{"id":10026,"date":"2022-11-08T13:18:42","date_gmt":"2022-11-08T06:18:42","guid":{"rendered":""},"modified":"2024-07-01T16:46:58","modified_gmt":"2024-07-01T09:46:58","slug":"cach-dinh-cau-hinh-cai-dat-tuong-lua-va-chong-ddos","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/cach-dinh-cau-hinh-cai-dat-tuong-lua-va-chong-ddos\/","title":{"rendered":"C\u00e1ch \u0110\u1ecbnh C\u1ea5u H\u00ecnh C\u00e0i \u0110\u1eb7t T\u01b0\u1eddng L\u1eeda v\u00e0 Ch\u1ed1ng DDoS"},"content":{"rendered":"

\u0110\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y ch\u1ee7 c\u1ee7a kh\u00e1ch h\u00e0ng, VNSO cung c\u1ea5p t\u01b0\u1eddng l\u1eeda<\/span>\u00a0ch\u1ed1ng DDoS<\/span>.\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t t\u00f9y ch\u1ecdn s\u1ebd cho ph\u00e9p b\u1ea1n gi\u1edbi h\u1ea1n m\u1ee9c \u0111\u1ed9 m\u00e0 d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n ti\u1ebfp x\u00fac v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb\u00a0m\u1ea1ng c\u00f4ng c\u1ed9ng.\u00a0<\/span><\/span><\/span><\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd \u0111\u01b0a b\u1ea1n qua c\u00e1c b\u01b0\u1edbc \u0111\u1ec3\u00a0c\u1ea5u h\u00ecnh\u00a0n\u00f3<\/strong><\/h2>\n

\"\"<\/p>\n

Y\u00eau c\u1ea7u<\/strong><\/h2>\n

– B\u1ea1n ph\u1ea3i c\u00f3 d\u1ecbch v\u1ee5 OVHcloud v\u1edbi T\u01b0\u1eddng l\u1eeda m\u1ea1ng ( M\u00e1y ch\u1ee7 chuy\u00ean d\u1ee5ng,VPS, cloud server ri\u00eang v\u00e0 chung,<\/a> IP\u00a0b\u1ed5 sung, v.v.)<\/p>\n

– B\u1ea1n ph\u1ea3i c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a m\u00ecnh<\/p>\n

– B\u1ea1n ph\u1ea3i c\u00f3 c\u00e1c k\u1ef9 n\u0103ng m\u1ea1ng c\u01a1 b\u1ea3n<\/p>\n

H\u01b0\u1edbng d\u1eabn<\/strong><\/h2>\n

B\u1eadt t\u01b0\u1eddng l\u1eeda m\u1ea1ng<\/strong><\/h3>\n

T\u01b0\u1eddng l\u1eeda m\u1ea1ng b\u1ea3o v\u1ec7 c\u00e1c IP \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi m\u1ed9t m\u00e1y.\u00a0Do \u0111\u00f3, b\u1ea1n ph\u1ea3i c\u1ea5u h\u00ecnh t\u1eebng\u00a0IP\u00a0ri\u00eang bi\u1ec7t,\u00a0kh\u00f4ng th\u1ec3 c\u1ea5u h\u00ecnh to\u00e0n b\u1ed9 m\u00e1y ch\u1ee7.<\/p>\n

Trong ph\u1ea7n n\u00e0y, ch\u00fang ta s\u1ebd t\u1ea1o m\u1ed9t VMAC (\u0111\u1ecba ch\u1ec9 MAC \u1ea3o) \u0111\u1ec3 s\u1eed d\u1ee5ng b\u1edfi NIC (Th\u1ebb giao di\u1ec7n m\u1ea1ng) m\u00e0 ESXi g\u00e1n cho m\u1ed9t m\u00e1y \u1ea3o.\u00a0\u0110\u1ec3 b\u1eaft \u0111\u1ea7u, h\u00e3y \u0111\u0103ng nh\u1eadp v\u00e0o\u00a0b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.\u00a0Tr\u00ean thanh b\u00ean b\u00ean tr\u00e1i, h\u00e3y nh\u1ea5p v\u00e0o t\u00f9y ch\u1ecdn\u00a0Network<\/strong>.<\/p>\n

\"\"<\/p>\n

Ti\u1ebfp theo, nh\u1ea5p v\u00e0o\u00a0Public IP Addresses<\/span><\/strong>.<\/span><\/p>\n

\"\"<\/p>\n

\u0110i\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP m\u00e0 b\u1ea1n mu\u1ed1n \u0111\u1ecbnh c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda.\u00a0Sau \u0111\u00f3, nh\u1ea5p v\u00e0o\u00a0…<\/strong>\u00a0\u1edf b\u00ean ph\u1ea3i \u0111\u1ecba ch\u1ec9 IP v\u00e0 ch\u1ecdn\u00a0Create Firewall<\/strong> t\u1eeb tr\u00ecnh \u0111\u01a1n th\u1ea3 xu\u1ed1ng.<\/p>\n

\"\"<\/p>\n

Sau \u0111\u00f3, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u x\u00e1c nh\u1eadn<\/p>\n

\"\"<\/p>\n

Sau \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 nh\u1ea5p m\u1ed9t l\u1ea7n n\u1eefa v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng b\u00e1nh r\u0103ng b\u00ean c\u1ea1nh IPv4: Enable the firewall\u00a0\u00a0Configure the Firewall.<\/em><\/p>\n

\"\"<\/p>\n

B\u1ea1n c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp t\u1ed1i \u0111a\u00a020 quy t\u1eafc cho m\u1ed7i\u00a0<\/strong>IP<\/strong>.\u00a0\u00a0<\/strong><\/p>\n

T\u01b0\u1eddng l\u1eeda \u0111\u01b0\u1ee3c b\u1eadt t\u1ef1 \u0111\u1ed9ng sau m\u1ed7i cu\u1ed9c t\u1ea5n c\u00f4ng DDoS. Kh\u00f4ng th\u1ec3 b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a tr\u01b0\u1edbc khi cu\u1ed9c t\u1ea5n c\u00f4ng k\u1ebft th\u00fac. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i c\u1eadp nh\u1eadt c\u00e1c quy t\u1eafc t\u01b0\u1eddng l\u1eeda. L\u00e0 c\u00e0i \u0111\u1eb7t m\u1eb7c \u0111\u1ecbnh, b\u1ea1n kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 quy t\u1eafc n\u00e0o \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ea5u h\u00ecnh. V\u00ec v\u1eady, t\u1ea5t c\u1ea3 c\u00e1c k\u1ebft n\u1ed1i \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp. N\u1ebfu b\u1ea1n c\u00f3 b\u1ea5t k\u1ef3 quy t\u1eafc n\u00e0o, h\u00e3y nh\u1edb ki\u1ec3m tra c\u00e1c quy t\u1eafc t\u01b0\u1eddng l\u1eeda c\u1ee7a b\u1ea1n th\u01b0\u1eddng xuy\u00ean, ngay c\u1ea3 khi b\u1ea1n v\u00f4 hi\u1ec7u h\u00f3a n\u00f3.<\/p>\n

– Ph\u00e2n m\u1ea3nh UDP b\u1ecb ch\u1eb7n (DROP) l\u00e0m c\u00e0i \u0111\u1eb7t m\u1eb7c \u0111\u1ecbnh. Khi b\u1ea1n b\u1eadt M\u1ea1ng T\u01b0\u1eddng l\u1eeda, n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng VPN, h\u00e3y nh\u1edb \u0111\u1ecbnh c\u1ea5u h\u00ecnh ch\u00ednh x\u00e1c \u0111\u01a1n v\u1ecb truy\u1ec1n t\u1ea3i t\u1ed1i \u0111a (MTU) c\u1ee7a b\u1ea1n. V\u00ed d\u1ee5, tr\u00ean OpenVPN, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e1nh d\u1ea5u v\u00e0o.\u00a0\u00a0 MTU test<\/strong><\/p>\n

– T\u01b0\u1eddng l\u1eeda m\u1ea1ng kh\u00f4ng \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong m\u1ea1ng. V\u00ec v\u1eady c\u00e1c quy t\u1eafc \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c k\u1ebft n\u1ed1i trong m\u1ea1ng n\u1ed9i b\u1ed9 n\u00e0y.<\/p>\n

\u00a0>>><\/strong> Xem th\u00eam: DDOS l\u00e0 g\u00ec? H\u1ec7 th\u1ed1ng ch\u1ed1ng DDOS<\/a><\/span><\/strong><\/p>\n

C\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda m\u1ea1ng<\/strong><\/h2>\n

\u0110\u1ec3 th\u00eam quy t\u1eafc, h\u00e3y nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o:\u00a0Add a rule<\/strong><\/p>\n

\"\"<\/p>\n

\u0110\u1ed1i v\u1edbi m\u1ed7i quy t\u1eafc, b\u1ea1n ph\u1ea3i\u00a0ch\u1ecdn:<\/p>\n

– \u01afu ti\u00ean (t\u1eeb 0 \u0111\u1ebfn 19, 0 l\u00e0 quy t\u1eafc \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng, ti\u1ebfp theo l\u00e0 c\u00e1c quy t\u1eafc kh\u00e1c)<\/p>\n

– M\u1ed9t h\u00e0nh \u0111\u1ed9ng (Authorizeho\u1eb7c); Refuse<\/p>\n

– Giao th\u1ee9c<\/p>\n

– M\u1ed9t IP (t\u00f9y ch\u1ecdn)<\/p>\n

– C\u1ed5ng ngu\u1ed3n (ch\u1ec9 TCP)<\/p>\n

– C\u1ed5ng \u0111\u00edch (ch\u1ec9 TCP)<\/p>\n

– C\u00e1c t\u00f9y ch\u1ecdn TCP (ch\u1ec9 TCP)<\/p>\n

\"\"<\/p>\n

– \u01afu ti\u00ean 0: Ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean \u1ee7y quy\u1ec1n giao th\u1ee9c TCP tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c IP b\u1eb1ng m\u1ed9t t\u00f9y ch\u1ecdn. T\u00f9y ch\u1ecdn n\u00e0y cho ph\u00e9p b\u1ea1n x\u00e1c minh r\u1eb1ng g\u00f3i \u0111\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a phi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1edf tr\u01b0\u1edbc \u0111\u00f3 (\u0111\u00e3 b\u1eaft \u0111\u1ea7u). N\u1ebfu b\u1ea1n kh\u00f4ng cho ph\u00e9p n\u00f3, m\u00e1y ch\u1ee7 s\u1ebd kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i giao th\u1ee9c TCP t\u1eeb c\u00e1c y\u00eau c\u1ea7u SYN \/ ACK.\u00a0 \u00a0established\u00a0\u00a0established\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><\/p>\n

– \u01afu ti\u00ean 19: t\u1eeb ch\u1ed1i t\u1ea5t c\u1ea3 giao th\u1ee9c IPv4 n\u1ebfu b\u1ea5t k\u1ef3 quy t\u1eafc n\u00e0o tr\u01b0\u1edbc ng\u00e0y 19 (cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3) kh\u00f4ng \u0111\u01b0\u1ee3c \u0111i\u1ec1n v\u00e0o.<\/p>\n

V\u00ed d\u1ee5 v\u1ec1 c\u1ea5u h\u00ecnh<\/strong><\/h2>\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 c\u00e1c c\u1ed5ng\u00a0SSH\u00a0(22),\u00a0HTTP\u00a0(80),\u00a0HTTPS\u00a0(443) v\u00e0\u00a0UDP\u00a0(tr\u00ean c\u1ed5ng 10000) \u0111\u01b0\u1ee3c m\u1edf khi \u1ee7y quy\u1ec1n\u00a0ICMP, b\u1ea1n c\u1ea7n tu\u00e2n theo c\u00e1c quy t\u1eafc\u00a0d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n

\"\"<\/p>\n

C\u00e1c quy t\u1eafc \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 th\u1eddi gian t\u1eeb 0 (quy t\u1eafc \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c \u0111\u1ecdc) \u0111\u1ebfn 19 (quy t\u1eafc cu\u1ed1i c\u00f9ng).\u00a0Chu\u1ed7i ng\u1eebng \u0111\u01b0\u1ee3c qu\u00e9t ngay sau khi m\u1ed9t quy t\u1eafc \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho\u00a0g\u00f3i.<\/p>\n

V\u00ed d\u1ee5: M\u1ed9t g\u00f3i cho c\u1ed5ng TCP 80 s\u1ebd \u0111\u01b0\u1ee3c b\u1eaft b\u1edfi quy t\u1eafc 2. \u0110\u1ed3ng th\u1eddi c\u00e1c quy t\u1eafc sau \u0111\u00f3 s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m tra. M\u1ed9t g\u00f3i cho c\u1ed5ng TCP 25 s\u1ebd ch\u1ec9 \u0111\u01b0\u1ee3c b\u1eaft \u1edf quy t\u1eafc cu\u1ed1i c\u00f9ng (19) s\u1ebd ch\u1eb7n n\u00f3. V\u00ec kh\u00f4ng cho ph\u00e9p giao ti\u1ebfp tr\u00ean c\u1ed5ng 25 trong c\u00e1c quy t\u1eafc tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n

N\u1ebfu t\u00ednh n\u0103ng gi\u1ea3m thi\u1ec3u ch\u1ed1ng DDoS \u0111\u01b0\u1ee3c b\u1eadt, c\u00e1c quy t\u1eafc T\u01b0\u1eddng l\u1eeda m\u1ea1ng c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. \u0110\u1eb7c bi\u1ec7t l\u00e0 ngay c\u1ea3 khi b\u1ea1n \u0111\u00e3 t\u1eaft ch\u00fang. N\u1ebfu b\u1ea1n mu\u1ed1n v\u00f4 hi\u1ec7u h\u00f3a n\u00f3, h\u00e3y nh\u1edb x\u00f3a c\u00e1c quy t\u1eafc c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"

\u0110\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y ch\u1ee7 c\u1ee7a kh\u00e1ch h\u00e0ng, VNSO cung c\u1ea5p t\u01b0\u1eddng l\u1eeda\u00a0ch\u1ed1ng DDoS.\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t t\u00f9y ch\u1ecdn s\u1ebd cho ph\u00e9p b\u1ea1n gi\u1edbi h\u1ea1n m\u1ee9c \u0111\u1ed9 m\u00e0 d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n ti\u1ebfp x\u00fac v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb\u00a0m\u1ea1ng c\u00f4ng c\u1ed9ng.\u00a0 H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd \u0111\u01b0a b\u1ea1n qua c\u00e1c b\u01b0\u1edbc \u0111\u1ec3\u00a0c\u1ea5u h\u00ecnh\u00a0n\u00f3 Y\u00eau c\u1ea7u – […]<\/p>","protected":false},"author":1,"featured_media":11962,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[301],"tags":[303],"yoast_head":"\nC\u00e1ch \u0110\u1ecbnh C\u1ea5u H\u00ecnh C\u00e0i \u0110\u1eb7t T\u01b0\u1eddng L\u1eeda v\u00e0 Ch\u1ed1ng DDoS<\/title>\n<meta name=\"description\" content=\"\u0110\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y ch\u1ee7 c\u1ee7a kh\u00e1ch h\u00e0ng, VNSO cung c\u1ea5p t\u01b0\u1eddng l\u1eeda c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh v\u00e0 t\u00edch h\u1ee3p v\u00e0o gi\u1ea3i ph\u00e1p Ch\u1ed1ng DDoS.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vnso.vn\/en\/cach-dinh-cau-hinh-cai-dat-tuong-lua-va-chong-ddos\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch \u0110\u1ecbnh C\u1ea5u H\u00ecnh C\u00e0i \u0110\u1eb7t T\u01b0\u1eddng L\u1eeda v\u00e0 Ch\u1ed1ng DDoS\" \/>\n<meta property=\"og:description\" content=\"\u0110\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y ch\u1ee7 c\u1ee7a kh\u00e1ch h\u00e0ng, VNSO cung c\u1ea5p t\u01b0\u1eddng l\u1eeda c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh v\u00e0 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