{"id":34059,"date":"2025-10-06T09:27:05","date_gmt":"2025-10-06T02:27:05","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=34059"},"modified":"2025-10-06T09:29:37","modified_gmt":"2025-10-06T02:29:37","slug":"ips-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/ips-la-gi\/","title":{"rendered":"IPS l\u00e0 g\u00ec? L\u00e1 ch\u1eafn m\u1ea1ng ch\u1ed1ng Zero-day ho\u1ea1t \u0111\u1ed9ng th\u1ebf n\u00e0o?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\/ips-la-gi\/#IPS-la-gi\" >IPS 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\/ips-la-gi\/#Qua-trinh-hinh-thanh-va-phat-trien-cua-IPS\" >Qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a IPS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Cac-loai-IPS-pho-bien-hien-nay\" >C\u00e1c lo\u1ea1i IPS 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-4\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#NIPS-Network-based-Intrusion-Prevention-System\" >NIPS (Network-based Intrusion Prevention System)<\/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\/ips-la-gi\/#HIPS-Host-based-Intrusion-Prevention-System\" >HIPS (Host-based Intrusion Prevention System)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#WIPS-Wireless-Intrusion-Prevention-System\" >WIPS (Wireless Intrusion Prevention System)<\/a><\/li><\/ul><\/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\/ips-la-gi\/#Nguyen-ly-hoat-dong-cua-he-thong-IPS\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng IPS<\/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\/ips-la-gi\/#Phat-hien-dua-tren-Chu-ky-Signature-based-Detection\" >Ph\u00e1t hi\u1ec7n d\u1ef1a tr\u00ean Ch\u1eef k\u00fd (Signature-based Detection)<\/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\/ips-la-gi\/#Phat-hien-dua-tren-Su-bat-thuong-Anomaly-based-Detection\" >Ph\u00e1t hi\u1ec7n d\u1ef1a tr\u00ean S\u1ef1 b\u1ea5t th\u01b0\u1eddng (Anomaly-based Detection)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Phan-tich-Giao-thuc-Trang-thai-Stateful-Protocol-Analysis\" >Ph\u00e2n t\u00edch Giao th\u1ee9c Tr\u1ea1ng th\u00e1i (Stateful Protocol Analysis)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Phat-hien-dua-tren-Heuristic-Heuristic-based-Detection\" >Ph\u00e1t hi\u1ec7n d\u1ef1a tr\u00ean Heuristic (Heuristic-based Detection)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Vai-tro-va-loi-ich-cua-IPS-trong-bao-mat\" >Vai tr\u00f2 v\u00e0 l\u1ee3i \u00edch c\u1ee7a IPS trong b\u1ea3o m\u1eadt<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Ngan-chan-Chu-dong-va-Tuc-thoi\" >Ng\u0103n ch\u1eb7n Ch\u1ee7 \u0111\u1ed9ng v\u00e0 T\u1ee9c th\u1eddi<\/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\/ips-la-gi\/#Bao-ve-khoi-cac-Lo-hong-da-biet-va-Tan-cong-Zero-day\" >B\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c L\u1ed7 h\u1ed5ng \u0111\u00e3 bi\u1ebft v\u00e0 T\u1ea5n c\u00f4ng Zero-day<\/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\/ips-la-gi\/#Dam-bao-Tuan-thu-Quy-dinh-Compliance\" >\u0110\u1ea3m b\u1ea3o Tu\u00e2n th\u1ee7 Quy \u0111\u1ecbnh (Compliance)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Tang-cuong-Hieu-qua-cua-Nhan-su-Bao-mat\" >T\u0103ng c\u01b0\u1eddng Hi\u1ec7u qu\u1ea3 c\u1ee7a Nh\u00e2n s\u1ef1 B\u1ea3o m\u1eadt<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#So-sanh-IPS-voi-IDS-va-cac-giai-phap-bao-mat-khac\" >So s\u00e1nh IPS v\u1edbi IDS v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt kh\u00e1c<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#IPS-so-sanh-voi-IDS-He-thong-Phat-hien-Xam-nhap\" >IPS so s\u00e1nh v\u1edbi IDS (H\u1ec7 th\u1ed1ng Ph\u00e1t hi\u1ec7n X\u00e2m nh\u1eadp)<\/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\/ips-la-gi\/#IPS-so-sanh-voi-Firewall-Tuong-lua\" >IPS so s\u00e1nh v\u1edbi Firewall (T\u01b0\u1eddng l\u1eeda)<\/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\/ips-la-gi\/#IPS-so-sanh-voi-UTM-Unified-Threat-Management\" >IPS so s\u00e1nh v\u1edbi UTM (Unified Threat Management)<\/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\/ips-la-gi\/#Tieu-chi-lua-chon-he-thong-IPS-phu-hop\" >Ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn h\u1ec7 th\u1ed1ng IPS ph\u00f9 h\u1ee3p<\/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\/ips-la-gi\/#Toc-do-xu-ly-Throughput-va-Do-tre-Latency\" >T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd (Throughput) v\u00e0 \u0110\u1ed9 tr\u1ec5 (Latency)<\/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\/ips-la-gi\/#Chat-luong-Co-so-Du-lieu-Chu-ky-Signature-Database\" >Ch\u1ea5t l\u01b0\u1ee3ng C\u01a1 s\u1edf D\u1eef li\u1ec7u Ch\u1eef k\u00fd (Signature Database)<\/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\/ips-la-gi\/#Kha-nang-Tuy-chinh-va-Giam-thieu-False-Positive\" >Kh\u1ea3 n\u0103ng T\u00f9y ch\u1ec9nh v\u00e0 Gi\u1ea3m thi\u1ec3u False Positive<\/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\/ips-la-gi\/#Kha-nang-tich-hop-va-Quan-ly-tap-trung\" >Kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p v\u00e0 Qu\u1ea3n l\u00fd t\u1eadp trung<\/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\/ips-la-gi\/#Ung-dung-thuc-te-cua-IPS-trong-doanh-nghiep\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a IPS trong doanh nghi\u1ec7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Nganh-Tai-chinh-va-Ngan-hang\" >Ng\u00e0nh T\u00e0i ch\u00ednh v\u00e0 Ng\u00e2n h\u00e0ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Nganh-E-commerce-va-Ban-le\" >Ng\u00e0nh E-commerce v\u00e0 B\u00e1n l\u1ebb<\/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\/ips-la-gi\/#Moi-truong-Chinh-phu-va-Co-so-Ha-tang-Quan-trong\" >M\u00f4i tr\u01b0\u1eddng Ch\u00ednh ph\u1ee7 v\u00e0 C\u01a1 s\u1edf H\u1ea1 t\u1ea7ng Quan tr\u1ecdng<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Nhung-luu-y-khi-trien-khai-va-su-dung-IPS\" >Nh\u1eefng l\u01b0u \u00fd khi tri\u1ec3n khai v\u00e0 s\u1eed d\u1ee5ng IPS<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/#Dat-IPS-o-che-do-Noi-tuyen-Inline-Deployment\" >\u0110\u1eb7t IPS \u1edf ch\u1ebf \u0111\u1ed9 N\u1ed9i tuy\u1ebfn (Inline Deployment)<\/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\/ips-la-gi\/#Quan-ly-va-Dieu-chinh-Ty-le-False-Positive\" >Qu\u1ea3n l\u00fd v\u00e0 \u0110i\u1ec1u ch\u1ec9nh T\u1ef7 l\u1ec7 False Positive<\/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\/ips-la-gi\/#Cap-nhat-Lien-tuc-va-Bao-tri-Dinh-ky\" >C\u1eadp nh\u1eadt Li\u00ean t\u1ee5c v\u00e0 B\u1ea3o tr\u00ec \u0110\u1ecbnh k\u1ef3<\/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\/ips-la-gi\/#Dao-tao-Doi-ngu-Van-hanh\" >\u0110\u00e0o t\u1ea1o \u0110\u1ed9i ng\u0169 V\u1eadn h\u00e0nh<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>IPS, vi\u1ebft t\u1eaft c\u1ee7a Intrusion Prevention System (H\u1ec7 th\u1ed1ng Ng\u0103n ch\u1eb7n X\u00e2m nh\u1eadp), l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng, ra \u0111\u1eddi \u0111\u1ec3 kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u1ec9 ph\u00e1t hi\u1ec7n c\u1ee7a IDS, gi\u00fap c\u1ea3nh b\u00e1o m\u00e0 v\u00e0 ng\u0103n ch\u1eb7n t\u1ee9c th\u1eddi c\u00e1c m\u1ed1i \u0111e d\u1ecda nh\u01b0 t\u1ea5n c\u00f4ng Zero-day v\u00e0 m\u00e3 \u0111\u1ed9c. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 <strong><a href=\"https:\/\/interdata.vn\/blog\/ips-la-gi\/\">IPS l\u00e0 g\u00ec<\/a><\/strong>, qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a IPS, c\u00e1c lo\u1ea1i IPS ph\u1ed5 bi\u1ebfn, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng d\u1ef1a, c\u00f9ng c\u00e1c ti\u00eau ch\u00ed quan tr\u1ecdng \u0111\u1ec3 ch\u1ecdn v\u00e0 tri\u1ec3n khai m\u1ed9t h\u1ec7 th\u1ed1ng IPS hi\u1ec7u qu\u1ea3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"IPS-la-gi\"><\/span>IPS l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>IPS<\/strong> l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Intrusion Prevention System (h\u1ec7 th\u1ed1ng ng\u0103n ch\u1eb7n x\u00e2m nh\u1eadp) trong l\u0129nh v\u1ef1c b\u1ea3o m\u1eadt m\u1ea1ng, v\u00e0 In-Plane Switching (c\u00f4ng ngh\u1ec7 m\u00e0n h\u00ecnh IPS) trong l\u0129nh v\u1ef1c hi\u1ec3n th\u1ecb \u0111i\u1ec7n t\u1eed.<\/p>\n<p>Trong b\u1ea3o m\u1eadt m\u1ea1ng, IPS l\u00e0 h\u1ec7 th\u1ed1ng gi\u00fap ph\u00e1t hi\u1ec7n, ng\u0103n ch\u1eb7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c h\u1ea1i, b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u v\u00e0 h\u1ea1 t\u1ea7ng c\u00f4ng ngh\u1ec7 kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng.<\/p>\n<p>Trong l\u0129nh v\u1ef1c m\u00e0n h\u00ecnh, IPS l\u00e0 c\u00f4ng ngh\u1ec7 t\u1ea5m n\u1ec1n LCD ti\u00ean ti\u1ebfn, n\u1ed5i b\u1eadt v\u1edbi kh\u1ea3 n\u0103ng t\u00e1i t\u1ea1o m\u00e0u s\u1eafc ch\u00ednh x\u00e1c, g\u00f3c nh\u00ecn r\u1ed9ng v\u00e0 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n t\u1ed1t, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn tr\u00ean c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h2><\/h2>\n<figure id=\"attachment_34081\" aria-describedby=\"caption-attachment-34081\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-34081\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-la-gi.jpg\" alt=\"IPS l\u00e0 g\u00ec\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-la-gi-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-34081\" class=\"wp-caption-text\">IPS l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Qua-trinh-hinh-thanh-va-phat-trien-cua-IPS\"><\/span>Qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a IPS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 IPS, ch\u00fang ta c\u1ea7n nh\u00ecn l\u1ea1i ng\u01b0\u1eddi ti\u1ec1n nhi\u1ec7m tr\u1ef1c ti\u1ebfp c\u1ee7a n\u00f3: H\u1ec7 th\u1ed1ng Ph\u00e1t hi\u1ec7n X\u00e2m nh\u1eadp (Intrusion Detection System &#8211; IDS). IDS ra \u0111\u1eddi nh\u01b0 m\u1ed9t ph\u1ea3n \u1ee9ng tr\u01b0\u1edbc s\u1ef1 thi\u1ebfu s\u00f3t c\u1ee7a T\u01b0\u1eddng l\u1eeda, v\u1ed1n ch\u1ec9 <strong>ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng<\/strong> d\u1ef1a tr\u00ean \u0111\u1ecba ch\u1ec9 IP v\u00e0 c\u1ed5ng m\u00e0 kh\u00f4ng ph\u00e2n t\u00edch n\u1ed9i dung g\u00f3i tin.<\/p>\n<p>IDS ch\u1ec9 c\u00f3 ch\u1ee9c n\u0103ng ph\u00e1t hi\u1ec7n v\u00e0 c\u1ea3nh b\u00e1o (Alert). Khi m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng x\u1ea3y ra, IDS ch\u1ec9 ghi l\u1ea1i nh\u1eadt k\u00fd (logs) v\u00e0 g\u1eedi th\u00f4ng b\u00e1o cho qu\u1ea3n tr\u1ecb vi\u00ean, nh\u01b0ng kh\u00f4ng th\u1ec3 can thi\u1ec7p \u0111\u1ec3 ng\u0103n ch\u1eb7n cu\u1ed9c t\u1ea5n c\u00f4ng \u0111ang di\u1ec5n ra.<\/p>\n<p>S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a IPS l\u00e0 b\u01b0\u1edbc ti\u1ebfn t\u1ef1 nhi\u00ean \u0111\u1ec3 kh\u1eafc ph\u1ee5c h\u1ea1n ch\u1ebf n\u00e0y. IDS ph\u00e1t tri\u1ec3n m\u1ea1nh t\u1eeb cu\u1ed1i th\u1eadp ni\u00ean 1990; IPS th\u01b0\u01a1ng m\u1ea1i h\u00f3a r\u1ed9ng r\u00e3i t\u1eeb \u0111\u1ea7u th\u1eadp ni\u00ean 2000 khi y\u00eau c\u1ea7u ng\u0103n ch\u1eb7n th\u1eddi-th\u1ef1c t\u0103ng cao.<\/p>\n<p>Ban \u0111\u1ea7u, c\u00e1c h\u1ec7 th\u1ed1ng IPS t\u1eadp trung v\u00e0o vi\u1ec7c <strong>ki\u1ec3m tra c\u00e1c l\u1ed7 h\u1ed5ng<\/strong> \u0111\u00e3 bi\u1ebft v\u00e0 c\u00e1c m\u1eabu t\u1ea5n c\u00f4ng \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh danh (Signature-based). Tuy nhi\u00ean, v\u1edbi s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng zero-day v\u00e0 m\u00e3 \u0111\u1ed9c bi\u1ebfn th\u1ec3, h\u1ec7 th\u1ed1ng IPS \u0111\u00e3 ph\u1ea3i ph\u00e1t tri\u1ec3n c\u00e1c c\u01a1 ch\u1ebf ph\u00e2n t\u00edch n\u00e2ng cao h\u01a1n nh\u01b0 ph\u00e2n t\u00edch b\u1ea5t th\u01b0\u1eddng (Anomaly-based) \u0111\u1ec3 duy tr\u00ec hi\u1ec7u qu\u1ea3 b\u1ea3o v\u1ec7.<\/p>\n<p>Ng\u00e0y nay, h\u1ec7 th\u1ed1ng IPS \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt th\u1ebf h\u1ec7 m\u1edbi (NGFW &#8211; Next-Generation Firewall) ho\u1eb7c \u0111\u01b0\u1ee3c tri\u1ec3n khai d\u01b0\u1edbi d\u1ea1ng <strong>m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ed9c l\u1eadp<\/strong> chuy\u00ean d\u1ee5ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-loai-IPS-pho-bien-hien-nay\"><\/span>C\u00e1c lo\u1ea1i IPS ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn ki\u1ebfn tr\u00fac tri\u1ec3n khai h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> ph\u1ee5 thu\u1ed9c v\u00e0o quy m\u00f4, ki\u1ebfn tr\u00fac m\u1ea1ng v\u00e0 nhu c\u1ea7u b\u1ea3o m\u1eadt c\u1ee5 th\u1ec3 c\u1ee7a doanh nghi\u1ec7p. C\u00f3 ba lo\u1ea1i <strong>IPS<\/strong> ch\u00ednh m\u00e0 InterData th\u01b0\u1eddng xuy\u00ean t\u01b0 v\u1ea5n v\u00e0 tri\u1ec3n khai:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"NIPS-Network-based-Intrusion-Prevention-System\"><\/span>NIPS (Network-based Intrusion Prevention System)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>NIPS<\/strong> l\u00e0 lo\u1ea1i <strong>IPS<\/strong> ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i c\u00e1c \u0111i\u1ec3m chi\u1ebfn l\u01b0\u1ee3c trong m\u1ea1ng (th\u01b0\u1eddng l\u00e0 ngay sau Firewall ho\u1eb7c t\u1ea1i c\u00e1c c\u1ed5ng truy c\u1eadp Internet ch\u00ednh). <strong>NIPS<\/strong> gi\u00e1m s\u00e1t t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng \u0111i qua m\u1ea1ng v\u00e0 \u0111\u01b0a ra c\u00e1c h\u00e0nh \u0111\u1ed9ng ng\u0103n ch\u1eb7n.<\/p>\n<p><strong>NIPS<\/strong> ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u00e1c g\u00f3i d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c (real-time) \u0111\u1ec3 t\u00ecm ki\u1ebfm c\u00e1c d\u1ea5u hi\u1ec7u t\u1ea5n c\u00f4ng nh\u01b0 qu\u00e9t c\u1ed5ng (port scanning), tr\u00e0n b\u1ed9 \u0111\u1ec7m (buffer overflows) ho\u1eb7c c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c h\u1ea1i kh\u00e1c.<\/p>\n<p>L\u1ee3i \u00edch l\u1edbn nh\u1ea5t c\u1ee7a <strong>NIPS<\/strong> l\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 to\u00e0n b\u1ed9 m\u1ea1ng ch\u1ec9 v\u1edbi m\u1ed9t \u0111i\u1ec3m ki\u1ec3m so\u00e1t duy nh\u1ea5t. Tuy nhi\u00ean, n\u1ebfu l\u01b0\u1ee3ng l\u01b0u l\u01b0\u1ee3ng qu\u00e1 l\u1edbn (v\u00ed d\u1ee5, m\u1ed9t c\u00f4ng ty c\u00f3 t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n 10 Gbps), <strong>NIPS<\/strong> c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh n\u00fat th\u1eaft c\u1ed5 chai, l\u00e0m ch\u1eadm hi\u1ec7u su\u1ea5t m\u1ea1ng n\u1ebfu thi\u1ebft b\u1ecb kh\u00f4ng \u0111\u1ee7 m\u1ea1nh (ch\u00fa tr\u1ecdng ti\u00eau ch\u00ed <strong>Throughput<\/strong> khi ch\u1ecdn mua <strong>IPS<\/strong>).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"HIPS-Host-based-Intrusion-Prevention-System\"><\/span>HIPS (Host-based Intrusion Prevention System)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>HIPS<\/strong> \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t d\u01b0\u1edbi d\u1ea1ng ph\u1ea7n m\u1ec1m tr\u00ean t\u1eebng m\u00e1y ch\u1ee7 (Server), m\u00e1y tr\u1ea1m (Workstation) ho\u1eb7c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i c\u1ee5 th\u1ec3. <strong>HIPS<\/strong> t\u1eadp trung v\u00e0o vi\u1ec7c gi\u00e1m s\u00e1t c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u1ed9i b\u1ed9 c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u00f3.<\/p>\n<p>H\u1ec7 th\u1ed1ng <strong>HIPS<\/strong> <strong>ki\u1ec3m tra c\u00e1c s\u1ef1 ki\u1ec7n<\/strong> c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh, nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng, c\u00e1c thay \u0111\u1ed5i \u0111\u1ed1i v\u1edbi t\u1ec7p quan tr\u1ecdng v\u00e0 c\u00e1c n\u1ed7 l\u1ef1c truy c\u1eadp v\u00e0o registry. M\u1ee5c \u0111\u00edch ch\u00ednh l\u00e0 <strong>ng\u0103n ch\u1eb7n c\u00e1c h\u00e0nh vi \u0111\u1ed9c h\u1ea1i<\/strong> \u0111\u00e3 v\u01b0\u1ee3t qua l\u1edbp b\u1ea3o v\u1ec7 m\u1ea1ng b\u00ean ngo\u00e0i (v\u00ed d\u1ee5, m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u01b0\u1ee3c kh\u1edfi ch\u1ea1y b\u1edfi m\u1ed9t nh\u00e2n vi\u00ean n\u1ed9i b\u1ed9).<\/p>\n<p><strong>HIPS<\/strong> c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng c\u1ee5 th\u1ec3 nh\u1eb1m v\u00e0o \u1ee9ng d\u1ee5ng v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh, v\u1ed1n l\u00e0 \u0111i\u1ec3m m\u00f9 c\u1ee7a <strong>NIPS<\/strong>. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t ti\u1ebfn tr\u00ecnh c\u1ed1 g\u1eafng s\u1eeda \u0111\u1ed5i t\u1ec7p h\u1ec7 th\u1ed1ng quan tr\u1ecdng, <strong>HIPS<\/strong> s\u1ebd ch\u1eb7n h\u00e0nh \u0111\u1ed9ng n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"WIPS-Wireless-Intrusion-Prevention-System\"><\/span>WIPS (Wireless Intrusion Prevention System)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>WIPS<\/strong> l\u00e0 lo\u1ea1i <strong>IPS<\/strong> chuy\u00ean bi\u1ec7t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c m\u1ea1ng kh\u00f4ng d\u00e2y (Wi-Fi). H\u1ec7 th\u1ed1ng <strong>WIPS<\/strong> gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng v\u00f4 tuy\u1ebfn \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c m\u1ed1i \u0111e d\u1ecda nh\u1eafm v\u00e0o Wi-Fi.<\/p>\n<p>C\u00e1c m\u1ed1i \u0111e d\u1ecda ph\u1ed5 bi\u1ebfn m\u00e0 <strong>WIPS<\/strong> x\u1eed l\u00fd bao g\u1ed3m: \u0111i\u1ec3m truy c\u1eadp gi\u1ea3 m\u1ea1o (Rogue Access Points), t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (Wireless Denial-of-Service &#8211; WDoS) v\u00e0 c\u00e1c n\u1ed7 l\u1ef1c nghe l\u00e9n d\u1eef li\u1ec7u qua s\u00f3ng v\u00f4 tuy\u1ebfn.<\/p>\n<p>Tri\u1ec3n khai <strong>WIPS<\/strong> l\u00e0 c\u1ea7n thi\u1ebft trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p c\u00f3 nhi\u1ec1u nh\u00e2n vi\u00ean s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb di \u0111\u1ed9ng c\u00e1 nh\u00e2n (BYOD &#8211; Bring Your Own Device), \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y kh\u00f4ng tr\u1edf th\u00e0nh \u0111i\u1ec3m y\u1ebfu x\u00e2m nh\u1eadp m\u1ea1ng.<\/p>\n<figure id=\"attachment_34082\" aria-describedby=\"caption-attachment-34082\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-34082\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Cac-loai-IPS-pho-bien.jpg\" alt=\"C\u00e1c lo\u1ea1i IPS ph\u1ed5 bi\u1ebfn\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Cac-loai-IPS-pho-bien.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Cac-loai-IPS-pho-bien-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Cac-loai-IPS-pho-bien-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-34082\" class=\"wp-caption-text\">C\u00e1c lo\u1ea1i IPS ph\u1ed5 bi\u1ebfn<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Nguyen-ly-hoat-dong-cua-he-thong-IPS\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng IPS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec3u <strong>nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a IPS<\/strong> l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3. H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p nhi\u1ec1u k\u1ef9 thu\u1eadt \u0111\u1ec3 ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh ng\u0103n ch\u1eb7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phat-hien-dua-tren-Chu-ky-Signature-based-Detection\"><\/span>Ph\u00e1t hi\u1ec7n d\u1ef1a tr\u00ean Ch\u1eef k\u00fd (Signature-based Detection)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u01a1 b\u1ea3n nh\u1ea5t. H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> duy tr\u00ec m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 ch\u1ee9a c\u00e1c &#8220;ch\u1eef k\u00fd&#8221; (signatures) c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng v\u00e0 m\u00e3 \u0111\u1ed9c \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn. Ch\u1eef k\u00fd l\u00e0 m\u1ed9t chu\u1ed7i byte ho\u1eb7c m\u1eabu ho\u1ea1t \u0111\u1ed9ng \u0111\u1eb7c tr\u01b0ng c\u1ee7a m\u1ed9t m\u1ed1i \u0111e d\u1ecda c\u1ee5 th\u1ec3.<\/p>\n<p>Khi m\u1ed9t g\u00f3i tin \u0111i qua, <strong>IPS<\/strong> s\u1ebd so s\u00e1nh n\u1ed9i dung c\u1ee7a g\u00f3i tin \u0111\u00f3 v\u1edbi c\u00e1c ch\u1eef k\u00fd trong c\u01a1 s\u1edf d\u1eef li\u1ec7u. N\u1ebfu c\u00f3 s\u1ef1 tr\u00f9ng kh\u1edbp, <strong>IPS<\/strong> ngay l\u1eadp t\u1ee9c x\u00e1c \u0111\u1ecbnh \u0111\u00e2y l\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng v\u00e0 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng ng\u0103n ch\u1eb7n.<\/p>\n<p>H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> ph\u1ea3i \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt ch\u1eef k\u00fd th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c bi\u1ebfn th\u1ec3 m\u00e3 \u0111\u1ed9c m\u1edbi. Theo b\u00e1o c\u00e1o an ninh m\u1ea1ng c\u1ee7a Symantec (2023), t\u1ed1c \u0111\u1ed9 t\u1ea1o ra m\u00e3 \u0111\u1ed9c m\u1edbi \u0111\u1ea1t m\u1ee9c g\u1ea7n 400.000 m\u1eabu m\u1ed7i ng\u00e0y, cho th\u1ea5y t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c c\u1eadp nh\u1eadt ch\u1eef k\u00fd k\u1ecbp th\u1eddi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phat-hien-dua-tren-Su-bat-thuong-Anomaly-based-Detection\"><\/span>Ph\u00e1t hi\u1ec7n d\u1ef1a tr\u00ean S\u1ef1 b\u1ea5t th\u01b0\u1eddng (Anomaly-based Detection)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ti\u00ean ti\u1ebfn h\u01a1n, t\u1eadp trung v\u00e0o vi\u1ec7c ph\u00e1t hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng <strong>Zero-day<\/strong>.<\/p>\n<p>H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> \u0111\u1ea7u ti\u00ean x\u00e2y d\u1ef1ng m\u1ed9t h\u1ed3 s\u01a1 &#8220;b\u00ecnh th\u01b0\u1eddng&#8221; c\u1ee7a l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng (Baseline) b\u1eb1ng c\u00e1ch h\u1ecdc h\u1ecfi h\u00e0nh vi m\u1ea1ng trong m\u1ed9t th\u1eddi gian d\u00e0i (v\u00ed d\u1ee5: gi\u1edd l\u00e0m vi\u1ec7c, lo\u1ea1i giao th\u1ee9c, k\u00edch th\u01b0\u1edbc g\u00f3i tin trung b\u00ecnh).<\/p>\n<p>Sau \u0111\u00f3, <strong>IPS<\/strong> li\u00ean t\u1ee5c theo d\u00f5i l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng v\u00e0 so s\u00e1nh v\u1edbi h\u1ed3 s\u01a1 Baseline \u0111\u00f3. B\u1ea5t k\u1ef3 ho\u1ea1t \u0111\u1ed9ng n\u00e0o l\u1ec7ch kh\u1ecfi h\u00e0nh vi &#8220;b\u00ecnh th\u01b0\u1eddng&#8221; m\u1ed9t c\u00e1ch \u0111\u00e1ng k\u1ec3 s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn c\u1edd l\u00e0 m\u1ed9t s\u1ef1 b\u1ea5t th\u01b0\u1eddng ti\u1ec1m \u1ea9n v\u00e0 c\u00f3 th\u1ec3 b\u1ecb ch\u1eb7n.<\/p>\n<p>\u01afu \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ed1i \u0111e d\u1ecda m\u1edbi. Nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u00ednh l\u00e0 nguy c\u01a1 t\u1ea1o ra nhi\u1ec1u <strong>False Positive<\/strong> (b\u00e1o \u0111\u1ed9ng sai) n\u1ebfu h\u1ed3 s\u01a1 Baseline kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp ch\u00ednh x\u00e1c ho\u1eb7c khi m\u1ea1ng c\u00f3 s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t (v\u00ed d\u1ee5: tri\u1ec3n khai m\u1ed9t \u1ee9ng d\u1ee5ng m\u1edbi).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phan-tich-Giao-thuc-Trang-thai-Stateful-Protocol-Analysis\"><\/span>Ph\u00e2n t\u00edch Giao th\u1ee9c Tr\u1ea1ng th\u00e1i (Stateful Protocol Analysis)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c g\u00f3i tin truy\u1ec1n qua m\u1ea1ng tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a giao th\u1ee9c m\u1ea1ng (v\u00ed d\u1ee5: TCP, HTTP, FTP) \u1edf l\u1edbp \u1ee9ng d\u1ee5ng.<\/p>\n<p><strong>IPS<\/strong> s\u1ebd<strong> duy tr\u00ec m\u1ed9t b\u1ed9 nh\u1edb v\u1ec1 tr\u1ea1ng th\u00e1i phi\u00ean k\u1ebft n\u1ed1i<\/strong>. N\u1ebfu m\u1ed9t g\u00f3i tin c\u1ed1 g\u1eafng th\u1ef1c hi\u1ec7n m\u1ed9t h\u00e0nh \u0111\u1ed9ng kh\u00f4ng h\u1ee3p l\u1ec7 theo quy t\u1eafc giao th\u1ee9c (v\u00ed d\u1ee5: c\u1ed1 g\u1eafng \u0111\u00f3ng m\u1ed9t phi\u00ean ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c m\u1edf, ho\u1eb7c g\u1eedi qu\u00e1 nhi\u1ec1u l\u1ec7nh kh\u00f4ng \u0111\u00fang c\u1ea5u tr\u00fac), <strong>IPS<\/strong> s\u1ebd nh\u1eadn di\u1ec7n \u0111\u00f3 l\u00e0 h\u00e0nh vi b\u1ea5t th\u01b0\u1eddng ho\u1eb7c t\u1ea5n c\u00f4ng (v\u00ed d\u1ee5: <strong>SQL Injection<\/strong>, <strong>Buffer Overflow<\/strong>).<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u1eafm v\u00e0o l\u1ed7 h\u1ed5ng \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phat-hien-dua-tren-Heuristic-Heuristic-based-Detection\"><\/span>Ph\u00e1t hi\u1ec7n d\u1ef1a tr\u00ean Heuristic (Heuristic-based Detection)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u01b0\u01a1ng ph\u00e1p Heuristic s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc suy lu\u1eadn v\u00e0 thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u00fd \u0111\u1ecbnh c\u1ee7a l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng. Thay v\u00ec ch\u1ec9 t\u00ecm ki\u1ebfm m\u1ed9t ch\u1eef k\u00fd kh\u1edbp, <strong>IPS<\/strong> s\u1ebd g\u00e1n \u0111i\u1ec3m r\u1ee7i ro cho c\u00e1c h\u00e0nh vi kh\u00e1c nhau.<\/p>\n<p>V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u1ed1 g\u1eafng \u0111\u0103ng nh\u1eadp th\u1ea5t b\u1ea1i 10 l\u1ea7n trong 1 ph\u00fat (h\u00e0nh vi A), sau \u0111\u00f3 c\u1ed1 g\u1eafng truy c\u1eadp m\u1ed9t t\u1ec7p nh\u1ea1y c\u1ea3m (h\u00e0nh vi B), h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> s\u1ebd k\u1ebft h\u1ee3p hai h\u00e0nh vi n\u00e0y, t\u1ed5ng h\u1ee3p \u0111i\u1ec3m r\u1ee7i ro v\u00e0 x\u00e1c \u0111\u1ecbnh \u0111\u00e2y l\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng brute-force ho\u1eb7c leo thang \u0111\u1eb7c quy\u1ec1n, ngay c\u1ea3 khi kh\u00f4ng c\u00f3 ch\u1eef k\u00fd c\u1ee5 th\u1ec3 n\u00e0o \u0111\u01b0\u1ee3c kh\u1edbp.<\/p>\n<figure id=\"attachment_34083\" aria-describedby=\"caption-attachment-34083\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-34083\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-ly-hoat-dong-cua-IPS.jpg\" alt=\"Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a IPS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-ly-hoat-dong-cua-IPS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-ly-hoat-dong-cua-IPS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Nguyen-ly-hoat-dong-cua-IPS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-34083\" class=\"wp-caption-text\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a IPS<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Vai-tro-va-loi-ich-cua-IPS-trong-bao-mat\"><\/span>Vai tr\u00f2 v\u00e0 l\u1ee3i \u00edch c\u1ee7a IPS trong b\u1ea3o m\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Vai tr\u00f2 c\u1ee7a IPS<\/strong> kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf vi\u1ec7c ph\u00e1t hi\u1ec7n m\u00e0 l\u00e0 <strong>ng\u0103n ch\u1eb7n<\/strong> m\u1ecdi m\u1ed1i \u0111e d\u1ecda x\u00e2m nh\u1eadp. Vi\u1ec7c tri\u1ec3n khai h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch chi\u1ebfn l\u01b0\u1ee3c cho c\u00f4ng t\u00e1c an ninh m\u1ea1ng\u00a0 v\u00e0 kh\u00e1ch h\u00e0ng:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ngan-chan-Chu-dong-va-Tuc-thoi\"><\/span>Ng\u0103n ch\u1eb7n Ch\u1ee7 \u0111\u1ed9ng v\u00e0 T\u1ee9c th\u1eddi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L\u1ee3i \u00edch c\u1ed1t l\u00f5i c\u1ee7a <strong>IPS<\/strong> l\u00e0 kh\u1ea3 n\u0103ng h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c. Trong khi <strong>IDS<\/strong> ch\u1ec9 l\u00e0 nh\u00e2n vi\u00ean g\u00e1c c\u1ed5ng, <strong>IPS<\/strong> l\u00e0 nh\u00e2n vi\u00ean an ninh c\u00f3 v\u0169 trang. Khi m\u1ed9t m\u1ed1i \u0111e d\u1ecda \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t trong c\u00e1c h\u00e0nh \u0111\u1ed9ng sau trong mili gi\u00e2y:<\/p>\n<ul>\n<li><strong>Ch\u1eb7n g\u00f3i tin (Drop the Packet):<\/strong> Ng\u0103n kh\u00f4ng cho g\u00f3i d\u1eef li\u1ec7u \u0111\u1ed9c h\u1ea1i ti\u1ebfp t\u1ee5c \u0111i v\u00e0o m\u1ea1ng.<\/li>\n<li><strong>Ng\u1eaft k\u1ebft n\u1ed1i (Terminate Session):<\/strong> Ch\u1ea5m d\u1ee9t phi\u00ean k\u1ebft n\u1ed1i gi\u1eefa k\u1ebb t\u1ea5n c\u00f4ng v\u00e0 n\u1ea1n nh\u00e2n.<\/li>\n<li><strong>Ch\u1eb7n \u0111\u1ecba ch\u1ec9 IP ngu\u1ed3n (Block Source IP):<\/strong> Th\u00eam \u0111\u1ecba ch\u1ec9 IP c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng v\u00e0o danh s\u00e1ch \u0111en (Blacklist) c\u1ee7a Firewall ho\u1eb7c ch\u00ednh <strong>IPS<\/strong>.<\/li>\n<li><strong>C\u1ea3nh b\u00e1o v\u00e0 Ghi nh\u1eadt k\u00fd (Alert and Log):<\/strong> G\u1eedi c\u1ea3nh b\u00e1o \u0111\u1ebfn qu\u1ea3n tr\u1ecb vi\u00ean v\u00e0 ghi l\u1ea1i chi ti\u1ebft s\u1ef1 ki\u1ec7n \u0111\u1ec3 ph\u00e2n t\u00edch ph\u00e1p l\u00fd sau n\u00e0y.<\/li>\n<\/ul>\n<p>S\u1ef1 ng\u0103n ch\u1eb7n k\u1ecbp th\u1eddi n\u00e0y l\u00e0 t\u1ed1i quan tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1ed1c \u0111\u1ed9 cao nh\u01b0 <strong>DDoS<\/strong> (Distributed Denial of Service) ho\u1eb7c <strong>Worm<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bao-ve-khoi-cac-Lo-hong-da-biet-va-Tan-cong-Zero-day\"><\/span>B\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c L\u1ed7 h\u1ed5ng \u0111\u00e3 bi\u1ebft v\u00e0 T\u1ea5n c\u00f4ng Zero-day<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh t\u1ed1t s\u1ebd b\u1ea3o v\u1ec7 m\u1ea1ng kh\u1ecfi:<\/p>\n<ul>\n<li><strong>T\u1ea5n c\u00f4ng khai th\u00e1c l\u1ed7 h\u1ed5ng (Exploits):<\/strong> <strong>IPS<\/strong> \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c l\u1ed7 h\u1ed5ng m\u1edbi c\u00f4ng b\u1ed1 (v\u00ed d\u1ee5: c\u00e1c l\u1ed7 h\u1ed5ng trong Apache, Microsoft Exchange).<\/li>\n<li><strong>T\u1ea5n c\u00f4ng SQL Injection v\u00e0 XSS:<\/strong> Th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p Ph\u00e2n t\u00edch Giao th\u1ee9c Tr\u1ea1ng th\u00e1i, <strong>IPS<\/strong> c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c c\u00fa ph\u00e1p \u0111\u1ed9c h\u1ea1i \u0111\u01b0\u1ee3c nh\u00fang trong truy v\u1ea5n HTTP.<\/li>\n<li><strong>T\u1ea5n c\u00f4ng Zero-day:<\/strong> Nh\u1edd c\u01a1 ch\u1ebf Anomaly-based, <strong>IPS<\/strong> c\u00f3 kh\u1ea3 n\u0103ng x\u00e1c \u0111\u1ecbnh c\u00e1c ho\u1ea1t \u0111\u1ed9ng m\u1ea1ng b\u1ea5t th\u01b0\u1eddng, ngay c\u1ea3 khi ch\u01b0a c\u00f3 ch\u1eef k\u00fd t\u1ea5n c\u00f4ng c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Dam-bao-Tuan-thu-Quy-dinh-Compliance\"><\/span>\u0110\u1ea3m b\u1ea3o Tu\u00e2n th\u1ee7 Quy \u0111\u1ecbnh (Compliance)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nhi\u1ec1u ti\u00eau chu\u1ea9n v\u00e0 quy \u0111\u1ecbnh v\u1ec1 an ninh m\u1ea1ng qu\u1ed1c t\u1ebf (v\u00ed d\u1ee5: <strong>PCI DSS<\/strong> cho ng\u00e0nh thanh to\u00e1n, <strong>HIPAA<\/strong> cho ng\u00e0nh y t\u1ebf) y\u00eau c\u1ea7u c\u00e1c t\u1ed5 ch\u1ee9c ph\u1ea3i c\u00f3 bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c truy c\u1eadp tr\u00e1i ph\u00e9p.<\/p>\n<p>Tri\u1ec3n khai <strong>IPS<\/strong> kh\u00f4ng ch\u1ec9 gi\u00fap t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt m\u00e0 c\u00f2n l\u00e0 b\u1eb1ng ch\u1ee9ng c\u1ee5 th\u1ec3 v\u1ec1 vi\u1ec7c doanh nghi\u1ec7p tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u n\u00e0y. Vi\u1ec7c ghi nh\u1eadt k\u00fd chi ti\u1ebft c\u1ee7a <strong>IPS<\/strong> cung c\u1ea5p d\u1eef li\u1ec7u ki\u1ec3m to\u00e1n quan tr\u1ecdng khi \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tang-cuong-Hieu-qua-cua-Nhan-su-Bao-mat\"><\/span>T\u0103ng c\u01b0\u1eddng Hi\u1ec7u qu\u1ea3 c\u1ee7a Nh\u00e2n s\u1ef1 B\u1ea3o m\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng h\u00f3a qu\u00e1 tr\u00ecnh ng\u0103n ch\u1eb7n c\u00e1c m\u1ed1i \u0111e d\u1ecda \u0111\u00e3 bi\u1ebft, h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> gi\u00fap gi\u1ea3m t\u1ea3i c\u00f4ng vi\u1ec7c cho \u0111\u1ed9i ng\u0169 an ninh m\u1ea1ng. Thay v\u00ec ph\u1ea3i ph\u1ea3n \u1ee9ng v\u1edbi m\u1ecdi c\u1ea3nh b\u00e1o <strong>IDS<\/strong>, \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 t\u1eadp trung ngu\u1ed3n l\u1ef1c v\u00e0o vi\u1ec7c \u0111i\u1ec1u tra c\u00e1c m\u1ed1i \u0111e d\u1ecda ph\u1ee9c t\u1ea1p ho\u1eb7c n\u00e2ng cao ki\u1ebfn tr\u00fac ph\u00f2ng th\u1ee7 m\u1ea1ng. <strong>IPS<\/strong> gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ph\u00f2ng th\u1ee7 m\u1ea1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-IPS-voi-IDS-va-cac-giai-phap-bao-mat-khac\"><\/span>So s\u00e1nh IPS v\u1edbi IDS v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt kh\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c <strong>so s\u00e1nh IPS v\u00e0 IDS<\/strong> l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt nhi\u1ec1u l\u1edbp (Defense-in-Depth) ho\u00e0n ch\u1ec9nh. IPS v\u00e0 IDS kh\u00f4ng lo\u1ea1i tr\u1eeb nhau, m\u00e0 ch\u00fang ho\u1ea1t \u0111\u1ed9ng b\u1ed5 sung cho nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"IPS-so-sanh-voi-IDS-He-thong-Phat-hien-Xam-nhap\"><\/span>IPS so s\u00e1nh v\u1edbi IDS (H\u1ec7 th\u1ed1ng Ph\u00e1t hi\u1ec7n X\u00e2m nh\u1eadp)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t trong c\u00e1ch th\u1ee9c ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n t\u1ea5n c\u00f4ng m\u1ea1ng, ta c\u00f9ng so s\u00e1nh h\u1ec7 th\u1ed1ng IDS v\u00e0 IPS.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; font-family: Arial, sans-serif; font-size: 14px; border: 1px solid #050a71;\" border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #050a71; color: #fff;\">\n<th style=\"border: 1px solid #050a71;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"border: 1px solid #050a71;\">H\u1ec7 th\u1ed1ng Ph\u00e1t hi\u1ec7n X\u00e2m nh\u1eadp (IDS)<\/th>\n<th style=\"border: 1px solid #050a71;\">H\u1ec7 th\u1ed1ng Ng\u0103n ch\u1eb7n X\u00e2m nh\u1eadp (IPS)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #050a71;\">Ch\u1ee9c n\u0103ng ch\u00ednh<\/td>\n<td style=\"border: 1px solid #050a71;\">Ph\u00e1t hi\u1ec7n v\u00e0 <b>C\u1ea3nh b\u00e1o<\/b> (Passive \u2013 B\u1ecb \u0111\u1ed9ng).<\/td>\n<td style=\"border: 1px solid #050a71;\">Ph\u00e1t hi\u1ec7n, <b>Ng\u0103n ch\u1eb7n<\/b> v\u00e0 <b>Ch\u1eb7n<\/b> (Active \u2013 Ch\u1ee7 \u0111\u1ed9ng).<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #050a71;\">V\u1ecb tr\u00ed trong m\u1ea1ng<\/td>\n<td style=\"border: 1px solid #050a71;\">Th\u01b0\u1eddng l\u00e0 thi\u1ebft b\u1ecb l\u1eafng nghe (Promiscuous mode), \u0111\u1eb7t ngo\u00e0i lu\u1ed3ng d\u1eef li\u1ec7u ch\u00ednh.<\/td>\n<td style=\"border: 1px solid #050a71;\">B\u1eaft bu\u1ed9c ph\u1ea3i \u0111\u1eb7t n\u1ed9i tuy\u1ebfn (Inline mode), tr\u1ef1c ti\u1ebfp tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n d\u1eef li\u1ec7u.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #050a71;\">H\u00e0nh \u0111\u1ed9ng<\/td>\n<td style=\"border: 1px solid #050a71;\">G\u1eedi th\u00f4ng b\u00e1o qua email, SMS, ho\u1eb7c ghi log.<\/td>\n<td style=\"border: 1px solid #050a71;\">Ng\u1eaft k\u1ebft n\u1ed1i, ch\u1eb7n g\u00f3i tin, ch\u1eb7n \u0111\u1ecba ch\u1ec9 IP ngu\u1ed3n.<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #050a71;\">M\u1ee5c \u0111\u00edch<\/td>\n<td style=\"border: 1px solid #050a71;\">Ph\u00e2n t\u00edch \u0111i\u1ec1u tra, ki\u1ec3m to\u00e1n (Auditing), ghi nh\u1eadn s\u1ef1 ki\u1ec7n.<\/td>\n<td style=\"border: 1px solid #050a71;\">B\u1ea3o v\u1ec7 th\u1eddi gian th\u1ef1c (<b>Real-time protection<\/b>), ng\u0103n ch\u1eb7n thi\u1ec7t h\u1ea1i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>IDS l\u00fd t\u01b0\u1edfng cho vi\u1ec7c gi\u00e1m s\u00e1t th\u1ee5 \u0111\u1ed9ng v\u00e0 ph\u00e2n t\u00edch s\u00e2u, trong khi <strong>IPS<\/strong> c\u1ea7n thi\u1ebft cho vi\u1ec7c ph\u00f2ng th\u1ee7 ti\u1ec1n tuy\u1ebfn, ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111ang di\u1ec5n ra. Nhi\u1ec1u gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt hi\u1ec7n \u0111\u1ea1i t\u00edch h\u1ee3p c\u1ea3 hai ch\u1ee9c n\u0103ng n\u00e0y trong m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"IPS-so-sanh-voi-Firewall-Tuong-lua\"><\/span>IPS so s\u00e1nh v\u1edbi Firewall (T\u01b0\u1eddng l\u1eeda)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u01b0\u1eddng l\u1eeda (Firewall) l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt \u0111\u1ea7u ti\u00ean, ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp 3 v\u00e0 4 c\u1ee7a m\u00f4 h\u00ecnh OSI (IP v\u00e0 C\u1ed5ng). Firewall quy\u1ebft \u0111\u1ecbnh cho ph\u00e9p hay t\u1eeb ch\u1ed1i l\u01b0u l\u01b0\u1ee3ng d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc \u0111\u00e3 \u0111\u1ecbnh s\u1eb5n (v\u00ed d\u1ee5: ch\u1eb7n c\u1ed5ng 80 t\u1eeb b\u00ean ngo\u00e0i).<\/p>\n<p><strong>IPS<\/strong> ho\u1ea1t \u0111\u1ed9ng \u1edf c\u00e1c l\u1edbp cao h\u01a1n, ch\u1ee7 y\u1ebfu l\u00e0 L\u1edbp 5, 6, 7 (Phi\u00ean, Tr\u00ecnh b\u00e0y, \u1ee8ng d\u1ee5ng). <strong>IPS<\/strong> ki\u1ec3m tra <strong>n\u1ed9i dung<\/strong> b\u00ean trong g\u00f3i tin.<\/p>\n<ul>\n<li><strong>T\u01b0\u1eddng l\u1eeda:<\/strong> Tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi &#8220;Ai c\u00f3 th\u1ec3 v\u00e0o?&#8221;.<\/li>\n<li><strong>IPS:<\/strong> Tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi &#8220;Nh\u1eefng g\u00ec h\u1ecd mang v\u00e0o c\u00f3 nguy hi\u1ec3m kh\u00f4ng?&#8221;.<\/li>\n<\/ul>\n<p>T\u01b0\u1eddng l\u1eeda v\u1eabn c\u1ea7n thi\u1ebft, nh\u01b0ng <strong>IPS<\/strong> l\u00e0 l\u1edbp b\u1ea3o v\u1ec7 c\u1ea7n c\u00f3 \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ed1i \u0111e d\u1ecda \u1ee9ng d\u1ee5ng. <strong>IPS<\/strong> b\u1ed5 sung cho T\u01b0\u1eddng l\u1eeda b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u1ea9n m\u00ecnh trong l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ph\u00e9p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"IPS-so-sanh-voi-UTM-Unified-Threat-Management\"><\/span>IPS so s\u00e1nh v\u1edbi UTM (Unified Threat Management)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>UTM l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o m\u1eadt \u0111a n\u0103ng t\u00edch h\u1ee3p nhi\u1ec1u ch\u1ee9c n\u0103ng an ninh m\u1ea1ng v\u00e0o m\u1ed9t n\u1ec1n t\u1ea3ng duy nh\u1ea5t, bao g\u1ed3m Firewall, VPN, Anti-virus Gateway, v\u00e0 th\u01b0\u1eddng c\u00f3 c\u1ea3 ch\u1ee9c n\u0103ng <strong>IPS<\/strong>.<\/p>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t gi\u1ea3i ph\u00e1p UTM (c\u00f3 t\u00edch h\u1ee3p <strong>IPS<\/strong>) \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd. Tuy nhi\u00ean, n\u1ebfu doanh nghi\u1ec7p c\u00f3 nhu c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd m\u1ea1ng r\u1ea5t cao (10 Gbps tr\u1edf l\u00ean), vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t thi\u1ebft b\u1ecb <strong>IPS<\/strong> chuy\u00ean d\u1ee5ng \u0111\u1ed9c l\u1eadp (Dedicated <strong>IPS<\/strong>) s\u1ebd mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro t\u1eafc ngh\u1ebdn.<\/p>\n<figure id=\"attachment_34084\" aria-describedby=\"caption-attachment-34084\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-34084\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-voi-IDS-va-cac-giai-phap-khac.jpg\" alt=\"IPS v\u1edbi IDS v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p kh\u00e1c\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-voi-IDS-va-cac-giai-phap-khac.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-voi-IDS-va-cac-giai-phap-khac-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/IPS-voi-IDS-va-cac-giai-phap-khac-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-34084\" class=\"wp-caption-text\">IPS v\u1edbi IDS v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p kh\u00e1c<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Tieu-chi-lua-chon-he-thong-IPS-phu-hop\"><\/span>Ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn h\u1ec7 th\u1ed1ng IPS ph\u00f9 h\u1ee3p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ef1a ch\u1ecdn m\u1ed9t h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n. D\u1ef1a tr\u00ean kinh nghi\u1ec7m c\u1ee7a InterData, b\u1ea1n c\u1ea7n c\u00e2n nh\u1eafc c\u00e1c <strong>ti\u00eau ch\u00ed ch\u1ecdn IPS<\/strong> sau:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toc-do-xu-ly-Throughput-va-Do-tre-Latency\"><\/span>T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd (Throughput) v\u00e0 \u0110\u1ed9 tr\u1ec5 (Latency)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 ti\u00eau ch\u00ed quan tr\u1ecdng nh\u1ea5t khi ch\u1ecdn <strong>IPS<\/strong>. V\u00ec <strong>IPS<\/strong> ho\u1ea1t \u0111\u1ed9ng n\u1ed9i tuy\u1ebfn, n\u00f3 ph\u1ea3i x\u1eed l\u00fd to\u00e0n b\u1ed9 l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng.<\/p>\n<ul>\n<li><strong>Throughput:<\/strong> \u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng x\u1eed l\u00fd c\u1ee7a <strong>IPS<\/strong> ph\u1ea3i <strong>cao h\u01a1n<\/strong> t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n m\u1ea1ng cao \u0111i\u1ec3m c\u1ee7a b\u1ea1n \u00edt nh\u1ea5t 20%. N\u1ebfu m\u1ea1ng c\u1ee7a b\u1ea1n l\u00e0 1 Gbps, h\u00e3y ch\u1ecdn thi\u1ebft b\u1ecb <strong>IPS<\/strong> c\u00f3 Throughput t\u1ed1i thi\u1ec3u 1.2 Gbps \u0111\u1ec3 tr\u00e1nh n\u00fat th\u1eaft c\u1ed5 chai.<\/li>\n<li><strong>Latency:<\/strong> \u0110\u1ed9 tr\u1ec5 (th\u1eddi gian <strong>IPS<\/strong> c\u1ea7n \u0111\u1ec3 x\u1eed l\u00fd g\u00f3i tin) ph\u1ea3i c\u1ef1c k\u1ef3 th\u1ea5p, th\u01b0\u1eddng l\u00e0 d\u01b0\u1edbi 10 mili gia\u02c6y \u0111\u1ec3 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m v\u1ec1 th\u1eddi gian nh\u01b0 VoIP ho\u1eb7c giao d\u1ecbch t\u00e0i ch\u00ednh.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Chat-luong-Co-so-Du-lieu-Chu-ky-Signature-Database\"><\/span>Ch\u1ea5t l\u01b0\u1ee3ng C\u01a1 s\u1edf D\u1eef li\u1ec7u Ch\u1eef k\u00fd (Signature Database)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u1ea3 n\u0103ng ph\u00f2ng th\u1ee7 c\u1ee7a <strong>IPS<\/strong> ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1eadp nh\u1eadt ch\u1eef k\u00fd.<\/p>\n<ul>\n<li>Nghi\u00ean c\u1ee9u nh\u00e0 cung c\u1ea5p <strong>IPS<\/strong>: H\u1ecd c\u00f3 \u0111\u1ed9i ng\u0169 nghi\u00ean c\u1ee9u m\u1ed1i \u0111e d\u1ecda (Threat Research Team) ri\u00eang kh\u00f4ng? T\u1ea7n su\u1ea5t c\u1eadp nh\u1eadt ch\u1eef k\u00fd c\u1ee7a h\u1ecd l\u00e0 bao l\u00e2u (h\u00e0ng gi\u1edd hay h\u00e0ng ng\u00e0y)?<\/li>\n<li>H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> t\u1ed1t ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng c\u1eadp nh\u1eadt ch\u1eef k\u00fd t\u1ef1 \u0111\u1ed9ng v\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Kha-nang-Tuy-chinh-va-Giam-thieu-False-Positive\"><\/span>Kh\u1ea3 n\u0103ng T\u00f9y ch\u1ec9nh v\u00e0 Gi\u1ea3m thi\u1ec3u False Positive<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp, <strong>False Positive<\/strong> (FP) l\u00e0 n\u1ed7i \u0111au l\u1edbn nh\u1ea5t c\u1ee7a qu\u1ea3n tr\u1ecb vi\u00ean <strong>IPS<\/strong>. M\u1ed9t FP c\u00f3 th\u1ec3 ch\u1eb7n l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp h\u1ee3p ph\u00e1p v\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n c\u00f4ng vi\u1ec7c kinh doanh.<\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> b\u1ea1n ch\u1ecdn ph\u1ea3i cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean t\u00f9y ch\u1ec9nh c\u00e1c quy t\u1eafc (Rule Customization) v\u00e0 ng\u01b0\u1ee1ng ph\u00e1t hi\u1ec7n m\u1ed9t c\u00e1ch chi ti\u1ebft.<\/li>\n<li>Kh\u1ea3 n\u0103ng tinh ch\u1ec9nh c\u00e1c c\u01a1 ch\u1ebf Anomaly-based \u0111\u1ec3 n\u00f3 h\u1ecdc h\u1ecfi ch\u00ednh x\u00e1c h\u00e0nh vi m\u1ea1ng c\u1ee7a t\u1ed5 ch\u1ee9c b\u1ea1n l\u00e0 c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Kha-nang-tich-hop-va-Quan-ly-tap-trung\"><\/span>Kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p v\u00e0 Qu\u1ea3n l\u00fd t\u1eadp trung<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong m\u1ed9t ki\u1ebfn tr\u00fac b\u1ea3o m\u1eadt \u0111a l\u1edbp, <strong>IPS<\/strong> c\u1ea7n ph\u1ea3i d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nh\u01b0 <strong>SIEM<\/strong> (Security Information and Event Management) \u0111\u1ec3 ph\u00e2n t\u00edch log t\u1eadp trung.<\/p>\n<ul>\n<li>Ch\u1ecdn m\u1ed9t gi\u1ea3i ph\u00e1p <strong>IPS<\/strong> c\u00f3 giao di\u1ec7n qu\u1ea3n l\u00fd tr\u1ef1c quan (GUI), cho ph\u00e9p qu\u1ea3n l\u00fd t\u1eadp trung nhi\u1ec1u thi\u1ebft b\u1ecb <strong>IPS<\/strong> c\u00f9ng l\u00fac.<\/li>\n<li>N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng h\u1ec7 sinh th\u00e1i b\u1ea3o m\u1eadt c\u1ee7a m\u1ed9t nh\u00e0 cung c\u1ea5p (v\u00ed d\u1ee5: Cisco, Palo Alto), h\u00e3y \u01b0u ti\u00ean gi\u1ea3i ph\u00e1p <strong>IPS<\/strong> t\u01b0\u01a1ng th\u00edch \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a s\u1ef1 t\u00edch h\u1ee3p.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Ung-dung-thuc-te-cua-IPS-trong-doanh-nghiep\"><\/span>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a IPS trong doanh nghi\u1ec7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>IPS<\/strong> \u0111\u00f3ng vai tr\u00f2 b\u1ea3o v\u1ec7 ti\u00ean quy\u1ebft trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng kinh doanh kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng <strong>\u1ee9ng d\u1ee5ng IPS trong doanh nghi\u1ec7p<\/strong> h\u1ed7 tr\u1ee3 tri\u1ec3n khai.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nganh-Tai-chinh-va-Ngan-hang\"><\/span>Ng\u00e0nh T\u00e0i ch\u00ednh v\u00e0 Ng\u00e2n h\u00e0ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c t\u1ed5 ch\u1ee9c t\u00e0i ch\u00ednh l\u00e0 m\u1ee5c ti\u00eau h\u00e0ng \u0111\u1ea7u c\u1ee7a t\u1ed9i ph\u1ea1m m\u1ea1ng. H\u1ecd c\u1ea7n b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng (<strong>PCI DSS<\/strong>) v\u00e0 duy tr\u00ec th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng 24\/7.<\/p>\n<ul>\n<li><strong>B\u1ea3o v\u1ec7 Giao d\u1ecbch Tr\u1ef1c tuy\u1ebfn:<\/strong> <strong>IPS<\/strong> \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc c\u00e1c m\u00e1y ch\u1ee7 giao d\u1ecbch \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbp 7 (Application Layer) nh\u01b0 <strong>Session Hijacking<\/strong> ho\u1eb7c <strong>Parameter Tampering<\/strong> nh\u1eafm v\u00e0o \u1ee9ng d\u1ee5ng ng\u00e2n h\u00e0ng tr\u1ef1c tuy\u1ebfn.<\/li>\n<li><strong>Ng\u0103n ch\u1eb7n DDoS:<\/strong> <strong>IPS<\/strong> (th\u01b0\u1eddng l\u00e0 NIPS) gi\u00fap ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng, l\u1ecdc b\u1ecf c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed9c h\u1ea1i v\u00e0 ch\u1ec9 cho ph\u00e9p c\u00e1c y\u00eau c\u1ea7u h\u1ee3p ph\u00e1p \u0111\u1ebfn m\u00e1y ch\u1ee7, \u0111\u1ea3m b\u1ea3o d\u1ecbch v\u1ee5 kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n, ngay c\u1ea3 khi b\u1ecb t\u1ea5n c\u00f4ng DDoS. IPS h\u1ed7 tr\u1ee3 gi\u1ea3m m\u1ed9t s\u1ed1 ki\u1ec3u DDoS (HTTP flood, application-layer) nh\u01b0ng v\u1edbi DDoS volumetric l\u1edbn c\u1ea7n gi\u1ea3i ph\u00e1p scrubbing\/Cloud DDoS protection.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Nganh-E-commerce-va-Ban-le\"><\/span>Ng\u00e0nh E-commerce v\u00e0 B\u00e1n l\u1ebb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng (Uptime) v\u00e0 b\u1ea3o m\u1eadt th\u00f4ng tin th\u1ebb t\u00edn d\u1ee5ng l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng.<\/p>\n<ul>\n<li><strong>B\u1ea3o v\u1ec7 kh\u1ecfi Web Application Attacks:<\/strong> C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u01b0 <strong>Cross-Site Scripting (XSS)<\/strong> v\u00e0 <strong>SQL Injection<\/strong> r\u1ea5t ph\u1ed5 bi\u1ebfn tr\u00ean c\u00e1c trang web b\u00e1n h\u00e0ng. H\u1ec7 th\u1ed1ng <strong>IPS<\/strong> chuy\u00ean d\u1ee5ng c\u00f3 th\u1ec3 nh\u1eadn di\u1ec7n v\u00e0 ch\u1eb7n c\u00e1c m\u00e3 \u0111\u1ed9c n\u00e0y ngay l\u1eadp t\u1ee9c, b\u1ea3o v\u1ec7 c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng.<\/li>\n<li><strong>B\u1ea3o v\u1ec7 M\u00e1y ch\u1ee7 T\u1ed3n kho v\u00e0 Gi\u00e1:<\/strong> <strong>HIPS<\/strong> \u0111\u01b0\u1ee3c tri\u1ec3n khai tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c quy tr\u00ecnh tr\u00e1i ph\u00e9p truy c\u1eadp ho\u1eb7c s\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u gi\u00e1 s\u1ea3n ph\u1ea9m.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Moi-truong-Chinh-phu-va-Co-so-Ha-tang-Quan-trong\"><\/span>M\u00f4i tr\u01b0\u1eddng Ch\u00ednh ph\u1ee7 v\u00e0 C\u01a1 s\u1edf H\u1ea1 t\u1ea7ng Quan tr\u1ecdng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong m\u00f4i tr\u01b0\u1eddng n\u00e0y, nguy c\u01a1 t\u1ea5n c\u00f4ng m\u1ea1ng do c\u00e1c qu\u1ed1c gia t\u00e0i tr\u1ee3 (State-sponsored attacks) l\u00e0 r\u1ea5t cao.<\/p>\n<ul>\n<li><strong>B\u1ea3o v\u1ec7 H\u1ec7 th\u1ed1ng SCADA\/ICS:<\/strong> Trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n, n\u01b0\u1edbc ho\u1eb7c giao th\u00f4ng, <strong>NIPS<\/strong> ph\u1ea3i \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 gi\u00e1m s\u00e1t c\u00e1c giao th\u1ee9c c\u00f4ng nghi\u1ec7p (v\u00ed d\u1ee5: Modbus, DNP3). <strong>IPS<\/strong> gi\u00fap ng\u0103n ch\u1eb7n c\u00e1c l\u1ec7nh \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1 v\u1eadt l\u00fd (v\u00ed d\u1ee5: l\u00e0m h\u1ecfng m\u00e1y m\u00f3c, \u0111i\u1ec1u ch\u1ec9nh sai th\u00f4ng s\u1ed1 v\u1eadn h\u00e0nh).<\/li>\n<li><strong>Case Study (M\u00f4 ph\u1ecfng):<\/strong> M\u1ed9t t\u1ed5 ch\u1ee9c Ch\u00ednh ph\u1ee7 khu v\u1ef1c Ch\u00e2u \u00c1 \u0111\u00e3 tri\u1ec3n khai <strong>IPS<\/strong> th\u1ebf h\u1ec7 m\u1edbi. Trong qu\u00fd 4\/2023, h\u1ec7 th\u1ed1ng \u0111\u00e3 ghi nh\u1eadn v\u00e0 ng\u0103n ch\u1eb7n 1.500 n\u1ed7 l\u1ef1c khai th\u00e1c l\u1ed7 h\u1ed5ng \u0111\u00e3 bi\u1ebft, v\u00e0 45 s\u1ef1 ki\u1ec7n Anomaly-based nghi ng\u1edd l\u00e0 t\u1ea5n c\u00f4ng Zero-day, gi\u00fap h\u1ec7 th\u1ed1ng duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng 100%.<\/li>\n<\/ul>\n<figure id=\"attachment_34085\" aria-describedby=\"caption-attachment-34085\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-34085\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Ung-dung-cua-IPS.jpg\" alt=\"\u1ee8ng d\u1ee5ng c\u1ee7a IPS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Ung-dung-cua-IPS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Ung-dung-cua-IPS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Ung-dung-cua-IPS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-34085\" class=\"wp-caption-text\">\u1ee8ng d\u1ee5ng c\u1ee7a IPS<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Nhung-luu-y-khi-trien-khai-va-su-dung-IPS\"><\/span>Nh\u1eefng l\u01b0u \u00fd khi tri\u1ec3n khai v\u00e0 s\u1eed d\u1ee5ng IPS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c tri\u1ec3n khai <strong>IPS<\/strong> \u0111\u00f2i h\u1ecfi s\u1ef1 c\u00e2n nh\u1eafc k\u1ef9 l\u01b0\u1ee1ng v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u00e0 quy tr\u00ecnh v\u1eadn h\u00e0nh. <a href=\"https:\/\/interdata.vn\/\"><strong>InterData<\/strong><\/a> \u0111\u00fac k\u1ebft nh\u1eefng <strong>l\u01b0u \u00fd khi tri\u1ec3n khai IPS<\/strong> sau \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ec7 th\u1ed1ng:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dat-IPS-o-che-do-Noi-tuyen-Inline-Deployment\"><\/span>\u0110\u1eb7t IPS \u1edf ch\u1ebf \u0111\u1ed9 N\u1ed9i tuy\u1ebfn (Inline Deployment)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 <strong>IPS<\/strong> c\u00f3 kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n, n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t <strong>n\u1ed9i tuy\u1ebfn<\/strong> (Inline) tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n d\u1eef li\u1ec7u m\u00e0 n\u00f3 c\u1ea7n b\u1ea3o v\u1ec7. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ecdi g\u00f3i tin \u0111\u1ec1u ph\u1ea3i \u0111i qua <strong>IPS<\/strong> tr\u01b0\u1edbc khi \u0111\u1ebfn \u0111\u00edch.<\/p>\n<ul>\n<li><strong>V\u1ecb tr\u00ed Chi\u1ebfn l\u01b0\u1ee3c:<\/strong> V\u1ecb tr\u00ed t\u1ed1i \u01b0u th\u01b0\u1eddng l\u00e0 <strong>sau Firewall<\/strong> (\u0111\u1ec3 Firewall l\u1ecdc l\u01b0u l\u01b0\u1ee3ng r\u00e1c ban \u0111\u1ea7u) v\u00e0 <strong>tr\u01b0\u1edbc m\u00e1y ch\u1ee7 web\/m\u00e1y ch\u1ee7 \u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m<\/strong>.<\/li>\n<li><strong>C\u01a1 ch\u1ebf Fail-Open\/Bypass:<\/strong> C\u00e1c thi\u1ebft b\u1ecb <strong>IPS<\/strong> chuy\u00ean d\u1ee5ng lu\u00f4n c\u00f3 c\u01a1 ch\u1ebf <strong>Fail-Open<\/strong> (ho\u1eb7c Bypass) (N\u00ean c\u00f3 c\u01a1 ch\u1ebf Fail-Open\/Bypass nh\u01b0ng c\u1ea7n ki\u1ec3m th\u1eed v\u00e0 k\u1ebf ho\u1ea1ch khi b\u1eadt\/t\u1eaft).\u00a0 N\u1ebfu thi\u1ebft b\u1ecb <strong>IPS<\/strong> g\u1eb7p s\u1ef1 c\u1ed1 ho\u1eb7c m\u1ea5t \u0111i\u1ec7n, c\u01a1 ch\u1ebf n\u00e0y s\u1ebd t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n m\u1ea1ch (Switching) \u0111\u1ec3 l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng ti\u1ebfp t\u1ee5c \u0111i qua m\u00e0 kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n, tr\u00e1nh l\u00e0m s\u1eadp to\u00e0n b\u1ed9 m\u1ea1ng l\u01b0\u1edbi v\u00ec s\u1ef1 c\u1ed1 c\u1ee7a m\u1ed9t thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Quan-ly-va-Dieu-chinh-Ty-le-False-Positive\"><\/span>Qu\u1ea3n l\u00fd v\u00e0 \u0110i\u1ec1u ch\u1ec9nh T\u1ef7 l\u1ec7 False Positive<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>False Positive<\/strong> (FP) l\u00e0 th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t trong <strong>v\u1eadn h\u00e0nh IPS<\/strong>. T\u1ef7 l\u1ec7 FP cao kh\u00f4ng ch\u1ec9 g\u00e2y gi\u00e1n \u0111o\u1ea1n kinh doanh m\u00e0 c\u00f2n l\u00e0m cho qu\u1ea3n tr\u1ecb vi\u00ean &#8220;m\u1ec7t m\u1ecfi&#8221; v\u1edbi c\u1ea3nh b\u00e1o, d\u1eabn \u0111\u1ebfn vi\u1ec7c b\u1ecf qua c\u00e1c c\u1ea3nh b\u00e1o th\u1ef1c (False Negative).<\/p>\n<ul>\n<li><strong>Giai \u0111o\u1ea1n H\u1ecdc h\u1ecfi (Learning Phase):<\/strong> Khi tri\u1ec3n khai ban \u0111\u1ea7u, h\u00e3y \u0111\u1eb7t <strong>IPS<\/strong> \u1edf ch\u1ebf \u0111\u1ed9 gi\u00e1m s\u00e1t (<strong>Monitor Mode<\/strong> ho\u1eb7c IDS Mode) trong \u00edt nh\u1ea5t 2\u22124 tu\u1ea7n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p <strong>IPS<\/strong> x\u00e2y d\u1ef1ng h\u1ed3 s\u01a1 Baseline ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng g\u00e2y ra t\u00e1c \u0111\u1ed9ng ch\u1eb7n.<\/li>\n<li><strong>Tinh ch\u1ec9nh Quy t\u1eafc (Rule Tuning):<\/strong> Sau giai \u0111o\u1ea1n h\u1ecdc h\u1ecfi, qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n tinh ch\u1ec9nh c\u00e1c quy t\u1eafc c\u00f3 nguy c\u01a1 cao g\u00e2y FP. V\u00ed d\u1ee5, n\u1ebfu bi\u1ebft r\u1eb1ng m\u1ed9t \u1ee9ng d\u1ee5ng n\u1ed9i b\u1ed9 s\u1eed d\u1ee5ng m\u1ed9t giao th\u1ee9c l\u1ea1, h\u00e3y t\u1ea1o m\u1ed9t ngo\u1ea1i l\u1ec7 (Exception) ch\u1ec9 cho ph\u00e9p giao th\u1ee9c \u0111\u00f3.<\/li>\n<li>Theo nghi\u00ean c\u1ee9u c\u1ee7a Gartner (2022), c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 quy tr\u00ecnh tinh ch\u1ec9nh quy t\u1eafc <strong>IPS<\/strong> \u0111\u1ecbnh k\u1ef3 h\u00e0ng th\u00e1ng c\u00f3 t\u1ef7 l\u1ec7 FP th\u1ea5p h\u01a1n 50% so v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c ch\u1ec9 c\u00e0i \u0111\u1eb7t v\u00e0 \u0111\u1ec3 \u0111\u00f3.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Cap-nhat-Lien-tuc-va-Bao-tri-Dinh-ky\"><\/span>C\u1eadp nh\u1eadt Li\u00ean t\u1ee5c v\u00e0 B\u1ea3o tr\u00ec \u0110\u1ecbnh k\u1ef3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u1ea3 n\u0103ng ph\u00f2ng th\u1ee7 c\u1ee7a <strong>IPS<\/strong> suy gi\u1ea3m nhanh ch\u00f3ng n\u1ebfu c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u1eef k\u00fd kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt.<\/p>\n<ul>\n<li><strong>T\u1ef1 \u0111\u1ed9ng h\u00f3a C\u1eadp nh\u1eadt:<\/strong> Thi\u1ebft l\u1eadp l\u1ecbch t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt ch\u1eef k\u00fd t\u1eeb nh\u00e0 cung c\u1ea5p <strong>IPS<\/strong> \u00edt nh\u1ea5t h\u00e0ng ng\u00e0y.<\/li>\n<li><strong>B\u1ea3o tr\u00ec IPS:<\/strong> Th\u1ef1c hi\u1ec7n ki\u1ec3m tra hi\u1ec7u su\u1ea5t \u0111\u1ecbnh k\u1ef3 (stress test) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng <strong>IPS<\/strong> v\u1eabn c\u00f3 th\u1ec3 x\u1eed l\u00fd t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd m\u1ea1ng hi\u1ec7n t\u1ea1i khi m\u1ea1ng t\u0103ng tr\u01b0\u1edfng.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c b\u1ea3n v\u00e1 l\u1ed7i (Patch) c\u1ee7a ph\u1ea7n m\u1ec1m <strong>IPS<\/strong> \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ngay khi nh\u00e0 cung c\u1ea5p ph\u00e1t h\u00e0nh, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c b\u1ea3n v\u00e1 b\u1ea3o m\u1eadt.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Dao-tao-Doi-ngu-Van-hanh\"><\/span>\u0110\u00e0o t\u1ea1o \u0110\u1ed9i ng\u0169 V\u1eadn h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t h\u1ec7 th\u1ed1ng <strong>IPS<\/strong> ti\u00ean ti\u1ebfn nh\u1ea5t c\u0169ng kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 n\u1ebfu kh\u00f4ng c\u00f3 \u0111\u1ed9i ng\u0169 v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o b\u00e0i b\u1ea3n.<\/p>\n<ul>\n<li>\u0110\u1ed9i ng\u0169 c\u1ea7n hi\u1ec3u r\u00f5 c\u00e1ch \u0111\u1ecdc b\u00e1o c\u00e1o <strong>IPS<\/strong>, ph\u00e2n bi\u1ec7t gi\u1eefa t\u1ea5n c\u00f4ng nghi\u00eam tr\u1ecdng v\u00e0 FP, v\u00e0 c\u00e1ch ph\u1ea3n \u1ee9ng nhanh ch\u00f3ng khi nh\u1eadn \u0111\u01b0\u1ee3c c\u1ea3nh b\u00e1o v\u1ec1 c\u00e1c m\u1ed1i \u0111e d\u1ecda.<\/li>\n<\/ul>\n<figure id=\"attachment_34086\" aria-describedby=\"caption-attachment-34086\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-34086\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Luu-y-khi-trien-khai-IPS.jpg\" alt=\"L\u01b0u \u00fd khi tri\u1ec3n khai IPS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Luu-y-khi-trien-khai-IPS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Luu-y-khi-trien-khai-IPS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/10\/Luu-y-khi-trien-khai-IPS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-34086\" class=\"wp-caption-text\">L\u01b0u \u00fd khi tri\u1ec3n khai IPS<\/figcaption><\/figure>\n<p>Qua b\u00e0i vi\u1ebft n\u00e0y, InterData \u0111\u00e3 cung c\u1ea5p c\u00e1i nh\u00ecn s\u00e2u s\u1eafc v\u00e0 to\u00e0n di\u1ec7n v\u1ec1 <strong>IPS l\u00e0 g\u00ec<\/strong> (H\u1ec7 th\u1ed1ng Ng\u0103n ch\u1eb7n X\u00e2m nh\u1eadp). T\u1eeb \u0111\u1ecbnh ngh\u0129a, l\u1ecbch s\u1eed h\u00ecnh th\u00e0nh t\u1eeb <strong>IDS<\/strong>, \u0111\u1ebfn nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ph\u1ee9c t\u1ea1p d\u1ef1a tr\u00ean Signature v\u00e0 Anomaly, v\u00e0 c\u00e1c lo\u1ea1i ki\u1ebfn tr\u00fac tri\u1ec3n khai (<strong>NIPS<\/strong>, <strong>HIPS<\/strong>, <strong>WIPS<\/strong>).<\/p>\n<p><strong>IPS<\/strong> l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n ph\u00f2ng th\u1ee7 m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng kh\u00f4ng th\u1ec3 thi\u1ebfu. Kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n t\u1ee9c th\u1eddi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u00e3 bi\u1ebft v\u00e0 th\u1eadm ch\u00ed l\u00e0 <strong>Zero-day<\/strong> c\u1ee7a <strong>IPS<\/strong> l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ec3 doanh nghi\u1ec7p duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n v\u00e0 kh\u1ea3 d\u1ee5ng c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n<p>Khi c\u00e2n nh\u1eafc <strong>l\u1ef1a ch\u1ecdn h\u1ec7 th\u1ed1ng ng\u0103n ch\u1eb7n x\u00e2m nh\u1eadp<\/strong>, h\u00e3y nh\u1edb \u01b0u ti\u00ean t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd (Throughput), ch\u1ea5t l\u01b0\u1ee3ng ch\u1eef k\u00fd, v\u00e0 kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ef7 l\u1ec7 <strong>False Positive<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>IPS, vi\u1ebft t\u1eaft c\u1ee7a Intrusion Prevention System (H\u1ec7 th\u1ed1ng Ng\u0103n ch\u1eb7n X\u00e2m nh\u1eadp), l\u00e0 gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng, ra \u0111\u1eddi \u0111\u1ec3 kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u1ec9 ph\u00e1t hi\u1ec7n c\u1ee7a IDS, gi\u00fap c\u1ea3nh b\u00e1o m\u00e0 v\u00e0 ng\u0103n ch\u1eb7n t\u1ee9c th\u1eddi c\u00e1c m\u1ed1i \u0111e d\u1ecda nh\u01b0 t\u1ea5n c\u00f4ng Zero-day v\u00e0 m\u00e3 \u0111\u1ed9c. B\u00e0i vi\u1ebft<\/p>\n","protected":false},"author":27,"featured_media":34087,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[151],"tags":[],"class_list":["post-34059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mang"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/34059","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\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=34059"}],"version-history":[{"count":9,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/34059\/revisions"}],"predecessor-version":[{"id":34103,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/34059\/revisions\/34103"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/34087"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=34059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=34059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=34059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}