{"id":17639,"date":"2025-10-23T10:06:29","date_gmt":"2025-10-23T03:06:29","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=17639"},"modified":"2025-10-23T18:00:27","modified_gmt":"2025-10-23T11:00:27","slug":"ddos-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/ddos-la-gi\/","title":{"rendered":"DDoS l\u00e0 g\u00ec? C\u00e1c lo\u1ea1i h\u00ecnh, R\u1ee7i ro, c\u00e1ch nh\u1eadn bi\u1ebft &#038; ph\u00f2ng ch\u1ed1ng"},"content":{"rendered":"<p>Ng\u00e0y nay, m\u1ecdi doanh nghi\u1ec7p \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o <a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">website<\/a>, h\u1ec7 th\u1ed1ng <a href=\"https:\/\/interdata.vn\/blog\/may-chu-server-la-gi\/\">m\u00e1y ch\u1ee7<\/a> v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 v\u1eadn h\u00e0nh v\u00e0 ph\u1ee5c v\u1ee5 kh\u00e1ch h\u00e0ng. Tuy nhi\u00ean, ch\u1ec9 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng b\u1ecb t\u00ea li\u1ec7t, gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng v\u00e0 g\u00e2y thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng v\u1ec1 doanh thu l\u1eabn uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u. C\u00f9ng InterData t\u00ecm hi\u1ec3u t\u1ed5ng quan <strong>DDoS l\u00e0 g\u00ec<\/strong>, nh\u1eefng nguy\u00ean nh\u00e2n, h\u1eadu qu\u1ea3 khi b\u1ecb DDoS. T\u00ecm hi\u1ec3u c\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng v\u00e0 l\u00e0m sao \u0111\u1ec3 nh\u1eadn bi\u1ebft \u2013 ph\u00f2ng ch\u1ed1ng t\u1ea5n c\u00f4ng DDoS hi\u1ec7u qu\u1ea3 cho doanh nghi\u1ec7p?<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#DDoS-la-gi\" >DDoS l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cac-hinh-thuc-tan-cong-DDoS-pho-bien-hien-nay\" >C\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng DDoS ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Tan-cong-Volumetric\" >T\u1ea5n c\u00f4ng Volumetric<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Tan-cong-Protocol\" >T\u1ea5n c\u00f4ng Protocol<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Tan-cong-Application-Layer\" >T\u1ea5n c\u00f4ng Application-Layer<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cach-thuc-hoat-dong-cua-DDoS\" >C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DDoS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Phan-biet-tan-cong-DDoS-va-DoS-Giong-va-Khac-nhau\" >Ph\u00e2n bi\u1ec7t t\u1ea5n c\u00f4ng DDoS v\u00e0 DoS: Gi\u1ed1ng v\u00e0 Kh\u00e1c nhau<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Giong-nhau\" >Gi\u1ed1ng nhau<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Khac-nhau\" >Kh\u00e1c nhau<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Ai-dung-sau-cac-cuoc-tan-cong-DDoS-va-muc-dich-cua-ho-la-gi\" >Ai \u0111\u1ee9ng sau c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS v\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a h\u1ecd l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Canh-tranh-khong-lanh-manh\" >C\u1ea1nh tranh kh\u00f4ng l\u00e0nh m\u1ea1nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Tong-tien-Ransom-DDoS\" >T\u1ed1ng ti\u1ec1n (Ransom DDoS)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#The-hien-nang-luc-hoac-giai-tri\" >Th\u1ec3 hi\u1ec7n n\u0103ng l\u1ef1c ho\u1eb7c gi\u1ea3i tr\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Hoat-dong-chinh-tri-Hacktivism\" >Ho\u1ea1t \u0111\u1ed9ng ch\u00ednh tr\u1ecb (Hacktivism)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Tao-man-khoi-cho-cac-cuoc-tan-cong-khac\" >T\u1ea1o m\u00e0n kh\u00f3i cho c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng kh\u00e1c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Hau-qua-va-tac-dong-cua-tan-cong-DDoS\" >H\u1eadu qu\u1ea3 v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a t\u1ea5n c\u00f4ng DDoS<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#1-Thiet-hai-truc-tiep-ve-tai-chinh\" >1. Thi\u1ec7t h\u1ea1i tr\u1ef1c ti\u1ebfp v\u1ec1 t\u00e0i ch\u00ednh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#2-Mat-uy-tin-thuong-hieu\" >2. M\u1ea5t uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#3-Chi-phi-khac-phuc-khong-lo\" >3. Chi ph\u00ed kh\u1eafc ph\u1ee5c kh\u1ed5ng l\u1ed3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#4-Anh-huong-tieu-cuc-den-SEO\" >4. \u1ea2nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn SEO<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Nguyen-nhan-khien-website-de-bi-tan-cong-DDoS\" >Nguy\u00ean nh\u00e2n khi\u1ebfn website d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng DDoS<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Ha-tang-may-chu-yeu-khong-co-can-bang-tai-Load-Balancing\" >H\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 y\u1ebfu, kh\u00f4ng c\u00f3 c\u00e2n b\u1eb1ng t\u1ea3i (Load Balancing)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Thieu-cac-lop-bao-ve-nhu-Tuong-lua-Firewall-hoac-CDN\" >Thi\u1ebfu c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 nh\u01b0 T\u01b0\u1eddng l\u1eeda (Firewall) ho\u1eb7c CDN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cau-hinh-bao-mat-may-chu-chua-duoc-toi-uu\" >C\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt m\u00e1y ch\u1ee7 ch\u01b0a \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Khong-co-he-thong-giam-sat-luu-luong-truy-cap-Traffic-Monitoring\" >Kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp (Traffic Monitoring)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cac-dau-hieu-nhan-biet-bi-DDoS\" >C\u00e1c d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft b\u1ecb DDoS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Huong-dan-cach-phong-chong-tan-cong-DDoS-hieu-qua\" >H\u01b0\u1edbng d\u1eabn c\u00e1ch ph\u00f2ng ch\u1ed1ng t\u1ea5n c\u00f4ng DDoS hi\u1ec7u qu\u1ea3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Su-dung-Tuong-lua-Firewall-Gioi-han-toc-do-Rate-Limiting\" >S\u1eed d\u1ee5ng T\u01b0\u1eddng l\u1eeda (Firewall) &amp; Gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 (Rate Limiting)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Trien-khai-Mang-luoi-phan-phoi-noi-dung-CDN-WAF\" >Tri\u1ec3n khai M\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) &amp; WAF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cau-hinh-phia-May-chu-Mang-Server-Network\" >C\u1ea5u h\u00ecnh ph\u00eda M\u00e1y ch\u1ee7 &amp; M\u1ea1ng (Server &amp; Network)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Chuan-bi-Bang-thong-du-phong\" >Chu\u1ea9n b\u1ecb B\u0103ng th\u00f4ng d\u1ef1 ph\u00f2ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Gioi-han-so-luong-yeu-cau-cua-may-chu\" >Gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u c\u1ee7a m\u00e1y ch\u1ee7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Su-dung-Dich-vu-chong-DDoS-chuyen-dung\" >S\u1eed d\u1ee5ng D\u1ecbch v\u1ee5 ch\u1ed1ng DDoS chuy\u00ean d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cac-bien-phap-noi-bo-cho-doanh-nghiep\" >C\u00e1c bi\u1ec7n ph\u00e1p n\u1ed9i b\u1ed9 cho doanh nghi\u1ec7p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Dinh-tuyen-lo-den\" >\u0110\u1ecbnh tuy\u1ebfn l\u1ed7 \u0111en<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Mot-so-giai-phap-phong-chong-DDoS-cho-doanh-nghiep\" >M\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p ph\u00f2ng ch\u1ed1ng DDoS cho doanh nghi\u1ec7p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/#Cau-hoi-thuong-gap-ve-tan-cong-DDoS-FAQ\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 t\u1ea5n c\u00f4ng DDoS (FAQ)<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"DDoS-la-gi\"><\/span>DDoS l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>T\u1ea5n c\u00f4ng DDoS<\/strong> l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb Ti\u1ebfng Anh <em>Distributed Denial of Service<\/em>, c\u00f3 ngh\u0129a l\u00e0 <strong>T\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 ph\u00e2n t\u00e1n<\/strong>, m\u1ee5c\u00a0\u0111\u00edch nh\u1eb1m l\u00e0m cho m\u1ed9t d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn (th\u01b0\u1eddng l\u00e0 m\u1ed9t <a href=\"https:\/\/interdata.vn\/blog\/page-la-gi\/\">trang web<\/a> ho\u1eb7c m\u00e1y ch\u1ee7) tr\u1edf n\u00ean kh\u00f4ng kh\u1ea3 d\u1ee5ng \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng h\u1ee3p l\u1ec7.<\/p>\n<p>\u0110\u1ec3 d\u1ec5 h\u00ecnh dung, h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng website c\u1ee7a b\u1ea1n l\u00e0 m\u1ed9t c\u1eeda h\u00e0ng l\u1edbn c\u00f3 m\u1ed9t c\u1eeda ra v\u00e0o. B\u00ecnh th\u01b0\u1eddng, kh\u00e1ch h\u00e0ng (ng\u01b0\u1eddi d\u00f9ng h\u1ee3p l\u1ec7) ra v\u00e0o r\u1ea5t thu\u1eadn ti\u1ec7n. M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS gi\u1ed1ng nh\u01b0 k\u1ebb x\u1ea5u c\u1eed m\u1ed9t \u0111\u1ed9i qu\u00e2n h\u00e0ng ngh\u00ecn, th\u1eadm ch\u00ed h\u00e0ng tri\u1ec7u ng\u01b0\u1eddi gi\u1ea3 l\u00e0m kh\u00e1ch h\u00e0ng, \u0111\u1ed3ng lo\u1ea1t k\u00e9o \u0111\u1ebfn v\u00e0 c\u1ed1 t\u00ecnh g\u00e2y t\u1eafc ngh\u1ebdn ngay t\u1ea1i c\u1eeda ra v\u00e0o. H\u1ecd kh\u00f4ng mua h\u00e0ng, ch\u1ec9 \u0111\u1ee9ng \u0111\u00f3 v\u00e0 ch\u1eb7n \u0111\u01b0\u1eddng. K\u1ebft qu\u1ea3 l\u00e0 kh\u00e1ch h\u00e0ng th\u1eadt s\u1ef1 kh\u00f4ng th\u1ec3 n\u00e0o v\u00e0o \u0111\u01b0\u1ee3c c\u1eeda h\u00e0ng.<\/p>\n<figure id=\"attachment_17643\" aria-describedby=\"caption-attachment-17643\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-17643\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/ddos-la-gi.webp\" alt=\"DDoS l\u00e0 g\u00ec?\" width=\"800\" height=\"533\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/ddos-la-gi.webp 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/ddos-la-gi-300x200.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/ddos-la-gi-768x512.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/ddos-la-gi-750x500.webp 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-17643\" class=\"wp-caption-text\">DDoS l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>Trong th\u1ebf gi\u1edbi s\u1ed1, &#8220;\u0111\u1ed9i qu\u00e2n&#8221; n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/botnet-la-gi\/\">botnet<\/a> \u2013 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi c\u00e1c m\u00e1y t\u00ednh, thi\u1ebft b\u1ecb <a href=\"https:\/\/interdata.vn\/blog\/internet-of-things\/\">IoT<\/a> (camera, router&#8230;) \u0111\u00e3 b\u1ecb tin t\u1eb7c (hacker) chi\u1ebfm quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa. K\u1ebb t\u1ea5n c\u00f4ng s\u1ebd ra l\u1ec7nh cho to\u00e0n b\u1ed9 botnet n\u00e0y \u0111\u1ed3ng lo\u1ea1t g\u1eedi m\u1ed9t l\u01b0\u1ee3ng y\u00eau c\u1ea7u truy c\u1eadp kh\u1ed5ng l\u1ed3 \u0111\u1ebfn m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau.<\/p>\n<p>M\u00e1y ch\u1ee7, v\u1edbi t\u00e0i nguy\u00ean (<a href=\"https:\/\/interdata.vn\/blog\/bang-thong-la-gi\/\">b\u0103ng th\u00f4ng<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/cpu-server\/\">CPU<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/ram-server\/\">RAM<\/a>) c\u00f3 h\u1ea1n, s\u1ebd nhanh ch\u00f3ng b\u1ecb qu\u00e1 t\u1ea3i v\u00e0 kh\u00f4ng th\u1ec3 x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng th\u00f4ng th\u01b0\u1eddng, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng &#8220;t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5&#8221;. Vi\u1ec7c hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a t\u1ea5n c\u00f4ng DDoS l\u00e0 g\u00ec l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean v\u00e0 quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi ch\u00fang.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-hinh-thuc-tan-cong-DDoS-pho-bien-hien-nay\"><\/span>C\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng DDoS ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS c\u00f3 nhi\u1ec1u h\u00ecnh th\u1ee9c kh\u00e1c nhau, nh\u01b0ng v\u1ec1 c\u01a1 b\u1ea3n ch\u00fang \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh ba lo\u1ea1i ch\u00ednh d\u1ef1a tr\u00ean m\u1ee5c ti\u00eau t\u1ea5n c\u00f4ng: t\u1ea5n c\u00f4ng b\u0103ng th\u00f4ng, t\u1ea5n c\u00f4ng giao th\u1ee9c v\u00e0 t\u1ea5n c\u00f4ng <a href=\"https:\/\/interdata.vn\/blog\/application-layer-la-gi\/\">t\u1ea7ng \u1ee9ng d\u1ee5ng<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-Volumetric\"><\/span>T\u1ea5n c\u00f4ng Volumetric<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lo\u1ea1i t\u1ea5n c\u00f4ng n\u00e0y nh\u1eb1m m\u1ee5c \u0111\u00edch ki\u1ec3m so\u00e1t t\u1ea5t c\u1ea3 b\u0103ng th\u00f4ng kh\u1ea3 d\u1ee5ng gi\u1eefa n\u1ea1n nh\u00e2n v\u00e0 internet l\u1edbn h\u01a1n. Khu\u1ebfch \u0111\u1ea1i h\u1ec7 th\u1ed1ng <a href=\"https:\/\/interdata.vn\/blog\/domain-la-gi\/\">t\u00ean mi\u1ec1n<\/a> (<a href=\"https:\/\/interdata.vn\/blog\/dns-la-gi\/\">DNS<\/a>) l\u00e0 m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 t\u1ea5n c\u00f4ng d\u1ef1a tr\u00ean kh\u1ed1i l\u01b0\u1ee3ng. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, k\u1ebb t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u1ee5c ti\u00eau, sau \u0111\u00f3 g\u1eedi y\u00eau c\u1ea7u tra c\u1ee9u t\u00ean DNS \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS m\u1edf v\u1edbi \u0111\u1ecba ch\u1ec9 gi\u1ea3 m\u1ea1o.<\/p>\n<p>Khi m\u00e1y ch\u1ee7 DNS g\u1eedi ph\u1ea3n h\u1ed3i b\u1ea3n ghi DNS, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn m\u1ee5c ti\u00eau, d\u1eabn \u0111\u1ebfn vi\u1ec7c m\u1ee5c ti\u00eau nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 khu\u1ebfch \u0111\u1ea1i c\u1ee7a <a href=\"https:\/\/interdata.vn\/blog\/query-la-gi\/\">truy v\u1ea5n<\/a> ban \u0111\u1ea7u nh\u1ecf c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng.<\/p>\n<figure id=\"attachment_17648\" aria-describedby=\"caption-attachment-17648\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-17648\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-volumetric.webp\" alt=\"T\u1ea5n c\u00f4ng Volumetric\" width=\"800\" height=\"501\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-volumetric.webp 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-volumetric-300x188.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-volumetric-768x481.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-volumetric-750x470.webp 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-17648\" class=\"wp-caption-text\">T\u1ea5n c\u00f4ng Volumetric<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-Protocol\"><\/span>T\u1ea5n c\u00f4ng Protocol<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Protocol (giao th\u1ee9c) s\u1eed d\u1ee5ng h\u1ebft t\u1ea5t c\u1ea3 dung l\u01b0\u1ee3ng kh\u1ea3 d\u1ee5ng c\u1ee7a <a href=\"https:\/\/interdata.vn\/blog\/web-server\/\">m\u00e1y ch\u1ee7 web<\/a> ho\u1eb7c c\u00e1c t\u00e0i nguy\u00ean kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/tuong-lua-firewall\/\">t\u01b0\u1eddng l\u1eeda<\/a>. Ch\u00fang ph\u01a1i b\u00e0y nh\u1eefng \u0111i\u1ec3m y\u1ebfu trong L\u1edbp 3 v\u00e0 4 c\u1ee7a <a href=\"https:\/\/interdata.vn\/blog\/stack-la-gi\/\">ng\u0103n x\u1ebfp<\/a> giao th\u1ee9c OSI \u0111\u1ec3 khi\u1ebfn m\u1ee5c ti\u00eau kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c.<\/p>\n<p>SYN flood l\u00e0 m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 t\u1ea5n c\u00f4ng giao th\u1ee9c, trong \u0111\u00f3 k\u1ebb t\u1ea5n c\u00f4ng g\u1eedi cho m\u1ee5c ti\u00eau m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn y\u00eau c\u1ea7u b\u1eaft tay giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn (TCP) v\u1edbi c\u00e1c \u0111\u1ecba ch\u1ec9 Giao th\u1ee9c Internet (IP) ngu\u1ed3n gi\u1ea3 m\u1ea1o. C\u00e1c m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau c\u1ed1 g\u1eafng ph\u1ea3n h\u1ed3i t\u1eebng y\u00eau c\u1ea7u k\u1ebft n\u1ed1i, nh\u01b0ng qu\u00e1 tr\u00ecnh b\u1eaft tay cu\u1ed1i c\u00f9ng kh\u00f4ng bao gi\u1edd x\u1ea3y ra, khi\u1ebfn m\u1ee5c ti\u00eau b\u1ecb qu\u00e1 t\u1ea3i trong qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n<figure id=\"attachment_17647\" aria-describedby=\"caption-attachment-17647\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-17647\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-protocol.webp\" alt=\"T\u1ea5n c\u00f4ng Protocol\" width=\"800\" height=\"600\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-protocol.webp 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-protocol-300x225.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-protocol-768x576.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-protocol-750x563.webp 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-17647\" class=\"wp-caption-text\">T\u1ea5n c\u00f4ng Protocol<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-Application-Layer\"><\/span>T\u1ea5n c\u00f4ng Application-Layer<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Application-Layer c\u0169ng nh\u1eb1m m\u1ee5c \u0111\u00edch l\u00e0m c\u1ea1n ki\u1ec7t ho\u1eb7c \u00e1p \u0111\u1ea3o c\u00e1c t\u00e0i nguy\u00ean c\u1ee7a m\u1ee5c ti\u00eau nh\u01b0ng kh\u00f3 b\u1ecb g\u1eafn c\u1edd l\u00e0 \u0111\u1ed9c h\u1ea1i. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ea5n c\u00f4ng DDoS L\u1edbp 7 \u2014 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn L\u1edbp 7 c\u1ee7a <a href=\"https:\/\/interdata.vn\/blog\/mo-hinh-osi-la-gi\/\">m\u00f4 h\u00ecnh OSI<\/a> \u2014 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1ea7ng \u1ee9ng d\u1ee5ng nh\u1eafm m\u1ee5c ti\u00eau \u0111\u1ebfn l\u1edbp n\u01a1i c\u00e1c trang web \u0111\u01b0\u1ee3c t\u1ea1o \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u Giao th\u1ee9c Truy\u1ec1n si\u00eau v\u0103n b\u1ea3n (HTTP).<\/p>\n<p>M\u00e1y ch\u1ee7 ch\u1ea1y c\u00e1c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 t\u1ea1o m\u1ed9t trang web. Trong h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng n\u00e0y, k\u1ebb t\u1ea5n c\u00f4ng bu\u1ed9c m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n ph\u1ea3i x\u1eed l\u00fd nhi\u1ec1u h\u01a1n b\u00ecnh th\u01b0\u1eddng. HTTP flood l\u00e0 m\u1ed9t lo\u1ea1i t\u1ea5n c\u00f4ng t\u1ea7ng \u1ee9ng d\u1ee5ng v\u00e0 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 vi\u1ec7c li\u00ean t\u1ee5c l\u00e0m m\u1edbi tr\u00ecnh duy\u1ec7t web tr\u00ean c\u00e1c m\u00e1y t\u00ednh kh\u00e1c nhau c\u00f9ng m\u1ed9t l\u00fac. Theo c\u00e1ch n\u00e0y, s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u HTTP qu\u00e1 m\u1ee9c s\u1ebd \u00e1p \u0111\u1ea3o m\u00e1y ch\u1ee7, d\u1eabn \u0111\u1ebfn DDoS.<\/p>\n<figure id=\"attachment_17645\" aria-describedby=\"caption-attachment-17645\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-17645\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-application-layer.webp\" alt=\"T\u1ea5n c\u00f4ng Application-Layer\" width=\"800\" height=\"600\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-application-layer.webp 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-application-layer-300x225.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-application-layer-768x576.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/tan-cong-application-layer-750x563.webp 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-17645\" class=\"wp-caption-text\">T\u1ea5n c\u00f4ng Application-Layer<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Cach-thuc-hoat-dong-cua-DDoS\"><\/span>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DDoS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua m\u1ea1ng l\u01b0\u1edbi c\u00e1c m\u00e1y t\u00ednh k\u1ebft n\u1ed1i Internet.<\/p>\n<p>Nh\u1eefng m\u1ea1ng l\u01b0\u1edbi n\u00e0y bao g\u1ed3m m\u00e1y t\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c (ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u1ebft b\u1ecb IoT) \u0111\u00e3 b\u1ecb nhi\u1ec5m ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, cho ph\u00e9p k\u1ebb t\u1ea5n c\u00f4ng \u0111i\u1ec1u khi\u1ec3n ch\u00fang t\u1eeb xa. C\u00e1c thi\u1ebft b\u1ecb ri\u00eang l\u1ebb n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bot (ho\u1eb7c zombie) v\u00e0 m\u1ed9t nh\u00f3m bot \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 botnet.<\/p>\n<p>Sau khi botnet \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u1ea1o m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng b\u1eb1ng c\u00e1ch g\u1eedi h\u01b0\u1edbng d\u1eabn t\u1eeb xa \u0111\u1ebfn t\u1eebng bot.<\/p>\n<p>Khi m\u00e1y ch\u1ee7 ho\u1eb7c m\u1ea1ng c\u1ee7a n\u1ea1n nh\u00e2n b\u1ecb botnet nh\u1eafm m\u1ee5c ti\u00eau, m\u1ed7i bot s\u1ebd g\u1eedi y\u00eau c\u1ea7u \u0111\u1ebfn <a href=\"https:\/\/interdata.vn\/blog\/dia-chi-ip-la-gi\/\">\u0111\u1ecba ch\u1ec9 IP<\/a> c\u1ee7a m\u1ee5c ti\u00eau, c\u00f3 kh\u1ea3 n\u0103ng khi\u1ebfn m\u00e1y ch\u1ee7 ho\u1eb7c m\u1ea1ng b\u1ecb qu\u00e1 t\u1ea3i, d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 \u0111\u1ed1i v\u1edbi l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u00f4ng th\u01b0\u1eddng.<\/p>\n<p>Do m\u1ed7i bot l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb Internet h\u1ee3p ph\u00e1p n\u00ean vi\u1ec7c t\u00e1ch l\u01b0u l\u01b0\u1ee3ng t\u1ea5n c\u00f4ng kh\u1ecfi l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n.<\/p>\n<figure id=\"attachment_17642\" aria-describedby=\"caption-attachment-17642\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-17642\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/cach-thuc-hoat-dong-cua-ddos.webp\" alt=\"C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DDoS\" width=\"800\" height=\"320\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/cach-thuc-hoat-dong-cua-ddos.webp 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/cach-thuc-hoat-dong-cua-ddos-300x120.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/cach-thuc-hoat-dong-cua-ddos-768x307.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/08\/cach-thuc-hoat-dong-cua-ddos-750x300.webp 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-17642\" class=\"wp-caption-text\">C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DDoS<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Phan-biet-tan-cong-DDoS-va-DoS-Giong-va-Khac-nhau\"><\/span>Ph\u00e2n bi\u1ec7t t\u1ea5n c\u00f4ng DDoS v\u00e0 DoS: Gi\u1ed1ng v\u00e0 Kh\u00e1c nhau<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng nh\u1ea7m l\u1eabn gi\u1eefa <a href=\"https:\/\/interdata.vn\/blog\/dos-attack-la-gi\/\">DoS<\/a> v\u00e0 DDoS. M\u1eb7c d\u00f9 c\u00f9ng c\u00f3 m\u1ee5c ti\u00eau l\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5, nh\u01b0ng ph\u01b0\u01a1ng th\u1ee9c th\u1ef1c hi\u1ec7n c\u1ee7a ch\u00fang ho\u00e0n to\u00e0n kh\u00e1c nhau. Vi\u1ec7c ph\u00e2n bi\u1ec7t r\u00f5 hai kh\u00e1i ni\u1ec7m n\u00e0y gi\u00fap b\u1ea1n hi\u1ec3u \u0111\u00fang quy m\u00f4 v\u00e0 m\u1ee9c \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u1ed1i \u0111e d\u1ecda.<\/p>\n<figure id=\"attachment_35010\" aria-describedby=\"caption-attachment-35010\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-35010\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Phan-biet-DDoS-va-DoS.jpg\" alt=\"Ph\u00e2n bi\u1ec7t DDoS v\u00e0 DoS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Phan-biet-DDoS-va-DoS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Phan-biet-DDoS-va-DoS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Phan-biet-DDoS-va-DoS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-35010\" class=\"wp-caption-text\">Ph\u00e2n bi\u1ec7t DDoS v\u00e0 DoS<\/figcaption><\/figure>\n<p>T\u1ea5n c\u00f4ng DoS (Denial of Service) v\u00e0 DDoS (Distributed Denial of Service) \u0111\u1ec1u l\u00e0 c\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 nh\u1eb1m l\u00e0m cho h\u1ec7 th\u1ed1ng, m\u00e1y ch\u1ee7 ho\u1eb7c m\u1ea1ng kh\u00f4ng th\u1ec3 ph\u1ee5c v\u1ee5 \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00f9ng h\u1ee3p ph\u00e1p, nh\u01b0ng c\u00f3 nh\u1eefng \u0111i\u1ec3m gi\u1ed1ng v\u00e0 kh\u00e1c nhau sau \u0111\u00e2y:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Giong-nhau\"><\/span>Gi\u1ed1ng nhau<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u0110\u1ec1u nh\u1eb1m m\u1ee5c \u0111\u00edch l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1eb7c l\u00e0m s\u1eadp d\u1ecbch v\u1ee5 c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng h\u1ee3p ph\u00e1p kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c.<\/li>\n<li>C\u1ea3 hai lo\u1ea1i t\u1ea5n c\u00f4ng \u0111\u1ec1u d\u1ef1a v\u00e0o vi\u1ec7c l\u00e0m qu\u00e1 t\u1ea3i t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng (CPU, b\u1ed9 nh\u1edb, b\u0103ng th\u00f4ng) th\u00f4ng qua l\u01b0\u1ee3ng l\u1edbn y\u00eau c\u1ea7u gi\u1ea3 m\u1ea1o.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Khac-nhau\"><\/span>Kh\u00e1c nhau<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ea3ng so s\u00e1nh d\u01b0\u1edbi \u0111\u00e2y s\u1ebd l\u00e0m r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i gi\u1eefa DDoS v\u00e0 DoS:<\/p>\n<table style=\"width: 100%; max-width: 100%; border-collapse: collapse; font-family: Arial, Helvetica, sans-serif; font-size: 14px;\">\n<thead>\n<tr>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 16px; border: 1px solid #dfe9ff; text-align: center;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 16px; border: 1px solid #dfe9ff; text-align: center;\">T\u1ea5n c\u00f4ng DoS (Denial of Service)<\/th>\n<th style=\"background: #0d6efd; color: #ffffff; padding: 12px 16px; border: 1px solid #dfe9ff; text-align: center;\">T\u1ea5n c\u00f4ng DDoS (Distributed Denial of Service)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #ffffff;\"><span style=\"color: #000000;\">Ngu\u1ed3n t\u1ea5n c\u00f4ng<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">Ch\u1ec9 t\u1eeb m\u1ed9t m\u00e1y t\u00ednh ho\u1eb7c m\u1ed9t k\u1ebft n\u1ed1i m\u1ea1ng duy nh\u1ea5t.<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">T\u1eeb h\u00e0ng ngh\u00ecn \u0111\u1ebfn h\u00e0ng tri\u1ec7u m\u00e1y t\u00ednh, thi\u1ebft b\u1ecb kh\u00e1c nhau tr\u00ean to\u00e0n c\u1ea7u (Botnet).<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #ffffff;\"><span style=\"color: #000000;\">Quy m\u00f4<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">Nh\u1ecf, l\u01b0u l\u01b0\u1ee3ng t\u1ea5n c\u00f4ng th\u1ea5p h\u01a1n.<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">C\u1ef1c l\u1edbn, l\u01b0u l\u01b0\u1ee3ng t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 \u0111\u1ea1t h\u00e0ng Terabit m\u1ed7i gi\u00e2y (Tbps).<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #ffffff;\"><span style=\"color: #000000;\">T\u00e1c \u0111\u1ed9ng<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">G\u00e2y t\u00ea li\u1ec7t m\u00e1y ch\u1ee7 ho\u1eb7c m\u1ea1ng nh\u1ecf<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">G\u00e2y t\u00ea li\u1ec7t h\u1ec7 th\u1ed1ng l\u1edbn ho\u1eb7c to\u00e0n b\u1ed9 m\u1ea1ng, \u1ea3nh h\u01b0\u1edfng r\u1ed9ng h\u01a1n<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #ffffff;\"><span style=\"color: #000000;\">Kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">D\u1ec5 d\u00e0ng h\u01a1n. Ch\u1ec9 c\u1ea7n x\u00e1c \u0111\u1ecbnh v\u00e0 ch\u1eb7n \u0111\u1ecba ch\u1ec9 IP duy nh\u1ea5t \u0111ang t\u1ea5n c\u00f4ng.<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">R\u1ea5t kh\u00f3 kh\u0103n. V\u00ec c\u00f3 qu\u00e1 nhi\u1ec1u ngu\u1ed3n t\u1ea5n c\u00f4ng, vi\u1ec7c ch\u1eb7n t\u1eebng IP l\u00e0 b\u1ea5t kh\u1ea3 thi v\u00e0 d\u1ec5 ch\u1eb7n nh\u1ea7m ng\u01b0\u1eddi d\u00f9ng th\u1eadt.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #ffffff;\"><span style=\"color: #000000;\">Hi\u1ec7u qu\u1ea3<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">Th\u1ea5p h\u01a1n, d\u1ec5 b\u1ecb ng\u0103n ch\u1eb7n b\u1edfi c\u00e1c h\u1ec7 th\u1ed1ng ph\u00f2ng th\u1ee7 c\u01a1 b\u1ea3n.<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">Cao h\u01a1n, c\u00f3 kh\u1ea3 n\u0103ng \u0111\u00e1nh s\u1eadp c\u1ea3 nh\u1eefng h\u1ec7 th\u1ed1ng l\u1edbn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 k\u1ef9 l\u01b0\u1ee1ng.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #ffffff;\"><span style=\"color: #000000;\">Lo\u1ea1i t\u1ea5n c\u00f4ng th\u01b0\u1eddng g\u1eb7p<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">T\u1ea5n c\u00f4ng tr\u00e0n <a href=\"https:\/\/interdata.vn\/blog\/bo-nho-dem-la-gi\/\">b\u1ed9 nh\u1edb \u0111\u1ec7m<\/a>, Ping of Death, ICMP Flood<\/span><\/td>\n<td style=\"padding: 12px 16px; border: 1px solid #e6f0ff; vertical-align: top; background: #fbfdff;\"><span style=\"color: #000000;\">T\u1ea5n c\u00f4ng b\u0103ng th\u00f4ng (Volumetric), khai th\u00e1c l\u1ed7 h\u1ed5ng \u1ee9ng d\u1ee5ng, t\u1ea5n c\u00f4ng ph\u00e2n m\u1ea3nh d\u1eef li\u1ec7u<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>K\u1ebft lu\u1eadn:<\/strong> T\u1ea5n c\u00f4ng DoS l\u00e0 m\u1ed9t phi\u00ean b\u1ea3n \u0111\u01a1n gi\u1ea3n h\u01a1n, t\u1eadp trung t\u1eeb m\u1ed9t ngu\u1ed3n duy nh\u1ea5t, trong khi DDoS l\u00e0 d\u1ea1ng n\u00e2ng cao h\u01a1n, s\u1eed d\u1ee5ng nhi\u1ec1u thi\u1ebft b\u1ecb ph\u00e2n t\u00e1n \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng quy m\u00f4 v\u00e0 \u0111\u1ed9 kh\u00f3 trong vi\u1ec7c ph\u00f2ng th\u1ee7.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ai-dung-sau-cac-cuoc-tan-cong-DDoS-va-muc-dich-cua-ho-la-gi\"><\/span><strong>Ai \u0111\u1ee9ng sau c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS v\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a h\u1ecd l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Kh\u00f4ng c\u00f3 m\u1ed9t nguy\u00ean nh\u00e2n duy nh\u1ea5t cho t\u1ea5t c\u1ea3 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS. \u0110\u1ed9ng c\u01a1 \u0111\u1eb1ng sau ch\u00fang r\u1ea5t \u0111a d\u1ea1ng, t\u1eeb nh\u1eefng l\u00fd do t\u00e0i ch\u00ednh \u0111\u1ebfn c\u00e1c m\u1ee5c ti\u00eau ch\u00ednh tr\u1ecb. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c m\u1ee5c \u0111\u00edch n\u00e0y gi\u00fap doanh nghi\u1ec7p nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c r\u1ee7i ro ti\u1ec1m t\u00e0ng \u0111\u1ed1i v\u1edbi ng\u00e0nh ngh\u1ec1 c\u1ee7a m\u00ecnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Canh-tranh-khong-lanh-manh\"><\/span><strong>C\u1ea1nh tranh kh\u00f4ng l\u00e0nh m\u1ea1nh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u1ea1nh tranh kh\u00f4ng l\u00e0nh m\u1ea1nh l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do ph\u1ed5 bi\u1ebfn nh\u1ea5t. C\u00e1c \u0111\u1ed1i th\u1ee7 kinh doanh c\u00f3 th\u1ec3 thu\u00ea hacker \u0111\u1ec3 t\u1ea5n c\u00f4ng website c\u1ee7a b\u1ea1n v\u00e0o nh\u1eefng th\u1eddi \u0111i\u1ec3m quan tr\u1ecdng nh\u01b0 c\u00e1c \u0111\u1ee3t khuy\u1ebfn m\u00e3i l\u1edbn, ng\u00e0y ra m\u1eaft s\u1ea3n ph\u1ea9m m\u1edbi nh\u1eb1m l\u00e0m gi\u1ea3m doanh thu v\u00e0 uy t\u00edn c\u1ee7a b\u1ea1n.<\/p>\n<figure id=\"attachment_35006\" aria-describedby=\"caption-attachment-35006\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-35006\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Muc-dich-cua-DDos.jpg\" alt=\"M\u1ee5c \u0111\u00edch c\u1ee7a DDos\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Muc-dich-cua-DDos.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Muc-dich-cua-DDos-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Muc-dich-cua-DDos-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-35006\" class=\"wp-caption-text\">M\u1ee5c \u0111\u00edch c\u1ee7a DDos<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tong-tien-Ransom-DDoS\"><\/span><strong>T\u1ed1ng ti\u1ec1n (Ransom DDoS)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>K\u1ebb t\u1ea5n c\u00f4ng s\u1ebd th\u1ef1c hi\u1ec7n m\u1ed9t cu\u1ed9c DDoS quy m\u00f4 nh\u1ecf, sau \u0111\u00f3 g\u1eedi email \u0111e d\u1ecda s\u1ebd ti\u1ebfn h\u00e0nh m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbn h\u01a1n nhi\u1ec1u n\u1ebfu n\u1ea1n nh\u00e2n kh\u00f4ng tr\u1ea3 m\u1ed9t kho\u1ea3n ti\u1ec1n chu\u1ed9c (th\u01b0\u1eddng b\u1eb1ng ti\u1ec1n \u0111i\u1ec7n t\u1eed).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"The-hien-nang-luc-hoac-giai-tri\"><\/span><strong>Th\u1ec3 hi\u1ec7n n\u0103ng l\u1ef1c ho\u1eb7c gi\u1ea3i tr\u00ed<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t s\u1ed1 hacker, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng ng\u01b0\u1eddi tr\u1ebb tu\u1ed5i, th\u1ef1c hi\u1ec7n t\u1ea5n c\u00f4ng DDoS ch\u1ec9 \u0111\u1ec3 ch\u1ee9ng t\u1ecf k\u1ef9 n\u0103ng, t\u1ea1o danh ti\u1ebfng trong c\u1ed9ng \u0111\u1ed3ng hacker ho\u1eb7c \u0111\u01a1n gi\u1ea3n l\u00e0 \u0111\u1ec3 gi\u1ea3i tr\u00ed.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hoat-dong-chinh-tri-Hacktivism\"><\/span><strong>Ho\u1ea1t \u0111\u1ed9ng ch\u00ednh tr\u1ecb (Hacktivism)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c nh\u00f3m hacker s\u1eed d\u1ee5ng DDoS nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u1ec3 b\u00e0y t\u1ecf quan \u0111i\u1ec3m ch\u00ednh tr\u1ecb, ph\u1ea3n \u0111\u1ed1i c\u00e1c ch\u00ednh s\u00e1ch c\u1ee7a ch\u00ednh ph\u1ee7 ho\u1eb7c c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t t\u1ed5 ch\u1ee9c n\u00e0o \u0111\u00f3 b\u1eb1ng c\u00e1ch \u0111\u00e1nh s\u1eadp trang web c\u1ee7a h\u1ecd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tao-man-khoi-cho-cac-cuoc-tan-cong-khac\"><\/span><strong>T\u1ea1o m\u00e0n kh\u00f3i cho c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng kh\u00e1c<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DDoS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m ph\u00e2n t\u00e2m \u0111\u1ed9i ng\u0169 an ninh. Trong khi m\u1ecdi ng\u01b0\u1eddi \u0111ang t\u1eadp trung kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 qu\u00e1 t\u1ea3i, hacker s\u1ebd \u00e2m th\u1ea7m x\u00e2m nh\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u ho\u1eb7c c\u00e0i c\u1eafm ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hau-qua-va-tac-dong-cua-tan-cong-DDoS\"><\/span><strong>H\u1eadu qu\u1ea3 v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a t\u1ea5n c\u00f4ng DDoS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi v\u1eabn l\u1ea7m t\u01b0\u1edfng r\u1eb1ng t\u1ea5n c\u00f4ng DDoS ch\u1ec9 \u0111\u01a1n thu\u1ea7n g\u00e2y gi\u00e1n \u0111o\u1ea1n t\u1ea1m th\u1eddi. Tuy nhi\u00ean, h\u1eadu qu\u1ea3 th\u1ef1c t\u1ebf m\u00e0 n\u00f3 \u0111\u1ec3 l\u1ea1i n\u1eb7ng n\u1ec1 h\u01a1n r\u1ea5t nhi\u1ec1u, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 s\u1ed1ng c\u00f2n c\u1ee7a m\u1ed9t doanh nghi\u1ec7p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Thiet-hai-truc-tiep-ve-tai-chinh\"><\/span><strong>1. Thi\u1ec7t h\u1ea1i tr\u1ef1c ti\u1ebfp v\u1ec1 t\u00e0i ch\u00ednh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Thi\u1ec7t h\u1ea1i t\u00e0i ch\u00ednh l\u00e0 t\u00e1c \u0111\u1ed9ng r\u00f5 r\u00e0ng nh\u1ea5t. M\u1ed7i ph\u00fat website ng\u1eebng ho\u1ea1t \u0111\u1ed9ng l\u00e0 m\u1ed7i ph\u00fat doanh nghi\u1ec7p m\u1ea5t \u0111i doanh thu, \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u00e1c ng\u00e0nh nh\u01b0 th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, d\u1ecbch v\u1ee5 t\u00e0i ch\u00ednh, game online. Theo m\u1ed9t b\u00e1o c\u00e1o c\u1ee7a Gartner, chi ph\u00ed trung b\u00ecnh cho m\u1ed7i ph\u00fat <a href=\"https:\/\/interdata.vn\/blog\/downtime-la-gi\/\">downtime<\/a> c\u00f3 th\u1ec3 l\u00ean t\u1edbi 5,600 USD. Con s\u1ed1 n\u00e0y c\u00f3 th\u1ec3 c\u00f2n cao h\u01a1n t\u00f9y thu\u1ed9c v\u00e0o quy m\u00f4 doanh nghi\u1ec7p.<\/p>\n<figure id=\"attachment_35007\" aria-describedby=\"caption-attachment-35007\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-35007\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Hau-qua-cua-DDos.jpg\" alt=\"H\u1eadu qu\u1ea3 c\u1ee7a DDos\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Hau-qua-cua-DDos.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Hau-qua-cua-DDos-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Hau-qua-cua-DDos-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-35007\" class=\"wp-caption-text\">H\u1eadu qu\u1ea3 c\u1ee7a DDos<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"2-Mat-uy-tin-thuong-hieu\"><\/span><strong>2. M\u1ea5t uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t website kh\u00f4ng \u1ed5n \u0111\u1ecbnh, th\u01b0\u1eddng xuy\u00ean kh\u00f4ng th\u1ec3 truy c\u1eadp s\u1ebd l\u00e0m x\u00f3i m\u00f2n ni\u1ec1m tin c\u1ee7a kh\u00e1ch h\u00e0ng. Kh\u00e1ch h\u00e0ng s\u1ebd c\u1ea3m th\u1ea5y d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n kh\u00f4ng chuy\u00ean nghi\u1ec7p, kh\u00f4ng an to\u00e0n v\u00e0 c\u00f3 xu h\u01b0\u1edbng chuy\u1ec3n sang s\u1eed d\u1ee5ng s\u1ea3n ph\u1ea9m c\u1ee7a \u0111\u1ed1i th\u1ee7. X\u00e2y d\u1ef1ng l\u1ea1i uy t\u00edn \u0111\u00e3 m\u1ea5t l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ed1n k\u00e9m v\u00e0 m\u1ea5t nhi\u1ec1u th\u1eddi gian.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-Chi-phi-khac-phuc-khong-lo\"><\/span><strong>3. Chi ph\u00ed kh\u1eafc ph\u1ee5c kh\u1ed5ng l\u1ed3<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>:<\/strong>\u0110\u1ec3 ch\u1ed1ng l\u1ea1i m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS, doanh nghi\u1ec7p s\u1ebd ph\u1ea3i chi tr\u1ea3 cho nhi\u1ec1u kho\u1ea3n: chi ph\u00ed cho c\u00e1c chuy\u00ean gia an ninh m\u1ea1ng, chi ph\u00ed mua s\u1eafm c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 kh\u1ea9n c\u1ea5p, chi ph\u00ed nh\u00e2n s\u1ef1 l\u00e0m vi\u1ec7c ngo\u00e0i gi\u1edd \u0111\u1ec3 x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Anh-huong-tieu-cuc-den-SEO\"><\/span><strong>4. \u1ea2nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn SEO<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi website c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 truy c\u1eadp trong m\u1ed9t th\u1eddi gian d\u00e0i, c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u01b0 Google s\u1ebd ghi nh\u1eadn \u0111i\u1ec1u n\u00e0y. N\u1ebfu t\u00ecnh tr\u1ea1ng downtime di\u1ec5n ra th\u01b0\u1eddng xuy\u00ean, th\u1ee9 h\u1ea1ng t\u1eeb kh\u00f3a c\u1ee7a b\u1ea1n tr\u00ean trang k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm s\u1ebd b\u1ecb s\u1ee5t gi\u1ea3m nghi\u00eam tr\u1ecdng, l\u00e0m m\u1ea5t \u0111i m\u1ed9t l\u01b0\u1ee3ng l\u1edbn truy c\u1eadp t\u1ef1 nhi\u00ean.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nguyen-nhan-khien-website-de-bi-tan-cong-DDoS\"><\/span><strong>Nguy\u00ean nh\u00e2n khi\u1ebfn website d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng DDoS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Kh\u00f4ng ph\u1ea3i ng\u1eabu nhi\u00ean m\u00e0 m\u1ed9t website tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau d\u1ec5 d\u00e0ng. C\u00e1c l\u1ed7 h\u1ed5ng v\u1ec1 k\u1ef9 thu\u1eadt v\u00e0 quy tr\u00ecnh qu\u1ea3n tr\u1ecb ch\u00ednh l\u00e0 nh\u1eefng &#8220;c\u00e1nh c\u1eeda m\u1edf&#8221; m\u1eddi g\u1ecdi hacker. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c nguy\u00ean nh\u00e2n n\u00e0y s\u1ebd gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng gia c\u1ed1 h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ha-tang-may-chu-yeu-khong-co-can-bang-tai-Load-Balancing\"><\/span><strong>H\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 y\u1ebfu, kh\u00f4ng c\u00f3 c\u00e2n b\u1eb1ng t\u1ea3i (Load Balancing)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nhi\u1ec1u doanh nghi\u1ec7p nh\u1ecf v\u00e0 v\u1eeba, v\u00ec mu\u1ed1n ti\u1ebft ki\u1ec7m chi ph\u00ed, th\u01b0\u1eddng l\u1ef1a ch\u1ecdn c\u00e1c g\u00f3i hosting gi\u00e1 r\u1ebb v\u1edbi t\u00e0i nguy\u00ean h\u1ea1n ch\u1ebf. C\u00e1c m\u00e1y ch\u1ee7 n\u00e0y c\u00f3 b\u0103ng th\u00f4ng th\u1ea5p, c\u1ea5u h\u00ecnh y\u1ebfu, d\u1ec5 d\u00e0ng b\u1ecb &#8220;\u0111\u00e1nh g\u1ee5c&#8221; ch\u1ec9 v\u1edbi m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng quy m\u00f4 nh\u1ecf. Ngo\u00e0i ra, vi\u1ec7c kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng <a href=\"https:\/\/interdata.vn\/blog\/load-balancing\/\">c\u00e2n b\u1eb1ng t\u1ea3i<\/a> (ph\u00e2n chia l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp ra nhi\u1ec1u m\u00e1y ch\u1ee7) khi\u1ebfn to\u00e0n b\u1ed9 g\u00e1nh n\u1eb7ng d\u1ed3n v\u00e0o m\u1ed9t m\u00e1y ch\u1ee7 duy nh\u1ea5t, l\u00e0m t\u0103ng nguy c\u01a1 qu\u00e1 t\u1ea3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thieu-cac-lop-bao-ve-nhu-Tuong-lua-Firewall-hoac-CDN\"><\/span><strong>Thi\u1ebfu c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 nh\u01b0 T\u01b0\u1eddng l\u1eeda (Firewall) ho\u1eb7c CDN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t h\u1ec7 th\u1ed1ng kh\u00f4ng c\u00f3 c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 chuy\u00ean d\u1ee5ng gi\u1ed1ng nh\u01b0 m\u1ed9t ng\u00f4i nh\u00e0 kh\u00f4ng c\u00f3 h\u00e0ng r\u00e0o. T\u01b0\u1eddng l\u1eeda gi\u00fap l\u1ecdc c\u00e1c truy c\u1eadp \u0111\u1ed9c h\u1ea1i, trong khi <a href=\"https:\/\/interdata.vn\/blog\/cdn-la-gi\/\">CDN<\/a> nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/cloudflare-la-gi\/\">Cloudflare<\/a> kh\u00f4ng ch\u1ec9 gi\u00fap t\u0103ng t\u1ed1c website m\u00e0 c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS quy m\u00f4 l\u1edbn tr\u01b0\u1edbc khi ch\u00fang k\u1ecbp ch\u1ea1m \u0111\u1ebfn m\u00e1y ch\u1ee7 g\u1ed1c c\u1ee7a b\u1ea1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cau-hinh-bao-mat-may-chu-chua-duoc-toi-uu\"><\/span><strong>C\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt m\u00e1y ch\u1ee7 ch\u01b0a \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c l\u1ed7i c\u1ea5u h\u00ecnh \u0111\u01a1n gi\u1ea3n nh\u01b0 \u0111\u1ec3 m\u1edf c\u00e1c c\u1ed5ng (<a href=\"https:\/\/interdata.vn\/blog\/port-la-gi\/\">port<\/a>) kh\u00f4ng c\u1ea7n thi\u1ebft, kh\u00f4ng c\u1eadp nh\u1eadt phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m, ho\u1eb7c s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u y\u1ebfu c\u00f3 th\u1ec3 b\u1ecb hacker khai th\u00e1c \u0111\u1ec3 c\u00e0i c\u1eafm botnet ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbp \u1ee9ng d\u1ee5ng. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u1ea5u h\u00ecnh l\u00e0 m\u1ed9t b\u01b0\u1edbc ph\u00f2ng th\u1ee7 c\u01a1 b\u1ea3n nh\u01b0ng l\u1ea1i th\u01b0\u1eddng b\u1ecb b\u1ecf qua.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Khong-co-he-thong-giam-sat-luu-luong-truy-cap-Traffic-Monitoring\"><\/span><strong>Kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp (Traffic Monitoring)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n kh\u00f4ng theo d\u00f5i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0o website c\u1ee7a m\u00ecnh, b\u1ea1n s\u1ebd kh\u00f4ng th\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng \u2013 d\u1ea5u hi\u1ec7u c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng s\u1eafp x\u1ea3y ra. Vi\u1ec7c thi\u1ebfu h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t khi\u1ebfn b\u1ea1n r\u01a1i v\u00e0o th\u1ebf b\u1ecb \u0111\u1ed9ng, ch\u1ec9 c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng khi s\u1ef1 c\u1ed1 \u0111\u00e3 x\u1ea3y ra v\u00e0 thi\u1ec7t h\u1ea1i \u0111\u00e3 h\u00ecnh th\u00e0nh.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-dau-hieu-nhan-biet-bi-DDoS\"><\/span>C\u00e1c d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft b\u1ecb DDoS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft r\u00f5 r\u00e0ng nh\u1ea5t c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS l\u00e0 trang web ho\u1eb7c d\u1ecbch v\u1ee5 \u0111\u1ed9t ng\u1ed9t tr\u1edf n\u00ean ch\u1eadm ch\u1ea1p ho\u1eb7c kh\u00f4ng th\u1ec3 truy c\u1eadp. Tuy nhi\u00ean, do m\u1ed9t <a href=\"https:\/\/interdata.vn\/blog\/so-nguyen-integer\/\">s\u1ed1 nguy\u00ean<\/a> nh\u00e2n kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1ef1 gia t\u0103ng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp h\u1ee3p ph\u00e1p, c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng t\u1ef1, n\u00ean th\u01b0\u1eddng c\u1ea7n ph\u1ea3i \u0111i\u1ec1u tra th\u00eam.<\/p>\n<p>C\u00e1c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 b\u1ea1n ph\u00e1t hi\u1ec7n m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u sau \u0111\u00e2y c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS:<\/p>\n<ul>\n<li><strong>L\u01b0\u1ee3ng truy c\u1eadp \u0111\u00e1ng ng\u1edd t\u1eeb m\u1ed9t \u0111\u1ecba ch\u1ec9 IP ho\u1eb7c d\u1ea3i IP duy nh\u1ea5t:<\/strong> N\u1ebfu b\u1ea1n th\u1ea5y l\u01b0\u1ee3ng truy c\u1eadp b\u1ea5t th\u01b0\u1eddng \u0111\u1ebfn t\u1eeb m\u1ed9t ngu\u1ed3n ho\u1eb7c m\u1ed9t ph\u1ea1m vi IP nh\u1ecf, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a t\u1ea5n c\u00f4ng DDoS.<\/li>\n<li><strong>Lu\u1ed3ng truy c\u1eadp t\u1eeb ng\u01b0\u1eddi d\u00f9ng c\u00f3 c\u00f9ng h\u1ed3 s\u01a1 h\u00e0nh vi:<\/strong> V\u00ed d\u1ee5, c\u00f9ng lo\u1ea1i thi\u1ebft b\u1ecb, v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd ho\u1eb7c phi\u00ean b\u1ea3n tr\u00ecnh duy\u1ec7t web. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 cho th\u1ea5y l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c t\u1ea1o t\u1ef1 \u0111\u1ed9ng b\u1edfi botnet.<\/li>\n<li><strong>T\u0103ng \u0111\u1ed9t bi\u1ebfn c\u00e1c y\u00eau c\u1ea7u t\u1edbi m\u1ed9t trang ho\u1eb7c \u0111i\u1ec3m cu\u1ed1i c\u1ee5 th\u1ec3:<\/strong> N\u1ebfu m\u1ed9t trang ho\u1eb7c \u0111i\u1ec3m cu\u1ed1i nh\u1eadn \u0111\u01b0\u1ee3c s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u t\u0103ng v\u1ecdt b\u1ea5t th\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u00f3 l\u00fd do r\u00f5 r\u00e0ng, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a t\u1ea5n c\u00f4ng DDoS.<\/li>\n<li><strong>C\u00e1c m\u1eabu truy c\u1eadp b\u1ea5t th\u01b0\u1eddng:<\/strong> Ch\u1eb3ng h\u1ea1n nh\u01b0 t\u0103ng \u0111\u1ed9t bi\u1ebfn v\u00e0o nh\u1eefng gi\u1edd l\u1ea1 trong ng\u00e0y ho\u1eb7c theo c\u00e1c m\u1eabu kh\u00f4ng t\u1ef1 nhi\u00ean (v\u00ed d\u1ee5: t\u0103ng \u0111\u1ed9t bi\u1ebfn 10 ph\u00fat m\u1ed9t l\u1ea7n).<\/li>\n<li><strong>M\u1ea1ng ho\u1ea1t \u0111\u1ed9ng ch\u1eadm v\u00e0 b\u1ea5t th\u01b0\u1eddng:<\/strong> B\u1ea1n nh\u1eadn th\u1ea5y hi\u1ec7u su\u1ea5t m\u1ea1ng gi\u1ea3m s\u00fat \u0111\u00e1ng k\u1ec3 v\u00e0 kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><strong>Website, c\u1eeda h\u00e0ng tr\u1ef1c tuy\u1ebfn ho\u1eb7c d\u1ecbch v\u1ee5 kh\u00e1c ho\u00e0n to\u00e0n ng\u1eebng ho\u1ea1t \u0111\u1ed9ng (offline):<\/strong> \u0110\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u nghi\u00eam tr\u1ecdng cho th\u1ea5y b\u1ea1n c\u00f3 th\u1ec3 \u0111ang b\u1ecb t\u1ea5n c\u00f4ng DDoS.<\/li>\n<\/ul>\n<p>Ngo\u00e0i ra c\u00f2n c\u00f3 nh\u1eefng d\u1ea5u hi\u1ec7u c\u1ee5 th\u1ec3 h\u01a1n v\u1ec1 t\u1ea5n c\u00f4ng DDoS, c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i t\u1ea5n c\u00f4ng.<\/p>\n<figure id=\"attachment_35008\" aria-describedby=\"caption-attachment-35008\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-35008\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dau-hieu-nhan-biet-bi-DDoS.jpg\" alt=\"D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft b\u1ecb DDoS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dau-hieu-nhan-biet-bi-DDoS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dau-hieu-nhan-biet-bi-DDoS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Dau-hieu-nhan-biet-bi-DDoS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-35008\" class=\"wp-caption-text\">D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft b\u1ecb DDoS<\/figcaption><\/figure>\n<div style=\"background-color: #f0f4ff; padding: 15px; border-left: 5px solid #0D6EFD; border-radius: 8px;\"><strong>InterData<\/strong> cung c\u1ea5p <a style=\"color: #0d6efd; font-weight: bold;\" href=\"https:\/\/interdata.vn\/thue-hosting\/\">d\u1ecbch v\u1ee5 thu\u00ea Hosting<\/a>, <a style=\"color: #0d6efd; font-weight: bold;\" href=\"https:\/\/interdata.vn\/thue-vps\/\">thu\u00ea VPS<\/a> v\u00e0 <a style=\"color: #0d6efd; font-weight: bold;\" href=\"https:\/\/interdata.vn\/cloud-server\/\">Cloud Server<\/a> \u0111\u01b0\u1ee3c trang b\u1ecb <strong>Firewall ch\u1ed1ng DDoS c\u00f4ng su\u1ea5t \u0111\u1ebfn 80Gbps<\/strong> c\u00f9ng nhi\u1ec1u <strong>gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt h\u1ec7 th\u1ed1ng chuy\u00ean s\u00e2u<\/strong> gi\u00fap b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u to\u00e0n di\u1ec7n. V\u1edbi <strong>t\u01b0\u1eddng l\u1eeda th\u00f4ng minh<\/strong> v\u00e0 <strong>DDoS Protection<\/strong>, InterData \u0111\u1ea3m b\u1ea3o website c\u1ee7a b\u1ea1n lu\u00f4n an to\u00e0n tuy\u1ec7t \u0111\u1ed1i, tr\u00e1nh gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng kinh doanh, gi\u1eef d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o m\u1eadt t\u1ed1i \u0111a.<\/p>\n<p><strong><a href=\"https:\/\/interdata.vn\/\">Li\u00ean h\u1ec7 InterData ngay h\u00f4m nay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n l\u1ef1a ch\u1ecdn g\u00f3i d\u1ecbch v\u1ee5 ph\u00f9 h\u1ee3p<\/a><\/strong>, n\u00e2ng t\u1ea7m hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o v\u1ec7 website c\u1ee7a b\u1ea1n to\u00e0n di\u1ec7n!<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Huong-dan-cach-phong-chong-tan-cong-DDoS-hieu-qua\"><\/span>H\u01b0\u1edbng d\u1eabn c\u00e1ch ph\u00f2ng ch\u1ed1ng t\u1ea5n c\u00f4ng DDoS hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ph\u00f2ng ch\u1ed1ng m\u1ed9t cu\u1ed9c <strong>t\u1ea5n c\u00f4ng DDoS<\/strong> kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u00e0nh \u0111\u1ed9ng \u0111\u01a1n l\u1ebb m\u00e0 l\u00e0 m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u0111a t\u1ea7ng, k\u1ebft h\u1ee3p c\u1ea3 gi\u1ea3i ph\u00e1p c\u00f4ng ngh\u1ec7 v\u00e0 quy tr\u00ecnh v\u1eadn h\u00e0nh. Thay v\u00ec ch\u1edd \u0111\u1ee3i cu\u1ed9c t\u1ea5n c\u00f4ng x\u1ea3y ra, vi\u1ec7c x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00f2ng th\u1ee7 v\u1eefng ch\u1eafc t\u1eeb s\u1edbm l\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn th\u00f4ng minh v\u00e0 ti\u1ebft ki\u1ec7m nh\u1ea5t.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c <strong>gi\u1ea3i ph\u00e1p ch\u1ed1ng DDoS<\/strong> hi\u1ec7u qu\u1ea3 m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tri\u1ec3n khai ngay.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-Tuong-lua-Firewall-Gioi-han-toc-do-Rate-Limiting\"><\/span><strong>S\u1eed d\u1ee5ng T\u01b0\u1eddng l\u1eeda (Firewall) &amp; Gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 (Rate Limiting)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 l\u1edbp ph\u00f2ng th\u1ee7 c\u01a1 b\u1ea3n nh\u1ea5t. <strong>T\u01b0\u1eddng l\u1eeda ch\u1ed1ng DDoS<\/strong> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 ch\u1eb7n c\u00e1c truy c\u1eadp t\u1eeb nh\u1eefng \u0111\u1ecba ch\u1ec9 IP \u0111\u00e1ng ng\u1edd ho\u1eb7c c\u00e1c k\u1ebft n\u1ed1i c\u00f3 d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng.<\/p>\n<p>Tuy nhi\u00ean, t\u01b0\u1eddng l\u1eeda m\u1ea1ng truy\u1ec1n th\u1ed1ng ch\u1ec9 hi\u1ec7u qu\u1ea3 v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n-c\u00f4ng quy m\u00f4 nh\u1ecf. Khi \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS l\u1edbn, ch\u00ednh t\u01b0\u1eddng l\u1eeda c\u0169ng c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh \u0111i\u1ec3m b\u1ecb qu\u00e1 t\u1ea3i \u0111\u1ea7u ti\u00ean.<\/p>\n<p>\u0110\u1ec3 t\u0103ng c\u01b0\u1eddng hi\u1ec7u qu\u1ea3, b\u1ea1n n\u00ean k\u1ebft h\u1ee3p v\u1edbi <strong>Gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 (Rate Limiting)<\/strong>. K\u1ef9 thu\u1eadt n\u00e0y cho ph\u00e9p b\u1ea1n gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u m\u00e0 m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u00f3 th\u1ec3 g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<p>V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh \u0111\u1ec3 m\u1ed9t IP ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p g\u1eedi 60 y\u00eau c\u1ea7u m\u1ed7i ph\u00fat. N\u1ebfu v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng n\u00e0y, c\u00e1c y\u00eau c\u1ea7u ti\u1ebfp theo s\u1ebd b\u1ecb ch\u1eb7n t\u1ea1m th\u1eddi. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n c\u00e1c bot t\u1ef1 \u0111\u1ed9ng t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn y\u00eau c\u1ea7u \u0111\u1ec3 l\u00e0m c\u1ea1n ki\u1ec7t t\u00e0i nguy\u00ean m\u00e1y ch\u1ee7.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Trien-khai-Mang-luoi-phan-phoi-noi-dung-CDN-WAF\"><\/span><strong>Tri\u1ec3n khai M\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) &amp; WAF<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng <strong>c\u00e1ch ch\u1ed1ng DDoS<\/strong> hi\u1ec7u qu\u1ea3 v\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay.<\/p>\n<h4><strong>M\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN)<\/strong><\/h4>\n<p>M\u1ed9t CDN nh\u01b0 <strong>Cloudflare<\/strong> hay <strong>AWS CloudFront<\/strong> l\u00e0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf nhi\u1ec1u v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd tr\u00ean to\u00e0n c\u1ea7u. Thay v\u00ec t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o m\u00e1y ch\u1ee7 g\u1ed1c c\u1ee7a b\u1ea1n, h\u1ecd s\u1ebd truy c\u1eadp v\u00e0o m\u00e1y ch\u1ee7 CDN g\u1ea7n nh\u1ea5t.<\/p>\n<p>Khi m\u1ed9t cu\u1ed9c t\u1ea5n-c\u00f4ng DDoS x\u1ea3y ra, l\u01b0u l\u01b0\u1ee3ng t\u1ea5n c\u00f4ng kh\u1ed5ng l\u1ed3 s\u1ebd \u0111\u01b0\u1ee3c d\u00e0n tr\u1ea3i v\u00e0 h\u1ea5p th\u1ee5 b\u1edfi to\u00e0n b\u1ed9 m\u1ea1ng l\u01b0\u1edbi CDN r\u1ed9ng l\u1edbn n\u00e0y, thay v\u00ec d\u1ed3n v\u00e0o m\u1ed9t \u0111i\u1ec3m duy nh\u1ea5t l\u00e0 m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i \u00e1p l\u1ef1c v\u00e0 gi\u1eef cho website c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h4><strong>T\u01b0\u1eddng l\u1eeda \u1ee9ng d\u1ee5ng web (WAF &#8211; Web Application Firewall)<\/strong><\/h4>\n<p>N\u1ebfu CDN l\u00e0 l\u00e1 ch\u1eafn ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng b\u0103ng th\u00f4ng, th\u00ec <a href=\"https:\/\/interdata.vn\/blog\/waf-la-gi\/\">WAF<\/a> l\u00e0 ng\u01b0\u1eddi b\u1ea3o v\u1ec7 th\u00f4ng minh ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u1edf l\u1edbp \u1ee9ng d\u1ee5ng (Layer 7).<\/p>\n<p><strong>WAF<\/strong>\u00a0l\u00e0 m\u1ed9t l\u1edbp l\u1ecdc n\u1eb1m gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/web-application-la-gi\/\">\u1ee9ng d\u1ee5ng web<\/a> c\u1ee7a b\u1ea1n, c\u00f3 kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch s\u00e2u n\u1ed9i dung c\u1ee7a t\u1eebng y\u00eau c\u1ea7u (request). N\u00f3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ch\u1eb7n c\u00e1c k\u1ef9 thu\u1eadt t\u1ea5n c\u00f4ng tinh vi nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/structured-query-language-sql-la-gi\/\">SQL<\/a> injection, Cross-Site Scripting (<a href=\"https:\/\/interdata.vn\/blog\/tan-cong-xss-la-gi\/\">XSS<\/a>), v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng HTTP flood trong m\u1ed9t chi\u1ebfn d\u1ecbch DDoS. C\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 <strong>AWS Shield<\/strong> th\u01b0\u1eddng t\u00edch h\u1ee3p s\u1eb5n WAF \u0111\u1ec3 cung c\u1ea5p m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 to\u00e0n di\u1ec7n.<\/p>\n<figure id=\"attachment_35009\" aria-describedby=\"caption-attachment-35009\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-35009\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Cach-phong-chong-tan-cong-DDoS-hieu-qua.jpg\" alt=\"C\u00e1ch ph\u00f2ng ch\u1ed1ng t\u1ea5n c\u00f4ng DDoS hi\u1ec7u qu\u1ea3\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Cach-phong-chong-tan-cong-DDoS-hieu-qua.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Cach-phong-chong-tan-cong-DDoS-hieu-qua-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/10\/Cach-phong-chong-tan-cong-DDoS-hieu-qua-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-35009\" class=\"wp-caption-text\">C\u00e1ch ph\u00f2ng ch\u1ed1ng t\u1ea5n c\u00f4ng DDoS hi\u1ec7u qu\u1ea3<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Cau-hinh-phia-May-chu-Mang-Server-Network\"><\/span><strong>C\u1ea5u h\u00ecnh ph\u00eda M\u00e1y ch\u1ee7 &amp; M\u1ea1ng (Server &amp; Network)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng, vi\u1ec7c <strong>c\u1ea5u h\u00ecnh ch\u1ed1ng DDoS<\/strong> \u1edf c\u1ea5p \u0111\u1ed9 m\u00e1y ch\u1ee7 v\u00e0 m\u1ea1ng l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. C\u00e1c bi\u1ec7n ph\u00e1p n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng &#8220;t\u1ef1 v\u1ec7&#8221; c\u1ee7a h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi c\u1ea7n \u0111\u1ebfn s\u1ef1 can thi\u1ec7p t\u1eeb c\u00e1c d\u1ecbch v\u1ee5 b\u00ean ngo\u00e0i.<\/p>\n<ul>\n<li><strong>Gi\u1edbi h\u1ea1n k\u1ebft n\u1ed1i \u0111\u1ed3ng th\u1eddi:<\/strong> C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 web (<a href=\"https:\/\/interdata.vn\/blog\/apache-la-gi\/\">Apache<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/nginx-la-gi\/\">Nginx<\/a>) \u0111\u1ec3 gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng k\u1ebft n\u1ed1i \u0111\u1ed3ng th\u1eddi t\u1eeb m\u1ed9t \u0111\u1ecba ch\u1ec9 IP duy nh\u1ea5t.<\/li>\n<li><strong>Tinh ch\u1ec9nh Timeout:<\/strong> Gi\u1ea3m th\u1eddi gian ch\u1edd k\u1ebft n\u1ed1i (timeout) \u0111\u1ec3 nhanh ch\u00f3ng \u0111\u00f3ng c\u00e1c k\u1ebft n\u1ed1i \u0111\u00e1ng ng\u1edd, gi\u1ea3i ph\u00f3ng t\u00e0i nguy\u00ean cho c\u00e1c y\u00eau c\u1ea7u h\u1ee3p l\u1ec7.<\/li>\n<li><strong>Ch\u1eb7n IP v\u00e0 Qu\u1ed1c gia:<\/strong> N\u1ebfu b\u1ea1n nh\u1eadn th\u1ea5y ph\u1ea7n l\u1edbn l\u01b0u l\u01b0\u1ee3ng t\u1ea5n c\u00f4ng \u0111\u1ebfn t\u1eeb m\u1ed9t d\u1ea3i IP ho\u1eb7c m\u1ed9t qu\u1ed1c gia c\u1ee5 th\u1ec3 m\u00e0 b\u1ea1n kh\u00f4ng kinh doanh, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng <strong>ch\u1eb7n IP t\u1ea5n c\u00f4ng<\/strong> ho\u1eb7c to\u00e0n b\u1ed9 qu\u1ed1c gia \u0111\u00f3 \u1edf c\u1ea5p \u0111\u1ed9 t\u01b0\u1eddng l\u1eeda ho\u1eb7c m\u00e1y ch\u1ee7.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Chuan-bi-Bang-thong-du-phong\"><\/span><strong>Chu\u1ea9n b\u1ecb B\u0103ng th\u00f4ng d\u1ef1 ph\u00f2ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n nh\u01b0ng hi\u1ec7u qu\u1ea3 l\u00e0 \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 \u0111\u1ee7 b\u0103ng th\u00f4ng \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c \u0111\u1ee3t t\u0103ng l\u01b0u l\u01b0\u1ee3ng \u0111\u1ed9t bi\u1ebfn. Thay v\u00ec s\u1eed d\u1ee5ng m\u1ed9t g\u00f3i b\u0103ng th\u00f4ng c\u1ed1 \u0111\u1ecbnh, h\u00e3y l\u00e0m vi\u1ec7c v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 hosting ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/data-center-la-gi\/\">trung t\u00e2m d\u1eef li\u1ec7u<\/a> \u0111\u1ec3 c\u00f3 m\u1ed9t g\u00f3i b\u0103ng th\u00f4ng linh ho\u1ea1t (burstable bandwidth).<\/p>\n<p>\u0110i\u1ec1u n\u00e0y cho ph\u00e9p h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n t\u1ef1 \u0111\u1ed9ng m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng khi c\u1ea7n thi\u1ebft, cung c\u1ea5p m\u1ed9t kho\u1ea3ng &#8220;th\u1eddi gian v\u00e0ng&#8221; \u0111\u1ec3 b\u1ea1n k\u1ecbp th\u1eddi nh\u1eadn di\u1ec7n v\u00e0 tri\u1ec3n khai c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3 tr\u01b0\u1edbc khi h\u1ec7 th\u1ed1ng b\u1ecb s\u1eadp ho\u00e0n to\u00e0n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Gioi-han-so-luong-yeu-cau-cua-may-chu\"><\/span><strong>Gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u c\u1ee7a m\u00e1y ch\u1ee7<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ea1n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh tr\u1ef1c ti\u1ebfp tr\u00ean m\u00e1y ch\u1ee7 web \u0111\u1ec3 ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd h\u01a1n c\u00e1c y\u00eau c\u1ea7u. V\u00ed d\u1ee5, tr\u00ean Nginx, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng module <code>ngx_http_limit_req_module<\/code> \u0111\u1ec3 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd y\u00eau c\u1ea7u.<\/p>\n<p>T\u01b0\u01a1ng t\u1ef1, tr\u00ean Apache, module <code>mod_ratelimit<\/code> cho ph\u00e9p b\u1ea1n \u0111\u1eb7t m\u1ed9t ng\u01b0\u1ee1ng b\u0103ng th\u00f4ng t\u1ed1i \u0111a cho m\u1ed7i k\u1ebft n\u1ed1i. Vi\u1ec7c n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u00f4ng m\u1ed9t k\u1ebft n\u1ed1i \u0111\u01a1n l\u1ebb n\u00e0o c\u00f3 th\u1ec3 chi\u1ebfm d\u1ee5ng qu\u00e1 nhi\u1ec1u t\u00e0i nguy\u00ean c\u1ee7a m\u00e1y ch\u1ee7, l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng d\u1ef1a tr\u00ean vi\u1ec7c m\u1edf nhi\u1ec1u k\u1ebft n\u1ed1i v\u00e0 g\u1eedi y\u00eau c\u1ea7u t\u1eeb t\u1eeb.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-Dich-vu-chong-DDoS-chuyen-dung\"><\/span><strong>S\u1eed d\u1ee5ng D\u1ecbch v\u1ee5 ch\u1ed1ng DDoS chuy\u00ean d\u1ee5ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi quy m\u00f4 kinh doanh c\u1ee7a b\u1ea1n l\u1edbn h\u01a1n ho\u1eb7c b\u1ea1n ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c l\u0129nh v\u1ef1c nh\u1ea1y c\u1ea3m (t\u00e0i ch\u00ednh, game, ch\u00ednh ph\u1ee7 \u0111i\u1ec7n t\u1eed&#8230;), vi\u1ec7c d\u1ef1a v\u00e0o c\u00e1c <strong>d\u1ecbch v\u1ee5 ch\u1ed1ng DDoS<\/strong> chuy\u00ean nghi\u1ec7p l\u00e0 \u0111i\u1ec1u b\u1eaft bu\u1ed9c. C\u00e1c nh\u00e0 cung c\u1ea5p h\u00e0ng \u0111\u1ea7u nh\u01b0 <strong>Cloudflare<\/strong>, <strong>Akamai<\/strong>, <strong>Imperva<\/strong>\u00a0cung c\u1ea5p c\u00e1c <strong>gi\u1ea3i ph\u00e1p ch\u1ed1ng DDoS<\/strong> to\u00e0n di\u1ec7n.<\/p>\n<p>C\u00e1c <strong>anti-DDoS service<\/strong> n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch chuy\u1ec3n h\u01b0\u1edbng to\u00e0n b\u1ed9 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp c\u1ee7a b\u1ea1n th\u00f4ng qua m\u1ed9t &#8220;trung t\u00e2m l\u1ecdc&#8221; (Scrubbing Center) kh\u1ed5ng l\u1ed3. T\u1ea1i \u0111\u00e2y, c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/thuat-toan-algorithm\/\">thu\u1eadt to\u00e1n<\/a> th\u00f4ng minh v\u00e0 \u0111\u1ed9i ng\u0169 chuy\u00ean gia s\u1ebd ph\u00e2n t\u00edch, lo\u1ea1i b\u1ecf l\u01b0u l\u01b0\u1ee3ng \u0111\u1ed9c h\u1ea1i v\u00e0 ch\u1ec9 chuy\u1ec3n l\u01b0u l\u01b0\u1ee3ng &#8220;s\u1ea1ch&#8221; \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cac-bien-phap-noi-bo-cho-doanh-nghiep\"><\/span><strong>C\u00e1c bi\u1ec7n ph\u00e1p n\u1ed9i b\u1ed9 cho doanh nghi\u1ec7p<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f4ng ngh\u1ec7 ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u00e2u chuy\u1ec7n. Doanh nghi\u1ec7p c\u1ea7n x\u00e2y d\u1ef1ng m\u1ed9t quy tr\u00ecnh \u1ee9ng ph\u00f3 v\u1eefng ch\u1eafc.<\/p>\n<ul>\n<li><strong>X\u00e2y d\u1ef1ng k\u1ebf ho\u1ea1ch \u1ee9ng ph\u00f3 (DDoS Mitigation Plan):<\/strong> Chu\u1ea9n b\u1ecb m\u1ed9t k\u1ecbch b\u1ea3n chi ti\u1ebft: Ai l\u00e0 ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m? C\u1ea7n li\u00ean h\u1ec7 v\u1edbi ai (nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, chuy\u00ean gia)? C\u00e1c b\u01b0\u1edbc c\u1ea7n th\u1ef1c hi\u1ec7n l\u00e0 g\u00ec? Vi\u1ec7c c\u00f3 s\u1eb5n m\u1ed9t <strong>k\u1ebf ho\u1ea1ch \u1ee9ng ph\u00f3 DDoS<\/strong> gi\u00fap b\u1ea1n kh\u00f4ng b\u1ecb ho\u1ea3ng lo\u1ea1n v\u00e0 h\u00e0nh \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 khi s\u1ef1 c\u1ed1 x\u1ea3y ra.<\/li>\n<li><strong>Sao l\u01b0u d\u1eef li\u1ec7u \u0111\u1ecbnh k\u1ef3 (Backup):<\/strong> M\u1eb7c d\u00f9 DDoS kh\u00f4ng tr\u1ef1c ti\u1ebfp \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u, n\u00f3 c\u00f3 th\u1ec3 l\u00e0 v\u1ecf b\u1ecdc cho c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng kh\u00e1c. Lu\u00f4n th\u1ef1c hi\u1ec7n <strong>backup ch\u1ed1ng DDoS<\/strong> m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean v\u00e0 l\u01b0u tr\u1eef c\u00e1c b\u1ea3n sao \u1edf m\u1ed9t n\u01a1i an to\u00e0n.<\/li>\n<li><strong>Thi\u1ebft l\u1eadp c\u1ea3nh b\u00e1o s\u1edbm:<\/strong> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t \u0111\u1ec3 thi\u1ebft l\u1eadp ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o. Khi CPU, RAM, ho\u1eb7c b\u0103ng th\u00f4ng v\u01b0\u1ee3t qu\u00e1 m\u1ed9t m\u1ee9c nh\u1ea5t \u0111\u1ecbnh (v\u00ed d\u1ee5 80%), h\u1ec7 th\u1ed1ng s\u1ebd t\u1ef1 \u0111\u1ed9ng g\u1eedi th\u00f4ng b\u00e1o cho \u0111\u1ed9i ng\u0169 qu\u1ea3n tr\u1ecb \u0111\u1ec3 h\u1ecd c\u00f3 th\u1ec3 ki\u1ec3m tra v\u00e0 h\u00e0nh \u0111\u1ed9ng k\u1ecbp th\u1eddi.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Dinh-tuyen-lo-den\"><\/span>\u0110\u1ecbnh tuy\u1ebfn l\u1ed7 \u0111en<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t h\u00ecnh th\u1ee9c ph\u00f2ng th\u1ee7 kh\u00e1c l\u00e0 \u0111\u1ecbnh tuy\u1ebfn l\u1ed7 \u0111en, trong \u0111\u00f3 qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng \u2014 ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet c\u1ee7a t\u1ed5 ch\u1ee9c \u2014 t\u1ea1o m\u1ed9t tuy\u1ebfn \u0111\u01b0\u1eddng l\u1ed7 \u0111en v\u00e0 \u0111\u1ea9y l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0o l\u1ed7 \u0111en \u0111\u00f3.<\/p>\n<p>V\u1edbi chi\u1ebfn l\u01b0\u1ee3c n\u00e0y, t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp, c\u1ea3 t\u1ed1t v\u00e0 x\u1ea5u, \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ebfn m\u1ed9t tuy\u1ebfn \u0111\u01b0\u1eddng null v\u00e0 v\u1ec1 c\u01a1 b\u1ea3n b\u1ecb lo\u1ea1i b\u1ecf kh\u1ecfi m\u1ea1ng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 kh\u00e1 c\u1ef1c \u0111oan, v\u00ec l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp h\u1ee3p ph\u00e1p c\u0169ng b\u1ecb d\u1eebng l\u1ea1i v\u00e0 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1ed5n th\u1ea5t kinh doanh.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mot-so-giai-phap-phong-chong-DDoS-cho-doanh-nghiep\"><\/span>M\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p ph\u00f2ng ch\u1ed1ng DDoS cho doanh nghi\u1ec7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tr\u01b0\u1edbc khi m\u1ed1i \u0111e d\u1ecda m\u1ea1ng xu\u1ea5t hi\u1ec7n, b\u1ea1n c\u1ea7n c\u00f3 s\u1eb5n k\u1ebf ho\u1ea1ch \u0111\u1ed1i ph\u00f3. S\u1ef1 chu\u1ea9n b\u1ecb l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c nhanh ch\u00f3ng m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 x\u00e2y d\u1ef1ng k\u1ebf ho\u1ea1ch h\u00e0nh \u0111\u1ed9ng:<\/p>\n<ul>\n<li><strong>Ph\u00e1t tri\u1ec3n chi\u1ebfn l\u01b0\u1ee3c ch\u1ed1ng DDoS:<\/strong> X\u00e2y d\u1ef1ng m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c to\u00e0n di\u1ec7n \u0111\u1ec3 ph\u00e1t hi\u1ec7n, ng\u0103n ch\u1eb7n v\u00e0 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS.<\/li>\n<li><strong>\u0110\u00e1nh gi\u00e1 r\u1ee7i ro v\u00e0 l\u1ed7 h\u1ed5ng:<\/strong> Th\u01b0\u1eddng xuy\u00ean x\u00e1c \u0111\u1ecbnh c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/lo-hong-bao-mat-la-gi\/\">l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/a> v\u00e0 \u0111\u00e1nh gi\u00e1 c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>C\u1eadp nh\u1eadt v\u00e0 b\u1ea3o tr\u00ec:<\/strong> \u0110\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 ph\u1ea7n m\u1ec1m v\u00e0 c\u00f4ng ngh\u1ec7 b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t.<\/li>\n<li><strong>\u0110\u00e0o t\u1ea1o nh\u00e2n vi\u00ean:<\/strong> T\u1ed5 ch\u1ee9c c\u00e1c bu\u1ed5i \u0111\u00e0o t\u1ea1o c\u01a1 b\u1ea3n cho nh\u00e2n vi\u00ean v\u00e0 ph\u00e2n c\u00f4ng vai tr\u00f2 c\u1ee5 th\u1ec3 trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra t\u1ea5n c\u00f4ng.<\/li>\n<li><strong>Ph\u00e2n t\u00edch r\u1ee7i ro \u0111\u1ecbnh k\u1ef3:<\/strong> Th\u1ef1c hi\u1ec7n ph\u00e2n t\u00edch r\u1ee7i ro th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c khu v\u1ef1c c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 tr\u01b0\u1edbc c\u00e1c m\u1ed1i \u0111e d\u1ecda.<\/li>\n<li><strong>Th\u00e0nh l\u1eadp \u0111\u1ed9i \u1ee9ng ph\u00f3:<\/strong> Chu\u1ea9n b\u1ecb s\u1eb5n m\u1ed9t \u0111\u1ed9i \u1ee9ng ph\u00f3 DDoS v\u1edbi nhi\u1ec7m v\u1ee5 ch\u00ednh l\u00e0 x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng.<\/li>\n<li><strong>T\u00edch h\u1ee3p c\u00f4ng c\u1ee5 b\u1ea3o v\u1ec7:<\/strong> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n v\u00e0 ph\u00f2ng tr\u00e1nh tr\u00ean to\u00e0n b\u1ed9 ho\u1ea1t \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn, \u0111\u1ed3ng th\u1eddi \u0111\u00e0o t\u1ea1o ng\u01b0\u1eddi d\u00f9ng v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u c\u1ea7n ch\u00fa \u00fd.<\/li>\n<li><strong>\u0110\u00e1nh gi\u00e1 v\u00e0 c\u1ea3i ti\u1ebfn:<\/strong> Th\u01b0\u1eddng xuy\u00ean \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c ph\u00f2ng th\u1ee7, bao g\u1ed3m c\u1ea3 vi\u1ec7c t\u1ed5 ch\u1ee9c c\u00e1c bu\u1ed5i di\u1ec5n t\u1eadp, v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c b\u01b0\u1edbc c\u1ea3i ti\u1ebfn ti\u1ebfp theo.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cau-hoi-thuong-gap-ve-tan-cong-DDoS-FAQ\"><\/span><strong>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 t\u1ea5n c\u00f4ng DDoS (FAQ)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ph\u1ea7n n\u00e0y s\u1ebd gi\u1ea3i \u0111\u00e1p nhanh nh\u1eefng th\u1eafc m\u1eafc ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u1ec1 <strong>t\u1ea5n c\u00f4ng DDoS l\u00e0 g\u00ec<\/strong> v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan.<\/p>\n<p><strong>1. L\u00e0m sao \u0111\u1ec3 bi\u1ebft website \u0111ang b\u1ecb DDoS?<\/strong><\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft qua c\u00e1c d\u1ea5u hi\u1ec7u sau:<\/p>\n<ul>\n<li>Website ho\u1eb7c d\u1ecbch v\u1ee5 m\u1ea1ng tr\u1edf n\u00ean c\u1ef1c k\u1ef3 ch\u1eadm.<\/li>\n<li>Website kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c ho\u00e0n to\u00e0n (b\u00e1o l\u1ed7i timeout).<\/li>\n<li>B\u00e1o c\u00e1o t\u1eeb h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t cho th\u1ea5y l\u01b0\u1ee3ng truy c\u1eadp t\u0103ng \u0111\u1ed9t bi\u1ebfn, b\u1ea5t th\u01b0\u1eddng.<\/li>\n<li>L\u01b0\u1ee3ng ti\u00eau th\u1ee5 b\u0103ng th\u00f4ng, CPU, RAM c\u1ee7a m\u00e1y ch\u1ee7 t\u0103ng v\u1ecdt \u0111\u1ebfn 100%.<\/li>\n<\/ul>\n<p><strong>2. T\u1ea5n c\u00f4ng DDoS c\u00f3 vi ph\u1ea1m ph\u00e1p lu\u1eadt Vi\u1ec7t Nam kh\u00f4ng?<\/strong><\/p>\n<p><strong>C\u00f3.<\/strong> H\u00e0nh vi t\u1ea5n c\u00f4ng DDoS l\u00e0 m\u1ed9t t\u1ed9i ph\u1ea1m c\u00f4ng ngh\u1ec7 cao v\u00e0 vi ph\u1ea1m ph\u00e1p lu\u1eadt Vi\u1ec7t Nam. Theo \u0110i\u1ec1u 287 B\u1ed9 lu\u1eadt H\u00ecnh s\u1ef1 2015 (s\u1eeda \u0111\u1ed5i, b\u1ed5 sung 2017) v\u1ec1 t\u1ed9i &#8220;C\u1ea3n tr\u1edf ho\u1eb7c g\u00e2y r\u1ed1i lo\u1ea1n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng m\u00e1y t\u00ednh, m\u1ea1ng vi\u1ec5n th\u00f4ng&#8221;, ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n h\u00e0nh vi n\u00e0y c\u00f3 th\u1ec3 b\u1ecb ph\u1ea1t ti\u1ec1n ho\u1eb7c ph\u1ea1t t\u00f9 l\u00ean \u0111\u1ebfn 12 n\u0103m.<\/p>\n<p><strong>3. C\u00f3 th\u1ec3 t\u1ef1 ch\u1ed1ng DDoS \u0111\u01b0\u1ee3c kh\u00f4ng?<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng quy m\u00f4 nh\u1ecf, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p c\u01a1 b\u1ea3n nh\u01b0 ch\u1eb7n IP th\u1ee7 c\u00f4ng ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/plugin-la-gi\/\">plugin<\/a> b\u1ea3o m\u1eadt. Tuy nhi\u00ean, v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng quy m\u00f4 l\u1edbn v\u00e0 tinh vi, vi\u1ec7c t\u1ef1 ch\u1ed1ng \u0111\u1ee1 g\u1ea7n nh\u01b0 l\u00e0 b\u1ea5t kh\u1ea3 thi.<\/p>\n<p><strong>4. M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS th\u01b0\u1eddng k\u00e9o d\u00e0i bao l\u00e2u?<\/strong><\/p>\n<p>Th\u1eddi gian c\u00f3 th\u1ec3 dao \u0111\u1ed9ng r\u1ea5t l\u1edbn, t\u1eeb v\u00e0i ph\u00fat \u0111\u1ebfn v\u00e0i ng\u00e0y, th\u1eadm ch\u00ed v\u00e0i tu\u1ea7n. C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ng\u1eafn th\u01b0\u1eddng nh\u1eb1m m\u1ee5c \u0111\u00edch c\u1ea3nh c\u00e1o ho\u1eb7c t\u1ed1ng ti\u1ec1n, trong khi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng k\u00e9o d\u00e0i th\u01b0\u1eddng c\u00f3 m\u1ee5c ti\u00eau ph\u00e1 ho\u1ea1i nghi\u00eam tr\u1ecdng.<\/p>\n<p><strong>5. Chi ph\u00ed \u0111\u1ec3 ch\u1ed1ng DDoS l\u00e0 bao nhi\u00eau?<\/strong><\/p>\n<p>Chi ph\u00ed ph\u1ee5 thu\u1ed9c v\u00e0o gi\u1ea3i ph\u00e1p b\u1ea1n ch\u1ecdn. C\u00f3 nh\u1eefng d\u1ecbch v\u1ee5 CDN cung c\u1ea5p g\u00f3i mi\u1ec5n ph\u00ed v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng DDoS c\u01a1 b\u1ea3n (ph\u00f9 h\u1ee3p cho website nh\u1ecf). \u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p l\u1edbn c\u1ea7n s\u1ef1 b\u1ea3o v\u1ec7 to\u00e0n di\u1ec7n, chi ph\u00ed c\u00f3 th\u1ec3 t\u1eeb v\u00e0i tr\u0103m \u0111\u1ebfn h\u00e0ng ngh\u00ecn USD m\u1ed7i th\u00e1ng cho c\u00e1c d\u1ecbch v\u1ee5 chuy\u00ean d\u1ee5ng.<\/p>\n<p><strong>6. Website nh\u1ecf c\u00f3 c\u1ea7n lo l\u1eafng v\u1ec1 DDoS kh\u00f4ng?<\/strong><\/p>\n<p><strong>C\u00f3.<\/strong> Ng\u00e0y nay, kh\u00f4ng m\u1ed9t website n\u00e0o l\u00e0 qu\u00e1 nh\u1ecf \u0111\u1ec3 b\u1ecb t\u1ea5n c\u00f4ng. C\u00e1c c\u00f4ng c\u1ee5 t\u1ea5n c\u00f4ng DDoS ng\u00e0y c\u00e0ng tr\u1edf n\u00ean d\u1ec5 ti\u1ebfp c\u1eadn, v\u00e0 website c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau ng\u1eabu nhi\u00ean ho\u1eb7c l\u00e0 m\u1ed9t ph\u1ea7n trong m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbn h\u01a1n. Vi\u1ec7c trang b\u1ecb ki\u1ebfn th\u1ee9c v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng v\u1ec7 c\u01a1 b\u1ea3n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho m\u1ecdi ch\u1ee7 s\u1edf h\u1eefu website.<\/p>\n<p>Hi\u1ec3u r\u00f5 <strong>t\u1ea5n c\u00f4ng DDoS l\u00e0 g\u00ec<\/strong> v\u00e0 ch\u1ee7 \u0111\u1ed9ng x\u00e2y d\u1ef1ng c\u00e1c l\u1edbp ph\u00f2ng th\u1ee7 l\u00e0 chi\u1ebfn l\u01b0\u1ee3c th\u00f4ng minh nh\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 ho\u1ea1t \u0111\u1ed9ng kinh doanh tr\u00ean kh\u00f4ng gian m\u1ea1ng. \u0110\u1eebng \u0111\u1ee3i \u0111\u1ebfn khi s\u1ef1 c\u1ed1 x\u1ea3y ra.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ng\u00e0y nay, m\u1ecdi doanh nghi\u1ec7p \u0111\u1ec1u ph\u1ee5 thu\u1ed9c v\u00e0o website, h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 v\u1eadn h\u00e0nh v\u00e0 ph\u1ee5c v\u1ee5 kh\u00e1ch h\u00e0ng. Tuy nhi\u00ean, ch\u1ec9 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng b\u1ecb t\u00ea li\u1ec7t, gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng v\u00e0 g\u00e2y thi\u1ec7t h\u1ea1i<\/p>\n","protected":false},"author":11,"featured_media":35011,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[62],"class_list":["post-17639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bao-mat-an-ninh-mang","tag-bao-mat"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/17639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=17639"}],"version-history":[{"count":3,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/17639\/revisions"}],"predecessor-version":[{"id":35019,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/17639\/revisions\/35019"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/35011"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=17639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=17639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=17639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}