{"id":14268,"date":"2024-09-26T22:58:41","date_gmt":"2024-09-26T16:58:41","guid":{"rendered":"https:\/\/dtasiagroup.com\/how-to-optimize-netflow-for-splunk\/"},"modified":"2024-11-11T16:10:17","modified_gmt":"2024-11-11T10:10:17","slug":"cach-toi-uu-hoa-netflow-cho-splunk","status":"publish","type":"post","link":"https:\/\/dtasiagroup.com\/vi\/cach-toi-uu-hoa-netflow-cho-splunk\/","title":{"rendered":"C\u00e1ch t\u1ed1i \u01b0u h\u00f3a NetFlow cho Splunk"},"content":{"rendered":"

Kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a network v\u00e0 ph\u00e2n t\u00edch n\u00e2ng cao v\u1edbi h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch t\u1ed1i \u01b0u h\u00f3a NetFlow cho Splunk. Trong blog n\u00e0y, ch\u00fang t\u00f4i s\u1ebd g\u1ecdi chung t\u1ea5t c\u1ea3 c\u00e1c giao th\u1ee9c lu\u1ed3ng d\u1eef li\u1ec7u nh\u01b0 sFlow, JFlow, IPFIX v\u00e0 nh\u1eadt k\u00fd l\u01b0u l\u01b0\u1ee3ng \u0111\u00e1m m\u00e2y l\u00e0 \u2018NetFlow\u2019. H\u00e3y t\u00ecm hi\u1ec3u c\u00e1ch khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u1ea1ng v\u01b0\u1ee3t tr\u1ed9i v\u00e0 ph\u00e2n t\u00edch chuy\u00ean s\u00e2u. Ch\u00fang t\u00f4i s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n t\u1eebng b\u01b0\u1edbc m\u1ed9t, t\u1eeb vi\u1ec7c k\u00edch ho\u1ea1t NetFlow tr\u00ean c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ebfn vi\u1ec7c t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi Splunk. Th\u00eam v\u00e0o \u0111\u00f3, ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p c\u00e1c m\u1eb9o kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 c\u00e1ch th\u1ef1c hi\u1ec7n t\u1ed1t nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t, gi\u00fap b\u1ea1n khai th\u00e1c t\u1ed1i \u0111a gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng (network traffic data). S\u1eb5n s\u00e0ng n\u00e2ng cao kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch network c\u1ee7a b\u1ea1n!<\/p>\n

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NetFlow l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 quan tr\u1ecdng?<\/h3>\n

NetFlow l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng trong gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch m\u1ea1ng, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng IP gi\u00fap c\u00e1c chuy\u00ean gia c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt m\u1ea1ng. Th\u00f4ng qua vi\u1ec7c xu\u1ea5t c\u00e1c b\u1ea3n ghi l\u01b0u l\u01b0\u1ee3ng\u2014bao g\u1ed3m c\u00e1c si\u00eau d\u1eef li\u1ec7u chi ti\u1ebft v\u1ec1 l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng nh\u01b0 \u0111\u1ecba ch\u1ec9 IP ngu\u1ed3n v\u00e0 \u0111\u00edch, s\u1ed1 c\u1ed5ng, lo\u1ea1i giao th\u1ee9c, v\u00e0 nhi\u1ec1u th\u00f4ng tin kh\u00e1c\u2014NetFlow cung c\u1ea5p cho c\u00e1c k\u1ef9 s\u01b0 c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 m\u00f4 h\u00ecnh l\u01b0u l\u01b0\u1ee3ng, m\u1ee9c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng (Bandwidth) v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u1ee9ng d\u1ee5ng. Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb s\u00e2u s\u1eafc n\u00e0y cho ph\u00e9p x\u1eed l\u00fd s\u1ef1 c\u1ed1 nhanh ch\u00f3ng, ph\u00e1t hi\u1ec7n m\u1ed1i \u0111e d\u1ecda, v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch dung l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3.<\/p>\n

\u00dd ngh\u0129a c\u1ee7a NetFlow n\u1eb1m \u1edf s\u1ef1 h\u1ed7 tr\u1ee3 r\u1ed9ng r\u00e3i tr\u00ean c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, c\u00f4ng t\u1eafc v\u00e0 t\u01b0\u1eddng l\u1eeda, c\u00f9ng v\u1edbi kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 m\u1ea1ng ti\u00ean ti\u1ebfn nh\u01b0 Splunk. B\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p v\u1edbi Splunk, b\u1ea1n c\u00f3 th\u1ec3 khai th\u00e1c c\u00e1c kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch m\u1ea1nh m\u1ebd \u0111\u1ec3 r\u00fat ra nh\u1eefng hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc h\u01a1n t\u1eeb l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng c\u1ee7a m\u00ecnh.<\/p>\n

T\u00f3m l\u1ea1i, NetFlow cung c\u1ea5p cho c\u00e1c chuy\u00ean gia m\u1ea1ng m\u1ed9t kho c\u00f4ng c\u1ee5 phong ph\u00fa \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, n\u00e2ng cao b\u1ea3o m\u1eadt v\u00e0 chu\u1ea9n b\u1ecb cho c\u00e1c nhu c\u1ea7u v\u1ec1 m\u1ea1ng trong t\u01b0\u01a1ng lai.<\/p>\n

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T\u1ed1i \u01b0u h\u00f3a NetFlow \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u1ea1ng t\u1ed1i<\/h3>\n

\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u1ea1ng t\u1ed1i \u0111a v\u1edbi NetFlow, b\u1ea1n n\u00ean b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch k\u00edch ho\u1ea1t n\u00f3 tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng li\u00ean quan \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng tr\u00ean to\u00e0n b\u1ed9 h\u1ea1 t\u1ea7ng. L\u1ef1a ch\u1ecdn phi\u00ean b\u1ea3n ph\u00f9 h\u1ee3p v\u00e0 c\u00e1c \u0111i\u1ec3m quan s\u00e1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o t\u1ea5t c\u1ea3 th\u00f4ng tin l\u01b0u l\u01b0\u1ee3ng quan tr\u1ecdng.<\/p>\n

\u0110i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 m\u1eabu NetFlow l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 c\u00e2n b\u1eb1ng gi\u1eefa chi ti\u1ebft d\u1eef li\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t thi\u1ebft b\u1ecb. Trong khi t\u1ef7 l\u1ec7 m\u1eabu cao h\u01a1n gi\u00fap thu th\u1eadp nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y \u00e1p l\u1ef1c l\u00ean t\u00e0i nguy\u00ean m\u1ea1ng; ng\u01b0\u1ee3c l\u1ea1i, t\u1ef7 l\u1ec7 th\u1ea5p c\u00f3 th\u1ec3 b\u1ecf l\u1ee1 nh\u1eefng th\u00f4ng tin quan tr\u1ecdng. \u0110\u1ed1i v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u1ea1y c\u1ea3m v\u1ec1 b\u1ea3o m\u1eadt, h\u00e3y xem x\u00e9t vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u \u0111\u1ea7y \u0111\u1ee7 thay v\u00ec l\u1ea5y m\u1eabu.<\/p>\n

B\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng NetFlow thu th\u1eadp v\u00e0 cung c\u1ea5p d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, mang l\u1ea1i cho b\u1ea1n c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u1ec1 h\u00e0nh vi v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ea1ng.<\/p>\n

<\/h3>\n

T\u00edch h\u1ee3p NetFlow v\u1edbi Splunk \u0111\u1ec3 ph\u00e2n t\u00edch n\u00e2ng cao<\/h3>\n

T\u00edch h\u1ee3p NetFlow v\u1edbi Splunk l\u00e0 m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong ph\u00e2n t\u00edch m\u1ea1ng, mang l\u1ea1i nh\u1eefng th\u00f4ng tin d\u1eef li\u1ec7u m\u1ea1nh m\u1ebd ngay trong t\u1ea7m tay b\u1ea1n. NetFlow Forwarder c\u1ee7a Splunk h\u1ed7 tr\u1ee3 lu\u1ed3ng d\u1eef li\u1ec7u li\u1ec1n m\u1ea1ch, cho ph\u00e9p ph\u00e2n t\u00edch s\u00e2u h\u01a1n v\u1ec1 c\u00e1c m\u00f4 h\u00ecnh l\u01b0u l\u01b0\u1ee3ng, hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/p>\n

C\u00e1c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u00e1o c\u00e1o s\u1eb5n c\u00f3 c\u1ee7a Splunk cung c\u1ea5p c\u00e1i nh\u00ecn ngay l\u1eadp t\u1ee9c v\u1ec1 m\u1ee9c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng, h\u00e0nh vi m\u1ea1ng v\u00e0 hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng. Tuy nhi\u00ean, l\u1ee3i th\u1ebf th\u1ef1c s\u1ef1 \u0111\u1ebfn t\u1eeb t\u00ednh linh ho\u1ea1t c\u1ee7a Splunk, cho ph\u00e9p b\u1ea1n t\u1ea1o ra c\u00e1c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng th\u00f4ng tin h\u1eefu \u00edch.<\/p>\n

V\u1edbi h\u1ec7 th\u1ed1ng c\u1ea3nh b\u00e1o m\u1ea1nh m\u1ebd c\u1ee7a m\u00ecnh, Splunk c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t c\u00e1c ch\u1ec9 s\u1ed1 m\u1ea1ng theo th\u1eddi gian th\u1ef1c, g\u1eedi th\u00f4ng b\u00e1o khi c\u00e1c ng\u01b0\u1ee1ng b\u1ecb vi ph\u1ea1m, gi\u00fap ng\u0103n ch\u1eb7n nh\u1eefng v\u1ea5n \u0111\u1ec1 nh\u1ecf leo thang th\u00e0nh s\u1ef1 c\u1ed1 l\u1edbn. S\u1ef1 t\u00edch h\u1ee3p n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u\u2014n\u00f3 trang b\u1ecb cho c\u00e1c t\u1ed5 ch\u1ee9c kh\u1ea3 n\u0103ng t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, l\u1eadp k\u1ebf ho\u1ea1ch cho dung l\u01b0\u1ee3ng v\u00e0 c\u1ee7ng c\u1ed1 b\u1ea3o m\u1eadt tr\u01b0\u1edbc c\u00e1c m\u1ed1i \u0111e d\u1ecda \u0111ang ph\u00e1t tri\u1ec3n.<\/p>\n

\u0110\u1ea7u t\u01b0 v\u00e0o s\u1ef1 t\u00edch h\u1ee3p n\u00e0y l\u00e0 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 cho n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a m\u1ea1ng l\u01b0\u1edbi, gi\u00fap doanh nghi\u1ec7p \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean d\u1eef li\u1ec7u, t\u1ed1i \u01b0u h\u00f3a ho\u1ea1t \u0111\u1ed9ng v\u00e0 duy tr\u00ec t\u00ednh c\u1ea1nh tranh trong th\u1eddi \u0111\u1ea1i s\u1ed1.<\/p>\n

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Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u1edbi NetFlow v\u00e0 Splunk<\/h3>\n

When working with NetFlow and Splunk, you may occasionally run into performance issues. To troubleshoot effectively, start by ensuring NetFlow is properly configured on your devices. Verify that it’s enabled, and that the correct IP address and port are being used for data export.<\/p>\n

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Khi l\u00e0m vi\u1ec7c v\u1edbi NetFlow v\u00e0 Splunk, b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t. \u0110\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, h\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch \u0111\u1ea3m b\u1ea3o r\u1eb1ng NetFlow \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u00fang tr\u00ean c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n. X\u00e1c minh r\u1eb1ng n\u00f3 \u0111\u00e3 \u0111ang ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u1ecba ch\u1ec9 IP c\u00f9ng v\u1edbi c\u1ed5ng ch\u00ednh x\u00e1c \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 xu\u1ea5t d\u1eef li\u1ec7u.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

C\u0169ng c\u1ea7n ki\u1ec3m tra m\u00f4i tr\u01b0\u1eddng c\u1ee7a Splunk \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00f3 \u0111\u1ee7 kh\u00f4ng gian \u0111\u0129a, v\u00ec vi\u1ec7c thi\u1ebfu dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t d\u1eef li\u1ec7u ho\u1eb7c hi\u1ec7u su\u1ea5t ch\u1eadm. Vi\u1ec7c xem x\u00e9t c\u00e1c nh\u1eadt k\u00fd log c\u1ee7a Splunk \u0111\u1ec3 t\u00ecm c\u00e1c l\u1ed7i li\u00ean quan \u0111\u1ebfn NetFlow c\u00f3 th\u1ec3 cung c\u1ea5p nh\u1eefng th\u00f4ng tin qu\u00fd gi\u00e1 v\u00e0 gi\u00fap x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5.<\/p>\n

Cu\u1ed1i c\u00f9ng, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u1ea3 thi\u1ebft b\u1ecb NetFlow v\u00e0 n\u1ec1n t\u1ea3ng Splunk \u0111\u1ec1u \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt l\u00ean phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t, v\u00ec c\u00e1c b\u1ea3n c\u1eadp nh\u1eadt th\u01b0\u1eddng bao g\u1ed3m nh\u1eefng b\u1ea3n s\u1eeda l\u1ed7i quan tr\u1ecdng v\u00e0 c\u1ea3i ti\u1ebfn hi\u1ec7u su\u1ea5t. B\u1eb1ng c\u00e1ch gi\u1eef cho c\u00e1c h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n lu\u00f4n c\u1eadp nh\u1eadt, b\u1ea1n s\u1ebd gi\u1ea3m thi\u1ec3u kh\u1ea3 n\u0103ng g\u1eb7p ph\u1ea3i c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00eau tr\u00ean.<\/p>\n

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<\/h3>\n

C\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a NetFlow v\u1edbi Splunk<\/h3>\n

\u0110\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a s\u1ef1 t\u00edch h\u1ee3p gi\u1eefa NetFlow v\u00e0 Splunk, h\u00e3y l\u00e0m theo c\u00e1c b\u01b0\u1edbc t\u1ed1t nh\u1ea5t sau \u0111\u00e2y. \u0110\u1ea7u ti\u00ean, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng NetFlow \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb ph\u00e1t sinh l\u01b0u l\u01b0\u1ee3ng, cung c\u1ea5p c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 m\u1ea1ng. T\u1ef7 l\u1ec7 m\u1eabu (sampling rate) ph\u00f9 h\u1ee3p c\u0169ng r\u1ea5t quan tr\u1ecdng\u2014t\u1ef7 l\u1ec7 cao h\u01a1n mang l\u1ea1i nhi\u1ec1u chi ti\u1ebft h\u01a1n nh\u01b0ng c\u00f3 th\u1ec3 g\u00e2y \u00e1p l\u1ef1c l\u00ean t\u00e0i nguy\u00ean, v\u00ec v\u1eady h\u00e3y t\u00ecm ra m\u1ee9c c\u00e2n b\u1eb1ng ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n

D\u1eef li\u1ec7u NetFlow th\u01b0\u1eddng \u1edf \u0111\u1ecbnh d\u1ea1ng nh\u1ecb ph\u00e2n, \u0111i\u1ec1u m\u00e0 Splunk kh\u00f4ng th\u1ec3 x\u1eed l\u00fd tr\u1ef1c ti\u1ebfp, v\u00ec v\u1eady n\u00f3 c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111\u1ecbnh d\u1ea1ng t\u01b0\u01a1ng th\u00edch nh\u01b0 Syslog ho\u1eb7c JSON. Do l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn m\u00e0 NetFlow c\u00f3 th\u1ec3 t\u1ea1o ra, b\u1ea1n n\u00ean xem x\u00e9t c\u00e1c k\u1ef9 thu\u1eadt t\u1ed5ng h\u1ee3p ho\u1eb7c t\u00f3m t\u1eaft \u0111\u1ec3 gi\u1ea3m t\u1ea3i cho m\u1ea1ng v\u00e0 t\u00e0i nguy\u00ean c\u1ee7a Splunk. B\u00ean c\u1ea1nh \u0111\u00f3, vi\u1ec7c l\u00e0m gi\u00e0u d\u1eef li\u1ec7u NetFlow v\u1edbi c\u00e1c th\u00f4ng tin nh\u01b0 ph\u00e2n gi\u1ea3i DNS, t\u00ean \u1ee9ng d\u1ee5ng ho\u1eb7c danh t\u00ednh ng\u01b0\u1eddi d\u00f9ng cung c\u1ea5p c\u00e1i nh\u00ecn s\u00e2u s\u1eafc h\u01a1n.<\/p>\n

H\u00e3y th\u01b0\u1eddng xuy\u00ean xem x\u00e9t v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u1ea5u h\u00ecnh c\u1ee7a b\u1ea1n \u0111\u1ec3 th\u00edch \u1ee9ng v\u1edbi nhu c\u1ea7u m\u1ea1ng thay \u0111\u1ed5i. C\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean c\u00e1c phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u1ee7a c\u1ea3 NetFlow v\u00e0 Splunk \u0111\u1ec3 t\u1eadn d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng v\u00e0 c\u1ea3i ti\u1ebfn m\u1edbi c\u00f3 th\u1ec3 gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t.<\/p>\n

B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, b\u1ea1n s\u1ebd \u0111\u1ea3m b\u1ea3o vi\u1ec7c t\u00edch h\u1ee3p NetFlow v\u00e0 Splunk ho\u1ea1t \u0111\u1ed9ng v\u1edbi hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u, mang l\u1ea1i kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u1ea1nh m\u1ebd v\u00e0 hi\u1ec7u su\u1ea5t m\u1ea1ng \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a.<\/p>\n

 <\/p>\n

V\u1ec1 DT Asia<\/strong><\/p>\n

DT Asia \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp n\u0103m 2007 v\u1edbi s\u1ee9 m\u1ec7nh \u0111\u01b0a c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt CNTT ti\u00ean phong kh\u00e1c nhau t\u1eeb Hoa K\u1ef3, Ch\u00e2u \u00c2u v\u00e0 Israel gia nh\u1eadp th\u1ecb tr\u01b0\u1eddng.<\/p>\n

Hi\u1ec7n t\u1ea1i, DT Asia \u0111\u00e3 l\u00e0 m\u1ed9t nh\u00e0 ph\u00e2n ph\u1ed1i gi\u00e1 tr\u1ecb gia t\u0103ng trong khu v\u1ef1c \u0111\u1ed1i v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p an ninh m\u1ea1ng, cung c\u1ea5p c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn cho c\u00e1c t\u1ed5 ch\u1ee9c ch\u00ednh ph\u1ee7 tr\u1ecdng y\u1ebfu c\u0169ng nh\u01b0 c\u00e1c kh\u00e1ch h\u00e0ng t\u01b0 nh\u00e2n l\u1edbn bao g\u1ed3m c\u00e1c ng\u00e2n h\u00e0ng to\u00e0n c\u1ea7u v\u00e0 c\u00e1c c\u00f4ng ty trong danh s\u00e1ch Fortune 500. V\u1edbi c\u00e1c v\u0103n ph\u00f2ng v\u00e0 \u0111\u1ed1i t\u00e1c r\u1ed9ng kh\u1eafp trong khu v\u1ef1c Ch\u00e2u \u00c1 Th\u00e1i B\u00ecnh D\u01b0\u01a1ng, ch\u00fang t\u00f4i hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 th\u1ecb tr\u01b0\u1eddng v\u00e0 t\u1eeb \u0111\u00f3 mang \u0111\u1ebfn nh\u1eefng gi\u1ea3i ph\u00e1p b\u1ea3n \u0111\u1ecba h\u00f3a ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng qu\u1ed1c gia, t\u1eebng t\u1ed5 ch\u1ee9c.<\/p>\n

\u00a0<\/strong><\/p>\n

C\u00e1ch ch\u00fang t\u00f4i c\u00f3 th\u1ec3 gi\u00fap\u00a0<\/strong><\/p>\n

N\u1ebfu b\u1ea1n mu\u1ed1n bi\u1ebft th\u00eam v\u1ec1 c\u00e1c c\u00e1ch t\u1ed1i \u01b0u h\u00f3a NetFlow v\u1edbi Splunk, b\u1ea1n \u0111ang \u1edf \u0111\u00fang n\u01a1i, ch\u00fang t\u00f4i s\u1eb5n s\u00e0ng gi\u00fap \u0111\u1ee1! DT Asia l\u00e0 nh\u00e0 ph\u00e2n ph\u1ed1i c\u1ee7a Netflow Logic, \u0111\u1eb7c bi\u1ec7t t\u1ea1i Vi\u1ec7t Nam v\u00e0 ch\u00e2u \u00c1, c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u1ee7a ch\u00fang t\u00f4i c\u00f3 kinh nghi\u1ec7m s\u00e2u r\u1ed9ng v\u1ec1 s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 li\u00ean quan m\u00e0 b\u1ea1n lu\u00f4n c\u00f3 th\u1ec3 tin t\u01b0\u1edfng. Ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p tr\u1ecdn g\u00f3i cho s\u1ea3n ph\u1ea9m n\u00e0y, bao g\u1ed3m t\u01b0 v\u1ea5n, tri\u1ec3n khai v\u00e0 d\u1ecbch v\u1ee5 b\u1ea3o tr\u00ec.<\/p>\n

B\u1ea5m v\u00e0o \u0111\u00e2y \u0111\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft:\u00a0https:\/\/dtasiagroup.com\/netflowlogic\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a network v\u00e0 ph\u00e2n t\u00edch n\u00e2ng cao v\u1edbi h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch t\u1ed1i \u01b0u h\u00f3a NetFlow cho Splunk. Trong blog n\u00e0y, ch\u00fang t\u00f4i s\u1ebd g\u1ecdi chung t\u1ea5t c\u1ea3 c\u00e1c giao th\u1ee9c lu\u1ed3ng d\u1eef li\u1ec7u nh\u01b0 sFlow, JFlow, IPFIX v\u00e0 nh\u1eadt k\u00fd l\u01b0u l\u01b0\u1ee3ng \u0111\u00e1m m\u00e2y l\u00e0 \u2018NetFlow\u2019. H\u00e3y t\u00ecm hi\u1ec3u c\u00e1ch khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb m\u1ea1ng v\u01b0\u1ee3t tr\u1ed9i v\u00e0 ph\u00e2n t\u00edch chuy\u00ean s\u00e2u. Ch\u00fang t\u00f4i s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n t\u1eebng b\u01b0\u1edbc m\u1ed9t, t\u1eeb vi\u1ec7c k\u00edch ho\u1ea1t NetFlow tr\u00ean c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111\u1ebfn vi\u1ec7c t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi Splunk. Th\u00eam v\u00e0o \u0111\u00f3, ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p c\u00e1c m\u1eb9o kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 c\u00e1ch th\u1ef1c hi\u1ec7n t\u1ed1t nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t, gi\u00fap b\u1ea1n khai th\u00e1c t\u1ed1i \u0111a gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng (network traffic data). S\u1eb5n s\u00e0ng n\u00e2ng cao kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch network c\u1ee7a b\u1ea1n!<\/p>\n","protected":false},"author":11,"featured_media":14262,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79,63],"tags":[],"class_list":["post-14268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bai-viet","category-announcements-vi"],"_links":{"self":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts\/14268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/comments?post=14268"}],"version-history":[{"count":5,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts\/14268\/revisions"}],"predecessor-version":[{"id":14391,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/posts\/14268\/revisions\/14391"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/media\/14262"}],"wp:attachment":[{"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/media?parent=14268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/categories?post=14268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dtasiagroup.com\/vi\/wp-json\/wp\/v2\/tags?post=14268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}