{"id":17668,"date":"2024-11-29T11:45:54","date_gmt":"2024-11-29T04:45:54","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=17668"},"modified":"2025-07-20T15:13:40","modified_gmt":"2025-07-20T08:13:40","slug":"bao-mat-vps","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/bao-mat-vps\/","title":{"rendered":"T\u1ed5ng h\u1ee3p 13 c\u00e1ch b\u1ea3o m\u1eadt VPS hi\u1ec7u qu\u1ea3 nh\u1ea5t hi\u1ec7n nay"},"content":{"rendered":"<p><a href=\"https:\/\/interdata.vn\/blog\/vps-la-gi\/\">VPS<\/a> mang \u0111\u1ebfn nhi\u1ec1u l\u1ee3i \u00edch cho ng\u01b0\u1eddi d\u00f9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c doanh nghi\u1ec7p v\u1eeba v\u00e0 nh\u1ecf, c\u00e1 nh\u00e2n c\u1ea7n l\u01b0u tr\u1eef d\u1eef li\u1ec7u v\u00e0 ch\u1ea1y c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/web-application-la-gi\/\">\u1ee9ng d\u1ee5ng web<\/a> v\u1edbi chi ph\u00ed h\u1ee3p l\u00fd. Tuy nhi\u00ean, song song v\u1edbi nh\u1eefng l\u1ee3i \u00edch \u0111\u00f3, v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt m\u00e1y ch\u1ee7 \u1ea3o c\u0169ng l\u00e0 m\u1ed9t m\u1ed1i quan ng\u1ea1i \u0111\u00e1ng k\u1ec3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p cho b\u1ea1n t\u1ed5ng h\u1ee3p <strong>13 c\u00e1ch b\u1ea3o m\u1eadt VPS hi\u1ec7u qu\u1ea3 nh\u1ea5t hi\u1ec7n nay<\/strong>, gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u quan tr\u1ecdng v\u00e0 tr\u00e1nh kh\u1ecfi c\u00e1c r\u1ee7i ro t\u1ea5n c\u00f4ng m\u1ea1ng.<\/p>\n<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\/bao-mat-vps\/#Tai-sao-bao-mat-VPS-la-can-thiet\" >T\u1ea1i sao b\u1ea3o m\u1eadt VPS l\u00e0 c\u1ea7n thi\u1ebft?<\/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\/bao-mat-vps\/#Nhung-moi-de-doa-bao-mat-thuong-gap-doi-voi-VPS\" >Nh\u1eefng m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt th\u01b0\u1eddng g\u1eb7p \u0111\u1ed1i v\u1edbi VPS<\/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\/bao-mat-vps\/#Tan-cong-Brute-Force\" >T\u1ea5n c\u00f4ng Brute Force<\/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\/bao-mat-vps\/#Tan-cong-DDoS\" >T\u1ea5n c\u00f4ng DDoS<\/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\/bao-mat-vps\/#Malware-Ransomware\" >Malware &amp; Ransomware<\/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\/bao-mat-vps\/#Lo-hong-Zero-Day\" >L\u1ed7 h\u1ed5ng Zero-Day<\/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\/bao-mat-vps\/#13-cach-bao-mat-VPS-toan-dien-va-hieu-qua-nhat\" >13 c\u00e1ch b\u1ea3o m\u1eadt VPS to\u00e0n di\u1ec7n v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t<\/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\/bao-mat-vps\/#1-Su-dung-xac-thuc-da-yeu-to-MFA\" >1. S\u1eed d\u1ee5ng x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 (MFA)<\/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\/bao-mat-vps\/#2-Thiet-lap-mat-khau-SSH-manh\" >2. Thi\u1ebft l\u1eadp m\u1eadt kh\u1ea9u SSH m\u1ea1nh<\/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\/bao-mat-vps\/#3-Cai-dat-phan-mem-Antivirus-va-Malware-cho-VPS\" >3. C\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m Antivirus v\u00e0 Malware cho VPS<\/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\/bao-mat-vps\/#4-Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall\" >4. B\u1ea3o m\u1eadt VPS b\u1eb1ng c\u00e1ch c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda (Firewall)<\/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\/bao-mat-vps\/#5-Chan-IP-quoc-te\" >5. Ch\u1eb7n IP qu\u1ed1c t\u1ebf<\/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\/bao-mat-vps\/#6-Thuc-hien-backupsao-luu-du-lieu-lien-tuc\" >6. Th\u1ef1c hi\u1ec7n backup\/sao l\u01b0u d\u1eef li\u1ec7u li\u00ean t\u1ee5c<\/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\/bao-mat-vps\/#7-Cap-nhat-Windows-va-phan-mem-thuong-xuyen\" >7. C\u1eadp nh\u1eadt Windows v\u00e0 ph\u1ea7n m\u1ec1m th\u01b0\u1eddng xuy\u00ean<\/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\/bao-mat-vps\/#8-Quan-ly-nhat-ky-he-thong\" >8. Qu\u1ea3n l\u00fd nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng<\/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\/bao-mat-vps\/#9-Cai-dat-cac-phan-mem-diet-Malware\" >9. C\u00e0i \u0111\u1eb7t c\u00e1c ph\u1ea7n m\u1ec1m di\u1ec7t Malware<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/bao-mat-vps\/#10-Su-dung-cong-cu-phat-hien-Brute-Force\" >10. S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n Brute Force<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/bao-mat-vps\/#11-Bao-mat-VPS-bang-cach-dung-chung-chi-SSL\" >11. B\u1ea3o m\u1eadt VPS b\u1eb1ng c\u00e1ch d\u00f9ng ch\u1ee9ng ch\u1ec9 SSL<\/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\/bao-mat-vps\/#12-Quan-ly-quyen-truy-cap-nguoi-dung-tren-VPS\" >12. Qu\u1ea3n l\u00fd quy\u1ec1n truy c\u1eadp ng\u01b0\u1eddi d\u00f9ng tr\u00ean VPS<\/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\/bao-mat-vps\/#13-Lua-chon-nha-cung-cap-dich-vu-VPS-chat-luong\" >13. L\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 VPS ch\u1ea5t l\u01b0\u1ee3ng<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Tai-sao-bao-mat-VPS-la-can-thiet\"><\/span>T\u1ea1i sao b\u1ea3o m\u1eadt VPS l\u00e0 c\u1ea7n thi\u1ebft?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c b\u1ea3o m\u1eadt VPS \u0111\u00f3ng vai tr\u00f2 r\u1ea5t quan tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi nh\u1eefng h\u1ec7 th\u1ed1ng ch\u1ee9a th\u00f4ng tin nh\u1ea1y c\u1ea3m ho\u1eb7c \u0111i\u1ec1u h\u00e0nh c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh doanh tr\u1ef1c tuy\u1ebfn. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c l\u00fd do ch\u00ednh t\u1ea1i sao b\u1ea3o m\u1eadt VPS l\u00e0 c\u1ea7n thi\u1ebft:<\/p>\n<ul>\n<li><strong>B\u1ea3o v\u1ec7 d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng<\/strong>: VPS c\u00f3 th\u1ec3 l\u01b0u tr\u1eef th\u00f4ng tin kh\u00e1ch h\u00e0ng, giao d\u1ecbch, v\u00e0 c\u00e1c t\u00e0i li\u1ec7u quan tr\u1ecdng. N\u1ebfu b\u1ecb t\u1ea5n c\u00f4ng, d\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 b\u1ecb \u0111\u00e1nh c\u1eafp ho\u1eb7c b\u1ecb s\u1eed d\u1ee5ng cho c\u00e1c m\u1ee5c \u0111\u00edch x\u1ea5u.<\/li>\n<li><strong>Tr\u00e1nh gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5<\/strong>: C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/\">DDoS<\/a> ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/tan-cong-brute-force-la-gi\/\">Brute Force<\/a> c\u00f3 th\u1ec3 l\u00e0m ng\u1eebng ho\u1ea1t \u0111\u1ed9ng h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n, g\u00e2y m\u1ea5t m\u00e1t doanh thu v\u00e0 t\u1ed5n h\u1ea1i \u0111\u1ebfn uy t\u00edn c\u1ee7a doanh nghi\u1ec7p.<\/li>\n<li><strong>Ng\u0103n ch\u1eb7n virus v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/malware-la-gi\/\">malware<\/a><\/strong>: C\u00e1c ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i nh\u01b0 malware, virus, v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/ransomware-la-gi\/\">ransomware<\/a> c\u00f3 th\u1ec3 l\u00e2y nhi\u1ec5m h\u1ec7 th\u1ed1ng v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/ma-hoa-du-lieu-data-encryption\/\">m\u00e3 h\u00f3a d\u1eef li\u1ec7u<\/a> c\u1ee7a b\u1ea1n, g\u00e2y thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng cho c\u1ea3 ng\u01b0\u1eddi d\u00f9ng l\u1eabn doanh nghi\u1ec7p.<\/li>\n<li><strong>Duy tr\u00ec t\u00ednh \u1ed5n \u0111\u1ecbnh<\/strong>: M\u1ed9t VPS \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt t\u1ed1t s\u1ebd gi\u00fap \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, duy tr\u00ec t\u1ed1c \u0111\u1ed9 truy c\u1eadp v\u00e0 s\u1ef1 an to\u00e0n trong su\u1ed1t qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh.<\/li>\n<\/ul>\n<figure id=\"attachment_17949\" aria-describedby=\"caption-attachment-17949\" style=\"width: 960px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tai-sao-bao-mat-VPS-la-can-thiet.png\" alt=\"T\u1ea1i sao b\u1ea3o m\u1eadt VPS l\u00e0 c\u1ea7n thi\u1ebft\" width=\"960\" height=\"540\" class=\"size-full wp-image-17949\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tai-sao-bao-mat-VPS-la-can-thiet.png 960w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tai-sao-bao-mat-VPS-la-can-thiet-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tai-sao-bao-mat-VPS-la-can-thiet-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tai-sao-bao-mat-VPS-la-can-thiet-750x422.png 750w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption id=\"caption-attachment-17949\" class=\"wp-caption-text\">T\u1ea1i sao b\u1ea3o m\u1eadt VPS l\u00e0 c\u1ea7n thi\u1ebft?<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Nhung-moi-de-doa-bao-mat-thuong-gap-doi-voi-VPS\"><\/span>Nh\u1eefng m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt th\u01b0\u1eddng g\u1eb7p \u0111\u1ed1i v\u1edbi VPS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec7n nay, c\u00f3 r\u1ea5t nhi\u1ec1u h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng m\u1ea1ng v\u00e0 m\u1ed1i \u0111e d\u1ecda m\u00e0 c\u00e1c hacker th\u01b0\u1eddng nh\u1eafm \u0111\u1ebfn khi khai th\u00e1c m\u1ed9t VPS kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt t\u1ed1t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ed1i v\u1edbi VPS:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-Brute-Force\"><\/span>T\u1ea5n c\u00f4ng Brute Force<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u1ea5n c\u00f4ng Brute Force l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p m\u00e0 hacker c\u1ed1 g\u1eafng d\u00f2 m\u1eadt kh\u1ea9u c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch th\u1eed m\u1ecdi t\u1ed5 h\u1ee3p k\u00fd t\u1ef1 c\u00f3 th\u1ec3. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t nguy hi\u1ec3m n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u y\u1ebfu ho\u1eb7c m\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh cho VPS c\u1ee7a m\u00ecnh. Khi hacker t\u00ecm ra m\u1eadt kh\u1ea9u, h\u1ecd c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng truy c\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng v\u00e0 g\u00e2y thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng.<\/p>\n<figure id=\"attachment_17950\" aria-describedby=\"caption-attachment-17950\" style=\"width: 960px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tan-cong-Brute-Force.png\" alt=\"T\u1ea5n c\u00f4ng Brute Force\" width=\"960\" height=\"540\" class=\"size-full wp-image-17950\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tan-cong-Brute-Force.png 960w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tan-cong-Brute-Force-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tan-cong-Brute-Force-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Tan-cong-Brute-Force-750x422.png 750w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption id=\"caption-attachment-17950\" class=\"wp-caption-text\">T\u1ea5n c\u00f4ng Brute Force<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-DDoS\"><\/span>T\u1ea5n c\u00f4ng DDoS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/\">DDoS<\/a> (Distributed Denial of Service) l\u00e0 lo\u1ea1i t\u1ea5n c\u00f4ng m\u1ea1ng m\u00e0 hacker s\u1eed d\u1ee5ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn c\u00e1c thi\u1ebft b\u1ecb t\u1ea5n c\u00f4ng v\u00e0o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n \u0111\u1ed3ng th\u1eddi, t\u1ea1o ra l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp kh\u1ed5ng l\u1ed3 v\u00e0 l\u00e0m cho VPS b\u1ecb qu\u00e1 t\u1ea3i, kh\u00f4ng th\u1ec3 ph\u1ee5c v\u1ee5 c\u00e1c y\u00eau c\u1ea7u h\u1ee3p l\u1ec7 t\u1eeb ng\u01b0\u1eddi d\u00f9ng. M\u1ee5c ti\u00eau c\u1ee7a DDoS l\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5, g\u00e2y thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng v\u1ec1 th\u1eddi gian v\u00e0 t\u00e0i nguy\u00ean.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Malware-Ransomware\"><\/span><a href=\"https:\/\/www.techtarget.com\/whatis\/feature\/Malware-vs-ransomware-Whats-the-difference\" rel=\"nofollow noopener\" target=\"_blank\">Malware &amp; Ransomware<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Malware l\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u00e2m nh\u1eadp v\u00e0 ph\u00e1 ho\u1ea1i h\u1ec7 th\u1ed1ng. Ransomware l\u00e0 m\u1ed9t lo\u1ea1i malware \u0111\u1eb7c bi\u1ec7t, n\u00f3 m\u00e3 h\u00f3a d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n v\u00e0 y\u00eau c\u1ea7u ti\u1ec1n chu\u1ed9c \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1ea1i. Nh\u1eefng cu\u1ed9c t\u1ea5n c\u00f4ng ransomware th\u01b0\u1eddng nh\u1eafm \u0111\u1ebfn nh\u1eefng d\u1eef li\u1ec7u quan tr\u1ecdng, g\u00e2y \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng kinh doanh n\u1ebfu kh\u00f4ng c\u00f3 gi\u1ea3i ph\u00e1p sao l\u01b0u v\u00e0 b\u1ea3o m\u1eadt hi\u1ec7u qu\u1ea3.<\/p>\n<figure id=\"attachment_17951\" aria-describedby=\"caption-attachment-17951\" style=\"width: 960px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Malware-Ransomware.png\" alt=\"Malware &amp; Ransomware\" width=\"960\" height=\"540\" class=\"size-full wp-image-17951\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Malware-Ransomware.png 960w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Malware-Ransomware-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Malware-Ransomware-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Malware-Ransomware-750x422.png 750w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption id=\"caption-attachment-17951\" class=\"wp-caption-text\">Malware &amp; Ransomware<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Lo-hong-Zero-Day\"><\/span>L\u1ed7 h\u1ed5ng Zero-Day<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L\u1ed7 h\u1ed5ng Zero-Day l\u00e0 nh\u1eefng <a href=\"https:\/\/interdata.vn\/blog\/lo-hong-bao-mat-la-gi\/\">l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/a> trong ph\u1ea7n m\u1ec1m ch\u01b0a \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n ho\u1eb7c ch\u01b0a \u0111\u01b0\u1ee3c v\u00e1 l\u1ed7i b\u1edfi nh\u00e0 ph\u00e1t tri\u1ec3n. Hacker c\u00f3 th\u1ec3 l\u1ee3i d\u1ee5ng nh\u1eefng l\u1ed7 h\u1ed5ng n\u00e0y \u0111\u1ec3 x\u00e2m nh\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"13-cach-bao-mat-VPS-toan-dien-va-hieu-qua-nhat\"><\/span>13 c\u00e1ch b\u1ea3o m\u1eadt VPS to\u00e0n di\u1ec7n v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 13 bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt gi\u00fap b\u1ea3o v\u1ec7 VPS c\u1ee7a b\u1ea1n tr\u01b0\u1edbc c\u00e1c m\u1ed1i \u0111e d\u1ecda n\u00eau tr\u00ean.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Su-dung-xac-thuc-da-yeu-to-MFA\"><\/span>1. S\u1eed d\u1ee5ng x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 (MFA)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>X\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 (MFA) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p b\u1ea3o m\u1eadt b\u1ed5 sung y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i cung c\u1ea5p \u00edt nh\u1ea5t hai ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u0103ng nh\u1eadp. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0, ngo\u00e0i m\u1eadt kh\u1ea9u, b\u1ea1n c\u00f2n c\u1ea7n m\u1ed9t y\u1ebfu t\u1ed1 kh\u00e1c nh\u01b0 m\u00e3 OTP (One-Time Password) t\u1eeb \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng.<\/p>\n<figure id=\"attachment_17952\" aria-describedby=\"caption-attachment-17952\" style=\"width: 960px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Su-dung-xac-thuc-da-yeu-to-MFA.png\" alt=\"S\u1eed d\u1ee5ng x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 (MFA)\" width=\"960\" height=\"540\" class=\"size-full wp-image-17952\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Su-dung-xac-thuc-da-yeu-to-MFA.png 960w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Su-dung-xac-thuc-da-yeu-to-MFA-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Su-dung-xac-thuc-da-yeu-to-MFA-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Su-dung-xac-thuc-da-yeu-to-MFA-750x422.png 750w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption id=\"caption-attachment-17952\" class=\"wp-caption-text\">S\u1eed d\u1ee5ng x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 (MFA)<\/figcaption><\/figure>\n<p>MFA gi\u1ea3m \u0111\u00e1ng k\u1ec3 nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng Brute Force, v\u00ec ngay c\u1ea3 khi hacker t\u00ecm \u0111\u01b0\u1ee3c m\u1eadt kh\u1ea9u, h\u1ecd v\u1eabn kh\u00f4ng th\u1ec3 \u0111\u0103ng nh\u1eadp m\u00e0 kh\u00f4ng c\u00f3 m\u00e3 x\u00e1c th\u1ef1c th\u1ee9 hai. N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 t\u1ea1i InterData, h\u00e3y b\u1eadt ngay <a href=\"https:\/\/interdata.vn\/blog\/bat-tinh-nang-xac-thuc-hai-buoc\/\">x\u00e1c th\u1ef1c hai b\u01b0\u1edbc<\/a> \u0111\u1ec3 b\u1ea3o v\u1ec7 t\u00e0i kho\u1ea3n c\u1ee7a m\u00ecnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Thiet-lap-mat-khau-SSH-manh\"><\/span>2. Thi\u1ebft l\u1eadp m\u1eadt kh\u1ea9u SSH m\u1ea1nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng <a href=\"https:\/\/interdata.vn\/blog\/ssh-la-gi\/\">SSH<\/a> \u0111\u1ec3 truy c\u1eadp v\u00e0o m\u00e1y ch\u1ee7, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ed1i m\u1eb7t v\u1edbi nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng Brute Force. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro, vi\u1ec7c s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. M\u1ed9t m\u1eadt kh\u1ea9u m\u1ea1nh n\u00ean k\u1ebft h\u1ee3p gi\u1eefa ch\u1eef hoa, ch\u1eef th\u01b0\u1eddng, s\u1ed1 v\u00e0 c\u00e1c k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c b\u01b0\u1edbc \u0111\u1ec3 thay \u0111\u1ed5i t\u00ean ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1eadt kh\u1ea9u \u0111\u1ec3 b\u1ea3o m\u1eadt SSH:<\/p>\n<p><strong>T\u1ea1o m\u1ed9t ng\u01b0\u1eddi d\u00f9ng m\u1edbi:<\/strong><\/p>\n<blockquote><p>sudo adduser newusername<br \/>\nsudo passwd newusername # Thi\u1ebft l\u1eadp m\u1eadt kh\u1ea9u cho ng\u01b0\u1eddi d\u00f9ng m\u1edbi<br \/>\nsudo usermod -aG sudo newusername<\/p><\/blockquote>\n<p><strong>M\u1edf t\u1ec7p c\u1ea5u h\u00ecnh SSH:<\/strong><\/p>\n<blockquote><p>sudo nano \/etc\/ssh\/sshd_config<\/p><\/blockquote>\n<p><strong>T\u00ecm v\u00e0 s\u1eeda d\u00f2ng sau:<\/strong><\/p>\n<blockquote><p>PermitRootLogin no<\/p><\/blockquote>\n<p><strong>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5 SSH:<\/strong><\/p>\n<blockquote><p>sudo systemctl restart sshd<\/p><\/blockquote>\n<h3><span class=\"ez-toc-section\" id=\"3-Cai-dat-phan-mem-Antivirus-va-Malware-cho-VPS\"><\/span>3. C\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m Antivirus v\u00e0 Malware cho VPS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m Antivirus gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 lo\u1ea1i b\u1ecf virus, malware, v\u00e0 c\u00e1c ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i kh\u00e1c. M\u1eb7c d\u00f9 b\u1ea1n s\u1eed d\u1ee5ng VPS <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh-linux-la-gi\/\">Linux<\/a> hay <a href=\"https:\/\/interdata.vn\/blog\/vps-windows-la-gi\/\">VPS Windows<\/a>, vi\u1ec7c c\u00f3 m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt n\u00e0y l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o v\u1ec7 VPS kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda. Ngo\u00e0i ra, b\u1ea1n ph\u1ea3i c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m Antivirus li\u00ean t\u1ee5c \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi c\u00e1c lo\u1ea1i virus v\u00e0 malware m\u1edbi nh\u1ea5t.<\/p>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u1ea7n m\u1ec1m ph\u00f9 h\u1ee3p v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt ch\u1ee7 \u0111\u1ed9ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n. B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o m\u1ed9t s\u1ed1 ph\u1ea7n m\u1ec1m ph\u1ed5 bi\u1ebfn nh\u01b0 ClamAV, ESET NOD32 Antivirus, CXS, Sophos Antivirus for Linux,&#8230;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall\"><\/span>4. B\u1ea3o m\u1eadt VPS b\u1eb1ng c\u00e1ch c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda (Firewall)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c thi\u1ebft l\u1eadp <a href=\"https:\/\/interdata.vn\/blog\/tuong-lua-firewall\/\">t\u01b0\u1eddng l\u1eeda<\/a> (Firewall) l\u00e0 m\u1ed9t b\u01b0\u1edbc thi\u1ebft y\u1ebfu trong vi\u1ec7c b\u1ea3o m\u1eadt m\u00e1y ch\u1ee7 VPS, gi\u00fap qu\u1ea3n l\u00fd v\u00e0 ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng ra v\u00e0o m\u00e1y ch\u1ee7. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda cho hai <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh\/\">h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/a> ph\u1ed5 bi\u1ebfn: Ubuntu\/Debian v\u00e0 CentOS\/RHEL.<\/p>\n<p>Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd:<\/p>\n<ul>\n<li><strong>C\u1ea5u h\u00ecnh SSH c\u1ea9n th\u1eadn:<\/strong> Tr\u01b0\u1edbc khi b\u1eadt t\u01b0\u1eddng l\u1eeda, h\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng b\u1ea1n \u0111\u00e3 cho ph\u00e9p k\u1ebft n\u1ed1i SSH \u0111\u1ec3 tr\u00e1nh m\u1ea5t quy\u1ec1n truy c\u1eadp v\u00e0o m\u00e1y ch\u1ee7.<\/li>\n<li><strong>Ki\u1ec3m tra k\u1ef9 quy t\u1eafc:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c quy t\u1eafc t\u01b0\u1eddng l\u1eeda \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp ch\u00ednh x\u00e1c v\u00e0 kh\u00f4ng ch\u1eb7n c\u00e1c d\u1ecbch v\u1ee5 quan tr\u1ecdng.<\/li>\n<li><strong>Sao l\u01b0u c\u1ea5u h\u00ecnh:<\/strong> H\u00e3y l\u01b0u l\u1ea1i c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda hi\u1ec7n t\u1ea1i tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i l\u1edbn.<\/li>\n<\/ul>\n<figure id=\"attachment_17953\" aria-describedby=\"caption-attachment-17953\" style=\"width: 960px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall.png\" alt=\"B\u1ea3o m\u1eadt VPS b\u1eb1ng c\u00e1ch c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda (Firewall)\" width=\"960\" height=\"540\" class=\"size-full wp-image-17953\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall.png 960w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Bao-mat-VPS-bang-cach-cau-hinh-tuong-lua-Firewall-750x422.png 750w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption id=\"caption-attachment-17953\" class=\"wp-caption-text\">B\u1ea3o m\u1eadt VPS b\u1eb1ng c\u00e1ch c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda (Firewall)<\/figcaption><\/figure>\n<h4>4.1 C\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda tr\u00ean Ubuntu\/Debian v\u1edbi UFM<\/h4>\n<p>\u0110\u1ec3 c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda cho VPS tr\u00ean Ubuntu\/Debian, b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng <a href=\"https:\/\/interdata.vn\/blog\/ufw-la-gi\/\">UFW<\/a> (Uncomplicated Firewall). N\u1ebfu ch\u01b0a c\u00f3, b\u1ea1n c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t theo l\u1ec7nh sau:<\/p>\n<p><strong>B\u01b0\u1edbc 1: C\u00e0i \u0111\u1eb7t UFW<\/strong><\/p>\n<blockquote><p>sudo ufw status<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 2: C\u1ea5u h\u00ecnh <a href=\"https:\/\/interdata.vn\/blog\/ipv6-la-gi\/\">IPv6<\/a> (T\u00f9y ch\u1ecdn)<\/strong><\/p>\n<p>N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng IPv6, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng UFW \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 h\u1ed7 tr\u1ee3 IPv6. M\u1edf file c\u1ea5u h\u00ecnh UFW:<\/p>\n<blockquote><p>sudo nano \/etc\/default\/ufw<\/p><\/blockquote>\n<p>T\u00ecm d\u00f2ng &#8220;IPV6&#8221; v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh yes:<\/p>\n<blockquote><p>IPV6=yes<\/p><\/blockquote>\n<p>L\u01b0u v\u00e0 \u0111\u00f3ng file.<\/p>\n<p><strong>B\u01b0\u1edbc 3: Thi\u1ebft l\u1eadp ch\u00ednh s\u00e1ch m\u1eb7c \u0111\u1ecbnh<\/strong><\/p>\n<p>Tr\u01b0\u1edbc khi cho ph\u00e9p c\u00e1c k\u1ebft n\u1ed1i c\u1ee5 th\u1ec3, b\u1ea1n n\u00ean thi\u1ebft l\u1eadp ch\u00ednh s\u00e1ch m\u1eb7c \u0111\u1ecbnh cho UFW. Ch\u00ednh s\u00e1ch m\u1eb7c \u0111\u1ecbnh s\u1ebd ch\u1eb7n t\u1ea5t c\u1ea3 c\u00e1c k\u1ebft n\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p:<\/p>\n<blockquote><p>sudo ufw default deny incoming<br \/>\nsudo ufw default allow outgoing<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 4: Cho ph\u00e9p k\u1ebft n\u1ed1i SSH<\/strong><\/p>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n kh\u00f4ng b\u1ecb kh\u00f3a kh\u1ecfi m\u00e1y ch\u1ee7, h\u00e3y cho ph\u00e9p k\u1ebft n\u1ed1i SSH. M\u1eb7c \u0111\u1ecbnh, SSH s\u1eed d\u1ee5ng c\u1ed5ng 22:<\/p>\n<blockquote><p>sudo ufw allow ssh<\/p><\/blockquote>\n<p>Tuy nhi\u00ean, n\u1ebfu b\u1ea1n \u0111\u00e3 thay \u0111\u1ed5i c\u1ed5ng SSH, h\u00e3y thay th\u1ebf &#8221;ssh&#8217; b\u1eb1ng s\u1ed1 c\u1ed5ng m\u00e0 b\u1ea1n \u0111\u00e3 c\u1ea5u h\u00ecnh.<\/p>\n<p><strong>B\u01b0\u1edbc 5: Cho ph\u00e9p c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c<\/strong><\/p>\n<p>N\u1ebfu b\u1ea1n c\u1ea7n cho ph\u00e9p c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c nh\u01b0 HTTP v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/giao-thuc-https-la-gi\/\">HTTPS<\/a>, b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n<blockquote><p>sudo ufw allow http<br \/>\nsudo ufw allow https<\/p><\/blockquote>\n<p>N\u1ebfu b\u1ea1n c\u1ea7n cho ph\u00e9p <a href=\"https:\/\/interdata.vn\/blog\/mysql-la-gi\/\">MySQL<\/a> (c\u1ed5ng 3306), b\u1ea1n c\u00f3 th\u1ec3 th\u00eam:<\/p>\n<blockquote><p>sudo ufw allow 3306<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 6: Ki\u1ec3m tra l\u1ea1i c\u00e1c quy t\u1eafc \u0111\u00e3 thi\u1ebft l\u1eadp<\/strong><\/p>\n<p>Tr\u01b0\u1edbc khi k\u00edch ho\u1ea1t UFW, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra l\u1ea1i c\u00e1c quy t\u1eafc \u0111\u00e3 thi\u1ebft l\u1eadp b\u1eb1ng l\u1ec7nh:<\/p>\n<blockquote><p>sudo ufw show added<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 7: K\u00edch ho\u1ea1t UFW<\/strong><\/p>\n<p>Sau khi \u0111\u00e3 c\u1ea5u h\u00ecnh xong, b\u1ea1n c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t UFW b\u1eb1ng l\u1ec7nh:<\/p>\n<blockquote><p>sudo ufw enable<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 8: Ki\u1ec3m tra tr\u1ea1ng th\u00e1i UFW<\/strong><\/p>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c quy t\u1eafc \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1ee7a UFW:<\/p>\n<blockquote><p>sudo ufw status<\/p><\/blockquote>\n<h4>4.2 C\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda tr\u00ean CentOS\/RHEL v\u1edbi Firewalld<\/h4>\n<p><a href=\"https:\/\/interdata.vn\/blog\/firewalld-la-gi\/\">Firewalld<\/a> l\u00e0 c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd t\u01b0\u1eddng l\u1eeda m\u1ea1nh m\u1ebd tr\u00ean CentOS\/RHEL. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ea5u h\u00ecnh t\u01b0\u1eddng l\u1eeda v\u1edbi Firewalld:<\/p>\n<p><strong>B\u01b0\u1edbc 1: C\u00e0i \u0111\u1eb7t v\u00e0 kh\u1edfi \u0111\u1ed9ng Firewalld<\/strong><\/p>\n<blockquote><p>sudo yum install firewalld #C\u00e0i \u0111\u1eb7t<br \/>\nsudo systemctl start firewalld<br \/>\nsudo systemctl enable firewalld<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 2: Cho ph\u00e9p k\u1ebft n\u1ed1i SSH<\/strong><\/p>\n<blockquote><p><span>sudo firewall-cmd &#8211;permanent &#8211;add-service=ssh<\/span><\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 3: Cho ph\u00e9p HTTP v\u00e0 HTTPS<\/strong><\/p>\n<blockquote><p>sudo firewall-cmd &#8211;permanent &#8211;add-service=http<br \/>\nsudo firewall-cmd &#8211;permanent &#8211;add-service=https<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 4: \u00c1p d\u1ee5ng thay \u0111\u1ed5i<\/strong><\/p>\n<blockquote><p>sudo firewall-cmd &#8211;reload<\/p><\/blockquote>\n<p><strong>B\u01b0\u1edbc 5: Ki\u1ec3m tra c\u00e1c quy t\u1eafc<\/strong><\/p>\n<blockquote><p>sudo firewall-cmd &#8211;list-all<\/p><\/blockquote>\n<h3><span class=\"ez-toc-section\" id=\"5-Chan-IP-quoc-te\"><\/span>5. Ch\u1eb7n IP qu\u1ed1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n ch\u1ec9 c\u1ea7n truy c\u1eadp VPS t\u1eeb m\u1ed9t qu\u1ed1c gia c\u1ee5 th\u1ec3, vi\u1ec7c ch\u1eb7n c\u00e1c IP qu\u1ed1c t\u1ebf c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt hi\u1ec7u qu\u1ea3. B\u1eb1ng c\u00e1ch gi\u1edbi h\u1ea1n quy\u1ec1n truy c\u1eadp t\u1eeb c\u00e1c qu\u1ed1c gia kh\u00f4ng c\u1ea7n thi\u1ebft, b\u1ea1n s\u1ebd gi\u1ea3m nguy c\u01a1 b\u1ecb hacker t\u1eeb c\u00e1c khu v\u1ef1c kh\u00e1c t\u1ea5n c\u00f4ng. Nhi\u1ec1u h\u1ec7 th\u1ed1ng t\u01b0\u1eddng l\u1eeda hi\u1ec7n nay cho ph\u00e9p c\u1ea5u h\u00ecnh ch\u1eb7n c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/dia-chi-ip-la-gi\/\">\u0111\u1ecba ch\u1ec9 IP<\/a> d\u1ef1a tr\u00ean v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6-Thuc-hien-backupsao-luu-du-lieu-lien-tuc\"><\/span>6. Th\u1ef1c hi\u1ec7n backup\/sao l\u01b0u d\u1eef li\u1ec7u li\u00ean t\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c backup d\u1eef li\u1ec7u \u0111\u1ecbnh k\u1ef3 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c h\u1ec7 th\u1ed1ng trong tr\u01b0\u1eddng h\u1ee3p b\u1ecb t\u1ea5n c\u00f4ng ho\u1eb7c l\u1ed7i h\u1ec7 th\u1ed1ng. N\u1ebfu h\u1ec7 th\u1ed1ng b\u1ecb nhi\u1ec5m ransomware, vi\u1ec7c c\u00f3 b\u1ea3n sao l\u01b0u s\u1ebd gi\u00fap b\u1ea1n kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n tr\u1ea3 ti\u1ec1n chu\u1ed9c. B\u1ea1n n\u00ean th\u1ef1c hi\u1ec7n sao l\u01b0u t\u1ef1 \u0111\u1ed9ng v\u00e0 l\u01b0u tr\u1eef b\u1ea3n sao l\u01b0u \u1edf m\u1ed9t v\u1ecb tr\u00ed an to\u00e0n, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y.<\/p>\n<figure id=\"attachment_17954\" aria-describedby=\"caption-attachment-17954\" style=\"width: 960px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Thuc-hien-backup-sao-luu-du-lieu-lien-tuc.png\" alt=\"Th\u1ef1c hi\u1ec7n backup sao l\u01b0u d\u1eef li\u1ec7u li\u00ean t\u1ee5c\" width=\"960\" height=\"540\" class=\"size-full wp-image-17954\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Thuc-hien-backup-sao-luu-du-lieu-lien-tuc.png 960w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Thuc-hien-backup-sao-luu-du-lieu-lien-tuc-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Thuc-hien-backup-sao-luu-du-lieu-lien-tuc-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Thuc-hien-backup-sao-luu-du-lieu-lien-tuc-750x422.png 750w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption id=\"caption-attachment-17954\" class=\"wp-caption-text\">Th\u1ef1c hi\u1ec7n backup\/ sao l\u01b0u d\u1eef li\u1ec7u li\u00ean t\u1ee5c<\/figcaption><\/figure>\n<p>T\u1ea1i InterData, c\u00e1c g\u00f3i VPS, <a href=\"https:\/\/interdata.vn\/blog\/cloud-server-may-chu-dam-may\/\">Cloud Server<\/a>, Hosting,&#8230; \u0111\u01b0\u1ee3c sao l\u01b0u li\u00ean t\u1ee5c \u0111\u1ecbnh k\u1ef3 m\u1ed7i ng\u00e0y\/ m\u1ed7i tu\u1ea7n, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u. Ngo\u00e0i ra, Qu\u00fd Kh\u00e1ch s\u1ebd c\u00f3 to\u00e0n quy\u1ec1n qu\u1ea3n tr\u1ecb bao g\u1ed3m t\u1ef1 \u0111\u1ed9ng Backup v\u00e0 Restore d\u1ec5 d\u00e0ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7-Cap-nhat-Windows-va-phan-mem-thuong-xuyen\"><\/span>7. C\u1eadp nh\u1eadt Windows v\u00e0 ph\u1ea7n m\u1ec1m th\u01b0\u1eddng xuy\u00ean<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t trong nh\u1eefng c\u00e1ch d\u1ec5 nh\u1ea5t nh\u01b0ng hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 b\u1ea3o m\u1eadt VPS l\u00e0<strong> lu\u00f4n c\u1eadp nh\u1eadt h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 ph\u1ea7n m\u1ec1m<\/strong>. C\u00e1c b\u1ea3n c\u1eadp nh\u1eadt th\u01b0\u1eddng ch\u1ee9a c\u00e1c b\u1ea3n v\u00e1 b\u1ea3o m\u1eadt nh\u1eb1m kh\u1eafc ph\u1ee5c c\u00e1c l\u1ed7 h\u1ed5ng m\u00e0 hacker c\u00f3 th\u1ec3 khai th\u00e1c. H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u00ednh n\u0103ng c\u1eadp nh\u1eadt t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t tr\u00ean VPS c\u1ee7a b\u1ea1n ho\u1eb7c th\u1ef1c hi\u1ec7n ki\u1ec3m tra v\u00e0 c\u1eadp nh\u1eadt th\u1ee7 c\u00f4ng (n\u1ebfu c\u1ea7n).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8-Quan-ly-nhat-ky-he-thong\"><\/span>8. Qu\u1ea3n l\u00fd nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng cung c\u1ea5p th\u00f4ng tin quan tr\u1ecdng v\u1ec1 c\u00e1c ho\u1ea1t \u0111\u1ed9ng di\u1ec5n ra tr\u00ean VPS. B\u1ea1n c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng ng\u1edd ho\u1eb7c c\u00e1c n\u1ed7 l\u1ef1c t\u1ea5n c\u00f4ng b\u1eb1ng c\u00e1ch theo d\u00f5i nh\u1eadt k\u00fd n\u00e0y th\u01b0\u1eddng xuy\u00ean.<\/p>\n<p>M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd nh\u1eadt k\u00fd t\u1ef1 \u0111\u1ed9ng c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng g\u1eedi c\u1ea3nh b\u00e1o n\u1ebfu ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng, gi\u00fap b\u1ea1n ph\u1ea3n \u1ee9ng k\u1ecbp th\u1eddi tr\u01b0\u1edbc khi cu\u1ed9c t\u1ea5n c\u00f4ng g\u00e2y thi\u1ec7t h\u1ea1i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o:<\/p>\n<ul>\n<li><strong>Logwatch:<\/strong> C\u00f4ng c\u1ee5 <a href=\"https:\/\/interdata.vn\/blog\/open-source-la-gi\/\">m\u00e3 ngu\u1ed3n m\u1edf<\/a> gi\u00fap t\u1ef1 \u0111\u1ed9ng ph\u00e2n t\u00edch v\u00e0 t\u1ea1o b\u00e1o c\u00e1o nh\u1eadt k\u00fd h\u00e0ng ng\u00e0y, g\u1eedi qua email cho ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb.<\/li>\n<li><strong>Graylog:<\/strong> L\u00e0 c\u00f4ng c\u1ee5 cung c\u1ea5p giao di\u1ec7n tr\u1ef1c quan \u0111\u1ec3 theo d\u00f5i v\u00e0 ph\u00e2n t\u00edch c\u00e1c s\u1ef1 ki\u1ec7n t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau trong h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>Splunk:<\/strong> Tuy l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p th\u01b0\u01a1ng m\u1ea1i, nh\u01b0ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao nh\u1edd kh\u1ea3 n\u0103ng x\u1eed l\u00fd l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u nh\u1eadt k\u00fd v\u00e0 cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch n\u00e2ng cao.<\/li>\n<li><strong>ELK <a href=\"https:\/\/interdata.vn\/blog\/stack-la-gi\/\">Stack<\/a><\/strong> <strong>(bao g\u1ed3m Elasticsearch, Logstash v\u00e0 Kibana):<\/strong> L\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho nh\u1eefng ai mu\u1ed1n c\u00f3 gi\u1ea3i ph\u00e1p to\u00e0n di\u1ec7n trong vi\u1ec7c thu th\u1eadp, ph\u00e2n t\u00edch v\u00e0 h\u00ecnh dung d\u1eef li\u1ec7u nh\u1eadt k\u00fd theo th\u1eddi gian th\u1ef1c.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"9-Cai-dat-cac-phan-mem-diet-Malware\"><\/span>9. C\u00e0i \u0111\u1eb7t c\u00e1c ph\u1ea7n m\u1ec1m di\u1ec7t Malware<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ngo\u00e0i ph\u1ea7n m\u1ec1m Antivirus, b\u1ea1n n\u00ean c\u00e0i \u0111\u1eb7t c\u00e1c ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 di\u1ec7t Malware. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c m\u00e3 \u0111\u1ed9c m\u00e0 Antivirus c\u00f3 th\u1ec3 b\u1ecf s\u00f3t, t\u1eeb \u0111\u00f3 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng malware v\u00e0 ransomware hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"10-Su-dung-cong-cu-phat-hien-Brute-Force\"><\/span>10. S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n Brute Force<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n Brute Force gi\u00fap gi\u00e1m s\u00e1t c\u00e1c n\u1ed7 l\u1ef1c \u0111\u0103ng nh\u1eadp th\u1ea5t b\u1ea1i li\u00ean ti\u1ebfp v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c t\u1ea5n c\u00f4ng d\u00f2 m\u1eadt kh\u1ea9u. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd kh\u00f3a t\u00e0i kho\u1ea3n t\u1ea1m th\u1eddi sau m\u1ed9t s\u1ed1 l\u1ea7n th\u1eed \u0111\u0103ng nh\u1eadp kh\u00f4ng th\u00e0nh c\u00f4ng, gi\u00fap b\u1ea3o v\u1ec7 VPS kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng li\u00ean t\u1ee5c. M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n Brute Force ph\u1ed5 bi\u1ebfn hi\u1ec7n nay l\u00e0 LFD (Login Failure Daemon), CSF (ConfigServer Security &amp; Firewall), SSHGuard,&#8230;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"11-Bao-mat-VPS-bang-cach-dung-chung-chi-SSL\"><\/span>11. B\u1ea3o m\u1eadt VPS b\u1eb1ng c\u00e1ch d\u00f9ng ch\u1ee9ng ch\u1ec9 SSL<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/interdata.vn\/blog\/chung-chi-ssl\/\">Ch\u1ee9ng ch\u1ec9 SSL<\/a> (Secure Sockets Layer) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p b\u1ea3o m\u1eadt c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u00e3 h\u00f3a c\u00e1c k\u1ebft n\u1ed1i gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 VPS. Khi b\u1ea1n c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL cho VPS, to\u00e0n b\u1ed9 d\u1eef li\u1ec7u truy\u1ec1n t\u1ea3i s\u1ebd \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c hacker c\u00f3 \u00fd \u0111\u1ed3 t\u1ea5n c\u00f4ng Man-in-the-Middle ho\u1eb7c \u0111\u00e1nh c\u1eafp th\u00f4ng tin nh\u1ea1y c\u1ea3m. Ngo\u00e0i ra, c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">website<\/a> s\u1eed d\u1ee5ng SSL s\u1ebd \u0111\u01b0\u1ee3c \u01b0u ti\u00ean tr\u00ean Google, gi\u00fap t\u0103ng c\u01b0\u1eddng <a href=\"https:\/\/interdata.vn\/blog\/seo-la-gi\/\">SEO<\/a> v\u00e0 n\u00e2ng cao uy t\u00edn c\u1ee7a website.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"12-Quan-ly-quyen-truy-cap-nguoi-dung-tren-VPS\"><\/span>12. Qu\u1ea3n l\u00fd quy\u1ec1n truy c\u1eadp ng\u01b0\u1eddi d\u00f9ng tr\u00ean VPS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng VPS, vi\u1ec7c ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp c\u1ee7a ng\u01b0\u1eddi d\u00f9ng l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng.<\/p>\n<h4>12.1 T\u1ea1o t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng v\u00e0 nh\u00f3m<\/h4>\n<p>S\u1eed d\u1ee5ng l\u1ec7nh useradd \u0111\u1ec3 t\u1ea1o t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng m\u1edbi cho h\u1ec7 th\u1ed1ng v\u00e0 adduser n\u1ebfu b\u1ea1n mu\u1ed1n th\u00eam c\u00e1c t\u00f9y ch\u1ecdn b\u1ed5 sung khi t\u1ea1o ng\u01b0\u1eddi d\u00f9ng. Vi\u1ec7c <a href=\"https:\/\/interdata.vn\/blog\/phan-quyen-authorization-la-gi\/\">ph\u00e2n quy\u1ec1n<\/a> \u0111\u00fang m\u1ee9c l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 h\u1ea1n ch\u1ebf nh\u1eefng quy\u1ec1n kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n<blockquote><p>sudo useradd -m username<\/p><\/blockquote>\n<h4>12.2 G\u00e1n quy\u1ec1n sudo<\/h4>\n<p>Trong tr\u01b0\u1eddng h\u1ee3p m\u1ed9t ng\u01b0\u1eddi d\u00f9ng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 qu\u1ea3n tr\u1ecb, b\u1ea1n c\u00f3 th\u1ec3 g\u00e1n quy\u1ec1n sudo cho h\u1ecd. Tuy nhi\u00ean, c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 nh\u1eefng ng\u01b0\u1eddi d\u00f9ng th\u1eadt s\u1ef1 c\u1ea7n thi\u1ebft m\u1edbi \u0111\u01b0\u1ee3c c\u1ea5p quy\u1ec1n n\u00e0y \u0111\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro an ninh.<\/p>\n<blockquote><p>sudo usermod -aG sudo username<\/p><\/blockquote>\n<h3><span class=\"ez-toc-section\" id=\"13-Lua-chon-nha-cung-cap-dich-vu-VPS-chat-luong\"><\/span>13. L\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 VPS ch\u1ea5t l\u01b0\u1ee3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cu\u1ed1i c\u00f9ng, vi\u1ec7c ch\u1ecdn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 VPS ch\u1ea5t l\u01b0\u1ee3ng l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh trong vi\u1ec7c b\u1ea3o m\u1eadt h\u1ec7 th\u1ed1ng. M\u1ed9t nh\u00e0 cung c\u1ea5p t\u1ed1t s\u1ebd c\u00f3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd, h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7 v\u00e0 cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 b\u1ea3o m\u1eadt ti\u00ean ti\u1ebfn. H\u00e3y \u01b0u ti\u00ean ch\u1ecdn c\u00e1c nh\u00e0 cung c\u1ea5p c\u00f3 uy t\u00edn v\u00e0 nhi\u1ec1u kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c b\u1ea3o m\u1eadt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 t\u1ed1t nh\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>VPS mang \u0111\u1ebfn nhi\u1ec1u l\u1ee3i \u00edch cho ng\u01b0\u1eddi d\u00f9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c doanh nghi\u1ec7p v\u1eeba v\u00e0 nh\u1ecf, c\u00e1 nh\u00e2n c\u1ea7n l\u01b0u tr\u1eef d\u1eef li\u1ec7u v\u00e0 ch\u1ea1y c\u00e1c \u1ee9ng d\u1ee5ng web v\u1edbi chi ph\u00ed h\u1ee3p l\u00fd. Tuy nhi\u00ean, song song v\u1edbi nh\u1eefng l\u1ee3i \u00edch \u0111\u00f3, v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt m\u00e1y ch\u1ee7 \u1ea3o c\u0169ng l\u00e0 m\u1ed9t<\/p>\n","protected":false},"author":15,"featured_media":17948,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-17668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vps"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/17668","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\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=17668"}],"version-history":[{"count":1,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/17668\/revisions"}],"predecessor-version":[{"id":32026,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/17668\/revisions\/32026"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/17948"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=17668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=17668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=17668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}