{"id":27828,"date":"2025-05-03T17:14:58","date_gmt":"2025-05-03T10:14:58","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=27828"},"modified":"2026-02-12T10:09:20","modified_gmt":"2026-02-12T03:09:20","slug":"sftp-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/sftp-la-gi\/","title":{"rendered":"SFTP l\u00e0 g\u00ec? C\u00e1ch ho\u1ea1t \u0111\u1ed9ng, L\u1ee3i \u00edch &#038; So s\u00e1nh SFTP v\u1edbi FTP\/FTPS"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#SFTP-la-gi\" >SFTP 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\/sftp-la-gi\/#SFTP-hoat-dong-nhu-the-nao\" >SFTP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Tai-sao-nen-su-dung-SFTP-de-truyen-tai-du-lieu\" >T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng SFTP \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Tinh-bao-mat-cao\" >T\u00ednh b\u1ea3o m\u1eadt cao<\/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\/sftp-la-gi\/#Xac-thuc-da-dang-voi-SSH-Key\" >X\u00e1c th\u1ef1c \u0111a d\u1ea1ng v\u1edbi SSH Key<\/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\/sftp-la-gi\/#Quan-ly-don-gian-va-hieu-qua\" >Qu\u1ea3n l\u00fd \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3<\/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\/sftp-la-gi\/#Tinh-toan-ven-du-lieu\" >T\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Du-lieu-quan-trong-can-ha-tang-bao-mat-cao\" >D\u1eef li\u1ec7u quan tr\u1ecdng c\u1ea7n h\u1ea1 t\u1ea7ng b\u1ea3o m\u1eadt cao?<\/a><\/li><\/ul><\/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\/sftp-la-gi\/#So-sanh-SFTP-FTP-va-FTPS-Su-khac-biet-la-gi\" >So s\u00e1nh SFTP, FTP v\u00e0 FTPS: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#SFTP-vs-FTP\" >SFTP vs FTP<\/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\/sftp-la-gi\/#SFTP-vs-FTPS\" >SFTP vs FTPS<\/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\/sftp-la-gi\/#Bang-so-sanh-chi-tiet-cac-thong-so-ky-thuat\" >B\u1ea3ng so s\u00e1nh chi ti\u1ebft c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Khi-nao-ban-can-dung-SFTP\" >Khi n\u00e0o b\u1ea1n c\u1ea7n d\u00f9ng SFTP?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Huong-dan-su-dung-SFTP-co-ban\" >H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng SFTP c\u01a1 b\u1ea3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Cac-thong-tin-can-thiet-de-ket-noi-SFTP\" >C\u00e1c th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u1ebft n\u1ed1i SFTP<\/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\/sftp-la-gi\/#Mot-so-phan-mem-SFTP-Client-pho-bien\" >M\u1ed9t s\u1ed1 ph\u1ea7n m\u1ec1m SFTP Client ph\u1ed5 bi\u1ebfn<\/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\/sftp-la-gi\/#Can-VPS-on-dinh-gia-tot-de-thuc-hanh\" >C\u1ea7n VPS \u1ed5n \u0111\u1ecbnh, gi\u00e1 t\u1ed1t \u0111\u1ec3 th\u1ef1c h\u00e0nh?<\/a><\/li><\/ul><\/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\/sftp-la-gi\/#Top-3-Phan-mem-SFTP-Client-tot-nhat-hien-nay\" >Top 3 Ph\u1ea7n m\u1ec1m SFTP Client t\u1ed1t nh\u1ea5t hi\u1ec7n nay<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#FileZilla\" >FileZilla<\/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\/sftp-la-gi\/#WinSCP\" >WinSCP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Cyberduck\" >Cyberduck<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#Cau-hoi-thuong-gap-ve-SFTP-FAQ\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 SFTP (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#1-SFTP-co-mien-phi-khong\" >1. SFTP c\u00f3 mi\u1ec5n ph\u00ed kh\u00f4ng?<\/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\/sftp-la-gi\/#2-Cong-22-co-phai-la-bat-buoc-cho-SFTP\" >2. C\u1ed5ng 22 c\u00f3 ph\u1ea3i l\u00e0 b\u1eaft bu\u1ed9c cho SFTP?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#3-Lam-sao-de-lay-thong-tin-SFTP-tu-nha-cung-cap-hosting\" >3. L\u00e0m sao \u0111\u1ec3 l\u1ea5y th\u00f4ng tin SFTP t\u1eeb nh\u00e0 cung c\u1ea5p hosting?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/#4-Co-the-dung-SFTP-tren-dien-thoai-di-dong-khong\" >4. C\u00f3 th\u1ec3 d\u00f9ng SFTP tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng kh\u00f4ng?<\/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\/sftp-la-gi\/#5-SFTP-co-nhanh-bang-FTP-khong\" >5. SFTP c\u00f3 nhanh b\u1eb1ng FTP kh\u00f4ng?<\/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\/sftp-la-gi\/#6-SSH-va-SFTP-co-phai-la-mot-khong\" >6. SSH v\u00e0 SFTP c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t kh\u00f4ng?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<div style=\"background-color: #f0f7ff; border-left: 5px solid #0056b3; padding: 20px; margin-bottom: 30px; border-radius: 4px;\">\n<p><strong>T\u00f3m t\u1eaft n\u1ed9i dung:<\/strong><\/p>\n<p style=\"margin-bottom: 10px;\">SFTP (SSH <a href=\"https:\/\/interdata.vn\/blog\/ftp-la-gi\/\">File Transfer Protocol<\/a>) l\u00e0 m\u1ed9t giao th\u1ee9c m\u1ea1ng an to\u00e0n ch\u1ea1y tr\u00ean n\u1ec1n t\u1ea3ng SSH, cho ph\u00e9p truy c\u1eadp, truy\u1ec1n t\u1ea3i v\u00e0 qu\u1ea3n l\u00fd t\u1eadp tin gi\u1eefa c\u00e1c m\u00e1y t\u00ednh qua m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ho\u00e0n to\u00e0n. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch s\u00e2u v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng, so s\u00e1nh s\u1ef1 v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a SFTP so v\u1edbi FTP truy\u1ec1n th\u1ed1ng v\u00e0 cung c\u1ea5p h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n.<\/p>\n<p><strong>Th\u00f4ng tin ch\u00ednh trong b\u00e0i vi\u1ebft:<\/strong><\/p>\n<ul style=\"margin-bottom: 0;\">\n<li><strong>Kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i:<\/strong> SFTP l\u00e0 phi\u00ean b\u1ea3n b\u1ea3o m\u1eadt cao c\u1ee7a giao th\u1ee9c truy\u1ec1n file, s\u1eed d\u1ee5ng <a href=\"https:\/\/interdata.vn\/blog\/port-la-gi\/\">Port<\/a> 22 m\u1eb7c \u0111\u1ecbnh.<\/li>\n<li><strong>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng:<\/strong> D\u1ef1a tr\u00ean <a href=\"https:\/\/interdata.vn\/blog\/ssh-la-gi\/\">giao th\u1ee9c SSH<\/a> (Secure Shell) \u0111\u1ec3 m\u00e3 h\u00f3a c\u1ea3 l\u1ec7nh \u0111i\u1ec1u khi\u1ec3n v\u00e0 d\u1eef li\u1ec7u truy\u1ec1n \u0111i.<\/li>\n<li><strong>Ph\u00e2n lo\u1ea1i:<\/strong> Ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa SFTP (SSH) v\u00e0 FTPS (SSL\/TLS) \u0111\u1ec3 tr\u00e1nh nh\u1ea7m l\u1eabn trong c\u1ea5u h\u00ecnh <a href=\"https:\/\/interdata.vn\/blog\/may-chu-server-la-gi\/\">m\u00e1y ch\u1ee7<\/a>.<\/li>\n<li><strong>L\u1ee3i \u00edch ch\u00ednh:<\/strong> B\u1ea3o v\u1ec7 d\u1eef li\u1ec7u tr\u01b0\u1edbc c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nghe l\u00e9n (sniffing), gi\u1ea3 m\u1ea1o (spoofing) v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c c\u1ea5u h\u00ecnh <a href=\"https:\/\/interdata.vn\/blog\/tuong-lua-firewall\/\">t\u01b0\u1eddng l\u1eeda<\/a>.<\/li>\n<\/ul>\n<\/div>\n<p>B\u1ea1n \u0111ang t\u00ecm hi\u1ec3u giao th\u1ee9c m\u1ea1ng <strong>SFTP l\u00e0 g\u00ec<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i cho d\u1eef li\u1ec7u khi truy\u1ec1n t\u1ea3i l\u00ean m\u00e1y ch\u1ee7 <a href=\"https:\/\/interdata.vn\/blog\/vps-la-gi\/\">VPS<\/a> ho\u1eb7c Hosting? B\u00e0i vi\u1ebft n\u00e0y t\u1eeb <a href=\"https:\/\/interdata.vn\/\">InterData<\/a> s\u1ebd gi\u1ea3i th\u00edch t\u01b0\u1eddng t\u1eadn c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng, ch\u1ec9 ra s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i so v\u1edbi FTP truy\u1ec1n th\u1ed1ng v\u00e0 h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch c\u1ea5u h\u00ecnh chi ti\u1ebft, gi\u00fap quy tr\u00ecnh qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng tr\u1edf n\u00ean b\u1ea3o m\u1eadt v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"SFTP-la-gi\"><\/span>SFTP l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/\">SFTP <\/a>(vi\u1ebft t\u1eaft c\u1ee7a SSH File Transfer Protocol ho\u1eb7c Secure File Transfer Protocol) l\u00e0 m\u1ed9t giao th\u1ee9c m\u1ea1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy c\u1eadp, truy\u1ec1n t\u1ea3i v\u00e0 qu\u1ea3n l\u00fd t\u1eadp tin tr\u00ean c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>Kh\u00e1c v\u1edbi FTP truy\u1ec1n th\u1ed1ng g\u1eedi d\u1eef li\u1ec7u d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n thu\u1ea7n (plain text), SFTP ch\u1ea1y tr\u00ean n\u1ec1n t\u1ea3ng giao th\u1ee9c\u00a0SSH (Secure Shell). \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 to\u00e0n b\u1ed9 phi\u00ean l\u00e0m vi\u1ec7c, bao g\u1ed3m th\u00f4ng tin x\u00e1c th\u1ef1c (username\/password), c\u00e1c l\u1ec7nh \u0111i\u1ec1u khi\u1ec3n v\u00e0 n\u1ed9i dung t\u1eadp tin \u0111\u1ec1u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a tr\u01b0\u1edbc khi g\u1eedi \u0111i qua m\u00f4i tr\u01b0\u1eddng <a href=\"https:\/\/interdata.vn\/blog\/mang-internet\/\">m\u1ea1ng internet<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27833\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/SFTP-la-gi.jpg\" alt=\"SFTP l\u00e0 g\u00ec\" width=\"750\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/SFTP-la-gi.jpg 750w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/SFTP-la-gi-300x200.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, SFTP Server th\u01b0\u1eddng s\u1eed d\u1ee5ng Port 22 m\u1eb7c \u0111\u1ecbnh (c\u00f9ng c\u1ed5ng v\u1edbi SSH). C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 d\u1ef1a tr\u00ean ki\u1ebfn tr\u00fac Client-Server:<\/p>\n<ul>\n<li><strong>SFTP Client<\/strong>:\u00a0Ph\u1ea7n m\u1ec1m tr\u00ean m\u00e1y t\u00ednh ng\u01b0\u1eddi d\u00f9ng kh\u1edfi t\u1ea1o k\u1ebft n\u1ed1i.<\/li>\n<li><strong>SFTP Server<\/strong>:\u00a0M\u00e1y ch\u1ee7 ch\u1ea5p nh\u1eadn k\u1ebft n\u1ed1i, x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c l\u1ec7nh qu\u1ea3n l\u00fd file.<\/li>\n<\/ul>\n<p>Do t\u00ednh ch\u1ea5t m\u00e3 h\u00f3a m\u1ea1nh m\u1ebd (th\u01b0\u1eddng s\u1eed d\u1ee5ng <a href=\"https:\/\/interdata.vn\/blog\/thuat-toan-algorithm\/\">thu\u1eadt to\u00e1n<\/a> AES, Blowfish), SFTP ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 c\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng trung gian (Man-in-the-Middle) v\u00e0 nghe l\u00e9n d\u1eef li\u1ec7u (Sniffing), tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng (SysAdmin) v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/lap-trinh-la-gi\/\">l\u1eadp tr\u00ecnh<\/a> vi\u00ean hi\u1ec7n nay.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"SFTP-hoat-dong-nhu-the-nao\"><\/span>SFTP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ch\u1ee7 SFTP g\u1eafn li\u1ec1n v\u1edbi giao th\u1ee9c n\u1ec1n t\u1ea3ng l\u00e0 SSH (Secure Shell). Khi b\u1ea1n kh\u1edfi t\u1ea1o m\u1ed9t k\u1ebft n\u1ed1i SFTP, th\u1ef1c ch\u1ea5t l\u00e0 b\u1ea1n \u0111ang y\u00eau c\u1ea7u thi\u1ebft l\u1eadp m\u1ed9t k\u1ebft n\u1ed1i SSH an to\u00e0n tr\u01b0\u1edbc ti\u00ean.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27829\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-01.jpg\" alt=\"Secure File Transfer Protocol (SFTP) 01\" width=\"750\" height=\"375\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-01.jpg 750w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-01-300x150.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-01-360x180.jpg 360w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>Qu\u00e1 tr\u00ecnh n\u00e0y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c m\u00e1y kh\u00e1ch SFTP (ch\u01b0\u01a1ng tr\u00ecnh b\u1ea1n d\u00f9ng) k\u1ebft n\u1ed1i \u0111\u1ebfn m\u00e1y ch\u1ee7 SFTP (server n\u01a1i ch\u1ee9a file) qua c\u1ed5ng m\u1ea1ng m\u1eb7c \u0111\u1ecbnh l\u00e0 <strong>c\u1ed5ng 22 (Port 22)<\/strong>.<\/p>\n<p>Sau khi k\u1ebft n\u1ed1i TCP ban \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 s\u1ebd ti\u1ebfn h\u00e0nh &#8220;b\u1eaft tay&#8221; (handshake) theo giao th\u1ee9c SSH. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c trao \u0111\u1ed5i th\u00f4ng tin, th\u1ecfa thu\u1eadn thu\u1eadt to\u00e1n m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c danh t\u00ednh c\u1ee7a m\u00e1y ch\u1ee7.<\/p>\n<p>M\u00e1y ch\u1ee7 s\u1ebd g\u1eedi kh\u00f3a c\u00f4ng khai (public key) c\u1ee7a m\u00ecnh cho m\u00e1y kh\u00e1ch. M\u00e1y kh\u00e1ch s\u1ebd ki\u1ec3m tra kh\u00f3a n\u00e0y (th\u01b0\u1eddng d\u1ef1a v\u00e0o danh s\u00e1ch kh\u00f3a \u0111\u00e1ng tin c\u1eady \u0111\u00e3 l\u01b0u ho\u1eb7c h\u1ecfi ng\u01b0\u1eddi d\u00f9ng x\u00e1c nh\u1eadn l\u1ea7n \u0111\u1ea7u) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111ang k\u1ebft n\u1ed1i \u0111\u00fang m\u00e1y ch\u1ee7, tr\u00e1nh t\u1ea5n c\u00f4ng gi\u1ea3 m\u1ea1o.<\/p>\n<p>Ti\u1ebfp theo l\u00e0 giai \u0111o\u1ea1n <strong>x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng (user <a href=\"https:\/\/interdata.vn\/blog\/authentication-la-gi\/\">authentication<\/a>)<\/strong>. M\u00e1y ch\u1ee7 c\u1ea7n bi\u1ebft b\u1ea1n l\u00e0 ai v\u00e0 c\u00f3 quy\u1ec1n truy c\u1eadp hay kh\u00f4ng. C\u00f3 hai ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c ph\u1ed5 bi\u1ebfn:<\/p>\n<ol>\n<li><strong>X\u00e1c th\u1ef1c b\u1eb1ng m\u1eadt kh\u1ea9u:<\/strong> B\u1ea1n cung c\u1ea5p t\u00ean ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1eadt kh\u1ea9u. Th\u00f4ng tin n\u00e0y \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a an to\u00e0n qua k\u00eanh SSH tr\u01b0\u1edbc khi g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u1ec3 ki\u1ec3m tra.<\/li>\n<li><strong>X\u00e1c th\u1ef1c b\u1eb1ng kh\u00f3a SSH (<a href=\"https:\/\/interdata.vn\/blog\/ssh-key-la-gi\/\">SSH Key<\/a> Pair):<\/strong> Ph\u01b0\u01a1ng th\u1ee9c n\u00e0y an to\u00e0n h\u01a1n. B\u1ea1n t\u1ea1o m\u1ed9t c\u1eb7p kh\u00f3a (c\u00f4ng khai v\u00e0 b\u00ed m\u1eadt). Kh\u00f3a c\u00f4ng khai \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean m\u00e1y ch\u1ee7, kh\u00f3a b\u00ed m\u1eadt gi\u1eef \u1edf m\u00e1y kh\u00e1ch. M\u00e1y ch\u1ee7 s\u1ebd d\u00f9ng kh\u00f3a c\u00f4ng khai \u0111\u1ec3 th\u1eed th\u00e1ch, ch\u1ec9 m\u00e1y kh\u00e1ch c\u00f3 kh\u00f3a b\u00ed m\u1eadt t\u01b0\u01a1ng \u1ee9ng m\u1edbi tr\u1ea3 l\u1eddi \u0111\u00fang v\u00e0 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c.<\/li>\n<\/ol>\n<p>Sau khi c\u1ea3 m\u00e1y ch\u1ee7 v\u00e0 ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c th\u00e0nh c\u00f4ng, m\u1ed9t k\u00eanh giao ti\u1ebfp an to\u00e0n, \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ho\u00e0n to\u00e0n s\u1ebd \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7. \u0110\u01b0\u1eddng h\u1ea7m SSH n\u00e0y b\u1ea3o v\u1ec7 t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u truy\u1ec1n qua l\u1ea1i.<\/p>\n<p>L\u00fac n\u00e0y, giao th\u1ee9c SFTP b\u1eaft \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng <i>b\u00ean trong<\/i> \u0111\u01b0\u1eddng h\u1ea7m SSH an to\u00e0n \u0111\u00f3. M\u1ecdi l\u1ec7nh b\u1ea1n th\u1ef1c hi\u1ec7n (nh\u01b0 li\u1ec7t k\u00ea file, t\u1ea3i file l\u00ean\/xu\u1ed1ng) v\u00e0 d\u1eef li\u1ec7u file \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i, m\u00e3 h\u00f3a b\u1edfi SSH tr\u01b0\u1edbc khi g\u1eedi \u0111i v\u00e0 gi\u1ea3i m\u00e3 \u1edf \u0111\u1ea7u nh\u1eadn.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh <strong>b\u1ea3o m\u1eadt (confidentiality)<\/strong> &#8211; kh\u00f4ng ai xem tr\u1ed9m \u0111\u01b0\u1ee3c n\u1ed9i dung; <strong>to\u00e0n v\u1eb9n (integrity)<\/strong> &#8211; d\u1eef li\u1ec7u kh\u00f4ng b\u1ecb s\u1eeda \u0111\u1ed5i tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n; v\u00e0 <strong>x\u00e1c th\u1ef1c (authenticity)<\/strong> &#8211; b\u1ea1n bi\u1ebft ch\u1eafc m\u00ecnh \u0111ang n\u00f3i chuy\u1ec7n v\u1edbi \u0111\u00fang m\u00e1y ch\u1ee7 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<p>To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p n\u00e0y di\u1ec5n ra t\u1ef1 \u0111\u1ed9ng b\u1edfi ph\u1ea7n m\u1ec1m SFTP client v\u00e0 server, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m qu\u1ea3n l\u00fd file t\u1eeb xa v\u1eeba ti\u1ec7n l\u1ee3i v\u1eeba an to\u00e0n cho ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tai-sao-nen-su-dung-SFTP-de-truyen-tai-du-lieu\"><\/span>T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng SFTP \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trong m\u00f4i tr\u01b0\u1eddng internet nhi\u1ec1u r\u1ee7i ro hi\u1ec7n nay, vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u1eeb FTP sang SFTP kh\u00f4ng ch\u1ec9 l\u00e0 l\u1ef1a ch\u1ecdn m\u00e0 l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c, \u0111\u1eb7c bi\u1ec7t khi qu\u1ea3n l\u00fd VPS ho\u1eb7c Server.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tinh-bao-mat-cao\"><\/span>T\u00ednh b\u1ea3o m\u1eadt cao<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SFTP s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a hi\u1ec7n \u0111\u1ea1i (nh\u01b0 AES-256) v\u00e0 h\u00e0m b\u0103m (hashing) \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u. Ngay c\u1ea3 khi tin t\u1eb7c ch\u1eb7n \u0111\u01b0\u1ee3c g\u00f3i tin tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n, ch\u00fang c\u0169ng kh\u00f4ng th\u1ec3 gi\u1ea3i m\u00e3 n\u1ed9i dung b\u00ean trong. \u0110i\u1ec1u n\u00e0y c\u1ef1c k\u1ef3 quan tr\u1ecdng khi b\u1ea1n truy\u1ec1n t\u1ea3i <a href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/\">m\u00e3 ngu\u1ed3n<\/a> <a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">website<\/a>, c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng ho\u1eb7c c\u00e1c t\u00e0i li\u1ec7u nh\u1ea1y c\u1ea3m.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xac-thuc-da-dang-voi-SSH-Key\"><\/span>X\u00e1c th\u1ef1c \u0111a d\u1ea1ng v\u1edbi SSH Key<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ngo\u00e0i vi\u1ec7c x\u00e1c th\u1ef1c b\u1eb1ng m\u1eadt kh\u1ea9u truy\u1ec1n th\u1ed1ng, SFTP h\u1ed7 tr\u1ee3 x\u00e1c th\u1ef1c b\u1eb1ng <strong>SSH Key Pair<\/strong> (Public Key v\u00e0 Private Key). Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y lo\u1ea1i b\u1ecf nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng d\u00f2 m\u1eadt kh\u1ea9u (Brute-force attack), v\u00ec ch\u1ec9 ng\u01b0\u1eddi n\u1eafm gi\u1eef Private Key m\u1edbi c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o m\u00e1y ch\u1ee7.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quan-ly-don-gian-va-hieu-qua\"><\/span>Qu\u1ea3n l\u00fd \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SFTP ch\u1ec9 s\u1eed d\u1ee5ng m\u1ed9t k\u1ebft n\u1ed1i duy nh\u1ea5t (Single Data Connection) cho c\u1ea3 l\u1ec7nh v\u00e0 d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean d\u1ec5 d\u00e0ng c\u1ea5u h\u00ecnh NAT (<a href=\"https:\/\/interdata.vn\/blog\/nat-la-gi\/\">Network Address Translation<\/a>) v\u00e0 t\u01b0\u1eddng l\u1eeda, gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ed7i k\u1ebft n\u1ed1i do ch\u1eb7n port g\u00e2y ra.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tinh-toan-ven-du-lieu\"><\/span>T\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Giao th\u1ee9c SFTP ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a file sau khi truy\u1ec1n t\u1ea3i. B\u1ea1n c\u00f3 th\u1ec3 y\u00ean t\u00e2m r\u1eb1ng file upload l\u00ean server gi\u1ed1ng ho\u00e0n to\u00e0n v\u1edbi file g\u1ed1c tr\u00ean m\u00e1y t\u00ednh, kh\u00f4ng b\u1ecb l\u1ed7i h\u1ecfng h\u00f3c hay thay \u0111\u1ed5i d\u1eef li\u1ec7u ng\u1ea7m.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27831\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-03.jpg\" alt=\"Secure File Transfer Protocol (SFTP) 03\" width=\"750\" height=\"469\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-03.jpg 750w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-03-300x188.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>S\u1eed d\u1ee5ng SFTP \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi b\u1ea1n qu\u1ea3n l\u00fd website qua hosting, c\u1ea7n t\u1ea3i l\u00ean m\u00e3 ngu\u1ed3n, c\u1ea5u h\u00ecnh, ho\u1eb7c sao l\u01b0u d\u1eef li\u1ec7u. Vi\u1ec7c \u0111\u1ec3 l\u1ed9 th\u00f4ng tin \u0111\u0103ng nh\u1eadp FTP c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c website b\u1ecb hack, c\u00e0i m\u00e3 \u0111\u1ed9c ho\u1eb7c m\u1ea5t d\u1eef li\u1ec7u ho\u00e0n to\u00e0n.<\/p>\n<p>Ngay c\u1ea3 khi b\u1ea1n ch\u1ec9 truy\u1ec1n c\u00e1c file kh\u00f4ng qu\u00e1 nh\u1ea1y c\u1ea3m, vi\u1ec7c s\u1eed d\u1ee5ng SFTP Server v\u1eabn l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh t\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n chung v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u (n\u1ebfu c\u00f3).<\/p>\n<div class=\"highlight-cta-box\" style=\"background: #f4f6f8; border: 1px solid #d1d9e6; padding: 25px; text-align: center; border-radius: 8px; margin: 30px 0; box-shadow: 0 4px 6px rgba(0,0,0,0.05);\">\n<h3 style=\"color: #0056b3; margin-top: 0; font-weight: bold; font-size: 20px;\"><span class=\"ez-toc-section\" id=\"Du-lieu-quan-trong-can-ha-tang-bao-mat-cao\"><\/span>D\u1eef li\u1ec7u quan tr\u1ecdng c\u1ea7n h\u1ea1 t\u1ea7ng b\u1ea3o m\u1eadt cao?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-bottom: 20px; color: #333;\">Vi\u1ec7c s\u1eed d\u1ee5ng SFTP ch\u1ec9 l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u. \u0110\u1ec3 b\u1ea3o v\u1ec7 to\u00e0n di\u1ec7n h\u1ec7 th\u1ed1ng, b\u1ea1n c\u1ea7n m\u1ed9t n\u1ec1n t\u1ea3ng VPS m\u1ea1nh m\u1ebd, h\u1ed7 tr\u1ee3 to\u00e0n quy\u1ec1n qu\u1ea3n tr\u1ecb (<a href=\"https:\/\/interdata.vn\/blog\/root-access-la-gi\/\">Root Access<\/a>) \u0111\u1ec3 c\u1ea5u h\u00ecnh SSH Key v\u00e0 Firewall ch\u1ee7 \u0111\u1ed9ng. InterData cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p VPS ch\u1ea5t l\u01b0\u1ee3ng cao, t\u1ed1i \u01b0u s\u1eb5n cho b\u1ea3o m\u1eadt.<\/p>\n<div style=\"display: flex; gap: 15px; justify-content: center; flex-wrap: wrap;\"><a class=\"cta-button\" style=\"background-color: #dc3545; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: bold; transition: all 0.3s;\" href=\"https:\/\/interdata.vn\/platinum\/\">\ud83d\ude80 Thu\u00ea VPS Platinum<\/a><a class=\"cta-button\" style=\"background-color: #28a745; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: bold; transition: all 0.3s;\" href=\"https:\/\/interdata.vn\/vps-linux\/\">\ud83d\udee1\ufe0f Xem VPS Linux (Full Root)<\/a><\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-SFTP-FTP-va-FTPS-Su-khac-biet-la-gi\"><\/span>So s\u00e1nh SFTP, FTP v\u00e0 FTPS: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng nh\u1ea7m l\u1eabn gi\u1eefa ba kh\u00e1i ni\u1ec7m FTP, FTPS v\u00e0 SFTP. Vi\u1ec7c hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a t\u1eebng giao th\u1ee9c gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p cho h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n<p>B\u00e2y gi\u1edd, h\u00e3y \u0111i v\u00e0o chi ti\u1ebft t\u1eebng c\u1eb7p so s\u00e1nh:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"SFTP-vs-FTP\"><\/span>SFTP vs FTP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 s\u1ef1 so s\u00e1nh quan tr\u1ecdng nh\u1ea5t v\u1ec1 m\u1eb7t b\u1ea3o m\u1eadt.<\/p>\n<ul>\n<li><strong>B\u1ea3o m\u1eadt:<\/strong> \u0110i\u1ec3m kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t. SFTP <strong>an to\u00e0n<\/strong> nh\u1edd m\u00e3 h\u00f3a qua SSH. FTP <strong>kh\u00f4ng an to\u00e0n<\/strong>, truy\u1ec1n m\u1ecdi th\u1ee9 d\u1ea1ng plain text, d\u1ec5 b\u1ecb nghe l\u00e9n.<\/li>\n<li><strong>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng:<\/strong> SFTP l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a b\u1ed9 giao th\u1ee9c SSH, ch\u1ea1y tr\u00ean m\u1ed9t k\u1ebft n\u1ed1i SSH \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a. FTP l\u00e0 m\u1ed9t giao th\u1ee9c \u0111\u1ed9c l\u1eadp, ch\u1ea1y tr\u1ef1c ti\u1ebfp tr\u00ean TCP\/IP.<\/li>\n<li><strong>C\u1ed5ng k\u1ebft n\u1ed1i:<\/strong> SFTP th\u01b0\u1eddng ch\u1ec9 s\u1eed d\u1ee5ng m\u1ed9t c\u1ed5ng duy nh\u1ea5t l\u00e0 <strong>22<\/strong> cho c\u1ea3 l\u1ec7nh v\u00e0 d\u1eef li\u1ec7u. FTP s\u1eed d\u1ee5ng c\u1ed5ng <strong>21<\/strong> cho l\u1ec7nh v\u00e0 m\u1ed9t c\u1ed5ng kh\u00e1c (th\u01b0\u1eddng l\u00e0 20 ho\u1eb7c m\u1ed9t c\u1ed5ng \u0111\u1ed9ng) cho d\u1eef li\u1ec7u, g\u00e2y kh\u00f3 kh\u0103n h\u01a1n cho c\u1ea5u h\u00ecnh firewall.<\/li>\n<li><strong>Hi\u1ec7u su\u1ea5t:<\/strong> Do ph\u1ea3i m\u00e3 h\u00f3a\/gi\u1ea3i m\u00e3, SFTP c\u00f3 th\u1ec3 ch\u1eadm h\u01a1n FTP m\u1ed9t ch\u00fat trong vi\u1ec7c truy\u1ec1n file l\u1edbn. Tuy nhi\u00ean, s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i n\u00e0y ho\u00e0n to\u00e0n x\u1ee9ng \u0111\u00e1ng v\u00ec l\u1ee3i \u00edch b\u1ea3o m\u1eadt.<\/li>\n<\/ul>\n<p><strong>=&gt; L\u1eddi khuy\u00ean:<\/strong> Lu\u00f4n \u01b0u ti\u00ean s\u1eed d\u1ee5ng SFTP thay v\u00ec FTP b\u1ea5t c\u1ee9 khi n\u00e0o c\u00f3 th\u1ec3, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi truy\u1ec1n d\u1eef li\u1ec7u qua m\u1ea1ng c\u00f4ng c\u1ed9ng nh\u01b0 Internet. FTP ch\u1ec9 n\u00ean d\u00f9ng trong m\u1ea1ng n\u1ed9i b\u1ed9 r\u1ea5t an to\u00e0n (hi\u1ebfm khi) ho\u1eb7c cho d\u1eef li\u1ec7u ho\u00e0n to\u00e0n kh\u00f4ng nh\u1ea1y c\u1ea3m.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"SFTP-vs-FTPS\"><\/span>SFTP vs FTPS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u1ea3 SFTP v\u00e0 FTPS \u0111\u1ec1u l\u00e0 c\u00e1c giao th\u1ee9c truy\u1ec1n file an to\u00e0n, nh\u01b0ng ch\u00fang kh\u00e1c nhau v\u1ec1 c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng.<\/p>\n<ul>\n<li><strong>Giao th\u1ee9c b\u1ea3o m\u1eadt:<\/strong> SFTP s\u1eed d\u1ee5ng <strong>SSH<\/strong> \u0111\u1ec3 b\u1ea3o m\u1eadt k\u1ebft n\u1ed1i. FTPS s\u1eed d\u1ee5ng <strong>SSL\/TLS<\/strong> (c\u00f9ng c\u00f4ng ngh\u1ec7 b\u1ea3o m\u1eadt v\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/giao-thuc-https-la-gi\/\">HTTPS<\/a> c\u1ee7a website) \u0111\u1ec3 m\u00e3 h\u00f3a k\u1ebft n\u1ed1i FTP.<\/li>\n<li><strong>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng:<\/strong> SFTP l\u00e0 m\u1ed9t giao th\u1ee9c ho\u00e0n to\u00e0n kh\u00e1c bi\u1ec7t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1eeb \u0111\u1ea7u \u0111\u1ec3 ch\u1ea1y tr\u00ean SSH. FTPS th\u1ef1c ch\u1ea5t l\u00e0 giao th\u1ee9c FTP g\u1ed1c \u0111\u01b0\u1ee3c &#8220;b\u1ecdc&#8221; th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt SSL\/TLS.<\/li>\n<li><strong>C\u1ed5ng k\u1ebft n\u1ed1i:<\/strong> SFTP th\u01b0\u1eddng d\u00f9ng c\u1ed5ng <strong>22<\/strong>. FTPS c\u00f3 hai ch\u1ebf \u0111\u1ed9: <strong>Implicit<\/strong> (th\u01b0\u1eddng d\u00f9ng c\u1ed5ng 990 cho l\u1ec7nh, 989 cho d\u1eef li\u1ec7u, k\u1ebft n\u1ed1i SSL\/TLS \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp ngay t\u1eeb \u0111\u1ea7u) v\u00e0 <strong>Explicit<\/strong> (d\u00f9ng c\u1ed5ng 21 nh\u01b0 FTP, sau \u0111\u00f3 n\u00e2ng c\u1ea5p l\u00ean SSL\/TLS qua l\u1ec7nh, th\u01b0\u1eddng c\u1ea7n m\u1edf nhi\u1ec1u c\u1ed5ng \u0111\u1ed9ng tr\u00ean firewall).<\/li>\n<li><strong>X\u00e1c th\u1ef1c m\u00e1y ch\u1ee7:<\/strong> SFTP d\u00f9ng SSH host key. FTPS d\u00f9ng <a href=\"https:\/\/interdata.vn\/blog\/chung-chi-ssl\/\">ch\u1ee9ng ch\u1ec9 SSL<\/a>\/TLS (gi\u1ed1ng nh\u01b0 website).<\/li>\n<li><strong>Firewall:<\/strong> SFTP th\u01b0\u1eddng d\u1ec5 c\u1ea5u h\u00ecnh firewall h\u01a1n do ch\u1ec9 c\u1ea7n m\u1edf c\u1ed5ng 22. FTPS, \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u1ebf \u0111\u1ed9 Explicit, c\u00f3 th\u1ec3 y\u00eau c\u1ea7u m\u1edf nhi\u1ec1u c\u1ed5ng ho\u1eb7c c\u1ea5u h\u00ecnh firewall ph\u1ee9c t\u1ea1p h\u01a1n.<\/li>\n<li><strong>H\u1ed7 tr\u1ee3:<\/strong> H\u1ea7u h\u1ebft c\u00e1c m\u00e1y ch\u1ee7 v\u00e0 client hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u h\u1ed7 tr\u1ee3 c\u1ea3 SFTP v\u00e0 FTPS. Tuy nhi\u00ean, SFTP \u0111\u00f4i khi \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n trong m\u00f4i tr\u01b0\u1eddng qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng Linux\/Unix do g\u1eafn li\u1ec1n v\u1edbi SSH.<\/li>\n<\/ul>\n<p><strong>=&gt; L\u1eddi khuy\u00ean:<\/strong> C\u1ea3 SFTP v\u00e0 FTPS \u0111\u1ec1u an to\u00e0n. Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa ch\u00fang th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng, ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt c\u1ee7a t\u1ed5 ch\u1ee9c ho\u1eb7c s\u1ef1 h\u1ed7 tr\u1ee3 t\u1eeb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 (v\u00ed d\u1ee5: hosting). SFTP th\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1ec1 m\u1eb7t c\u1ea5u h\u00ecnh c\u1ed5ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bang-so-sanh-chi-tiet-cac-thong-so-ky-thuat\"><\/span><strong style=\"color: #555555; font-size: 14.4px;\">B\u1ea3ng so s\u00e1nh chi ti\u1ebft c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh nhanh c\u00e1c \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh:<\/p>\n<div style=\"overflow-x: auto; margin: 20px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; text-align: center; min-width: 900px;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg, #0C40F4, #077FFA, #0497FC); color: #ffffff;\">\n<th style=\"padding: 14px; border: 1px solid #e5e7eb;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"padding: 14px; border: 1px solid #e5e7eb;\">FTP (C\u0169)<\/th>\n<th style=\"padding: 14px; border: 1px solid #e5e7eb;\">FTPS (FTP over SSL)<\/th>\n<th style=\"padding: 14px; border: 1px solid #e5e7eb;\">SFTP (SSH FTP)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: bold;\">B\u1ea3o m\u1eadt<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Th\u1ea5p (Plain text)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Cao (SSL\/TLS Certificate)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">R\u1ea5t cao (SSH Protocol)<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: bold;\">C\u1ed5ng m\u1eb7c \u0111\u1ecbnh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Port 21<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Port 990 (Implicit) ho\u1eb7c 21<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Port 22<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: bold;\">S\u1ed1 l\u01b0\u1ee3ng k\u00eanh<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">2 (Command &amp; Data)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">2 (Command &amp; Data)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">1 (Multiplexed)<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fbff;\">\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: bold;\">C\u1ea5u h\u00ecnh Firewall<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Ph\u1ee9c t\u1ea1p (C\u1ea7n m\u1edf d\u1ea3i port passive)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Ph\u1ee9c t\u1ea1p<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">\u0110\u01a1n gi\u1ea3n (Ch\u1ec9 1 port)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb; font-weight: bold;\">X\u00e1c th\u1ef1c<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Password<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Password + Certificate<\/td>\n<td style=\"padding: 12px; border: 1px solid #e5e7eb;\">Password + SSH Key<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Khi-nao-ban-can-dung-SFTP\"><\/span>Khi n\u00e0o b\u1ea1n c\u1ea7n d\u00f9ng SFTP?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SFTP l\u00e0 c\u00f4ng c\u1ee5 h\u1eefu \u00edch trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng \u0111\u00f2i h\u1ecfi vi\u1ec7c truy\u1ec1n file an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn b\u1ea1n n\u00ean s\u1eed d\u1ee5ng SFTP:<\/p>\n<ul>\n<li><strong>Qu\u1ea3n l\u00fd file tr\u00ean <a href=\"https:\/\/interdata.vn\/blog\/web-hosting-la-gi\/\">Web Hosting<\/a>:<\/strong> \u0110\u00e2y l\u00e0 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. Khi b\u1ea1n c\u1ea7n t\u1ea3i l\u00ean m\u00e3 ngu\u1ed3n website, <a href=\"https:\/\/interdata.vn\/blog\/theme-la-gi\/\">theme<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/plugin-la-gi\/\">plugin<\/a>, h\u00ecnh \u1ea3nh, ho\u1eb7c t\u1ea3i v\u1ec1 c\u00e1c file log, file c\u1ea5u h\u00ecnh t\u1eeb t\u00e0i kho\u1ea3n hosting c\u1ee7a m\u00ecnh, SFTP l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n nh\u1ea5t. H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p hosting uy t\u00edn \u0111\u1ec1u h\u1ed7 tr\u1ee3 SFTP.<\/li>\n<li><strong>C\u1eadp nh\u1eadt v\u00e0 b\u1ea3o tr\u00ec Website:<\/strong> Vi\u1ec7c s\u1eed d\u1ee5ng SFTP \u0111\u1ea3m b\u1ea3o c\u00e1c file quan tr\u1ecdng c\u1ee7a website kh\u00f4ng b\u1ecb l\u1ed9 ho\u1eb7c thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh c\u1eadp nh\u1eadt, gi\u00fap duy tr\u00ec t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o m\u1eadt cho <a href=\"https:\/\/interdata.vn\/blog\/page-la-gi\/\">trang web<\/a>.<\/li>\n<li><strong>Sao l\u01b0u (Backup) Website An to\u00e0n:<\/strong> Khi b\u1ea1n c\u1ea7n t\u1ea3i b\u1ea3n sao l\u01b0u d\u1eef li\u1ec7u website t\u1eeb server v\u1ec1 m\u00e1y t\u00ednh c\u00e1 nh\u00e2n, SFTP \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra an to\u00e0n, b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u sao l\u01b0u c\u1ee7a b\u1ea1n.<\/li>\n<li><strong>Truy\u1ec1n d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m:<\/strong> B\u1ea5t c\u1ee9 khi n\u00e0o b\u1ea1n c\u1ea7n g\u1eedi ho\u1eb7c nh\u1eadn c\u00e1c t\u1ec7p tin ch\u1ee9a th\u00f4ng tin nh\u1ea1y c\u1ea3m (h\u1ee3p \u0111\u1ed3ng, d\u1eef li\u1ec7u t\u00e0i ch\u00ednh, th\u00f4ng tin c\u00e1 nh\u00e2n&#8230;), SFTP cung c\u1ea5p k\u00eanh truy\u1ec1n \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0.<\/li>\n<li><strong>L\u00e0m vi\u1ec7c v\u1edbi m\u00e1y ch\u1ee7 Linux\/Unix:<\/strong> V\u00ec SFTP l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a SSH, giao th\u1ee9c truy c\u1eadp d\u00f2ng l\u1ec7nh ti\u00eau chu\u1ea9n tr\u00ean Linux\/Unix, n\u00ean vi\u1ec7c s\u1eed d\u1ee5ng SFTP r\u1ea5t t\u1ef1 nhi\u00ean v\u00e0 ph\u1ed5 bi\u1ebfn khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c m\u00e1y ch\u1ee7 n\u00e0y, k\u1ec3 c\u1ea3 VPS hay <a href=\"https:\/\/interdata.vn\/blog\/dedicated-server-la-gi\/\">Dedicated Server<\/a>.<\/li>\n<li><strong>T\u1ef1 \u0111\u1ed9ng h\u00f3a t\u00e1c v\u1ee5 truy\u1ec1n file:<\/strong> Nhi\u1ec1u c\u00f4ng c\u1ee5 v\u00e0 script t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng SFTP \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 truy\u1ec1n file \u0111\u1ecbnh k\u1ef3 (v\u00ed d\u1ee5: t\u1ef1 \u0111\u1ed9ng t\u1ea3i b\u00e1o c\u00e1o h\u00e0ng ng\u00e0y t\u1eeb server v\u1ec1).<\/li>\n<\/ul>\n<p>V\u1ec1 c\u01a1 b\u1ea3n, b\u1ea5t c\u1ee9 khi n\u00e0o b\u1ea1n c\u1ea7n truy\u1ec1n file qua m\u1ea1ng Internet ho\u1eb7c b\u1ea5t k\u1ef3 m\u1ea1ng n\u00e0o b\u1ea1n kh\u00f4ng ho\u00e0n to\u00e0n ki\u1ec3m so\u00e1t, v\u00e0 b\u1ea1n quan t\u00e2m \u0111\u1ebfn vi\u1ec7c b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u \u0111\u00f3, SFTP l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u.<\/p>\n<p>Qu\u1ea3n l\u00fd file website an to\u00e0n b\u1eb1ng SFTP \u0111\u00f2i h\u1ecfi m\u1ed9t n\u1ec1n t\u1ea3ng hosting th\u1ef1c s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 m\u1ea1nh m\u1ebd. B\u1ea1n c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc d\u1ecbch v\u1ee5 <strong><a href=\"https:\/\/interdata.vn\/thue-hosting\/\" target=\"_blank\" rel=\"noopener noreferrer\">thu\u00ea Hosting<\/a><\/strong> ch\u1ea5t l\u01b0\u1ee3ng cao t\u1ea1i InterData ch\u1ec9 t\u1eeb 1K\/ng\u00e0y. H\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng chuy\u00ean d\u1ee5ng v\u1edbi b\u1ed9 x\u1eed l\u00fd <a href=\"https:\/\/interdata.vn\/blog\/cpu-amd-epyc\/\">AMD EPYC<\/a> Gen 3th, <a href=\"https:\/\/interdata.vn\/blog\/o-cung-ssd-nvme-la-gi\/\">\u1ed5 c\u1ee9ng SSD NVMe<\/a> U.2 cho t\u1ed1c \u0111\u1ed9 v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1ea3m b\u1ea3o website ho\u1ea1t \u0111\u1ed9ng uy t\u00edn, \u0111\u00e1ng tin c\u1eady.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27832\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-04.jpg\" alt=\"Secure File Transfer Protocol (SFTP) 04\" width=\"750\" height=\"375\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-04.jpg 750w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-04-300x150.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-04-360x180.jpg 360w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Huong-dan-su-dung-SFTP-co-ban\"><\/span>H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng SFTP c\u01a1 b\u1ea3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng SFTP, b\u1ea1n kh\u00f4ng c\u1ea7n l\u00e0 m\u1ed9t chuy\u00ean gia m\u1ea1ng. Qu\u00e1 tr\u00ecnh n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n n\u1ebfu b\u1ea1n c\u00f3 \u0111\u1ee7 th\u00f4ng tin c\u1ea7n thi\u1ebft v\u00e0 m\u1ed9t ph\u1ea7n m\u1ec1m SFTP client ph\u00f9 h\u1ee3p.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27830\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-02.jpg\" alt=\"Secure File Transfer Protocol (SFTP) 02\" width=\"750\" height=\"484\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-02.jpg 750w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/05\/Secure-File-Transfer-Protocol-SFTP-02-300x194.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cac-thong-tin-can-thiet-de-ket-noi-SFTP\"><\/span>C\u00e1c th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u1ebft n\u1ed1i SFTP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u01b0\u1edbc khi k\u1ebft n\u1ed1i, b\u1ea1n c\u1ea7n thu th\u1eadp c\u00e1c th\u00f4ng tin sau t\u1eeb qu\u1ea3n tr\u1ecb vi\u00ean m\u00e1y ch\u1ee7 ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 hosting c\u1ee7a b\u1ea1n:<\/p>\n<ol>\n<li><strong>\u0110\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 (Hostname ho\u1eb7c IP Address):<\/strong> \u0110\u00e2y l\u00e0 \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u00e1y ch\u1ee7 SFTP m\u00e0 b\u1ea1n mu\u1ed1n k\u1ebft n\u1ed1i t\u1edbi. C\u00f3 th\u1ec3 l\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/domain-la-gi\/\">t\u00ean mi\u1ec1n<\/a> (v\u00ed d\u1ee5: <code>sftp.yourdomain.com<\/code>) ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/dia-chi-ip-la-gi\/\">\u0111\u1ecba ch\u1ec9 IP<\/a> (v\u00ed d\u1ee5: <code>192.168.1.100<\/code>).<\/li>\n<li><strong>S\u1ed1 c\u1ed5ng (Port Number):<\/strong> C\u1ed5ng m\u1ea1ng m\u00e0 m\u00e1y ch\u1ee7 SFTP \u0111ang l\u1eafng nghe k\u1ebft n\u1ed1i. M\u1eb7c \u0111\u1ecbnh cho SFTP l\u00e0 <strong>22<\/strong>. N\u1ebfu nh\u00e0 cung c\u1ea5p c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng c\u1ed5ng kh\u00e1c, h\u1ecd s\u1ebd th\u00f4ng b\u00e1o cho b\u1ea1n.<\/li>\n<li><strong>T\u00ean ng\u01b0\u1eddi d\u00f9ng (Username):<\/strong> T\u00ean t\u00e0i kho\u1ea3n \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p truy c\u1eadp SFTP tr\u00ean m\u00e1y ch\u1ee7.<\/li>\n<li><strong>Ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c:<\/strong>\n<ul>\n<li><strong>M\u1eadt kh\u1ea9u (Password):<\/strong> M\u1eadt kh\u1ea9u t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00ean ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n.<\/li>\n<li><i>Ho\u1eb7c<\/i> <strong>Kh\u00f3a SSH (SSH Key):<\/strong> N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c b\u1eb1ng kh\u00f3a, b\u1ea1n c\u1ea7n c\u00f3 t\u1ec7p kh\u00f3a b\u00ed m\u1eadt (private key) tr\u00ean m\u00e1y t\u00ednh c\u1ee7a m\u00ecnh v\u00e0 kh\u00f3a c\u00f4ng khai (public key) \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u00ean m\u00e1y ch\u1ee7.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>H\u00e3y \u0111\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 \u0111\u1ea7y \u0111\u1ee7 v\u00e0 ch\u00ednh x\u00e1c c\u00e1c th\u00f4ng tin n\u00e0y. Thi\u1ebfu ho\u1eb7c sai m\u1ed9t th\u00f4ng tin s\u1ebd khi\u1ebfn k\u1ebft n\u1ed1i th\u1ea5t b\u1ea1i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mot-so-phan-mem-SFTP-Client-pho-bien\"><\/span>M\u1ed9t s\u1ed1 ph\u1ea7n m\u1ec1m SFTP Client ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3 r\u1ea5t nhi\u1ec1u ph\u1ea7n m\u1ec1m SFTP client, c\u1ea3 mi\u1ec5n ph\u00ed v\u00e0 tr\u1ea3 ph\u00ed. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t v\u00e0i l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao:<\/p>\n<ol>\n<li><strong><a href=\"https:\/\/interdata.vn\/blog\/filezilla-la-gi\/\">FileZilla<\/a>:<\/strong>\n<ul>\n<li>Ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed, <a href=\"https:\/\/interdata.vn\/blog\/open-source-la-gi\/\">m\u00e3 ngu\u1ed3n m\u1edf<\/a>.<\/li>\n<li>H\u1ed7 tr\u1ee3 \u0111a n\u1ec1n t\u1ea3ng (Windows, macOS, <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh-linux-la-gi\/\">Linux<\/a>).<\/li>\n<li>Giao di\u1ec7n tr\u1ef1c quan v\u1edbi hai khung (local &#8211; m\u00e1y b\u1ea1n, remote &#8211; m\u00e1y ch\u1ee7), d\u1ec5 d\u00e0ng k\u00e9o th\u1ea3 file.<\/li>\n<li>H\u1ed7 tr\u1ee3 SFTP, FTP, FTPS.<\/li>\n<li>Website: <a href=\"https:\/\/filezilla-project.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/filezilla-project.org\/<\/a><\/li>\n<\/ul>\n<\/li>\n<li><strong><a href=\"https:\/\/interdata.vn\/blog\/winscp-la-gi\/\">WinSCP<\/a>:<\/strong>\n<ul>\n<li>Mi\u1ec5n ph\u00ed, m\u00e3 ngu\u1ed3n m\u1edf.<\/li>\n<li>Ch\u1ec9 d\u00e0nh cho <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh\/\">h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/a> Windows.<\/li>\n<li>Giao di\u1ec7n linh ho\u1ea1t (ki\u1ec3u Norton Commander ho\u1eb7c Explorer).<\/li>\n<li>H\u1ed7 tr\u1ee3 SFTP, SCP, FTP, WebDAV, S3.<\/li>\n<li>T\u00edch h\u1ee3p tr\u00ecnh so\u1ea1n th\u1ea3o v\u0103n b\u1ea3n, \u0111\u1ed3ng b\u1ed9 h\u00f3a th\u01b0 m\u1ee5c, scripting m\u1ea1nh m\u1ebd.<\/li>\n<li>Website: <a href=\"https:\/\/winscp.net\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/winscp.net\/<\/a><\/li>\n<\/ul>\n<\/li>\n<li><strong>Cyberduck:<\/strong>\n<ul>\n<li>Mi\u1ec5n ph\u00ed (c\u00f3 t\u00f9y ch\u1ecdn \u1ee7ng h\u1ed9), m\u00e3 ngu\u1ed3n m\u1edf.<\/li>\n<li>H\u1ed7 tr\u1ee3 Windows v\u00e0 macOS.<\/li>\n<li>Giao di\u1ec7n \u0111\u01a1n gi\u1ea3n, d\u1ec5 s\u1eed d\u1ee5ng.<\/li>\n<li>K\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi SFTP, FTP, WebDAV, Amazon S3, Google Drive, Dropbox v\u00e0 nhi\u1ec1u d\u1ecbch v\u1ee5 <a href=\"https:\/\/interdata.vn\/blog\/cloud-storage-la-gi\/\">l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y<\/a> kh\u00e1c.<\/li>\n<li>T\u00edch h\u1ee3p t\u1ed1t v\u1edbi c\u00e1c tr\u00ecnh so\u1ea1n th\u1ea3o b\u00ean ngo\u00e0i.<\/li>\n<li>Website: <a href=\"https:\/\/cyberduck.io\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/cyberduck.io\/<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><strong>C\u00e1ch k\u1ebft n\u1ed1i (v\u00ed d\u1ee5 v\u1edbi FileZilla):<\/strong><\/p>\n<ol>\n<li>M\u1edf FileZilla.<\/li>\n<li>Tr\u00ean thanh Quickconnect (K\u1ebft n\u1ed1i nhanh), nh\u1eadp <strong>Host<\/strong> (\u0110\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7), <strong>Username<\/strong>, <strong>Password<\/strong>, <strong>Port<\/strong> (th\u01b0\u1eddng l\u00e0 22).<\/li>\n<li>Nh\u1ea5n n\u00fat <strong>Quickconnect<\/strong>.<\/li>\n<li>N\u1ebfu l\u00e0 l\u1ea7n \u0111\u1ea7u k\u1ebft n\u1ed1i t\u1edbi m\u00e1y ch\u1ee7 n\u00e0y, FileZilla c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o v\u1ec1 &#8220;Unknown host key&#8221;. H\u00e3y ki\u1ec3m tra l\u1ea1i \u0111\u1ecba ch\u1ec9 host, n\u1ebfu \u0111\u00fang, ch\u1ecdn &#8220;Always trust this host, add this key to the cache&#8221; v\u00e0 nh\u1ea5n OK.<\/li>\n<li>N\u1ebfu th\u00f4ng tin ch\u00ednh x\u00e1c, b\u1ea1n s\u1ebd th\u1ea5y c\u00e2y th\u01b0 m\u1ee5c c\u1ee7a m\u00e1y ch\u1ee7 hi\u1ec7n ra \u1edf khung b\u00ean ph\u1ea3i (Remote site). B\u00e2y gi\u1edd b\u1ea1n c\u00f3 th\u1ec3 k\u00e9o th\u1ea3 file gi\u1eefa m\u00e1y t\u00ednh (Local site) v\u00e0 m\u00e1y ch\u1ee7.<\/li>\n<\/ol>\n<p>Qu\u00e1 tr\u00ecnh k\u1ebft n\u1ed1i tr\u00ean c\u00e1c client kh\u00e1c c\u0169ng t\u01b0\u01a1ng t\u1ef1, ch\u1ec9 kh\u00e1c nhau v\u1ec1 giao di\u1ec7n \u0111\u00f4i ch\u00fat.<\/p>\n<div class=\"highlight-cta-box\" style=\"background: #f4f6f8; border: 1px solid #ffe58f; padding: 25px; text-align: center; border-radius: 8px; margin: 30px 0; box-shadow: 0 4px 6px rgba(0,0,0,0.05);\">\n<h3 style=\"color: #0056b3; margin-top: 0; font-weight: bold; font-size: 20px;\"><span class=\"ez-toc-section\" id=\"Can-VPS-on-dinh-gia-tot-de-thuc-hanh\"><\/span>C\u1ea7n VPS \u1ed5n \u0111\u1ecbnh, gi\u00e1 t\u1ed1t \u0111\u1ec3 th\u1ef1c h\u00e0nh?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"margin-bottom: 20px; color: #333;\">N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u00e0 mu\u1ed1n t\u00ecm m\u1ed9t m\u00f4i tr\u01b0\u1eddng VPS chi ph\u00ed th\u1ea5p \u0111\u1ec3 l\u00e0m quen v\u1edbi SFTP, Linux v\u00e0 qu\u1ea3n tr\u1ecb web, h\u00e3y tham kh\u1ea3o ngay c\u00e1c g\u00f3i VPS gi\u00e1 r\u1ebb t\u1ea1i InterData. Ch\u00fang t\u00f4i h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7 \u0111\u1ec3 gi\u1ea3i quy\u1ebft m\u1ecdi v\u1ea5n \u0111\u1ec1 k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n.<\/p>\n<div style=\"display: flex; gap: 15px; justify-content: center; flex-wrap: wrap;\"><a class=\"cta-button\" style=\"background-color: #dc3545; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: bold; transition: all 0.3s;\" href=\"https:\/\/interdata.vn\/thue-vps\/\">\ud83d\udc49 Thu\u00ea VPS Gi\u00e1 R\u1ebb Ngay<\/a><br \/>\n<a class=\"cta-button\" style=\"background-color: #28a745; color: white; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: bold; transition: all 0.3s;\" href=\"https:\/\/interdata.vn\/canhme\/\">\ud83c\udf81 S\u0103n Khuy\u1ebfn M\u00e3i VPS M\u1edbi Nh\u1ea5t<\/a><\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Top-3-Phan-mem-SFTP-Client-tot-nhat-hien-nay\"><\/span>Top 3 Ph\u1ea7n m\u1ec1m SFTP Client t\u1ed1t nh\u1ea5t hi\u1ec7n nay<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 k\u1ebft n\u1ed1i v\u1edbi SFTP Server, b\u1ea1n c\u1ea7n c\u00e0i \u0111\u1eb7t m\u1ed9t ph\u1ea7n m\u1ec1m Client tr\u00ean m\u00e1y t\u00ednh c\u00e1 nh\u00e2n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 3 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn v\u00e0 \u1ed5n \u0111\u1ecbnh nh\u1ea5t:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"FileZilla\"><\/span>FileZilla<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 ph\u1ea7n m\u1ec1m FTP\/SFTP m\u00e3 ngu\u1ed3n m\u1edf ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi. FileZilla h\u1ed7 tr\u1ee3 \u0111a n\u1ec1n t\u1ea3ng (Windows, macOS, Linux), c\u00f3 giao di\u1ec7n tr\u1ef1c quan v\u1edbi kh\u1ea3 n\u0103ng k\u00e9o th\u1ea3 (drag-and-drop) ti\u1ec7n l\u1ee3i. Phi\u00ean b\u1ea3n mi\u1ec5n ph\u00ed c\u1ee7a FileZilla \u0111\u00e3 h\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 giao th\u1ee9c SFTP.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"WinSCP\"><\/span>WinSCP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>WinSCP l\u00e0 \u1ee9ng d\u1ee5ng chuy\u00ean d\u1ee5ng cho m\u00f4i tr\u01b0\u1eddng Windows. \u0110i\u1ec3m m\u1ea1nh c\u1ee7a WinSCP l\u00e0 t\u00edch h\u1ee3p s\u00e2u v\u00e0o h\u1ec7 \u0111i\u1ec1u h\u00e0nh, h\u1ed7 tr\u1ee3 giao di\u1ec7n Commander (hai b\u1ea3ng song song) gi\u00fap qu\u1ea3n l\u00fd file c\u1ef1c nhanh. N\u00f3 c\u0169ng t\u00edch h\u1ee3p s\u1eb5n tr\u00ecnh so\u1ea1n th\u1ea3o v\u0103n b\u1ea3n \u0111\u1ec3 s\u1eeda code tr\u1ef1c ti\u1ebfp tr\u00ean server.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cyberduck\"><\/span>Cyberduck<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng macOS, Cyberduck l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u v\u1ec1 giao di\u1ec7n (UI\/UX). Ph\u1ea7n m\u1ec1m n\u00e0y h\u1ed7 tr\u1ee3 kh\u00f4ng ch\u1ec9 SFTP m\u00e0 c\u00f2n k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y nh\u01b0 Google Drive, Dropbox hay Amazon S3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cau-hoi-thuong-gap-ve-SFTP-FAQ\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 SFTP (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 SFTP v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi ng\u1eafn g\u1ecdn:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-SFTP-co-mien-phi-khong\"><\/span>1. SFTP c\u00f3 mi\u1ec5n ph\u00ed kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ea3n th\u00e2n giao th\u1ee9c SFTP l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n m\u1edf, kh\u00f4ng t\u1ed1n ph\u00ed. Tuy nhi\u00ean, b\u1ea1n c\u1ea7n ph\u1ea7n m\u1ec1m (SFTP client) \u0111\u1ec3 s\u1eed d\u1ee5ng. C\u00f3 r\u1ea5t nhi\u1ec1u SFTP client <strong>mi\u1ec5n ph\u00ed<\/strong> v\u00e0 m\u00e3 ngu\u1ed3n m\u1edf ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 FileZilla, WinSCP, Cyberduck. M\u00e1y ch\u1ee7 c\u0169ng c\u1ea7n c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m SFTP server (th\u01b0\u1eddng l\u00e0 OpenSSH, c\u0169ng mi\u1ec5n ph\u00ed).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Cong-22-co-phai-la-bat-buoc-cho-SFTP\"><\/span>2. C\u1ed5ng 22 c\u00f3 ph\u1ea3i l\u00e0 b\u1eaft bu\u1ed9c cho SFTP?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Kh\u00f4ng b\u1eaft bu\u1ed9c<\/strong>, nh\u01b0ng <strong>22 l\u00e0 c\u1ed5ng m\u1eb7c \u0111\u1ecbnh<\/strong> \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n h\u00f3a cho c\u1ea3 SSH v\u00e0 SFTP. H\u1ea7u h\u1ebft c\u00e1c m\u00e1y ch\u1ee7 SFTP \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 l\u1eafng nghe tr\u00ean c\u1ed5ng 22. Tuy nhi\u00ean, v\u00ec l\u00fd do b\u1ea3o m\u1eadt ho\u1eb7c tr\u00e1nh xung \u0111\u1ed9t, qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 thay \u0111\u1ed5i sang m\u1ed9t c\u1ed5ng kh\u00e1c. N\u1ebfu c\u1ed5ng kh\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, b\u1ea1n c\u1ea7n ch\u1ec9 \u0111\u1ecbnh r\u00f5 s\u1ed1 c\u1ed5ng \u0111\u00f3 khi k\u1ebft n\u1ed1i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-Lam-sao-de-lay-thong-tin-SFTP-tu-nha-cung-cap-hosting\"><\/span>3. L\u00e0m sao \u0111\u1ec3 l\u1ea5y th\u00f4ng tin SFTP t\u1eeb nh\u00e0 cung c\u1ea5p hosting?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Th\u00f4ng th\u01b0\u1eddng, nh\u00e0 cung c\u1ea5p hosting s\u1ebd g\u1eedi th\u00f4ng tin \u0111\u0103ng nh\u1eadp SFTP (Host, Username, Password, Port) cho b\u1ea1n qua email khi b\u1ea1n \u0111\u0103ng k\u00fd d\u1ecbch v\u1ee5. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y th\u00f4ng tin n\u00e0y trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n t\u00e0i kho\u1ea3n hosting (v\u00ed d\u1ee5: <a href=\"https:\/\/interdata.vn\/blog\/cpanel\/\">CPanel<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/directadmin-la-gi\/\">DirectAdmin<\/a>) ho\u1eb7c li\u00ean h\u1ec7 b\u1ed9 ph\u1eadn h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt c\u1ee7a h\u1ecd \u0111\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Co-the-dung-SFTP-tren-dien-thoai-di-dong-khong\"><\/span>4. C\u00f3 th\u1ec3 d\u00f9ng SFTP tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>C\u00f3.<\/strong> C\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng tr\u00ean c\u1ea3 Android v\u00e0 iOS h\u1ed7 tr\u1ee3 k\u1ebft n\u1ed1i SFTP. M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng qu\u1ea3n l\u00fd file ho\u1eb7c tr\u00ecnh so\u1ea1n th\u1ea3o code di \u0111\u1ed9ng c\u0169ng t\u00edch h\u1ee3p s\u1eb5n t\u00ednh n\u0103ng SFTP client, cho ph\u00e9p b\u1ea1n qu\u1ea3n l\u00fd file tr\u00ean server ngay t\u1eeb \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh b\u1ea3ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5-SFTP-co-nhanh-bang-FTP-khong\"><\/span>5. SFTP c\u00f3 nhanh b\u1eb1ng FTP kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Th\u01b0\u1eddng th\u00ec <strong>kh\u00f4ng nhanh b\u1eb1ng<\/strong>. Qu\u00e1 tr\u00ecnh m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u trong SFTP l\u00e0m t\u0103ng th\u00eam m\u1ed9t ch\u00fat \u0111\u1ed9 tr\u1ec5 v\u00e0 g\u00e1nh n\u1eb7ng x\u1eed l\u00fd so v\u1edbi FTP (truy\u1ec1n d\u1eef li\u1ec7u th\u00f4). Tuy nhi\u00ean, v\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/network-speed-la-gi\/\">t\u1ed1c \u0111\u1ed9 m\u1ea1ng<\/a> v\u00e0 s\u1ee9c m\u1ea1nh x\u1eed l\u00fd c\u1ee7a m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i, s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u1ed1c \u0111\u1ed9 th\u01b0\u1eddng kh\u00f4ng qu\u00e1 l\u1edbn v\u00e0 ho\u00e0n to\u00e0n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ec3 \u0111\u1ed5i l\u1ea5y s\u1ef1 b\u1ea3o m\u1eadt c\u1ea7n thi\u1ebft.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6-SSH-va-SFTP-co-phai-la-mot-khong\"><\/span>6. SSH v\u00e0 SFTP c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Kh\u00f4ng ho\u00e0n to\u00e0n.<\/strong> SSH (Secure Shell) l\u00e0 m\u1ed9t b\u1ed9 giao th\u1ee9c m\u1ea1ng d\u00f9ng \u0111\u1ec3 t\u1ea1o k\u1ebft n\u1ed1i an to\u00e0n, cho ph\u00e9p truy c\u1eadp d\u00f2ng l\u1ec7nh t\u1eeb xa, chuy\u1ec3n ti\u1ebfp c\u1ed5ng, v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c. SFTP l\u00e0 m\u1ed9t <i>giao th\u1ee9c con<\/i> ch\u1ea1y <i>b\u00ean trong<\/i> m\u1ed9t k\u1ebft n\u1ed1i SSH \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, chuy\u00ean d\u00f9ng cho vi\u1ec7c truy\u1ec1n v\u00e0 qu\u1ea3n l\u00fd file. SFTP c\u1ea7n SSH \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n c\u00e1i nh\u00ecn chi ti\u1ebft v\u00e0 d\u1ec5 hi\u1ec3u v\u1ec1 SFTP l\u00e0 g\u00ec, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, l\u1ee3i \u00edch c\u0169ng nh\u01b0 s\u1ef1 kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c giao th\u1ee9c truy\u1ec1n file kh\u00e1c. Vi\u1ec7c s\u1eed d\u1ee5ng SFTP l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i qua m\u1ea1ng.<\/p>\n<div class=\"contact-box\" style=\"background-color: #f8f9fa; padding: 30px; border-top: 4px solid #0056b3; margin-top: 50px;\">\n<p style=\"margin-top: 0; color: #0056b3; text-transform: uppercase;\"><strong>LI\u00caN H\u1ec6 V\u1edaI INTERDATA<\/strong><\/p>\n<p style=\"margin-bottom: 20px;\">InterData s\u1eb5n s\u00e0ng t\u01b0 v\u1ea5n gi\u1ea3i ph\u00e1p h\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt t\u1ed1i \u01b0u nh\u1ea5t cho nhu c\u1ea7u c\u1ee7a b\u1ea1n.<\/p>\n<ul style=\"list-style: none; padding-left: 0; line-height: 1.8;\">\n<li style=\"margin-bottom: 10px; display: flex; align-items: center;\"><span style=\"font-size: 20px; margin-right: 10px;\">\ud83c\udf10<\/span><br \/>\n<strong>WEBSITE:<\/strong> <a style=\"text-decoration: none; color: #333; margin-left: 5px;\" href=\"https:\/\/interdata.vn\/\" target=\"_blank\" rel=\"noopener\">interdata.vn<\/a><\/li>\n<li style=\"margin-bottom: 10px; display: flex; align-items: center;\"><span style=\"font-size: 20px; margin-right: 10px;\">\u260e\ufe0f<\/span><br \/>\n<strong>HOTLINE:<\/strong> <a style=\"text-decoration: none; color: #d00; font-weight: bold; margin-left: 5px;\" href=\"tel:1900636822\">1900 636 822<\/a><\/li>\n<li style=\"display: flex; align-items: center;\"><strong>FANPAGE:<\/strong> <a style=\"text-decoration: none; color: #333; margin-left: 5px;\" href=\"https:\/\/facebook.com\/interdata.com.vn\" target=\"_blank\" rel=\"noopener\">facebook.com\/interdata.com.vn<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>T\u00f3m t\u1eaft n\u1ed9i dung: SFTP (SSH File Transfer Protocol) l\u00e0 m\u1ed9t giao th\u1ee9c m\u1ea1ng an to\u00e0n ch\u1ea1y tr\u00ean n\u1ec1n t\u1ea3ng SSH, cho ph\u00e9p truy c\u1eadp, truy\u1ec1n t\u1ea3i v\u00e0 qu\u1ea3n l\u00fd t\u1eadp tin gi\u1eefa c\u00e1c m\u00e1y t\u00ednh qua m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ho\u00e0n to\u00e0n. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch s\u00e2u v\u1ec1 c\u01a1 ch\u1ebf<\/p>\n","protected":false},"author":2,"featured_media":27833,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[151],"tags":[],"class_list":["post-27828","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mang"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/27828","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=27828"}],"version-history":[{"count":8,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/27828\/revisions"}],"predecessor-version":[{"id":39378,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/27828\/revisions\/39378"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/27833"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=27828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=27828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=27828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}