{"id":5319,"date":"2026-02-19T14:14:39","date_gmt":"2026-02-19T14:14:39","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=5319"},"modified":"2026-02-26T21:48:22","modified_gmt":"2026-02-26T21:48:22","slug":"huong-dan-cai-dat-mang-cach-xay-dung-mot-mang-kinh-doanh-an-toan-va-co-kha-nang-mo-rong","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/mang-luoi\/huong-dan-cai-dat-mang-cach-xay-dung-mot-mang-kinh-doanh-an-toan-va-co-kha-nang-mo-rong\/","title":{"rendered":"H\u01b0\u1edbng D\u1eabn C\u00e0i \u0110\u1eb7t M\u1ea1ng: C\u00e1ch X\u00e2y D\u1ef1ng M\u1ea1ng Doanh Nghi\u1ec7p C\u00f3 Th\u1ec3 M\u1edf R\u1ed9ng v\u00e0 An To\u00e0n"},"content":{"rendered":"

M\u1ed9t m\u1ea1ng l\u01b0\u1edbi \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t k\u00e9m l\u00e0 m\u1ed9t tr\u00e1ch nhi\u1ec7m v\u00f4 h\u00ecnh. Chuy\u1ec3n t\u1eadp tin ch\u1eadm, cu\u1ed9c g\u1ecdi video b\u1ecb gi\u00e1n \u0111o\u1ea1n, c\u00e1c vi ph\u1ea1m an ninh<\/a>, v\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1n k\u00e9m \u0111\u1ec1u c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u1ea3n \u1ee9ng thay v\u00ec \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch c\u1ea9n th\u1eadn. Theo \u01b0\u1edbc t\u00ednh c\u1ee7a ng\u00e0nh, c\u00e1c s\u1ef1 c\u1ed1 m\u1ea1ng do c\u00e1p kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c doanh nghi\u1ec7p t\u1ed1n t\u1edbi $60,000 m\u1ed7i gi\u1edd trong th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

Cho d\u00f9 b\u1ea1n \u0111ang thi\u1ebft l\u1eadp m\u1ed9t v\u0103n ph\u00f2ng m\u1edbi, m\u1edf r\u1ed9ng \u0111\u1ebfn c\u00e1c \u0111\u1ecba \u0111i\u1ec3m b\u1ed5 sung, hay n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u0169, c\u00e0i \u0111\u1eb7t m\u1ea1ng l\u00e0 n\u1ec1n t\u1ea3ng m\u00e0 m\u1ecdi th\u1ee9 kh\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o, d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y, VoIP, camera an ninh, h\u1ec7 th\u1ed1ng \u0111i\u1ec3m b\u00e1n h\u00e0ng, v\u00e0 truy c\u1eadp t\u1eeb xa \u0111\u1ec1u ch\u1ea1y tr\u00ean \u0111\u00f3. H\u01b0\u1edbng d\u1eabn n\u00e0y bao g\u1ed3m to\u00e0n b\u1ed9 quy tr\u00ecnh: l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 thi\u1ebft k\u1ebf, l\u1ef1a ch\u1ecdn ph\u1ea7n c\u1ee9ng, \u0111i d\u00e2y, c\u1ea5u h\u00ecnh, b\u1ea3o m\u1eadt, v\u00e0 b\u1ea3o tr\u00ec li\u00ean t\u1ee5c.<\/p>\n\n\n

C\u00e0i \u0111\u1eb7t m\u1ea1ng th\u1ef1c s\u1ef1 bao g\u1ed3m nh\u1eefng g\u00ec<\/h2>\n\n\n

C\u00e0i \u0111\u1eb7t m\u1ea1ng l\u00e0 qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf, tri\u1ec3n khai, v\u00e0 c\u1ea5u h\u00ecnh c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb giao ti\u1ebfp, chia s\u1ebb d\u1eef li\u1ec7u, v\u00e0 truy c\u1eadp internet. N\u00f3 bao g\u1ed3m c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u1eadt l\u00fd (c\u00e1p, switch, router, \u0111i\u1ec3m truy c\u1eadp), c\u1ea5u h\u00ecnh logic (\u0111\u1ecba ch\u1ec9 IP, VLAN, quy t\u1eafc t\u01b0\u1eddng l\u1eeda), v\u00e0 tri\u1ec3n khai b\u1ea3o m\u1eadt (m\u00e3 h\u00f3a, ki\u1ec3m so\u00e1t truy c\u1eadp, gi\u00e1m s\u00e1t).<\/p>\n\n\n\n

Ph\u1ea1m vi thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 t\u00f9y thu\u1ed9c v\u00e0o m\u00f4i tr\u01b0\u1eddng. M\u1ed9t v\u0103n ph\u00f2ng 10 ng\u01b0\u1eddi c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t router duy nh\u1ea5t, m\u1ed9t switch qu\u1ea3n l\u00fd, v\u00e0i \u0111i\u1ec3m truy c\u1eadp, v\u00e0 m\u1ed9t ng\u00e0y c\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p. M\u1ed9t v\u0103n ph\u00f2ng c\u00f4ng ty nhi\u1ec1u t\u1ea7ng ho\u1eb7c doanh nghi\u1ec7p nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00e1p c\u1ea5u tr\u00fac tr\u00ean h\u00e0ng tr\u0103m \u0111i\u1ec3m, k\u1ebft n\u1ed1i internet d\u1ef1 ph\u00f2ng, ph\u00f2ng m\u00e1y ch\u1ee7 chuy\u00ean d\u1ee5ng, v\u00e0 nhi\u1ec1u tu\u1ea7n c\u00e0i \u0111\u1eb7t v\u00e0 th\u1eed nghi\u1ec7m.<\/p>\n\n\n\n

B\u1ea5t k\u1ec3 quy m\u00f4, c\u00e1c nguy\u00ean t\u1eafc \u0111\u1ec1u gi\u1ed1ng nhau: l\u1eadp k\u1ebf ho\u1ea1ch k\u1ef9 l\u01b0\u1ee1ng, c\u00e0i \u0111\u1eb7t theo ti\u00eau chu\u1ea9n, c\u1ea5u h\u00ecnh cho b\u1ea3o m\u1eadt, v\u00e0 thi\u1ebft k\u1ebf cho s\u1ef1 ph\u00e1t tri\u1ec3n.<\/p>\n\n\n

B\u01b0\u1edbc 1: L\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 \u0111\u00e1nh gi\u00e1 \u0111\u1ecba \u0111i\u1ec3m<\/h2>\n\n\n

M\u1ecdi c\u00e0i \u0111\u1eb7t m\u1ea1ng th\u00e0nh c\u00f4ng b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch, v\u00e0 b\u1ecf qua b\u01b0\u1edbc n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 sau n\u00e0y.<\/p>\n\n\n

\u0110\u00e1nh gi\u00e1 y\u00eau c\u1ea7u kinh doanh<\/h3>\n\n\n

Tr\u01b0\u1edbc khi ch\u1ecdn b\u1ea5t k\u1ef3 ph\u1ea7n c\u1ee9ng n\u00e0o, b\u1ea1n c\u1ea7n hi\u1ec3u m\u1ea1ng ph\u1ea3i h\u1ed7 tr\u1ee3 nh\u1eefng g\u00ec. C\u00f3 bao nhi\u00eau thi\u1ebft b\u1ecb s\u1ebd k\u1ebft n\u1ed1i (m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i, m\u00e1y in, thi\u1ebft b\u1ecb IoT, camera an ninh)? Nh\u1eefng \u1ee9ng d\u1ee5ng n\u00e0o s\u1ebd ch\u1ea1y tr\u00ean \u0111\u00f3, email c\u01a1 b\u1ea3n v\u00e0 duy\u1ec7t web, hay c\u00e1c ho\u1ea1t \u0111\u1ed9ng s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng cao nh\u01b0 h\u1ed9i ngh\u1ecb video, sao l\u01b0u \u0111\u00e1m m\u00e2y, v\u00e0 chuy\u1ec3n t\u1eadp tin l\u1edbn? B\u1ea1n c\u00f3 c\u1ea7n h\u1ed7 tr\u1ee3 nh\u00e2n vi\u00ean l\u00e0m vi\u1ec7c t\u1eeb xa qua M\u1ea1ng ri\u00eang \u1ea3o VPN<\/a>? C\u00f3 y\u00eau c\u1ea7u tu\u00e2n th\u1ee7 n\u00e0o (HIPAA, PCI-DSS, h\u1ee3p \u0111\u1ed3ng ch\u00ednh ph\u1ee7) y\u00eau c\u1ea7u ti\u00eau chu\u1ea9n b\u1ea3o m\u1eadt c\u1ee5 th\u1ec3 kh\u00f4ng?<\/p>\n\n\n\n

Nh\u1eefng c\u00e2u tr\u1ea3 l\u1eddi n\u00e0y x\u00e1c \u0111\u1ecbnh m\u1ecdi th\u1ee9 t\u1eeb b\u0103ng th\u00f4ng internet \u0111\u1ebfn lo\u1ea1i c\u00e1p \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u01b0\u1eddng l\u1eeda.<\/p>\n\n\n

Ti\u1ebfn h\u00e0nh kh\u1ea3o s\u00e1t \u0111\u1ecba \u0111i\u1ec3m<\/h3>\n\n\n

Kh\u1ea3o s\u00e1t th\u1ef1c t\u1ebf kh\u00f4ng gian x\u00e1c \u0111\u1ecbnh c\u00e1c h\u1ea1n ch\u1ebf th\u1ef1c t\u1ebf: b\u1ed1 tr\u00ed t\u00f2a nh\u00e0, c\u1ea5u tr\u00fac t\u01b0\u1eddng, truy c\u1eadp tr\u1ea7n cho \u0111\u01b0\u1eddng c\u00e1p, kho\u1ea3ng c\u00e1ch gi\u1eefa ph\u00f2ng m\u00e1y ch\u1ee7 (ho\u1eb7c t\u1ee7 m\u1ea1ng) v\u00e0 \u0111i\u1ec3m cu\u1ed1i xa nh\u1ea5t, ngu\u1ed3n nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p, \u0111\u1ed9ng c\u01a1 thang m\u00e1y), v\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p \u0111i\u1ec7n cho thi\u1ebft b\u1ecb m\u1ea1ng.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi ph\u1ee7 s\u00f3ng kh\u00f4ng d\u00e2y, kh\u1ea3o s\u00e1t \u0111\u1ecba \u0111i\u1ec3m l\u1eadp b\u1ea3n \u0111\u1ed3 n\u01a1i c\u00e1c \u0111i\u1ec3m truy c\u1eadp n\u00ean \u0111\u01b0\u1ee3c \u0111\u1eb7t \u0111\u1ec3 lo\u1ea1i b\u1ecf v\u00f9ng ch\u1ebft trong khi tr\u00e1nh c\u00e1c k\u00eanh ch\u1ed3ng ch\u00e9o t\u1ea1o ra nhi\u1ec5u. C\u00e1c c\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 Ekahau ho\u1eb7c NetSpot \u0111\u1ec3 t\u1ea1o b\u1ea3n \u0111\u1ed3 nhi\u1ec7t c\u1ee7a ph\u1ee7 s\u00f3ng kh\u00f4ng d\u00e2y tr\u01b0\u1edbc khi c\u00e0i \u0111\u1eb7t m\u1ed9t \u0111i\u1ec3m truy c\u1eadp n\u00e0o.<\/p>\n\n\n

Ch\u1ecdn lo\u1ea1i m\u1ea1ng c\u1ee7a b\u1ea1n<\/h3>\n\n\n

H\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng kinh doanh s\u1eed d\u1ee5ng c\u00e1ch ti\u1ebfp c\u1eadn k\u1ebft h\u1ee3p k\u1ebft n\u1ed1i c\u00f3 d\u00e2y v\u00e0 kh\u00f4ng d\u00e2y.<\/p>\n\n\n\n

K\u1ebft n\u1ed1i c\u00f3 d\u00e2y (Ethernet)<\/strong> cung c\u1ea5p hi\u1ec7u su\u1ea5t nhanh nh\u1ea5t, \u0111\u00e1ng tin c\u1eady nh\u1ea5t. Ch\u00fang c\u1ea7n thi\u1ebft cho m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n, m\u00e1y ch\u1ee7, \u0111i\u1ec7n tho\u1ea1i VoIP, camera an ninh, v\u00e0 b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb n\u00e0o c\u1ea7n k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng cao, \u1ed5n \u0111\u1ecbnh. K\u1ebft n\u1ed1i c\u00f3 d\u00e2y c\u0169ng an to\u00e0n h\u01a1n v\u00ec ch\u00fang y\u00eau c\u1ea7u truy c\u1eadp v\u1eadt l\u00fd.<\/p>\n\n\n\n

Kh\u00f4ng d\u00e2y (Wi-Fi)<\/strong> cung c\u1ea5p s\u1ef1 linh ho\u1ea1t m\u00e0 c\u00e1c n\u01a1i l\u00e0m vi\u1ec7c hi\u1ec7n \u0111\u1ea1i y\u00eau c\u1ea7u, m\u00e1y t\u00ednh x\u00e1ch tay, m\u00e1y t\u00ednh b\u1ea3ng, \u0111i\u1ec7n tho\u1ea1i, v\u00e0 kh\u00e1ch \u0111\u1ec1u c\u1ea7n truy c\u1eadp kh\u00f4ng d\u00e2y. Hi\u1ec7n t\u1ea1i Wi-Fi<\/a> 6 (802.11ax) v\u00e0 Wi-Fi 7 (802.11be) h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 multi-gigabit v\u00e0 x\u1eed l\u00fd m\u00f4i tr\u01b0\u1eddng thi\u1ebft b\u1ecb d\u00e0y \u0111\u1eb7c t\u1ed1t h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c th\u1ebf h\u1ec7 tr\u01b0\u1edbc.<\/p>\n\n\n\n

K\u1ebft n\u1ed1i WAN<\/strong> li\u00ean k\u1ebft nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m v\u0103n ph\u00f2ng. C\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 SD-WAN, MPLS, v\u00e0 VPN site-to-site cung c\u1ea5p k\u1ebft n\u1ed1i an to\u00e0n gi\u1eefa c\u00e1c m\u1ea1ng t\u00e1ch bi\u1ec7t v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c doanh nghi\u1ec7p, c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang l\u00e0 k\u1ebft n\u1ed1i c\u00f3 d\u00e2y cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ed1 \u0111\u1ecbnh v\u00e0 kh\u00f4ng d\u00e2y cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng v\u00e0 linh ho\u1ea1t, kh\u00f4ng ph\u1ea3i m\u1ed9t trong hai.<\/p>\n\n\n

B\u01b0\u1edbc 2: Thi\u1ebft k\u1ebf m\u1ea1ng v\u00e0 c\u1ea5u tr\u00fac li\u00ean k\u1ebft<\/h2>\n\n\n

Thi\u1ebft k\u1ebf m\u1ea1ng chuy\u1ec3n \u0111\u1ed5i c\u00e1c y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n th\u00e0nh m\u1ed9t ki\u1ebfn tr\u00fac x\u00e1c \u0111\u1ecbnh c\u00e1ch d\u1eef li\u1ec7u l\u01b0u chuy\u1ec3n<\/a>, c\u00e1ch thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u00e0 c\u00e1ch m\u1ea1ng m\u1edf r\u1ed9ng.<\/p>\n\n\n

L\u1ef1a ch\u1ecdn c\u1ea5u tr\u00fac li\u00ean k\u1ebft<\/h3>\n\n\n

C\u1ea5u tr\u00fac li\u00ean k\u1ebft sao l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c m\u1ea1ng doanh nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. M\u1ecdi thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t switch trung t\u00e2m (ho\u1eb7c t\u1eadp h\u1ee3p c\u00e1c switch), k\u1ebft n\u1ed1i v\u1edbi router v\u00e0 t\u01b0\u1eddng l\u1eeda. C\u1ea5u tr\u00fac li\u00ean k\u1ebft sao \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, m\u1ed9t k\u1ebft n\u1ed1i b\u1ecb l\u1ed7i kh\u00f4ng l\u00e0m s\u1eadp m\u1ea1ng, v\u00e0 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng b\u1eb1ng c\u00e1ch th\u00eam switch.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c c\u00e0i \u0111\u1eb7t l\u1edbn h\u01a1n, m\u1ed9t c\u1ea5u tr\u00fac li\u00ean k\u1ebft sao-bus lai s\u1eed d\u1ee5ng k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng gi\u1eefa nhi\u1ec1u switch tr\u00ean c\u00e1c t\u1ea7ng ho\u1eb7c t\u00f2a nh\u00e0, v\u1edbi c\u1ea5u tr\u00fac li\u00ean k\u1ebft sao t\u1ea1i m\u1ed7i \u0111i\u1ec3m ph\u00e2n ph\u1ed1i.<\/p>\n\n\n\n

C\u1ea5u tr\u00fac li\u00ean k\u1ebft l\u01b0\u1edbi ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn cho c\u00e1c m\u1ea1ng kh\u00f4ng d\u00e2y, n\u01a1i c\u00e1c \u0111i\u1ec3m truy c\u1eadp l\u01b0\u1edbi chuy\u1ec3n ti\u1ebfp t\u00edn hi\u1ec7u \u0111\u1ec3 m\u1edf r\u1ed9ng ph\u1ea1m vi ph\u1ee7 s\u00f3ng m\u00e0 kh\u00f4ng c\u1ea7n ch\u1ea1y th\u00eam c\u00e1p. C\u00e1c h\u1ec7 th\u1ed1ng l\u01b0\u1edbi doanh nghi\u1ec7p t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 Ubiquiti, Cisco Meraki, v\u00e0 Aruba cung c\u1ea5p qu\u1ea3n l\u00fd t\u1eadp trung cho c\u00e1c m\u1ea1ng kh\u00f4ng d\u00e2y l\u01b0\u1edbi.<\/p>\n\n\n

\u0110\u1ecba ch\u1ec9 IP v\u00e0 ph\u00e2n chia m\u1ea1ng con<\/h3>\n\n\n

M\u1ed9t s\u01a1 \u0111\u1ed3 IP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t l\u00e0 v\u00f4 h\u00ecnh khi n\u00f3 ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u00e0 c\u01a1n \u00e1c m\u1ed9ng khi kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng. L\u1eadp k\u1ebf ho\u1ea1ch kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 c\u1ee7a b\u1ea1n \u0111\u1ec3 t\u00e1ch bi\u1ec7t c\u00e1c ph\u00e2n \u0111o\u1ea1n m\u1ea1ng: m\u1ed9t m\u1ea1ng con cho c\u00e1c m\u00e1y tr\u1ea1m, m\u1ed9t m\u1ea1ng kh\u00e1c cho \u0111i\u1ec7n tho\u1ea1i VoIP, m\u1ed9t m\u1ea1ng kh\u00e1c cho Wi-Fi kh\u00e1ch, m\u1ed9t m\u1ea1ng kh\u00e1c cho thi\u1ebft b\u1ecb IoT. S\u1ef1 ph\u00e2n \u0111o\u1ea1n n\u00e0y c\u1ea3i thi\u1ec7n c\u1ea3 hi\u1ec7u su\u1ea5t (gi\u1ea3m l\u01b0u l\u01b0\u1ee3ng qu\u1ea3ng b\u00e1) v\u00e0 b\u1ea3o m\u1eadt (gi\u1edbi h\u1ea1n vi ph\u1ea1m trong m\u1ed9t ph\u00e2n \u0111o\u1ea1n duy nh\u1ea5t).<\/p>\n\n\n\n

S\u1eed d\u1ee5ng DHCP cho h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb kh\u00e1ch h\u00e0ng v\u00e0 d\u00e0nh c\u00e1c IP t\u0129nh cho thi\u1ebft b\u1ecb c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng (switch, \u0111i\u1ec3m truy c\u1eadp, m\u00e1y in, m\u00e1y ch\u1ee7).<\/p>\n\n\n

B\u01b0\u1edbc 3: L\u1ef1a ch\u1ecdn ph\u1ea7n c\u1ee9ng<\/h2>\n\n\n

Ph\u1ea7n c\u1ee9ng b\u1ea1n ch\u1ecdn x\u00e1c \u0111\u1ecbnh tr\u1ea7n hi\u1ec7u su\u1ea5t, \u0111\u1ed9 tin c\u1eady, v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a m\u1ea1ng c\u1ee7a b\u1ea1n. Thi\u1ebft b\u1ecb c\u1ea5p doanh nghi\u1ec7p t\u1ed1n nhi\u1ec1u chi ph\u00ed h\u01a1n ban \u0111\u1ea7u nh\u01b0ng b\u00f9 l\u1ea1i b\u1eb1ng \u0111\u1ed9 tin c\u1eady, kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd, v\u00e0 tu\u1ed5i th\u1ecd.<\/p>\n\n\n

C\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i<\/h3>\n\n

Router\/T\u01b0\u1eddng l\u1eeda<\/strong><\/h4>\n\n\n

Thi\u1ebft b\u1ecb c\u1ea1nh k\u1ebft n\u1ed1i m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a b\u1ea1n v\u1edbi internet v\u00e0 th\u1ef1c thi ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt. T\u01b0\u1eddng l\u1eeda c\u1ea5p doanh nghi\u1ec7p t\u1eeb Fortinet, SonicWall, ho\u1eb7c pfSense th\u01b0\u1eddng c\u00f3 gi\u00e1 t\u1eeb $500\u2013$2,500 t\u00f9y thu\u1ed9c v\u00e0o th\u00f4ng l\u01b0\u1ee3ng v\u00e0 b\u1ed9 t\u00ednh n\u0103ng. Router ti\u00eau d\u00f9ng kh\u00f4ng ph\u00f9 h\u1ee3p cho s\u1eed d\u1ee5ng doanh nghi\u1ec7p, ch\u00fang thi\u1ebfu c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt, kh\u1ea3 n\u0103ng VPN, v\u00e0 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd m\u00e0 c\u00e1c m\u1ea1ng doanh nghi\u1ec7p y\u00eau c\u1ea7u.<\/p>\n\n\n

Switch qu\u1ea3n l\u00fd<\/strong><\/h4>\n\n\n

Switch k\u1ebft n\u1ed1i t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb c\u00f3 d\u00e2y c\u1ee7a b\u1ea1n. Switch qu\u1ea3n l\u00fd (kh\u00e1c v\u1edbi kh\u00f4ng qu\u1ea3n l\u00fd) cho ph\u00e9p b\u1ea1n c\u1ea5u h\u00ecnh VLAN, gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng, v\u00e0 \u01b0u ti\u00ean m\u1ed9t s\u1ed1 lo\u1ea1i d\u1eef li\u1ec7u nh\u1ea5t \u0111\u1ecbnh (nh\u01b0 VoIP). Switch PoE (Power over Ethernet) c\u00f3 th\u1ec3 cung c\u1ea5p \u0111i\u1ec7n cho c\u00e1c \u0111i\u1ec3m truy c\u1eadp, camera, v\u00e0 \u0111i\u1ec7n tho\u1ea1i th\u00f4ng qua c\u00e1p m\u1ea1ng, lo\u1ea1i b\u1ecf c\u00e1c \u0111\u01b0\u1eddng \u0111i\u1ec7n ri\u00eang bi\u1ec7t. D\u1ef1 ki\u1ebfn $200\u2013$1,500 m\u1ed7i switch t\u00f9y thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng c\u1ed5ng v\u00e0 kh\u1ea3 n\u0103ng PoE.<\/p>\n\n\n

\u0110i\u1ec3m truy c\u1eadp kh\u00f4ng d\u00e2y<\/strong><\/h4>\n\n\n

C\u00e1c \u0111i\u1ec3m truy c\u1eadp doanh nghi\u1ec7p h\u1ed7 tr\u1ee3 Wi-Fi 6 c\u00f3 gi\u00e1 t\u1eeb $125\u2013$400 m\u1ed7i c\u00e1i, v\u1edbi h\u1ea7u h\u1ebft c\u00e1c v\u0103n ph\u00f2ng nh\u1ecf c\u1ea7n 2\u20134 \u0111\u01a1n v\u1ecb \u0111\u1ec3 ph\u1ee7 s\u00f3ng \u0111\u1ea7y \u0111\u1ee7 (kho\u1ea3ng m\u1ed9t \u0111\u01a1n v\u1ecb cho m\u1ed7i 1,000\u20131,500 feet vu\u00f4ng). Qu\u1ea3n l\u00fd t\u1eadp trung th\u00f4ng qua m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c n\u1ec1n t\u1ea3ng \u0111\u00e1m m\u00e2y l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec c\u1ea5u h\u00ecnh v\u00e0 b\u1ea3o m\u1eadt nh\u1ea5t qu\u00e1n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m truy c\u1eadp.<\/p>\n\n\n

C\u00e1p c\u1ea5u tr\u00fac<\/strong><\/h4>\n\n\n

Cat6A l\u00e0 ti\u00eau chu\u1ea9n khuy\u1ebfn ngh\u1ecb hi\u1ec7n t\u1ea1i cho c\u00e1c c\u00e0i \u0111\u1eb7t m\u1edbi, h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 10-Gigabit \u1edf kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 100 m\u00e9t. Trong khi Cat6 \u0111\u1ee7 cho nhu c\u1ea7u 1-Gigabit hi\u1ec7n t\u1ea1i, Cat6A \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng lai cho vi\u1ec7c c\u00e0i \u0111\u1eb7t trong 10\u201315 n\u0103m t\u1edbi v\u1edbi chi ph\u00ed cao h\u01a1n m\u1ed9t ch\u00fat. C\u00e1c \u0111\u01b0\u1eddng c\u00e1p quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n (gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 ho\u1eb7c t\u1ea7ng) v\u00e0 cho c\u00e1c k\u1ebft n\u1ed1i \u0111\u1ebfn m\u00e1y ch\u1ee7 ho\u1eb7c li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng m\u1ea1ng n\u01a1i b\u0103ng th\u00f4ng t\u1ed1i \u0111a l\u00e0 quan tr\u1ecdng.<\/p>\n\n\n

B\u1ea3ng v\u00e1 v\u00e0 qu\u1ea3n l\u00fd c\u00e1p<\/strong><\/h4>\n\n\n

C\u00e1p c\u1ea5u tr\u00fac k\u1ebft th\u00fac t\u1ea1i c\u00e1c b\u1ea3ng v\u00e1 trong t\u1ee7 m\u1ea1ng c\u1ee7a b\u1ea1n, cung c\u1ea5p c\u00e1c \u0111i\u1ec3m k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c, g\u1eafn nh\u00e3n. Qu\u1ea3n l\u00fd c\u00e1p \u0111\u00fang c\u00e1ch, gi\u00e1 \u0111\u1ee1, khay c\u00e1p, v\u00e0 g\u1eafn nh\u00e3n, c\u00f3 v\u1ebb t\u1ebb nh\u1ea1t nh\u01b0ng ti\u1ebft ki\u1ec7m r\u1ea5t nhi\u1ec1u th\u1eddi gian trong qu\u00e1 tr\u00ecnh kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 b\u1ea3o tr\u00ec.<\/p>\n\n\n

B\u01b0\u1edbc 4: C\u00e0i \u0111\u1eb7t v\u00e0 \u0111i d\u00e2y<\/h2>\n\n\n

Giai \u0111o\u1ea1n c\u00e0i \u0111\u1eb7t v\u1eadt l\u00fd mang thi\u1ebft k\u1ebf v\u00e0o cu\u1ed9c s\u1ed1ng. \u0110\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 th\u1ee9 g\u00ec ngo\u00e0i m\u1ed9t thi\u1ebft l\u1eadp v\u0103n ph\u00f2ng gia \u0111\u00ecnh \u0111\u01a1n gi\u1ea3n, c\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb m\u1ea1nh m\u1ebd, c\u00e1p kh\u00f4ng \u0111\u00fang c\u00e1ch r\u1ea5t kh\u00f3 v\u00e0 t\u1ed1n k\u00e9m \u0111\u1ec3 s\u1eeda ch\u1eefa sau khi t\u01b0\u1eddng \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00f3ng l\u1ea1i.<\/p>\n\n\n

Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u1ec1 \u0111i d\u00e2y<\/h3>\n\n\n

Ch\u1ea1y c\u00e1p tr\u00e1nh xa d\u00e2y \u0111i\u1ec7n v\u00e0 ngu\u1ed3n nhi\u1ec5u \u0111i\u1ec7n t\u1eeb. Duy tr\u00ec b\u00e1n k\u00ednh u\u1ed1n cong \u0111\u00fang cho t\u1ea5t c\u1ea3 c\u00e1c c\u00e1p (kh\u00f4ng c\u00f3 n\u1ebfp g\u1ea5p s\u1eafc nh\u1ecdn). S\u1eed d\u1ee5ng c\u00e1p \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng plenum trong kh\u00f4ng gian tr\u00ean tr\u1ea7n th\u1ea3 (y\u00eau c\u1ea7u b\u1edfi m\u00e3 l\u1eeda trong h\u1ea7u h\u1ebft c\u00e1c khu v\u1ef1c ph\u00e1p l\u00fd). G\u1eafn nh\u00e3n m\u1ecdi c\u00e1p \u1edf c\u1ea3 hai \u0111\u1ea7u v\u1edbi m\u1ed9t quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean nh\u1ea5t qu\u00e1n. K\u1ebft th\u00fac t\u1ea5t c\u1ea3 c\u00e1c c\u00e1p t\u1ea1i b\u1ea3ng v\u00e1 thay v\u00ec ch\u1ea1y tr\u1ef1c ti\u1ebfp \u0111\u1ebfn thi\u1ebft b\u1ecb. Ki\u1ec3m tra m\u1ecdi \u0111\u01b0\u1eddng c\u00e1p b\u1eb1ng m\u00e1y ch\u1ee9ng nh\u1eadn c\u00e1p, kh\u00f4ng ch\u1ec9 l\u00e0 m\u00e1y ki\u1ec3m tra li\u00ean t\u1ee5c, \u0111\u1ec3 x\u00e1c minh n\u00f3 \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt Cat6 ho\u1eb7c Cat6A.<\/p>\n\n\n

V\u1ecb tr\u00ed \u0111\u1eb7t \u0111i\u1ec3m truy c\u1eadp<\/h3>\n\n\n

G\u1eafn \u0111i\u1ec3m truy c\u1eadp tr\u00ean tr\u1ea7n ho\u1eb7c cao tr\u00ean t\u01b0\u1eddng, n\u1eb1m \u1edf v\u1ecb tr\u00ed trung t\u00e2m so v\u1edbi c\u00e1c thi\u1ebft b\u1ecb m\u00e0 ch\u00fang ph\u1ee5c v\u1ee5. Tr\u00e1nh \u0111\u1eb7t ch\u00fang g\u1ea7n \u1ed1ng d\u1eabn kim lo\u1ea1i, t\u01b0\u1eddng b\u00ea t\u00f4ng d\u00e0y, ho\u1eb7c trong c\u00e1c ph\u00f2ng k\u00edn. \u0110\u1ed1i v\u1edbi c\u00e1c t\u00f2a nh\u00e0 nhi\u1ec1u t\u1ea7ng, x\u1ebfp ch\u1ed3ng c\u00e1c \u0111i\u1ec3m truy c\u1eadp theo chi\u1ec1u d\u1ecdc \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nhi\u1ec5u gi\u1eefa c\u00e1c t\u1ea7ng.<\/p>\n\n\n

C\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p so v\u1edbi t\u1ef1 l\u00e0m<\/h3>\n\n\n

C\u00e1c m\u1ea1ng nh\u1ecf (d\u01b0\u1edbi 10 \u0111i\u1ec3m) trong kh\u00f4ng gian \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 t\u1ef1 c\u00e0i \u0111\u1eb7t. B\u1ea5t k\u1ef3 th\u1ee9 g\u00ec l\u1edbn h\u01a1n, ho\u1eb7c b\u1ea5t k\u1ef3 th\u1ee9 g\u00ec li\u00ean quan \u0111\u1ebfn ch\u1ea1y c\u00e1p tr\u1ea7n, nhi\u1ec1u t\u1ea7ng, ho\u1eb7c y\u00eau c\u1ea7u tu\u00e2n th\u1ee7, n\u00ean \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p. C\u00e0i \u0111\u1eb7t m\u1ea1ng chuy\u00ean nghi\u1ec7p cho m\u1ed9t doanh nghi\u1ec7p nh\u1ecf th\u01b0\u1eddng c\u00f3 gi\u00e1 t\u1eeb $5,000\u2013$15,000 cho 10\u201350 ng\u01b0\u1eddi d\u00f9ng, bao g\u1ed3m ph\u1ea7n c\u1ee9ng, c\u00e1p, v\u00e0 c\u1ea5u h\u00ecnh. M\u1eb7c d\u00f9 \u0111\u00f3 l\u00e0 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 \u0111\u00e1ng k\u1ec3, chi ph\u00ed kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 s\u1eeda ch\u1eefa m\u1ed9t c\u00e0i \u0111\u1eb7t t\u1ef1 l\u00e0m k\u00e9m th\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 s\u1ed1 ti\u1ec1n ti\u1ebft ki\u1ec7m.<\/p>\n\n\n

B\u01b0\u1edbc 5: C\u1ea5u h\u00ecnh v\u00e0 b\u1ea3o m\u1eadt<\/h2>\n\n\n

Ph\u1ea7n c\u1ee9ng \u0111\u00e3 c\u00f3, m\u1ea1ng c\u1ea7n \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh v\u00e0 b\u1ea3o m\u1eadt tr\u01b0\u1edbc khi ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n

C\u1ea5u h\u00ecnh c\u1ea7n thi\u1ebft<\/h3>\n\n\n

C\u1ea5u h\u00ecnh VLAN \u0111\u1ec3 ph\u00e2n \u0111o\u1ea1n l\u01b0u l\u01b0\u1ee3ng (m\u00e1y tr\u1ea1m, VoIP, kh\u00e1ch, IoT). Thi\u1ebft l\u1eadp ph\u1ea1m vi DHCP v\u1edbi c\u00e1c d\u1ea3i \u0111\u1ecba ch\u1ec9 ph\u00f9 h\u1ee3p cho m\u1ed7i m\u1ea1ng con. C\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda v\u1edbi c\u00e1c quy t\u1eafc t\u1eeb ch\u1ed1i theo m\u1eb7c \u0111\u1ecbnh, ch\u1ec9 cho ph\u00e9p l\u01b0u l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft r\u00f5 r\u00e0ng. Thi\u1ebft l\u1eadp VPN cho truy c\u1eadp t\u1eeb xa<\/a> (IPSec ho\u1eb7c WireGuard cho site-to-site, SSL VPN cho ng\u01b0\u1eddi d\u00f9ng c\u00e1 nh\u00e2n). C\u1ea5u h\u00ecnh m\u1ea1ng kh\u00f4ng d\u00e2y v\u1edbi m\u00e3 h\u00f3a WPA3 (WPA2 t\u1ed1i thi\u1ec3u), SSID ri\u00eang cho truy c\u1eadp doanh nghi\u1ec7p v\u00e0 kh\u00e1ch, v\u00e0 l\u1ecdc MAC khi ph\u00f9 h\u1ee3p. K\u00edch ho\u1ea1t ghi nh\u1eadt k\u00fd v\u00e0 gi\u00e1m s\u00e1t tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<\/p>\n\n\n

Nguy\u00ean t\u1eafc Zero Trust<\/h3>\n\n\n

B\u1ea3o m\u1eadt m\u1ea1ng hi\u1ec7n \u0111\u1ea1i \u0111ang chuy\u1ec3n sang m\u00f4 h\u00ecnh zero trust, gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng kh\u00f4ng ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c thi\u1ebft b\u1ecb n\u00e0o n\u00ean \u0111\u01b0\u1ee3c tin t\u01b0\u1edfng theo m\u1eb7c \u0111\u1ecbnh, b\u1ea5t k\u1ec3 h\u1ecd c\u00f3 b\u00ean trong hay b\u00ean ngo\u00e0i chu vi m\u1ea1ng. Trong th\u1ef1c t\u1ebf, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 y\u00eau c\u1ea7u x\u00e1c th\u1ef1c cho m\u1ecdi y\u00eau c\u1ea7u truy c\u1eadp, ph\u00e2n \u0111o\u1ea1n m\u1ea1ng \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb b\u1ecb x\u00e2m nh\u1eadp kh\u00f4ng th\u1ec3 di chuy\u1ec3n ngang, s\u1eed d\u1ee5ng x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 cho truy c\u1eadp qu\u1ea3n tr\u1ecb v\u00e0 VPN, li\u00ean t\u1ee5c gi\u00e1m s\u00e1t h\u00e0nh vi b\u1ea5t th\u01b0\u1eddng, v\u00e0 \u00e1p d\u1ee5ng nguy\u00ean t\u1eafc quy\u1ec1n t\u1ed1i thi\u1ec3u cho t\u1ea5t c\u1ea3 truy c\u1eadp m\u1ea1ng.<\/p>\n\n\n\n

Zero trust kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ea1i tu ho\u00e0n to\u00e0n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng. Tri\u1ec3n khai ph\u00e2n \u0111o\u1ea1n m\u1ea1ng, MFA, v\u00e0 gi\u00e1m s\u00e1t li\u00ean t\u1ee5c \u0111\u01b0a b\u1ea1n \u0111\u1ebfn h\u1ea7u h\u1ebft c\u00e1c b\u01b0\u1edbc v\u1edbi ph\u1ea7n c\u1ee9ng hi\u1ec7n c\u00f3.<\/p>\n\n\n

Th\u1ef1c h\u00e0nh b\u1ea3o m\u1eadt li\u00ean t\u1ee5c<\/h3>\n\n\n

B\u1ea3o m\u1eadt kh\u00f4ng ph\u1ea3i l\u00e0 c\u1ea5u h\u00ecnh m\u1ed9t l\u1ea7n, m\u00e0 l\u00e0 li\u00ean t\u1ee5c. Gi\u1eef t\u01b0\u1eddng l\u1eeda <\/a>v\u00e0 firmware switch \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt. Ch\u1ea1y qu\u00e9t l\u1ed7 h\u1ed5ng th\u01b0\u1eddng xuy\u00ean. Ti\u1ebfn h\u00e0nh \u0111\u00e1nh gi\u00e1 truy c\u1eadp \u0111\u1ecbnh k\u1ef3. \u0110\u00e0o t\u1ea1o nh\u00e2n vi\u00ean v\u1ec1 l\u1eeba \u0111\u1ea3o v\u00e0 k\u1ef9 thu\u1eadt x\u00e3 h\u1ed9i. Duy tr\u00ec k\u1ebf ho\u1ea1ch ph\u1ea3n \u1ee9ng s\u1ef1 c\u1ed1 cho khi (kh\u00f4ng ph\u1ea3i n\u1ebfu) c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 sai.<\/p>\n\n\n

B\u01b0\u1edbc 6: Ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn<\/h2>\n\n\n

Tr\u01b0\u1edbc khi tuy\u00ean b\u1ed1 m\u1ea1ng ho\u1ea1t \u0111\u1ed9ng, ki\u1ec3m tra m\u1ecdi th\u1ee9 m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng. X\u00e1c minh m\u1ecdi \u0111\u01b0\u1eddng c\u00e1p \u0111\u00e1p \u1ee9ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. X\u00e1c nh\u1eadn r\u1eb1ng m\u1ecdi thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 truy c\u1eadp internet v\u00e0 t\u00e0i nguy\u00ean n\u1ed9i b\u1ed9. Ki\u1ec3m tra ph\u1ee7 s\u00f3ng kh\u00f4ng d\u00e2y \u1edf t\u1ea5t c\u1ea3 c\u00e1c khu v\u1ef1c v\u1edbi c\u00f4ng c\u1ee5 kh\u1ea3o s\u00e1t \u0111\u1ecba \u0111i\u1ec3m. X\u00e1c minh k\u1ebft n\u1ed1i VPN t\u1eeb c\u00e1c \u0111\u1ecba \u0111i\u1ec3m t\u1eeb xa. Ki\u1ec3m tra chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng n\u1ebfu c\u00f3 k\u1ebft n\u1ed1i internet d\u1ef1 ph\u00f2ng. Ch\u1ea1y ki\u1ec3m tra b\u0103ng th\u00f4ng \u0111\u1ec3 x\u00e1c nh\u1eadn b\u1ea1n \u0111ang nh\u1eadn \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 m\u00e0 ph\u1ea7n c\u1ee9ng v\u00e0 ISP c\u1ee7a b\u1ea1n n\u00ean cung c\u1ea5p. T\u00e0i li\u1ec7u c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t c\u01a1 b\u1ea3n \u0111\u1ec3 so s\u00e1nh trong t\u01b0\u01a1ng lai.<\/p>\n\n\n

B\u01b0\u1edbc 7: Gi\u00e1m s\u00e1t v\u00e0 b\u1ea3o tr\u00ec<\/h2>\n\n\n

M\u1ed9t m\u1ea1ng kh\u00f4ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t l\u00e0 m\u1ed9t m\u1ea1ng \u0111ang ch\u1edd th\u1ea5t b\u1ea1i.<\/p>\n\n\n

Gi\u00e1m s\u00e1t m\u1ea1ng<\/h3>\n\n\n

Tri\u1ec3n khai c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t theo d\u00f5i vi\u1ec7c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng v\u00e0 m\u00f4 h\u00ecnh l\u01b0u l\u01b0\u1ee3ng, s\u1ee9c kh\u1ecfe v\u00e0 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb, s\u1ef1 ki\u1ec7n b\u1ea3o m\u1eadt v\u00e0 b\u1ea5t th\u01b0\u1eddng, v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u kh\u00f4ng d\u00e2y v\u00e0 k\u1ebft n\u1ed1i kh\u00e1ch h\u00e0ng. C\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 PRTG, Zabbix, ho\u1eb7c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n qu\u1ea3n l\u00fd \u0111\u00e1m m\u00e2y t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p m\u1ea1ng cung c\u1ea5p kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb th\u1eddi gian th\u1ef1c v\u00e0o s\u1ee9c kh\u1ecfe m\u1ea1ng. \u0110\u1eb7t c\u1ea3nh b\u00e1o cho c\u00e1c ng\u01b0\u1ee1ng ch\u1ec9 ra v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi ch\u00fang g\u00e2y ra s\u1ef1 c\u1ed1.<\/p>\n\n\n

L\u1ecbch tr\u00ecnh b\u1ea3o tr\u00ec<\/h3>\n\n\n

H\u00e0ng th\u00e1ng, xem x\u00e9t nh\u1eadt k\u00fd v\u00e0 c\u1eadp nh\u1eadt firmware. H\u00e0ng qu\u00fd, ki\u1ec3m to\u00e1n ki\u1ec3m so\u00e1t truy c\u1eadp, xem x\u00e9t quy t\u1eafc t\u01b0\u1eddng l\u1eeda, v\u00e0 ki\u1ec3m tra quy tr\u00ecnh sao l\u01b0u v\u00e0 kh\u00f4i ph\u1ee5c. H\u00e0ng n\u0103m, ti\u1ebfn h\u00e0nh \u0111\u00e1nh gi\u00e1 b\u1ea3o m\u1eadt to\u00e0n di\u1ec7n, xem x\u00e9t kh\u1ea3 n\u0103ng m\u1ea1ng so v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n, v\u00e0 \u0111\u00e1nh gi\u00e1 xem c\u00f3 c\u1ea7n n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f4ng.<\/p>\n\n\n\n

C\u00e1c m\u1ea1ng \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec t\u1ed1t k\u00e9o d\u00e0i 7\u201310 n\u0103m tr\u01b0\u1edbc khi y\u00eau c\u1ea7u chu k\u1ef3 l\u00e0m m\u1edbi l\u1edbn. C\u00e1c m\u1ea1ng b\u1ecb b\u1ecf b\u00ea xu\u1ed1ng c\u1ea5p nhanh h\u01a1n nhi\u1ec1u.<\/p>\n\n\n

T\u1ed5ng quan chi ph\u00ed cho c\u00e0i \u0111\u1eb7t m\u1ea1ng doanh nghi\u1ec7p nh\u1ecf<\/h2>\n\n\n
Th\u00e0nh ph\u1ea7n<\/th>Ph\u1ea1m vi chi ph\u00ed \u0111i\u1ec3n h\u00ecnh<\/th><\/tr><\/thead>
Router\/t\u01b0\u1eddng l\u1eeda<\/td>$500\u2013$2,500<\/td><\/tr>
Switch qu\u1ea3n l\u00fd (v\u1edbi PoE)<\/td>$200\u2013$1,500 m\u1ed7i \u0111\u01a1n v\u1ecb<\/td><\/tr>
\u0110i\u1ec3m truy c\u1eadp kh\u00f4ng d\u00e2y (Wi-Fi 6)<\/td>$125\u2013$400 m\u1ed7i c\u00e1i<\/td><\/tr>
C\u00e1p c\u1ea5u tr\u00fac (Cat6A)<\/td>$150\u2013$250 m\u1ed7i \u0111i\u1ec3m<\/td><\/tr>
B\u1ea3ng v\u00e1, gi\u00e1 \u0111\u1ee1, qu\u1ea3n l\u00fd<\/td>$500\u2013$2,000<\/td><\/tr>
Lao \u0111\u1ed9ng c\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p<\/td>$1,500\u2013$5,000+<\/td><\/tr>
T\u1ed5ng c\u1ed9ng (v\u0103n ph\u00f2ng 10\u201350 ng\u01b0\u1eddi d\u00f9ng)<\/strong><\/td>$5,000\u2013$15,000<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Chi ph\u00ed h\u00e0ng n\u0103m cho gi\u00e1m s\u00e1t, b\u1ea3o tr\u00ec, \u0111\u0103ng k\u00fd b\u1ea3o m\u1eadt, v\u00e0 d\u1ecbch v\u1ee5 ISP th\u01b0\u1eddng th\u00eam $1,500\u2013$4,000.<\/p>\n\n\n

C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p<\/h2>\n\n

C\u00e0i \u0111\u1eb7t m\u1ea1ng l\u00e0 g\u00ec?<\/h3>\n\n\n

C\u00e0i \u0111\u1eb7t m\u1ea1ng l\u00e0 qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf, tri\u1ec3n khai, v\u00e0 c\u1ea5u h\u00ecnh ph\u1ea7n c\u1ee9ng (router, switch, \u0111i\u1ec3m truy c\u1eadp, c\u00e1p) v\u00e0 ph\u1ea7n m\u1ec1m (quy t\u1eafc t\u01b0\u1eddng l\u1eeda, DHCP, VLAN, gi\u00e1m s\u00e1t) cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb giao ti\u1ebfp, chia s\u1ebb d\u1eef li\u1ec7u, v\u00e0 truy c\u1eadp internet. N\u00f3 bao g\u1ed3m m\u1ecdi th\u1ee9 t\u1eeb \u0111i d\u00e2y v\u1eadt l\u00fd \u0111\u1ebfn c\u1ea5u h\u00ecnh logic v\u00e0 tri\u1ec3n khai b\u1ea3o m\u1eadt.<\/p>\n\n\n

C\u00e0i \u0111\u1eb7t m\u1ea1ng m\u1ea5t bao l\u00e2u?<\/h3>\n\n\n

Thi\u1ebft l\u1eadp v\u0103n ph\u00f2ng nh\u1ecf (10\u201315 ng\u01b0\u1eddi d\u00f9ng) c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh trong 1\u20133 ng\u00e0y. C\u00e0i \u0111\u1eb7t quy m\u00f4 trung b\u00ecnh (25\u201350 ng\u01b0\u1eddi d\u00f9ng, nhi\u1ec1u t\u1ea7ng) th\u01b0\u1eddng m\u1ea5t 1\u20132 tu\u1ea7n. Tri\u1ec3n khai l\u1edbn ho\u1eb7c nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m c\u00f3 th\u1ec3 m\u1ea5t t\u1eeb v\u00e0i tu\u1ea7n \u0111\u1ebfn v\u00e0i th\u00e1ng t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 ph\u1ee9c t\u1ea1p, y\u00eau c\u1ea7u x\u00e2y d\u1ef1ng, v\u00e0 ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c ng\u00e0nh ngh\u1ec1 kh\u00e1c.<\/p>\n\n\n

Chi ph\u00ed c\u00e0i \u0111\u1eb7t m\u1ea1ng doanh nghi\u1ec7p l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n

\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c doanh nghi\u1ec7p nh\u1ecf v\u1edbi 10\u201350 nh\u00e2n vi\u00ean, t\u1ed5ng chi ph\u00ed dao \u0111\u1ed9ng t\u1eeb $5,000 \u0111\u1ebfn $15,000, bao g\u1ed3m ph\u1ea7n c\u1ee9ng, c\u00e1p, v\u00e0 c\u00e0i \u0111\u1eb7t chuy\u00ean nghi\u1ec7p. Tri\u1ec3n khai ph\u1ee9c t\u1ea1p nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m ho\u1eb7c doanh nghi\u1ec7p c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 $20,000. B\u1ea3o tr\u00ec v\u00e0 gi\u00e1m s\u00e1t h\u00e0ng n\u0103m th\u00eam $1,500\u2013$4,000.<\/p>\n\n\n

T\u00f4i n\u00ean s\u1eed d\u1ee5ng m\u1ea1ng c\u00f3 d\u00e2y hay kh\u00f4ng d\u00e2y?<\/h3>\n\n\n

C\u1ea3 hai. H\u1ea7u h\u1ebft c\u00e1c doanh nghi\u1ec7p h\u01b0\u1edfng l\u1ee3i t\u1eeb c\u00e1ch ti\u1ebfp c\u1eadn lai: Ethernet c\u00f3 d\u00e2y cho c\u00e1c thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh (m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n, m\u00e1y ch\u1ee7, \u0111i\u1ec7n tho\u1ea1i, camera) v\u00e0 Wi-Fi cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng (m\u00e1y t\u00ednh x\u00e1ch tay, m\u00e1y t\u00ednh b\u1ea3ng, \u0111i\u1ec7n tho\u1ea1i) v\u00e0 truy c\u1eadp kh\u00e1ch. K\u1ebft n\u1ed1i c\u00f3 d\u00e2y nhanh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n; kh\u00f4ng d\u00e2y cung c\u1ea5p s\u1ef1 linh ho\u1ea1t v\u00e0 ti\u1ec7n l\u1ee3i.<\/p>\n\n\n

T\u00f4i n\u00ean s\u1eed d\u1ee5ng lo\u1ea1i c\u00e1p n\u00e0o cho m\u1ed9t c\u00e0i \u0111\u1eb7t m\u1edbi?<\/h3>\n\n\n

Cat6A l\u00e0 ti\u00eau chu\u1ea9n khuy\u1ebfn ngh\u1ecb cho c\u00e1c c\u00e0i \u0111\u1eb7t m\u1edbi v\u00e0o n\u0103m 2025\u20132026. N\u00f3 h\u1ed7 tr\u1ee3 Ethernet 10-Gigabit \u1edf kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 100 m\u00e9t, \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng lai cho c\u00e1p c\u1ee7a b\u1ea1n trong 10\u201315 n\u0103m t\u1edbi. Cat6 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c cho c\u00e1c d\u1ef1 \u00e1n b\u1ecb h\u1ea1n ch\u1ebf ng\u00e2n s\u00e1ch nh\u01b0ng gi\u1edbi h\u1ea1n c\u00e1c \u0111\u01b0\u1eddng n\u00e2ng c\u1ea5p trong t\u01b0\u01a1ng lai. C\u00e1p quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng v\u00e0 c\u00e1c \u0111\u01b0\u1eddng d\u00e0i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0.<\/p>\n\n\n

Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n\n\n

C\u00e0i \u0111\u1eb7t m\u1ea1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u00f3 c\u1ea5u tr\u00fac th\u00e0nh c\u00f4ng ho\u1eb7c th\u1ea5t b\u1ea1i d\u1ef1a tr\u00ean l\u1eadp k\u1ebf ho\u1ea1ch. B\u1eaft \u0111\u1ea7u v\u1edbi \u0111\u00e1nh gi\u00e1 k\u1ef9 l\u01b0\u1ee1ng v\u1ec1 nhu c\u1ea7u kinh doanh v\u00e0 kh\u1ea3o s\u00e1t \u0111\u1ecba \u0111i\u1ec3m th\u1ef1c t\u1ebf. Thi\u1ebft k\u1ebf cho s\u1ef1 ph\u00e1t tri\u1ec3n, c\u00e1p v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00f3 th\u1ec3 x\u1eed l\u00fd 3\u20135 n\u0103m m\u1edf r\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf. Ch\u1ecdn ph\u1ea7n c\u1ee9ng c\u1ea5p doanh nghi\u1ec7p h\u1ed7 tr\u1ee3 qu\u1ea3n l\u00fd, gi\u00e1m s\u00e1t, v\u00e0 c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt. Tri\u1ec3n khai b\u1ea3o m\u1eadt t\u1eeb ng\u00e0y \u0111\u1ea7u ti\u00ean v\u1edbi ph\u00e2n \u0111o\u1ea1n, m\u00e3 h\u00f3a, v\u00e0 nguy\u00ean t\u1eafc zero trust<\/a> . Ki\u1ec3m tra m\u1ecdi th\u1ee9 tr\u01b0\u1edbc khi ho\u1ea1t \u0111\u1ed9ng, sau \u0111\u00f3 gi\u00e1m s\u00e1t li\u00ean t\u1ee5c.<\/p>\n\n\n\n

\u0110\u1ea7u t\u01b0 ban \u0111\u1ea7u v\u00e0o m\u1ed9t m\u1ea1ng \u0111\u01b0\u1ee3c l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 c\u00e0i \u0111\u1eb7t \u0111\u00fang c\u00e1ch t\u1ef1 tr\u1ea3 cho m\u00ecnh th\u00f4ng qua gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, chi ph\u00ed b\u1ea3o tr\u00ec th\u1ea5p h\u01a1n, b\u1ea3o m\u1eadt m\u1ea1nh h\u01a1n, v\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng th\u00edch \u1ee9ng khi doanh nghi\u1ec7p c\u1ee7a b\u1ea1n ph\u00e1t tri\u1ec3n.<\/p>","protected":false},"excerpt":{"rendered":"

H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e0i \u0111\u1eb7t m\u1ea1ng cho doanh nghi\u1ec7p, bao g\u1ed3m l\u1eadp k\u1ebf ho\u1ea1ch, l\u1ef1a ch\u1ecdn ph\u1ea7n c\u1ee9ng, ti\u00eau chu\u1ea9n c\u00e1p, c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt, nguy\u00ean t\u1eafc kh\u00f4ng tin t\u01b0\u1edfng, v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng l\u00e2u d\u00e0i. H\u1ecdc c\u00e1ch x\u00e2y d\u1ef1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng \u0111\u00e1ng tin c\u1eady, an to\u00e0n v\u00e0 s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai.<\/p>","protected":false},"author":3,"featured_media":5320,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-5319","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-networks","entry"],"yoast_head":"\nNetwork Installation Guide: How to Build a Scalable, Secure Business Network | Security Briefing<\/title>\n<meta name=\"description\" content=\"A complete guide to network installation for businesses, covering planning, hardware selection, cabling standards, security configuration, zero trust principles, and long-term scalability. 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