{"id":38087,"date":"2026-01-19T14:50:12","date_gmt":"2026-01-19T07:50:12","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=38087"},"modified":"2026-01-19T14:53:36","modified_gmt":"2026-01-19T07:53:36","slug":"netdata-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/netdata-la-gi\/","title":{"rendered":"Netdata l\u00e0 g\u00ec? L\u1ee3i \u00edch, c\u00e1ch c\u00e0i\/s\u1eed d\u1ee5ng Netdata monitoring VPS"},"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\/netdata-la-gi\/#Netdata-la-gi\" >Netdata 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\/netdata-la-gi\/#Tai-sao-nen-su-dung-Netdata-de-giam-sat-Server\" >T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng Netdata \u0111\u1ec3 gi\u00e1m s\u00e1t Server?<\/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\/netdata-la-gi\/#1-Kha-nang-giam-sat-Real-time-Thoi-gian-thuc\" >1. Kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t Real-time (Th\u1eddi gian th\u1ef1c)<\/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\/netdata-la-gi\/#2-Giao-dien-truc-quan-Visual-Interactive\" >2. Giao di\u1ec7n tr\u1ef1c quan (Visual &amp; Interactive)<\/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\/netdata-la-gi\/#3-Tieu-ton-it-tai-nguyen-Lightweight\" >3. Ti\u00eau t\u1ed1n \u00edt t\u00e0i nguy\u00ean (Lightweight)<\/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\/netdata-la-gi\/#4-Zero-Configuration-Cau-hinh-bang-khong\" >4. Zero-Configuration (C\u1ea5u h\u00ecnh b\u1eb1ng kh\u00f4ng)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#5-Hoan-toan-mien-phi-Open-Source\" >5. Ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed (Open Source)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Netdata-theo-doi-duoc-nhung-chi-so-nao\" >Netdata theo d\u00f5i \u0111\u01b0\u1ee3c nh\u1eefng ch\u1ec9 s\u1ed1 n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Netdata-ho-tro-giam-sat-he-thong-nhu-the-nao\" >Netdata h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Thu-thap-du-lieu-he-thong-va-ung-dung-theo-thoi-gian-thuc\" >Thu th\u1eadp d\u1eef li\u1ec7u h\u1ec7 th\u1ed1ng v\u00e0 \u1ee9ng d\u1ee5ng theo th\u1eddi gian th\u1ef1c<\/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\/netdata-la-gi\/#Truc-quan-hoa-du-lieu-bang-bieu-do-de-phan-tich\" >Tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u b\u1eb1ng bi\u1ec3u \u0111\u1ed3 d\u1ec5 ph\u00e2n t\u00edch<\/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\/netdata-la-gi\/#Giam-sat-va-canh-bao-bat-thuong-tu-dong\" >Gi\u00e1m s\u00e1t v\u00e0 c\u1ea3nh b\u00e1o b\u1ea5t th\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng<\/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\/netdata-la-gi\/#Ho-tro-khac-phuc-su-co-voi-do-chi-tiet-tung-giay\" >H\u1ed7 tr\u1ee3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u1edbi \u0111\u1ed9 chi ti\u1ebft t\u1eebng gi\u00e2y<\/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\/netdata-la-gi\/#Luu-tru-du-lieu-hieu-qua-tren-tung-node\" >L\u01b0u tr\u1eef d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 tr\u00ean t\u1eebng node<\/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\/netdata-la-gi\/#Xuat-va-tich-hop-du-lieu-voi-he-sinh-thai-khac\" >Xu\u1ea5t v\u00e0 t\u00edch h\u1ee3p d\u1eef li\u1ec7u v\u1edbi h\u1ec7 sinh th\u00e1i kh\u00e1c<\/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\/netdata-la-gi\/#Tong-hop-du-lieu-tu-nhieu-node-phan-tan\" >T\u1ed5ng h\u1ee3p d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u node ph\u00e2n t\u00e1n<\/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\/netdata-la-gi\/#So-sanh-Netdata-voi-Zabbix-va-Prometheus\" >So s\u00e1nh Netdata v\u1edbi Zabbix v\u00e0 Prometheus<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Kien-truc-Netdata-gom-nhung-thanh-phan-nao\" >Ki\u1ebfn tr\u00fac Netdata g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Netdata-Agent-la-gi\" >Netdata Agent l\u00e0 g\u00ec?<\/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\/netdata-la-gi\/#Netdata-Cloud-la-gi\" >Netdata Cloud l\u00e0 g\u00ec?<\/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\/netdata-la-gi\/#Vi-Sao-Netdata-phu-hop-de-Monitoring-VPS\" >V\u00ec Sao Netdata ph\u00f9 h\u1ee3p \u0111\u1ec3 Monitoring VPS?<\/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\/netdata-la-gi\/#Realtime-gan-nhu-tuc-thi-per-second-metrics\" >Realtime g\u1ea7n nh\u01b0 t\u1ee9c th\u00ec (per-second metrics)<\/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\/netdata-la-gi\/#Nhe-phu-hop-VPS-cau-hinh-thap\" >Nh\u1eb9, ph\u00f9 h\u1ee3p VPS c\u1ea5u h\u00ecnh th\u1ea5p<\/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\/netdata-la-gi\/#Cai-dat-nhanh-it-cau-hinh\" >C\u00e0i \u0111\u1eb7t nhanh, \u00edt c\u1ea5u h\u00ecnh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Huong-dan-cai-dat-Netdata-tren-Server-chi-tiet\" >H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t Netdata tr\u00ean Server chi ti\u1ebft<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#1-Chuan-bi-moi-truong-he-thong-truoc-khi-cai-Netdata\" >1. Chu\u1ea9n b\u1ecb m\u00f4i tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi c\u00e0i Netdata<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#2-Cac-buoc-cai-dat-Netdata-tu-ma-nguon\" >2. C\u00e1c b\u01b0\u1edbc c\u00e0i \u0111\u1eb7t Netdata t\u1eeb m\u00e3 ngu\u1ed3n<\/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\/netdata-la-gi\/#3-Mo-port-Netdata-neu-khong-truy-cap-duoc-Dashboard\" >3. M\u1edf port Netdata n\u1ebfu kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c Dashboard<\/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\/netdata-la-gi\/#4-Thiet-lap-Netdata-tu-khoi-dong-khi-reboot\" >4. Thi\u1ebft l\u1eadp Netdata t\u1ef1 kh\u1edfi \u0111\u1ed9ng khi reboot<\/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\/netdata-la-gi\/#5-Cach-chay-dung-Netdata-thu-cong\" >5. C\u00e1ch ch\u1ea1y, d\u1eebng Netdata th\u1ee7 c\u00f4ng<\/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\/netdata-la-gi\/#6-Cach-cap-nhat-Netdata-len-phien-ban-moi\" >6. C\u00e1ch c\u1eadp nh\u1eadt Netdata l\u00ean phi\u00ean b\u1ea3n m\u1edbi<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Luu-y-khi-dung-Netdata-trong-moi-truong-Production\" >L\u01b0u \u00fd khi d\u00f9ng Netdata trong m\u00f4i tr\u01b0\u1eddng Production<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Bao-mat-dashboard\" >B\u1ea3o m\u1eadt dashboard<\/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\/netdata-la-gi\/#Ket-hop-alert-Canh-bao\" >K\u1ebft h\u1ee3p alert (C\u1ea3nh b\u00e1o)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Cau-hoi-thuong-gap-FAQs\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#1-Netdata-co-lam-cham-VPS-khong\" >1. Netdata c\u00f3 l\u00e0m ch\u1eadm VPS kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#2-Netdata-luu-du-lieu-trong-bao-lau\" >2. Netdata l\u01b0u d\u1eef li\u1ec7u trong bao l\u00e2u?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#3-Lam-sao-de-bao-mat-Netdata-Dashboard\" >3. L\u00e0m sao \u0111\u1ec3 b\u1ea3o m\u1eadt Netdata Dashboard?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/#Ket-luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<p>B\u1ea1n \u0111ang qu\u1ea3n l\u00fd m\u1ed9t h\u1ec7 th\u1ed1ng VPS nh\u01b0ng th\u01b0\u1eddng xuy\u00ean g\u1eb7p t\u00ecnh tr\u1ea1ng website t\u1ea3i ch\u1eadm, server b\u1ecb treo ho\u1eb7c CPU t\u0103ng \u0111\u1ed9t bi\u1ebfn m\u00e0 kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n? C\u00e1c gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng y\u00eau c\u1ea7u chi ph\u00ed cao ho\u1eb7c quy tr\u00ecnh c\u00e0i \u0111\u1eb7t ph\u1ee9c t\u1ea1p, g\u00e2y kh\u00f3 kh\u0103n cho ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb kh\u00f4ng chuy\u00ean. <a href=\"https:\/\/interdata.vn\/blog\/netdata-la-gi\/\"><strong>Netdata monitoring<\/strong><\/a> xu\u1ea5t hi\u1ec7n nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u, gi\u00fap theo d\u00f5i s\u1ee9c kh\u1ecfe m\u00e1y ch\u1ee7 theo th\u1eddi gian th\u1ef1c (Real-time) v\u1edbi \u0111\u1ed9 chi ti\u1ebft \u0111\u1ebfn t\u1eebng gi\u00e2y.<\/p>\n<p>T\u1ea1i b\u00e0i vi\u1ebft n\u00e0y, c\u00f9ng InterData t\u00ecm hi\u1ec3u c\u00f4ng c\u1ee5 Netdata, t\u1eeb kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n, l\u1ee3i \u00edch khi s\u1eed d\u1ee5ng, c\u00e1c t\u00ednh n\u0103ng c\u1ee7a Netdata \u0111\u1ebfn c\u00e1ch c\u00e1ch c\u00e0i\/s\u1eed d\u1ee5ng Netdata monitoring VPS hi\u1ec7u qu\u1ea3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng lu\u00f4n \u1edf m\u1ee9c cao nh\u1ea5t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Netdata-la-gi\"><\/span>Netdata l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Netdata<\/strong> l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u00e3 ngu\u1ed3n m\u1edf (open-source) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t \u0111\u1ec3 gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t (performance) v\u00e0 s\u1ee9c kh\u1ecfe h\u1ec7 th\u1ed1ng (health monitoring). \u0110i\u1ec3m \u0111\u1eb7c bi\u1ec7t khi\u1ebfn Netdata t\u00e1ch bi\u1ec7t kh\u1ecfi \u0111\u00e1m \u0111\u00f4ng c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t kh\u00e1c ch\u00ednh l\u00e0 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb s\u1ed1 li\u1ec7u theo th\u1eddi gian th\u1ef1c (real-time).<\/p>\n<p>Thay v\u00ec ch\u1ec9 cung c\u1ea5p c\u00e1c b\u00e1o c\u00e1o t\u0129nh ho\u1eb7c c\u1eadp nh\u1eadt ch\u1eadm, Netdata ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t &#8220;\u0111\u1eb7c v\u1ee5&#8221; (agent) \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u1ef1c ti\u1ebfp tr\u00ean h\u1ec7 th\u1ed1ng. C\u00f4ng c\u1ee5 n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 theo d\u00f5i hi\u1ec7u su\u1ea5t c\u1ee7a VPS, server v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng Linux\/Unix m\u1ed9t c\u00e1ch li\u00ean t\u1ee5c, chi ti\u1ebft v\u00e0 tr\u1ef1c quan.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-38102\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cong-cu-Netdata-la-gi.png\" alt=\"C\u00f4ng c\u1ee5 Netdata l\u00e0 g\u00ec\" width=\"800\" height=\"420\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cong-cu-Netdata-la-gi.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cong-cu-Netdata-la-gi-300x158.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cong-cu-Netdata-la-gi-768x403.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>V\u1ec1 b\u1ea3n ch\u1ea5t, Netdata ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t <strong>agent<\/strong> c\u00e0i tr\u1ef1c ti\u1ebfp tr\u00ean VPS\/server, t\u1ef1 \u0111\u1ed9ng thu th\u1eadp v\u00e0 hi\u1ec3n th\u1ecb h\u00e0ng ngh\u00ecn ch\u1ec9 s\u1ed1 hi\u1ec7u n\u0103ng m\u1ed7i gi\u00e2y, bao g\u1ed3m:<\/p>\n<ul>\n<li>CPU, Load Average<\/li>\n<li>RAM, Swap<\/li>\n<li>Disk I\/O<\/li>\n<li>Network<\/li>\n<li>Process, service, container (Docker, K8s)<\/li>\n<li>Database, web server, application stack<\/li>\n<\/ul>\n<p>H\u1ea7u h\u1ebft c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t server c\u0169 th\u01b0\u1eddng l\u1ea5y m\u1eabu d\u1eef li\u1ec7u (sampling) theo chu k\u1ef3 1 ph\u00fat, 5 ph\u00fat ho\u1eb7c th\u1eadm ch\u00ed l\u00e2u h\u01a1n. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y th\u01b0\u1eddng b\u1ecf l\u1ee1 c\u00e1c s\u1ef1 c\u1ed1 ng\u1eafn h\u1ea1n (micro-bursts) \u2013 v\u00ed d\u1ee5 nh\u01b0 CPU t\u0103ng v\u1ecdt l\u00ean 100% trong 2 gi\u00e2y r\u1ed3i gi\u1ea3m xu\u1ed1ng, nh\u01b0ng \u0111\u1ee7 l\u00e0m treo \u1ee9ng d\u1ee5ng.<\/p>\n<p>Netdata gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u01a1 ch\u1ebf <strong>per-second granularity<\/strong>. Ngh\u0129a l\u00e0, h\u1ec7 th\u1ed1ng thu th\u1eadp v\u00e0 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u m\u1ed7i gi\u00e2y m\u1ed9t l\u1ea7n. \u0110i\u1ec1u n\u00e0y gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean nh\u00ecn th\u1ea5y ch\u00ednh x\u00e1c \u0111i\u1ec1u g\u00ec \u0111ang di\u1ec5n ra ngay t\u1ea1i th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i, kh\u00f4ng c\u00f3 \u0111\u1ed9 tr\u1ec5 \u0111\u00e1ng k\u1ec3.<\/p>\n<p>S\u1ef1 linh ho\u1ea1t c\u1ee7a Netdata th\u1ec3 hi\u1ec7n qua kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i:<\/p>\n<ul>\n<li><strong>Linux:<\/strong> Ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0 tr\u00ean h\u1ea7u h\u1ebft c\u00e1c b\u1ea3n ph\u00e2n ph\u1ed1i nh\u01b0 Ubuntu, CentOS, AlmaLinux, Debian. \u0110\u00e2y l\u00e0 m\u00f4i tr\u01b0\u1eddng ch\u00ednh m\u00e0 ng\u01b0\u1eddi d\u00f9ng VPS t\u1ea1i Vi\u1ec7t Nam th\u01b0\u1eddng s\u1eed d\u1ee5ng.<\/li>\n<li><strong>Container &amp; Orchestration:<\/strong> H\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t s\u00e2u cho Docker, Kubernetes.<\/li>\n<li><strong>H\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1c:<\/strong> macOS, FreeBSD.<\/li>\n<\/ul>\n<blockquote><p>S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 &#8220;\u0111\u1ed9 chi ti\u1ebft 1 gi\u00e2y&#8221; c\u1ee7a Netdata so v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 chu k\u1ef3 60 gi\u00e2y gi\u1ed1ng nh\u01b0 vi\u1ec7c b\u1ea1n xem m\u1ed9t video 60fps so v\u1edbi vi\u1ec7c xem c\u00e1c b\u1ee9c \u1ea3nh ch\u1ee5p r\u1eddi r\u1ea1c. B\u1ea1n s\u1ebd kh\u00f4ng b\u1ecf l\u1ee1 b\u1ea5t k\u1ef3 chuy\u1ec3n \u0111\u1ed9ng n\u00e0o.<\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Tai-sao-nen-su-dung-Netdata-de-giam-sat-Server\"><\/span>T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng Netdata \u0111\u1ec3 gi\u00e1m s\u00e1t Server?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trong b\u1ed1i c\u1ea3nh c\u00f3 h\u00e0ng ch\u1ee5c ph\u1ea7n m\u1ec1m monitor VPS tr\u00ean th\u1ecb tr\u01b0\u1eddng, Netdata v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c v\u1ecb th\u1ebf v\u1eefng ch\u1eafc nh\u1edd 5 \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i \u0111\u00e1nh tr\u00fang v\u00e0o nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Kha-nang-giam-sat-Real-time-Thoi-gian-thuc\"><\/span>1. Kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t Real-time (Th\u1eddi gian th\u1ef1c)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed9 tr\u1ec5 (latency) th\u1ea5p l\u00e0 y\u1ebfu t\u1ed1 s\u1ed1ng c\u00f2n khi x\u1eed l\u00fd s\u1ef1 c\u1ed1. Khi m\u1ed9t Database Server b\u1ecb qu\u00e1 t\u1ea3i, b\u1ea1n c\u1ea7n bi\u1ebft ngay l\u1eadp t\u1ee9c ti\u1ebfn tr\u00ecnh n\u00e0o \u0111ang chi\u1ebfm d\u1ee5ng I\/O \u0111\u0129a. Netdata hi\u1ec3n th\u1ecb c\u00e1c thay \u0111\u1ed5i tr\u00ean Dashboard g\u1ea7n nh\u01b0 t\u1ee9c th\u00ec ngay khi s\u1ef1 vi\u1ec7c x\u1ea3y ra. \u0110i\u1ec1u n\u00e0y gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian ph\u00e1t hi\u1ec7n v\u00e0 x\u1eed l\u00fd s\u1ef1 c\u1ed1 (MTTR &#8211; Mean Time To Repair).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Giao-dien-truc-quan-Visual-Interactive\"><\/span>2. Giao di\u1ec7n tr\u1ef1c quan (Visual &amp; Interactive)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t r\u00e0o c\u1ea3n l\u1edbn c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nh\u01b0 Nagios hay Zabbix l\u00e0 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng kh\u00e1 kh\u00f4 khan, nhi\u1ec1u b\u1ea3ng bi\u1ec3u s\u1ed1 li\u1ec7u kh\u00f3 \u0111\u1ecdc. Ng\u01b0\u1ee3c l\u1ea1i, c\u00f4ng c\u1ee5 Netdata cung c\u1ea5p m\u1ed9t Dashboard hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb9p m\u1eaft v\u00e0 c\u00f3 t\u00ednh t\u01b0\u01a1ng t\u00e1c cao.<\/p>\n<ul>\n<li>C\u00e1c bi\u1ec3u \u0111\u1ed3 \u0111\u01b0\u1ee3c v\u1ebd t\u1ef1 \u0111\u1ed9ng.<\/li>\n<li>Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 k\u00e9o th\u1ea3 \u0111\u1ec3 zoom-in (ph\u00f3ng to) v\u00e0o m\u1ed9t kho\u1ea3ng th\u1eddi gian c\u1ee5 th\u1ec3.<\/li>\n<li>Khi di chu\u1ed9t qua bi\u1ec3u \u0111\u1ed3, c\u00e1c th\u00f4ng s\u1ed1 chi ti\u1ebft s\u1ebd hi\u1ec7n ra, gi\u00fap ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb d\u1ec5 d\u00e0ng so s\u00e1nh t\u01b0\u01a1ng quan gi\u1eefa c\u00e1c ch\u1ec9 s\u1ed1 (v\u00ed d\u1ee5: so s\u00e1nh l\u01b0\u1ee3ng truy c\u1eadp web v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 RAM c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m).<\/li>\n<\/ul>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-38103\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Li-do-su-dung-Netdata-de-giam-sat-Server.png\" alt=\"L\u00ed do s\u1eed d\u1ee5ng Netdata \u0111\u1ec3 gi\u00e1m s\u00e1t Server\" width=\"800\" height=\"407\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Li-do-su-dung-Netdata-de-giam-sat-Server.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Li-do-su-dung-Netdata-de-giam-sat-Server-300x153.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Li-do-su-dung-Netdata-de-giam-sat-Server-768x391.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"3-Tieu-ton-it-tai-nguyen-Lightweight\"><\/span>3. Ti\u00eau t\u1ed1n \u00edt t\u00e0i nguy\u00ean (Lightweight)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ed7i lo l\u1edbn nh\u1ea5t khi c\u00e0i \u0111\u1eb7t th\u00eam m\u1ed9t <strong>tool gi\u00e1m s\u00e1t server<\/strong> l\u00e0 tool \u0111\u00f3 s\u1ebd &#8220;\u0103n&#8221; h\u1ebft t\u00e0i nguy\u00ean c\u1ee7a ch\u00ednh server \u0111ang c\u1ea7n gi\u00e1m s\u00e1t. Netdata \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng ng\u00f4n ng\u1eef C, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a c\u1ef1c t\u1ed1t \u0111\u1ec3 ch\u1ea1y v\u1edbi t\u00e0i nguy\u00ean t\u1ed1i thi\u1ec3u.<\/p>\n<p>Theo c\u00e1c b\u00e0i ki\u1ec3m tra th\u1ef1c t\u1ebf (benchmark):<\/p>\n<ul>\n<li><strong>CPU Usage:<\/strong> Th\u01b0\u1eddng chi\u1ebfm d\u01b0\u1edbi 1% tr\u00ean m\u1ed9t single-core CPU.<\/li>\n<li><strong>RAM:<\/strong> S\u1eed d\u1ee5ng kho\u1ea3ng 50MB &#8211; 100MB t\u00f9y thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng metrics thu th\u1eadp.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u n\u00e0y bi\u1ebfn Netdata tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c g\u00f3i VPS gi\u00e1 r\u1ebb ho\u1eb7c c\u1ea5u h\u00ecnh th\u1ea5p m\u00e0 kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u n\u0103ng c\u1ee7a \u1ee9ng d\u1ee5ng ch\u00ednh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Zero-Configuration-Cau-hinh-bang-khong\"><\/span>4. Zero-Configuration (C\u1ea5u h\u00ecnh b\u1eb1ng kh\u00f4ng)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 t\u00ednh n\u0103ng &#8220;\u0103n ti\u1ec1n&#8221; \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng chuy\u00ean s\u00e2u v\u1ec1 Sysadmin. Ngay sau khi c\u00e0i \u0111\u1eb7t, Netdata s\u1ebd t\u1ef1 \u0111\u1ed9ng d\u00f2 t\u00ecm (auto-detect) c\u00e1c d\u1ecbch v\u1ee5 \u0111ang ch\u1ea1y tr\u00ean server nh\u01b0 Nginx, Apache, MySQL, Redis, Docker&#8230; v\u00e0 t\u1ef1 \u0111\u1ed9ng t\u1ea1o bi\u1ec3u \u0111\u1ed3 gi\u00e1m s\u00e1t t\u01b0\u01a1ng \u1ee9ng. B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i vi\u1ebft t\u1eebng d\u00f2ng config hay c\u00e0i th\u00eam plugin th\u1ee7 c\u00f4ng cho c\u00e1c t\u00e1c v\u1ee5 c\u01a1 b\u1ea3n n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5-Hoan-toan-mien-phi-Open-Source\"><\/span>5. Ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed (Open Source)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata l\u00e0 ph\u1ea7n m\u1ec1m m\u00e3 ngu\u1ed3n m\u1edf. B\u1ea1n c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ea7y \u0111\u1ee7 t\u00ednh n\u0103ng gi\u00e1m s\u00e1t tr\u00ean VPS c\u1ee7a m\u00ecnh m\u00e0 kh\u00f4ng t\u1ed1n chi ph\u00ed b\u1ea3n quy\u1ec1n. \u0110i\u1ec1u n\u00e0y c\u1ef1c k\u1ef3 ph\u00f9 h\u1ee3p cho sinh vi\u00ean, Freelancer, ho\u1eb7c c\u00e1c doanh nghi\u1ec7p SME mu\u1ed1n ti\u1ebft ki\u1ec7m ng\u00e2n s\u00e1ch v\u1eadn h\u00e0nh.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Netdata-theo-doi-duoc-nhung-chi-so-nao\"><\/span>Netdata theo d\u00f5i \u0111\u01b0\u1ee3c nh\u1eefng ch\u1ec9 s\u1ed1 n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Total and Per Core CPU usage, interrupts, softirqs and frequency.<\/li>\n<li>Total Memory, RAM, Swap and Kernel usage.<\/li>\n<li>Monitors Netfilter \/ iptables Linux firewall connections, events, errors, etc.<\/li>\n<li>Disk I\/O (per disk: bandwidth, operations, backlog, utilization, etc).<\/li>\n<li>Monitors Network interfaces including: bandwidth, packets, errors, drops, etc).<\/li>\n<li>MySQL database monitoring: queries, updates, locks, issues, threads, etc.<\/li>\n<li>Apache and Nginx Status monitoring with mod_status.<\/li>\n<li>Postfix email server message queue.<\/li>\n<li>Squid proxy server bandwidth and requests monitoring.<\/li>\n<li>Processes (running, blocked, forks, active, etc).<\/li>\n<li>System Applications with the process tree (CPU, memory, swap, disk reads\/writes, threads, etc).<\/li>\n<li>Hardware sensors (temperature, voltage, fans, power, humidity, etc).<\/li>\n<li>SNMP devices.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Netdata-ho-tro-giam-sat-he-thong-nhu-the-nao\"><\/span>Netdata h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Netdata \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u1edbi m\u1ee5c ti\u00eau <strong>\u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c gi\u00e1m s\u00e1t, tr\u1ef1c quan h\u00f3a v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1<\/strong>, ph\u00f9 h\u1ee3p cho nhi\u1ec1u k\u1ecbch b\u1ea3n v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng kh\u00e1c nhau \u2013 t\u1eeb VPS c\u00e1 nh\u00e2n \u0111\u1ebfn h\u1ea1 t\u1ea7ng ph\u00e2n t\u00e1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thu-thap-du-lieu-he-thong-va-ung-dung-theo-thoi-gian-thuc\"><\/span>Thu th\u1eadp d\u1eef li\u1ec7u h\u1ec7 th\u1ed1ng v\u00e0 \u1ee9ng d\u1ee5ng theo th\u1eddi gian th\u1ef1c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata c\u00f3 kh\u1ea3 n\u0103ng thu th\u1eadp <strong>to\u00e0n b\u1ed9 c\u00e1c ch\u1ec9 s\u1ed1 s\u1eb5n c\u00f3 t\u1eeb h\u1ec7 th\u1ed1ng v\u00e0 \u1ee9ng d\u1ee5ng<\/strong>, th\u00f4ng qua h\u01a1n <strong>300 b\u1ed9 thu th\u1eadp (collectors)<\/strong>. C\u00f4ng c\u1ee5 n\u00e0y h\u1ed7 tr\u1ee3 <strong>t\u1ef1 \u0111\u1ed9ng kh\u00e1m ph\u00e1 d\u1ecbch v\u1ee5 Kubernetes<\/strong>, gi\u00e1m s\u00e1t container \u1edf m\u1ee9c chi ti\u1ebft, trong khi m\u1ee9c ti\u00eau th\u1ee5 t\u00e0i nguy\u00ean v\u1eabn r\u1ea5t th\u1ea5p \u2013 <strong>kho\u1ea3ng 1% CPU v\u00e0 ch\u1ec9 v\u00e0i MB RAM<\/strong>. Ngo\u00e0i c\u00e1c h\u1ec7 th\u1ed1ng Linux, Netdata c\u00f2n c\u00f3 th\u1ec3 <strong>thu th\u1eadp s\u1ed1 li\u1ec7u t\u1eeb m\u00e1y Windows<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Truc-quan-hoa-du-lieu-bang-bieu-do-de-phan-tich\"><\/span>Tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u b\u1eb1ng bi\u1ec3u \u0111\u1ed3 d\u1ec5 ph\u00e2n t\u00edch<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata tr\u00ecnh b\u00e0y d\u1eef li\u1ec7u d\u01b0\u1edbi d\u1ea1ng <strong>bi\u1ec3u \u0111\u1ed3 c\u00f3 ng\u1eef c\u1ea3nh<\/strong>, gi\u00fap ng\u01b0\u1eddi v\u1eadn h\u00e0nh hi\u1ec3u r\u00f5 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa <strong>ph\u1ea7n c\u1ee9ng, h\u1ec7 \u0111i\u1ec1u h\u00e0nh, \u1ee9ng d\u1ee5ng\/d\u1ecbch v\u1ee5 \u0111ang ch\u1ea1y<\/strong> v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c trong h\u1ea1 t\u1ea7ng. Khi k\u1ebft n\u1ed1i c\u00e1c n\u00fat v\u00e0o <strong>Netdata Cloud<\/strong>, b\u1ea1n c\u00f3 th\u1ec3 quan s\u00e1t to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng t\u1eeb <strong>m\u1ed9t giao di\u1ec7n t\u1eadp trung duy nh\u1ea5t<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Giam-sat-va-canh-bao-bat-thuong-tu-dong\"><\/span>Gi\u00e1m s\u00e1t v\u00e0 c\u1ea3nh b\u00e1o b\u1ea5t th\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t c\u1ee7a Netdata \u0111\u01b0\u1ee3c trang b\u1ecb <strong>h\u00e0ng tr\u0103m c\u1ea3nh b\u00e1o \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh s\u1eb5n<\/strong>, cho ph\u00e9p th\u00f4ng b\u00e1o khi c\u00f3 d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng th\u00f4ng qua <strong>Slack, email, PagerDuty<\/strong> v\u00e0 nhi\u1ec1u k\u00eanh kh\u00e1c. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh c\u1ea3nh b\u00e1o b\u1eb1ng <strong>ng\u01b0\u1ee1ng \u0111\u1ed9ng, \u0111\u1ed9 tr\u1ec5, m\u1eabu c\u1ea3nh b\u00e1o v\u00e0 ph\u00e2n quy\u1ec1n th\u00f4ng b\u00e1o theo vai tr\u00f2<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ho-tro-khac-phuc-su-co-voi-do-chi-tiet-tung-giay\"><\/span>H\u1ed7 tr\u1ee3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u1edbi \u0111\u1ed9 chi ti\u1ebft t\u1eebng gi\u00e2y<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>V\u1edbi \u0111\u1ed9 ph\u00e2n gi\u1ea3i d\u1eef li\u1ec7u <strong>theo t\u1eebng gi\u00e2y<\/strong>, Netdata gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 ph\u00e2n t\u00edch nh\u1eefng b\u1ea5t th\u01b0\u1eddng m\u00e0 nhi\u1ec1u n\u1ec1n t\u1ea3ng gi\u00e1m s\u00e1t kh\u00e1c c\u00f3 th\u1ec3 b\u1ecf s\u00f3t. C\u00e1c bi\u1ec3u \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c gi\u00fap gi\u1ea3m ph\u1ee5 thu\u1ed9c v\u00e0o dashboard ph\u1ee9c t\u1ea1p, \u0111\u1ed3ng th\u1eddi d\u1eef li\u1ec7u l\u1ecbch s\u1eed h\u1ed7 tr\u1ee3 <strong>truy ng\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 v\u1ec1 nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5<\/strong>.<\/p>\n<figure id=\"attachment_38104\" aria-describedby=\"caption-attachment-38104\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-38104\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cach-thuc-Netdata-ho-tro-giam-sat-he-thong.jpg\" alt=\"C\u00e1ch th\u1ee9c Netdata h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cach-thuc-Netdata-ho-tro-giam-sat-he-thong.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cach-thuc-Netdata-ho-tro-giam-sat-he-thong-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Cach-thuc-Netdata-ho-tro-giam-sat-he-thong-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-38104\" class=\"wp-caption-text\">C\u00e1ch th\u1ee9c Netdata h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Luu-tru-du-lieu-hieu-qua-tren-tung-node\"><\/span>L\u01b0u tr\u1eef d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 tr\u00ean t\u1eebng node<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u01a1 ch\u1ebf c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a Netdata cho ph\u00e9p <strong>l\u01b0u tr\u1eef s\u1ed1 li\u1ec7u theo gi\u00e2y trong nhi\u1ec1u khung th\u1eddi gian<\/strong> nh\u01b0 ng\u00e0y, tu\u1ea7n ho\u1eb7c th\u1eadm ch\u00ed h\u00e0ng th\u00e1ng. M\u1ed7i node ph\u00e2n t\u00e1n s\u1ebd <strong>t\u1ef1 l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u1ee5c b\u1ed9<\/strong>, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a tri\u1ec3n khai, gi\u1ea3m chi ph\u00ed v\u00e0 t\u0103ng chi\u1ec1u s\u00e2u cho c\u00e1c dashboard t\u01b0\u01a1ng t\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xuat-va-tich-hop-du-lieu-voi-he-sinh-thai-khac\"><\/span>Xu\u1ea5t v\u00e0 t\u00edch h\u1ee3p d\u1eef li\u1ec7u v\u1edbi h\u1ec7 sinh th\u00e1i kh\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata h\u1ed7 tr\u1ee3 <strong>xu\u1ea5t d\u1eef li\u1ec7u theo gi\u00e2y<\/strong> sang c\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u chu\u1ed7i th\u1eddi gian nh\u01b0 <strong>Graphite, Prometheus, InfluxDB, TimescaleDB<\/strong>\u2026 Nh\u1edd ki\u1ebfn tr\u00fac l\u00f5i m\u1edf v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, Netdata d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t hi\u1ec7n c\u00f3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tong-hop-du-lieu-tu-nhieu-node-phan-tan\"><\/span>T\u1ed5ng h\u1ee3p d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u node ph\u00e2n t\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata cho ph\u00e9p <strong>t\u1eadp trung v\u00e0 ph\u00e2n t\u00edch ch\u1ec9 s\u1ed1 t\u1eeb nhi\u1ec1u node kh\u00e1c nhau t\u1ea1i m\u1ed9t \u0111i\u1ec3m<\/strong>, bao g\u1ed3m c\u1ea3 c\u00e1c node t\u1ea1m th\u1eddi trong <strong>c\u1ee5m Kubernetes<\/strong>, ph\u1ee5c v\u1ee5 nhu c\u1ea7u ph\u00e2n t\u00edch chuy\u00ean s\u00e2u tr\u00ean h\u1ea1 t\u1ea7ng ph\u00e2n t\u00e1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-Netdata-voi-Zabbix-va-Prometheus\"><\/span>So s\u00e1nh Netdata v\u1edbi Zabbix v\u00e0 Prometheus<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o quy m\u00f4 v\u00e0 nhu c\u1ea7u c\u1ee5 th\u1ec3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh chi ti\u1ebft \u0111\u1ec3 b\u1ea1n c\u00f3 c\u00e1i nh\u00ecn kh\u00e1ch quan:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, Helvetica, sans-serif; font-size: 14px;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg,#0C40F4,#077FFA,#0497FC); color: #ffffff;\">\n<th style=\"padding: 14px; border: 1px solid #e5e7eb; text-align: left;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"padding: 14px; border: 1px solid #e5e7eb; text-align: left;\">Netdata<\/th>\n<th style=\"padding: 14px; border: 1px solid #e5e7eb; text-align: left;\">Zabbix<\/th>\n<th style=\"padding: 14px; border: 1px solid #e5e7eb; text-align: left;\">Prometheus (+ Grafana)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: 600;\">M\u1ee5c ti\u00eau ch\u00ednh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Gi\u00e1m s\u00e1t Real-time, Debug l\u1ed7i t\u1ee9c th\u00ec<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Gi\u00e1m s\u00e1t t\u1eadp trung h\u1ec7 th\u1ed1ng l\u1edbn, qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Thu th\u1eadp Time-series data, gi\u00e1m s\u00e1t container\/microservices<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: 600;\">\u0110\u1ed9 kh\u00f3 c\u00e0i \u0111\u1eb7t<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">D\u1ec5 (One-line script)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Kh\u00f3 (C\u1ea7n setup Server, Database, Agent, Frontend)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Trung b\u00ecnh &#8211; Kh\u00e1 (C\u1ea7n c\u1ea5u h\u00ecnh exporter, alertmanager)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: 600;\">\u0110\u1ed9 tr\u1ec5 d\u1eef li\u1ec7u<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">1 gi\u00e2y (Per-second)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Th\u01b0\u1eddng l\u00e0 1 ph\u00fat &#8211; 5 ph\u00fat<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">T\u00f9y ch\u1ec9nh (Th\u01b0\u1eddng 15s &#8211; 1 ph\u00fat)<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: 600;\">L\u01b0u tr\u1eef d\u1eef li\u1ec7u<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Ng\u1eafn h\u1ea1n (M\u1eb7c \u0111\u1ecbnh v\u00e0i ng\u00e0y tr\u00ean RAM\/Disk)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">D\u00e0i h\u1ea1n (L\u01b0u v\u00e0o MySQL\/PostgreSQL)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Trung v\u00e0 d\u00e0i h\u1ea1n (Time-series DB)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: 600;\">Giao di\u1ec7n<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">\u0110\u1eb9p, c\u00f3 s\u1eb5n, t\u1ef1 \u0111\u1ed9ng<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">C\u1ed5 \u0111i\u1ec3n, c\u1ea7n t\u00f9y bi\u1ebfn nhi\u1ec1u<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">C\u1ea7n c\u00e0i th\u00eam Grafana \u0111\u1ec3 v\u1ebd bi\u1ec3u \u0111\u1ed3 \u0111\u1eb9p<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: 600;\">\u0110\u1ed1i t\u01b0\u1ee3ng ph\u00f9 h\u1ee3p<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">C\u00e1 nh\u00e2n, SME, Developer c\u1ea7n debug nhanh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Doanh nghi\u1ec7p l\u1edbn, ISP, Qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng truy\u1ec1n th\u1ed1ng<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">DevOps, H\u1ec7 th\u1ed1ng Kubernetes, Cloud-native<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>K\u1ebft lu\u1eadn:<\/strong><\/p>\n<ul>\n<li>N\u1ebfu b\u1ea1n qu\u1ea3n l\u00fd m\u1ed9t v\u00e0i VPS, c\u1ea7n bi\u1ebft ngay t\u1ea1i sao web ch\u1eadm, h\u00e3y ch\u1ecdn <strong>Netdata<\/strong>.<\/li>\n<li>N\u1ebfu b\u1ea1n l\u00e0 doanh nghi\u1ec7p c\u1ea7n b\u00e1o c\u00e1o l\u1ecbch s\u1eed 1 n\u0103m c\u1ee7a 1000 server, <strong>Zabbix<\/strong> l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n.<\/li>\n<li>N\u1ebfu b\u1ea1n l\u00e0m vi\u1ec7c v\u1edbi Kubernetes v\u00e0 c\u1ea7n query d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p, <strong>Prometheus<\/strong> l\u00e0 ti\u00eau chu\u1ea9n.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Kien-truc-Netdata-gom-nhung-thanh-phan-nao\"><\/span>Ki\u1ebfn tr\u00fac Netdata g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Netdata \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb <strong>hai ph\u1ea7n ch\u00ednh<\/strong>: <strong>Netdata Agent<\/strong> v\u00e0 <strong>Netdata Cloud<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Netdata-Agent-la-gi\"><\/span>Netdata Agent l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata Agent ch\u1ecbu tr\u00e1ch nhi\u1ec7m <strong>thu th\u1eadp h\u00e0ng ngh\u00ecn ch\u1ec9 s\u1ed1<\/strong> t\u1eeb h\u1ec7 th\u1ed1ng, ph\u1ea7n c\u1ee9ng v\u00e0 \u1ee9ng d\u1ee5ng <strong>m\u00e0 kh\u00f4ng c\u1ea7n c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng<\/strong>. Agent ch\u1ea1y tr\u1ef1c ti\u1ebfp tr\u00ean <strong>m\u00e1y ch\u1ee7 v\u1eadt l\u00fd ho\u1eb7c VPS<\/strong>, cung c\u1ea5p d\u1eef li\u1ec7u gi\u00e1m s\u00e1t chi ti\u1ebft cho h\u1ec7 th\u1ed1ng monitoring.<\/p>\n<p>Netdata Agent c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u00ean <strong>h\u1ea7u h\u1ebft c\u00e1c b\u1ea3n ph\u00e2n ph\u1ed1i Linux<\/strong> nh\u01b0 Ubuntu, Debian, CentOS\u2026, c\u0169ng nh\u01b0 c\u00e1c n\u1ec1n t\u1ea3ng <strong>container v\u00e0 microservices<\/strong> nh\u01b0 Kubernetes, Docker, v\u00e0 nhi\u1ec1u h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1c nh\u01b0 <strong>FreeBSD, macOS<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Netdata-Cloud-la-gi\"><\/span>Netdata Cloud l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Netdata Cloud l\u00e0 m\u1ed9t <strong>\u1ee9ng d\u1ee5ng web<\/strong>, cung c\u1ea5p kh\u1ea3 n\u0103ng <strong>quan s\u00e1t h\u1ea1 t\u1ea7ng theo th\u1eddi gian th\u1ef1c<\/strong> tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. Th\u00f4ng qua Netdata Cloud, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 theo d\u00f5i <strong>c\u00e1c ch\u1ec9 s\u1ed1 quan tr\u1ecdng, bi\u1ec3u \u0111\u1ed3 chi ti\u1ebft v\u00e0 tr\u1ea1ng th\u00e1i c\u1ea3nh b\u00e1o<\/strong> t\u1eeb t\u1ea5t c\u1ea3 c\u00e1c node trong <strong>m\u1ed9t giao di\u1ec7n web duy nh\u1ea5t<\/strong>.<\/p>\n<p>Khi s\u1ef1 c\u1ed1 x\u1ea3y ra, b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a Netdata Cloud gi\u00fap <strong>nhanh ch\u00f3ng ph\u00e1t hi\u1ec7n v\u1ea5n \u0111\u1ec1 v\u00e0 truy t\u00ecm nguy\u00ean nh\u00e2n<\/strong>. Netdata Cloud \u0111\u00f3ng vai tr\u00f2 l\u00e0 <strong>l\u1edbp gi\u00e1m s\u00e1t t\u1eadp trung<\/strong>, tuy nhi\u00ean <strong>kh\u00f4ng l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u00e2u d\u00e0i<\/strong>; c\u00e1c ch\u1ec9 s\u1ed1 ch\u1ec9 \u0111\u01b0\u1ee3c <strong>truy\u1ec1n tr\u1ef1c ti\u1ebfp qua \u0111\u00e1m m\u00e2y t\u1edbi tr\u00ecnh duy\u1ec7t<\/strong> t\u1ea1i th\u1eddi \u0111i\u1ec3m ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp giao di\u1ec7n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Vi-Sao-Netdata-phu-hop-de-Monitoring-VPS\"><\/span>V\u00ec Sao Netdata ph\u00f9 h\u1ee3p \u0111\u1ec3 Monitoring VPS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Khi s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7 \u1ea3o (VPS), \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam, ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng quan t\u00e2m \u0111\u1ebfn s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u n\u0103ng v\u00e0 chi ph\u00ed. Netdata gi\u1ea3i quy\u1ebft ch\u00ednh x\u00e1c b\u00e0i to\u00e1n n\u00e0y th\u00f4ng qua ba y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Realtime-gan-nhu-tuc-thi-per-second-metrics\"><\/span>Realtime g\u1ea7n nh\u01b0 t\u1ee9c th\u00ec (per-second metrics)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c g\u00f3i VPS ph\u1ed5 th\u00f4ng th\u01b0\u1eddng c\u00f3 gi\u1edbi h\u1ea1n v\u1ec1 t\u00e0i nguy\u00ean CPU v\u00e0 I\/O. Nh\u1eefng \u0111\u1ee3t t\u1ea5n c\u00f4ng nh\u1ecf ho\u1eb7c l\u1ed7i code g\u00e2y v\u00f2ng l\u1eb7p (loop) c\u00f3 th\u1ec3 khi\u1ebfn t\u00e0i nguy\u00ean t\u0103ng v\u1ecdt trong v\u00e0i gi\u00e2y r\u1ed3i t\u1eaft.<br \/>\nV\u1edbi ph\u01b0\u01a1ng ph\u00e1p <strong>polling truy\u1ec1n th\u1ed1ng<\/strong> (h\u1ecfi s\u1ed1 li\u1ec7u sau m\u1ed7i 5 ph\u00fat), b\u1ea1n s\u1ebd th\u1ea5y bi\u1ec3u \u0111\u1ed3 ho\u00e0n to\u00e0n b\u00ecnh th\u01b0\u1eddng (v\u00ec \u0111\u1ec9nh t\u1ea3i r\u01a1i v\u00e0o gi\u1eefa 2 l\u1ea7n l\u1ea5y m\u1eabu). B\u1ea1n s\u1ebd kh\u00f4ng hi\u1ec3u t\u1ea1i sao kh\u00e1ch h\u00e0ng k\u00eau web ch\u1eadm.<\/p>\n<p>V\u1edbi <strong>Netdata<\/strong>, bi\u1ec3u \u0111\u1ed3 s\u1ebd hi\u1ec3n th\u1ecb m\u1ed9t \u0111\u01b0\u1eddng d\u1ef1ng \u0111\u1ee9ng ngay t\u1ea1i gi\u00e2y th\u1ee9 5 \u0111\u00f3. B\u1ea1n b\u1eaft \u0111\u01b0\u1ee3c ngay &#8220;th\u1ee7 ph\u1ea1m&#8221; v\u00e0 c\u00f3 h\u01b0\u1edbng x\u1eed l\u00fd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nhe-phu-hop-VPS-cau-hinh-thap\"><\/span>Nh\u1eb9, ph\u00f9 h\u1ee3p VPS c\u1ea5u h\u00ecnh th\u1ea5p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t VPS 1 Core &#8211; 1GB RAM t\u1ea1i InterData ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ch\u1ea1y m\u01b0\u1ee3t m\u00e0 Web Server (Nginx\/Apache), Database (MariaDB) v\u00e0 c\u1ea3 Netdata.<br \/>\nNh\u1edd ki\u1ebfn tr\u00fac vi\u1ebft b\u1eb1ng C v\u00e0 kh\u00f4ng s\u1eed d\u1ee5ng Java hay .NET runtime n\u1eb7ng n\u1ec1, Netdata gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a <strong>overhead<\/strong> (chi ph\u00ed t\u00e0i nguy\u00ean v\u1eadn h\u00e0nh). S\u1ed1 li\u1ec7u th\u1ef1c t\u1ebf cho th\u1ea5y Netdata ch\u1ec9 ti\u00eau t\u1ed1n:<\/p>\n<ul>\n<li><strong>CPU:<\/strong> &lt; 1% \u1edf ch\u1ebf \u0111\u1ed9 n\u1ec1n.<\/li>\n<li><strong>RAM:<\/strong> ~50MB &#8211; 80MB cho database engine m\u1eb7c \u0111\u1ecbnh.<\/li>\n<li><strong>Disk I\/O:<\/strong> G\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u00ec ghi log r\u1ea5t t\u1ed1i \u01b0u.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u n\u00e0y x\u00f3a tan n\u1ed7i lo &#8220;c\u00e0i tool monitoring xong server ch\u1ea1y ch\u1eadm h\u01a1n c\u1ea3 l\u00fac ch\u01b0a c\u00e0i&#8221;.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cai-dat-nhanh-it-cau-hinh\"><\/span>C\u00e0i \u0111\u1eb7t nhanh, \u00edt c\u1ea5u h\u00ecnh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ng\u01b0\u1eddi d\u00f9ng VPS th\u01b0\u1eddng mu\u1ed1n t\u1eadp trung v\u00e0o vi\u1ec7c ph\u00e1t tri\u1ec3n website ho\u1eb7c \u1ee9ng d\u1ee5ng kinh doanh h\u01a1n l\u00e0 t\u1ed1n h\u00e0ng gi\u1edd \u0111\u1ec3 c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t. Netdata cung c\u1ea5p script c\u00e0i \u0111\u1eb7t t\u1ef1 \u0111\u1ed9ng (One-line install script). Ch\u1ec9 v\u1edbi m\u1ed9t c\u00e2u l\u1ec7nh copy-paste v\u00e0o Terminal, to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh t\u1ea3i v\u1ec1, bi\u00ean d\u1ecbch, c\u00e0i \u0111\u1eb7t v\u00e0 kh\u1edfi \u0111\u1ed9ng d\u1ecbch v\u1ee5 s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ef1 \u0111\u1ed9ng trong v\u00f2ng v\u00e0i ph\u00fat.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Huong-dan-cai-dat-Netdata-tren-Server-chi-tiet\"><\/span>H\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t Netdata tr\u00ean Server chi ti\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1-Chuan-bi-moi-truong-he-thong-truoc-khi-cai-Netdata\"><\/span><strong>1. Chu\u1ea9n b\u1ecb m\u00f4i tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi c\u00e0i Netdata<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh c\u00e0i \u0111\u1eb7t Netdata, b\u1ea1n c\u1ea7n c\u00e0i s\u1eb5n m\u1ed9t s\u1ed1 package h\u1ec7 th\u1ed1ng b\u1eaft bu\u1ed9c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh build v\u00e0 ch\u1ea1y Netdata di\u1ec5n ra \u1ed5n \u0111\u1ecbnh.<\/p>\n<p><strong>\u0110\u1ed1i v\u1edbi Debian \/ Ubuntu<\/strong><\/p>\n<pre>apt-get install zlib1g-dev uuid-dev libmnl-dev gcc make git autoconf autogen automake pkg-config\r\n\r\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-38100\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-Ubuntu-18-voi-server-VPS.jpg\" alt=\"Test tr\u00ean OS Ubuntu 18 v\u1edbi server VPS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-Ubuntu-18-voi-server-VPS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-Ubuntu-18-voi-server-VPS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-Ubuntu-18-voi-server-VPS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/pre>\n<p><strong>\u0110\u1ed1i v\u1edbi Centos \/ Redhat \/ Fedora<\/strong><\/p>\n<pre>yum install zlib-devel libuuid-devel libmnl-devel gcc make git autoconf autogen automake pkgconfig\r\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-38101\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-CentOS-7-voi-server-VPS.jpg\" alt=\"Test tr\u00ean OS CentOS 7 v\u1edbi server VPS\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-CentOS-7-voi-server-VPS.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-CentOS-7-voi-server-VPS-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Test-tren-OS-CentOS-7-voi-server-VPS-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"2-Cac-buoc-cai-dat-Netdata-tu-ma-nguon\"><\/span>2. C\u00e1c b\u01b0\u1edbc c\u00e0i \u0111\u1eb7t Netdata t\u1eeb m\u00e3 ngu\u1ed3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sau khi chu\u1ea9n b\u1ecb xong m\u00f4i tr\u01b0\u1eddng, b\u1ea1n ti\u1ebfn h\u00e0nh clone repository Netdata t\u1eeb GitHub v\u1ec1 th\u01b0 m\u1ee5c \/root v\u00e0 ch\u1ea1y script c\u00e0i \u0111\u1eb7t.<\/p>\n<pre>cd \/root\/\r\ngit clone https:\/\/github.com\/firehol\/netdata.git --depth=1\r\ncd netdata\r\n.\/netdata-installer.sh<\/pre>\n<p>Khi qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t ho\u00e0n t\u1ea5t, Netdata s\u1ebd t\u1ef1 \u0111\u1ed9ng kh\u1edfi ch\u1ea1y. N\u1ebfu kh\u00f4ng g\u1eb7p l\u1ed7i, b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp ngay v\u00e0o giao di\u1ec7n qu\u1ea3n l\u00fd th\u00f4ng qua \u0111\u1ecba ch\u1ec9: <strong>http:\/\/ip_address:19999<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-38099\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Theo-doi-tinh-trang-he-thong-truc-tiep-tu-may-chu-qua-dia-chi-web-1024x641.png\" alt=\"Theo d\u00f5i t\u00ecnh tr\u1ea1ng h\u1ec7 th\u1ed1ng tr\u1ef1c ti\u1ebfp t\u1eeb m\u00e1y ch\u1ee7 qua \u0111\u1ecba ch\u1ec9 web\" width=\"1020\" height=\"638\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Theo-doi-tinh-trang-he-thong-truc-tiep-tu-may-chu-qua-dia-chi-web-1024x641.png 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Theo-doi-tinh-trang-he-thong-truc-tiep-tu-may-chu-qua-dia-chi-web-300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Theo-doi-tinh-trang-he-thong-truc-tiep-tu-may-chu-qua-dia-chi-web-768x481.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/01\/Theo-doi-tinh-trang-he-thong-truc-tiep-tu-may-chu-qua-dia-chi-web.png 1200w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<p>Trong \u0111\u00f3, port 19999 l\u00e0 port m\u1eb7c \u0111\u1ecbnh c\u1ee7a Netdata. Tr\u01b0\u1eddng h\u1ee3p c\u1ea7n thay \u0111\u1ed5i port, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9nh s\u1eeda b\u1eb1ng c\u00e1ch b\u1ecf comment v\u00e0 c\u1ea5u h\u00ecnh l\u1ea1i trong file:<\/p>\n<pre>\u00a0\/etc\/netdata\/netdata.conf<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"3-Mo-port-Netdata-neu-khong-truy-cap-duoc-Dashboard\"><\/span>3. M\u1edf port Netdata n\u1ebfu kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c Dashboard<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu kh\u00f4ng th\u1ec3 truy c\u1eadp giao di\u1ec7n Netdata, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 do port 19999 ch\u01b0a \u0111\u01b0\u1ee3c m\u1edf tr\u00ean firewall. Khi \u0111\u00f3, b\u1ea1n c\u1ea7n kh\u1edfi \u0111\u1ed9ng iptables v\u00e0 cho ph\u00e9p truy c\u1eadp port n\u00e0y.<\/p>\n<pre>service iptables start\r\niptables -I INPUT -p tcp --dport 19999 -j ACCEPT\r\nservice iptables save\r\nservice iptables restart<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"4-Thiet-lap-Netdata-tu-khoi-dong-khi-reboot\"><\/span>4. Thi\u1ebft l\u1eadp Netdata t\u1ef1 kh\u1edfi \u0111\u1ed9ng khi reboot<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 c\u00f4ng c\u1ee5 Netdata t\u1ef1 \u0111\u1ed9ng ch\u1ea1y l\u1ea1i sau m\u1ed7i l\u1ea7n reboot server, b\u1ea1n th\u00eam l\u1ec7nh kh\u1edfi ch\u1ea1y v\u00e0o file rc.local:<\/p>\n<pre> echo \"\/usr\/sbin\/netdata\" &gt;&gt; \/etc\/rc.local<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"5-Cach-chay-dung-Netdata-thu-cong\"><\/span>5. C\u00e1ch ch\u1ea1y, d\u1eebng Netdata th\u1ee7 c\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ngo\u00e0i ch\u1ebf \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 kh\u1edfi ch\u1ea1y Netdata th\u1ee7 c\u00f4ng b\u1eb1ng l\u1ec7nh:<\/p>\n<pre>\u00a0\/usr\/sbin\/netdata<\/pre>\n<p>Trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n d\u1eebng Netdata, h\u00e3y s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 killall:<\/p>\n<pre> killall netdata<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"6-Cach-cap-nhat-Netdata-len-phien-ban-moi\"><\/span>6. C\u00e1ch c\u1eadp nh\u1eadt Netdata l\u00ean phi\u00ean b\u1ea3n m\u1edbi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, khi c\u00f3 phi\u00ean b\u1ea3n Netdata m\u1edbi, h\u1ec7 th\u1ed1ng s\u1ebd th\u00f4ng b\u00e1o tr\u1ef1c ti\u1ebfp trong tab Update tr\u00ean Dashboard.<\/p>\n<p>Khi \u0111\u00f3, b\u1ea1n ch\u1ec9 c\u1ea7n truy c\u1eadp l\u1ea1i v\u00e0o th\u01b0 m\u1ee5c \u0111\u00e3 clone Netdata tr\u01b0\u1edbc \u0111\u00f3 v\u00e0 th\u1ef1c hi\u1ec7n c\u1eadp nh\u1eadt:<\/p>\n<pre>cd \/root\/netdata\/\r\ngit pull\r\n.\/netdata-installer.sh<\/pre>\n<p>Script c\u00e0i \u0111\u1eb7t s\u1ebd t\u1ef1 \u0111\u1ed9ng n\u00e2ng c\u1ea5p v\u00e0 restart Netdata sau khi ho\u00e0n t\u1ea5t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Luu-y-khi-dung-Netdata-trong-moi-truong-Production\"><\/span>L\u01b0u \u00fd khi d\u00f9ng Netdata trong m\u00f4i tr\u01b0\u1eddng Production<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u00f9 Netdata r\u1ea5t d\u1ec5 d\u00f9ng, nh\u01b0ng khi tri\u1ec3n khai tr\u00ean m\u00f4i tr\u01b0\u1eddng Production (m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf), b\u1ea1n c\u1ea7n l\u01b0u \u00fd \u0111\u1eb7c bi\u1ec7t \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt v\u00e0 c\u1ea3nh b\u00e1o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n d\u1eef li\u1ec7u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bao-mat-dashboard\"><\/span>B\u1ea3o m\u1eadt dashboard<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1eb7c \u0111\u1ecbnh, Netdata Dashboard kh\u00f4ng c\u00f3 m\u1eadt kh\u1ea9u. N\u1ebfu b\u1ea1n m\u1edf port 19999 ra Internet, b\u1ea5t k\u1ef3 ai bi\u1ebft IP c\u1ee7a b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 v\u00e0o xem th\u00f4ng tin h\u1ec7 th\u1ed1ng. D\u00f9 h\u1ecd kh\u00f4ng th\u1ec3 ch\u1ec9nh s\u1eeda server, nh\u01b0ng vi\u1ec7c l\u1ed9 th\u00f4ng tin h\u1ea1 t\u1ea7ng (phi\u00ean b\u1ea3n Kernel, t\u00ean \u1ee9ng d\u1ee5ng&#8230;) l\u00e0 r\u1ee7i ro l\u1edbn.<\/p>\n<p><strong>Gi\u1ea3i ph\u00e1p:<\/strong><\/p>\n<ol>\n<li><strong>Gi\u1edbi h\u1ea1n IP:<\/strong> Ch\u1ec9 cho ph\u00e9p IP t\u0129nh c\u1ee7a c\u00f4ng ty ho\u1eb7c VPN truy c\u1eadp v\u00e0o port 19999.<\/li>\n<li><strong>S\u1eed d\u1ee5ng Reverse Proxy (Nginx\/Apache):<\/strong> C\u1ea5u h\u00ecnh Nginx \u0111\u1ee9ng tr\u01b0\u1edbc Netdata v\u00e0 y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp (Basic Auth) tr\u01b0\u1edbc khi cho ph\u00e9p xem Dashboard.<\/li>\n<li><strong>Netdata Cloud:<\/strong> K\u1ebft n\u1ed1i VPS v\u1edbi t\u00e0i kho\u1ea3n Netdata Cloud mi\u1ec5n ph\u00ed \u0111\u1ec3 xem qua giao di\u1ec7n web c\u1ee7a h\u00e3ng, kh\u00f4ng c\u1ea7n m\u1edf port 19999 tr\u1ef1c ti\u1ebfp.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Ket-hop-alert-Canh-bao\"><\/span>K\u1ebft h\u1ee3p alert (C\u1ea3nh b\u00e1o)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u00e1m s\u00e1t m\u00e0 kh\u00f4ng c\u00f3 c\u1ea3nh b\u00e1o th\u00ec b\u1ea1n v\u1eabn ph\u1ea3i &#8220;canh&#8221; m\u00e0n h\u00ecnh 24\/7. Netdata c\u00f3 h\u1ec7 th\u1ed1ng <strong>Netdata alert<\/strong> r\u1ea5t m\u1ea1nh m\u1ebd.<br \/>\nB\u1ea1n n\u00ean c\u1ea5u h\u00ecnh \u0111\u1ec3 Netdata g\u1eedi th\u00f4ng b\u00e1o khi c\u00f3 s\u1ef1 c\u1ed1 (V\u00ed d\u1ee5: RAM &gt; 90%, \u1ed4 c\u1ee9ng \u0111\u1ea7y, Web server ch\u1ebft).<\/p>\n<ul>\n<li><strong>Email:<\/strong> C\u1ea5u h\u00ecnh SMTP \u0111\u1ec3 nh\u1eadn mail c\u1ea3nh b\u00e1o.<\/li>\n<li><strong>Telegram\/Slack:<\/strong> \u0110\u00e2y l\u00e0 c\u00e1ch ph\u1ed5 bi\u1ebfn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam. B\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o m\u1ed9t con Bot Telegram, l\u1ea5y Chat ID v\u00e0 c\u1ea5u h\u00ecnh v\u00e0o file health_alarm_notify.conf c\u1ee7a Netdata. Ngay khi server c\u00f3 bi\u1ebfn, \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n s\u1ebd rung l\u00ean l\u1eadp t\u1ee9c.<\/li>\n<\/ul>\n<div>\n<div>N\u1ebfu b\u1ea1n c\u1ea3m th\u1ea5y vi\u1ec7c c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt qu\u00e1 ph\u1ee9c t\u1ea1p, \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt t\u1ea1i <strong>InterData<\/strong> lu\u00f4n s\u1eb5n s\u00e0ng t\u01b0 v\u1ea5n v\u00e0 h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng th\u1ef1c hi\u1ec7n c\u00e1c c\u1ea5u h\u00ecnh c\u01a1 b\u1ea3n n\u00e0y khi thu\u00ea VPS.<\/div>\n<\/div>\n<div class=\"highlight-cta-box\">\u0110\u1ec3 Netdata ph\u00e1t huy t\u1ed1i \u0111a hi\u1ec7u qu\u1ea3 gi\u00e1m s\u00e1t realtime, n\u1ec1n t\u1ea3ng VPS c\u1ea7n c\u00f3 <strong>hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh<\/strong>,<strong> t\u00e0i nguy\u00ean th\u1ef1c v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/strong>. <strong>VPS t\u1ed1c \u0111\u1ed9 cao t\u1ea1i InterData<\/strong> \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho m\u00f4i tr\u01b0\u1eddng Linux, s\u1eed d\u1ee5ng <strong>SSD NVMe<\/strong>, <strong>CPU hi\u1ec7u n\u0103ng cao th\u1ebf h\u1ec7 m\u1edbi nh\u1ea5t<\/strong> v\u00e0 <strong>b\u0103ng th\u00f4ng \u1ed5n \u0111\u1ecbnh<\/strong>, gi\u00fap c\u00e1c ch\u1ec9 s\u1ed1 CPU, RAM, Disk, Network \u0111\u01b0\u1ee3c ghi nh\u1eadn ch\u00ednh x\u00e1c theo th\u1eddi gian th\u1ef1c. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho c\u00e1 nh\u00e2n, doanh nghi\u1ec7p v\u00e0 \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ea7n v\u1eadn h\u00e0nh VPS \u1ed5n \u0111\u1ecbnh, d\u1ec5 theo d\u00f5i v\u00e0 ch\u1ee7 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n s\u1edbm v\u1ea5n \u0111\u1ec1 h\u1ec7 th\u1ed1ng.<br \/>\n<a href=\"https:\/\/interdata.vn\/thue-vps\/\" class=\"button primary is-primary is-medium\"  >\n\t\t<span>THAM KH\u1ea2O B\u1ea2NG GI\u00c1 VPS C\u1ea4U H\u00ccNH M\u1ea0NH<\/span>\n\t<\/a>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Cau-hoi-thuong-gap-FAQs\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u1eafc m\u1eafc ph\u1ed5 bi\u1ebfn c\u1ee7a ng\u01b0\u1eddi d\u00f9ng khi m\u1edbi b\u1eaft \u0111\u1ea7u ti\u1ebfp c\u1eadn <strong>Netdata monitoring<\/strong>:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Netdata-co-lam-cham-VPS-khong\"><\/span>1. Netdata c\u00f3 l\u00e0m ch\u1eadm VPS kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>R\u1ea5t hi\u1ebfm khi. Nh\u01b0 \u0111\u00e3 ph\u00e2n t\u00edch \u1edf ph\u1ea7n &#8220;Ti\u00eau t\u1ed1n \u00edt t\u00e0i nguy\u00ean&#8221;, Netdata \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ea1y n\u1ec1n v\u1edbi m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean th\u1ea5p (nice level). N\u1ebfu h\u1ec7 th\u1ed1ng qu\u00e1 t\u1ea3i, Netdata s\u1ebd t\u1ef1 \u0111\u1ed9ng gi\u1ea3m b\u1edbt vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u \u0111\u1ec3 nh\u01b0\u1eddng t\u00e0i nguy\u00ean cho \u1ee9ng d\u1ee5ng ch\u00ednh. M\u1ee9c ti\u00eau th\u1ee5 CPU th\u01b0\u1eddng xuy\u00ean duy tr\u00ec d\u01b0\u1edbi 1%.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Netdata-luu-du-lieu-trong-bao-lau\"><\/span>2. Netdata l\u01b0u d\u1eef li\u1ec7u trong bao l\u00e2u?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1eb7c \u0111\u1ecbnh, Netdata l\u01b0u d\u1eef li\u1ec7u trong b\u1ed9 nh\u1edb RAM v\u00e0 Cache \u0111\u0129a c\u1ee9ng v\u1edbi th\u1eddi gian l\u01b0u tr\u1eef kh\u00e1 ng\u1eafn (th\u01b0\u1eddng l\u00e0 1-3 ng\u00e0y t\u00f9y c\u1ea5u h\u00ecnh RAM). Tuy nhi\u00ean, phi\u00ean b\u1ea3n m\u1edbi s\u1eed d\u1ee5ng engine l\u01b0u tr\u1eef <strong>dbengine<\/strong>, cho ph\u00e9p n\u00e9n v\u00e0 l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u1ecbch s\u1eed l\u00e2u h\u01a1n tr\u00ean \u0111\u0129a c\u1ee9ng m\u00e0 kh\u00f4ng t\u1ed1n nhi\u1ec1u dung l\u01b0\u1ee3ng. B\u1ea1n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh \u0111\u1ec3 l\u01b0u t\u1edbi 1 th\u00e1ng n\u1ebfu mu\u1ed1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-Lam-sao-de-bao-mat-Netdata-Dashboard\"><\/span>3. L\u00e0m sao \u0111\u1ec3 b\u1ea3o m\u1eadt Netdata Dashboard?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 kh\u00f4ng expose (m\u1edf) port 19999 ra internet c\u00f4ng c\u1ed9ng. H\u00e3y s\u1eed d\u1ee5ng VPN \u0111\u1ec3 k\u1ebft n\u1ed1i v\u00e0o m\u1ea1ng n\u1ed9i b\u1ed9 xem, ho\u1eb7c s\u1eed d\u1ee5ng t\u00ednh n\u0103ng Netdata Cloud (Claim node) \u0111\u1ec3 xem dashboard qua li\u00ean k\u1ebft b\u1ea3o m\u1eadt c\u1ee7a h\u00e3ng Netdata (\u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a qua TLS)\/<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ket-luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Netdata th\u1ef1c s\u1ef1 l\u00e0 m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng nh\u1ecf trong m\u1ea3ng gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng d\u00e0nh cho c\u00e1 nh\u00e2n v\u00e0 doanh nghi\u1ec7p v\u1eeba v\u00e0 nh\u1ecf. V\u1edbi kh\u1ea3 n\u0103ng <strong>gi\u00e1m s\u00e1t VPS<\/strong> theo th\u1eddi gian th\u1ef1c, giao di\u1ec7n \u0111\u1eb9p m\u1eaft, mi\u1ec5n ph\u00ed v\u00e0 c\u1ef1c k\u1ef3 nh\u1eb9, \u0111\u00e2y x\u1ee9ng \u0111\u00e1ng l\u00e0 c\u00f4ng c\u1ee5 &#8220;must-have&#8221; (ph\u1ea3i c\u00f3) tr\u00ean m\u1ecdi m\u00e1y ch\u1ee7 Linux.<\/p>\n<p>Vi\u1ec7c n\u1eafm b\u1eaft th\u00f4ng tin s\u1ee9c kh\u1ecfe server t\u1eebng gi\u00e2y kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n ng\u1ee7 ngon h\u01a1n m\u00e0 c\u00f2n \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m t\u1ed1t nh\u1ea5t cho kh\u00e1ch h\u00e0ng truy c\u1eadp website c\u1ee7a b\u1ea1n. Hy v\u1ecdng qua b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 <strong>Netdata l\u00e0 g\u00ec<\/strong> v\u00e0 t\u1ef1 tin tri\u1ec3n khai n\u00f3 cho h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n<p>H\u00e3y th\u1eed c\u00e0i \u0111\u1eb7t c\u00f4ng c\u1ee5 Netdata ngay h\u00f4m nay tr\u00ean VPS InterData v\u00e0 c\u1ea3m nh\u1eadn s\u1ef1 kh\u00e1c bi\u1ec7t. N\u1ebfu g\u1eb7p b\u1ea5t k\u1ef3 kh\u00f3 kh\u0103n n\u00e0o trong qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t, \u0111\u1eebng ng\u1ea7n ng\u1ea1i \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn ho\u1eb7c li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 h\u1ed7 tr\u1ee3 c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea1n \u0111ang qu\u1ea3n l\u00fd m\u1ed9t h\u1ec7 th\u1ed1ng VPS nh\u01b0ng th\u01b0\u1eddng xuy\u00ean g\u1eb7p t\u00ecnh tr\u1ea1ng website t\u1ea3i ch\u1eadm, server b\u1ecb treo ho\u1eb7c CPU t\u0103ng \u0111\u1ed9t bi\u1ebfn m\u00e0 kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n? C\u00e1c gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng y\u00eau c\u1ea7u chi ph\u00ed cao ho\u1eb7c quy tr\u00ecnh c\u00e0i \u0111\u1eb7t ph\u1ee9c t\u1ea1p, g\u00e2y kh\u00f3 kh\u0103n cho ng\u01b0\u1eddi<\/p>\n","protected":false},"author":11,"featured_media":38105,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[],"class_list":["post-38087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-cu-phan-mem"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/38087","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=38087"}],"version-history":[{"count":5,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/38087\/revisions"}],"predecessor-version":[{"id":38109,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/38087\/revisions\/38109"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/38105"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=38087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=38087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=38087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}