":"Where can I find more information about port mirroring?","answer":"

                For more information about port mirroring, you can refer to the following resources:<\/p>

                1. RFC 2819 - Remote Network Monitoring Management Information Base<\/li>
                2. Cisco: Understanding SPAN, RSPAN, and ERSPAN<\/li>
                3. Network Computing: The Basics of Port Mirroring<\/li><\/ol>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478470","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\/478470\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/478471"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=478470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}