{"id":9835,"date":"2019-11-15T17:12:38","date_gmt":"2019-11-15T10:12:38","guid":{"rendered":""},"modified":"2024-07-17T11:23:21","modified_gmt":"2024-07-17T04:23:21","slug":"tan-cong-ddos-o-tang-ung-dung","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/tan-cong-ddos-o-tang-ung-dung\/","title":{"rendered":"T\u1ea5n c\u00f4ng DDOS \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<h2 style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>1. T\u1ea5n c\u00f4ng DDOS \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">T\u1ea5n c\u00f4ng DDOS \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng hay t\u1ea5n c\u00f4ng DDOS Layer 7 (L7) \u0111\u1ec1 c\u1eadp \u0111\u1ebfn nh\u1eefng h\u00e0nh vi nguy hi\u1ec3m. \u0110\u01b0\u1ee3c l\u00e0m \u0111\u1ec3 t\u1ea5n c\u00f4ng m\u1ee5c ti\u00eau l\u00e0 t\u1ea7ng cao nh\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh OSI. N\u01a1i m\u00e0 c\u00e1c y\u00eau c\u1ea7u ph\u1ed5 bi\u1ebfn tr\u00ean internet nh\u01b0 HTTP GET, HTTP POST di\u1ec5n ra. C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng L7 n\u00e0y tr\u00e1i ng\u01b0\u1ee3c v\u1edbi t\u1ea5n c\u00f4ng v\u00e0o t\u1ea7ng m\u1ea1ng nh\u01b0 t\u1ea5n c\u00f4ng khu\u1ebfch \u0111\u1ea1i DNS. C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng L7 n\u00e0y c\u00f2n c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n do vi\u1ec7c ti\u00eau th\u1ee5 t\u00e0i nguy\u00ean <a style=\"color: #000000;\" href=\"https:\/\/vnso.vn\/en\/thue-may-chu-rieng\/\">m\u00e1y ch\u1ee7.<\/a><\/span><\/p>\n<p style=\"text-align: justify;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-7543\" src=\"https:\/\/vnso.vn\/wp-content\/uploads\/2019\/11\/Ddos-attack.jpg\" alt=\"Ddos-attack-thue-server\" width=\"1920\" height=\"1080\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>2. T\u1ea5n c\u00f4ng \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Hi\u1ec7u qu\u1ea3 c\u01a1 b\u1ea3n c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDOS xu\u1ea5t ph\u00e1t t\u1eeb s\u1ef1 ch\u00eanh l\u1ec7ch t\u00e0i nguy\u00ean c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng v\u00e0 t\u00e0i nguy\u00ean c\u1ee7a n\u1ea1n nh\u00e2n. Trong khi v\u1eabn l\u00e0 cu\u1ed9c t\u1ea5n c\u00f4ng L7, hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c t\u1ea5n c\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 m\u00e1y ch\u1ee7 v\u00e0 m\u1ea1ng. \u0110\u00f2i h\u1ecfi m\u1ed9t l\u01b0\u1ee3ng b\u0103ng th\u00f4ng \u00edt h\u01a1n \u0111\u1ec3 c\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c mong mu\u1ed1n c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng. C\u00f3 th\u1ec3 n\u00f3i \u0111\u01a1n gi\u1ea3n h\u01a1n r\u1eb1ng t\u1ea5n c\u00f4ng L7 c\u00f3 hi\u1ec7u qu\u1ea3 h\u01a1n ch\u1ec9 v\u1edbi \u00edt b\u0103ng th\u00f4ng h\u01a1n.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u0110\u1ec3 t\u00ecm hi\u1ec3u l\u00fd do t\u1ea1i sao l\u1ea1i nh\u01b0 v\u1eady ch\u00fang ta ph\u1ea3i xem \u0111\u1ebfn s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u1ee9c ti\u00eau th\u1ee5 t\u00e0i nguy\u00ean gi\u1eefa ng\u01b0\u1eddi d\u00f9ng khi g\u1eedi request v\u00e0 m\u00e1y ch\u1ee7 ph\u1ea3n h\u1ed3i request \u0111\u00f3. V\u00ed d\u1ee5 nh\u01b0 khi m\u1ed9t ng\u01b0\u1eddi g\u1eedi y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp v\u00e0o Gmail, l\u01b0\u1ee3ng d\u1eef li\u1ec7u v\u00e0 t\u00e0i nguy\u00ean ti\u00eau th\u1ee5 tr\u00ean m\u00e1y ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i s\u1eed d\u1ee5ng r\u1ea5t \u00edt. Kh\u00f4ng \u0111\u00e1ng k\u1ec3 n\u1ebfu so v\u1edbi l\u01b0\u1ee3ng t\u00e0i nguy\u00ean khi m\u00e1y ch\u1ee7 x\u1eed l\u00fd th\u00f4ng tin \u0111\u0103ng nh\u1eadp tr\u00ean m\u00e1y ch\u1ee7.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Ngay c\u1ea3 khi kh\u00f4ng c\u00f3 th\u00f4ng tin \u0111\u0103ng nh\u1eadp, m\u00e1y ch\u1ee7 nh\u1eadn y\u00eau c\u1ea7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng v\u00e0 ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1c y\u00eau c\u1ea7u truy v\u1ea5n \u0111\u1ebfn API, Databases. \u0110\u1ec3 t\u1ea1o trang web v\u00e0 tr\u1ea3 l\u1eddi \u0111\u1ebfn ph\u00eda ng\u01b0\u1eddi d\u00f9ng. Khi s\u1ef1 ch\u00eanh l\u1ec7ch v\u1ec1 t\u00e0i nguy\u00ean n\u00e0y \u0111\u01b0\u1ee3c ph\u00f3ng to do qu\u00e1 nhi\u1ec1u thi\u1ebft b\u1ecb nh\u1eafm \u0111\u1ebfn m\u1ed9t thu\u1ed9c t\u00ednh hay m\u1ee5c ti\u00eau n\u00e0o \u0111\u00f3 tr\u00ean \u1ee9ng d\u1ee5ng nh\u01b0 trong m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng botnet s\u1ebd d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p ch\u1ec9 c\u1ea7n nh\u1eafm \u0111\u1ebfn c\u00e1c API v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng L7 l\u00e0 \u0111\u1ee7 \u0111\u1ec3 m\u1ed9t \u1ee9ng d\u1ee5ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>3. T\u1ea1i sao l\u1ea1i kh\u00f3 \u0111\u1ec3 ng\u0103n c\u1ea3n m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng L7<\/strong><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Vi\u1ec7c ph\u00e2n bi\u1ec7t traffic s\u1ea1ch, traffic t\u1ea5n c\u00f4ng r\u1ea5t kh\u00f3 kh\u0103n. \u0110\u1eb7c bi\u1ec7t nh\u01b0 trong tr\u01b0\u1eddng h\u1ee3p t\u1ea5n c\u00f4ng HTTP Flood. B\u1edfi v\u00ec m\u1ed7i bot trong m\u1ea1ng botnet t\u1ea1o ra c\u00e1c y\u00eau c\u1ea7u m\u1ea1ng g\u1ea7n nh\u01b0 l\u00e0 b\u00ecnh th\u01b0\u1eddng. Traffic truy c\u1eadp v\u00e0o \u1ee9ng d\u1ee5ng ko b\u1ecb gi\u1ea3 m\u1ea1o v\u00e0 c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n b\u00ecnh th\u01b0\u1eddng.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Ch\u1ed1ng t\u1ea5n c\u00f4ng DDOS layer 7 ph\u1ea3i c\u00f3 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng traffic. \u0110\u1eb7c bi\u1ec7t ph\u1ea3i theo c\u00e1c rule v\u00e0 c\u00f3 th\u1ec3 dao \u0111\u1ed9ng th\u01b0\u1eddng xuy\u00ean. C\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 WAF khi c\u1ea5u h\u00ecnh \u0111\u00fang c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng traffic kh\u00f4ng c\u00f3 th\u1eadt truy\u1ec1n \u0111\u1ebfn m\u00e1y ch\u1ee7 g\u1ed1c ch\u1ee9a \u1ee9ng d\u1ee5ng web.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>4. C\u00e1c ph\u01b0\u01a1ng \u00e1n gi\u1ea3m thi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng L7<\/strong><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u0110\u1ec3 gi\u1ea3m thi\u1ec3u <a style=\"color: #000000;\" href=\"https:\/\/thuemaychudell.com\/\">t\u1ea5n c\u00f4ng<\/a> b\u1ea1n n\u00ean ki\u1ec3m tra xem thi\u1ebft b\u1ecb truy c\u1eadp v\u00e0o \u1ee9ng d\u1ee5ng c\u00f3 ph\u1ea3i l\u00e0 bot hay kh\u00f4ng. C\u1ee5 th\u1ec3 b\u1eb1ng c\u00e1c ki\u1ec3m tra th\u00f4ng qua m\u00e3 captcha. C\u00e1ch n\u00e0y c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u \u0111\u01b0\u1ee3c k\u1ebb t\u1ea5n c\u00f4ng g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn \u1ee9ng d\u1ee5ng th\u1eadt.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Ph\u01b0\u01a1ng \u00e1n kh\u00e1c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u00e0 s\u1eed d\u1ee5ng web application firewall. B\u1eb1ng c\u00e1ch qu\u1ea3n l\u00fd v\u00e0 v\u00e0 l\u1ecdc traffic \u0111i v\u00e0o \u1ee9ng d\u1ee5ng web. Vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 l\u1ecdc traffic \u0111i v\u00e0o d\u1ef1a tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u IP v\u00e0 c\u00e1c rule. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh s\u1eb5n b\u1edfi ng\u01b0\u1eddi qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng m\u1ea1ng.<\/span><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/vnso.vn\/en\/thue-may-chu-rieng\/\"><img decoding=\"async\" class=\"alignnone size-full wp-image-7367\" src=\"https:\/\/vnso.vn\/wp-content\/uploads\/2019\/10\/thue-may-chu-rieng.jpg\" alt=\"thue may chu rieng\" width=\"1827\" height=\"342\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>1. T\u1ea5n c\u00f4ng DDOS \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng l\u00e0 g\u00ec? T\u1ea5n c\u00f4ng DDOS \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng hay t\u1ea5n c\u00f4ng DDOS Layer 7 (L7) \u0111\u1ec1 c\u1eadp \u0111\u1ebfn nh\u1eefng h\u00e0nh vi nguy hi\u1ec3m. \u0110\u01b0\u1ee3c l\u00e0m \u0111\u1ec3 t\u1ea5n c\u00f4ng m\u1ee5c ti\u00eau l\u00e0 t\u1ea7ng cao nh\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh OSI. N\u01a1i m\u00e0 c\u00e1c y\u00eau c\u1ea7u ph\u1ed5 bi\u1ebfn tr\u00ean [&hellip;]<\/p>","protected":false},"author":1,"featured_media":11369,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[156],"tags":[172,122],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.3 (Yoast SEO v22.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>T\u1ea5n C\u00f4ng DDoS \u1ede T\u1ea7ng \u1ee8ng D\u1ee5ng<\/title>\n<meta name=\"description\" content=\"T\u1ea5n c\u00f4ng DDOS \u1edf t\u1ea7ng \u1ee9ng d\u1ee5ng hay t\u1ea5n c\u00f4ng DDOS Layer 7 (L7) \u0111\u1ec1 c\u1eadp \u0111\u1ebfn nh\u1eefng h\u00e0nh vi nguy hi\u1ec3m \u0111\u01b0\u1ee3c l\u00e0m \u0111\u1ec3 t\u1ea5n c\u00f4ng m\u1ee5c ti\u00eau\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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