{"id":42145,"date":"2026-06-25T15:30:42","date_gmt":"2026-06-25T08:30:42","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=42145"},"modified":"2026-06-25T15:30:42","modified_gmt":"2026-06-25T08:30:42","slug":"kiem-tra-port-dang-mo-tren-windows","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/","title":{"rendered":"C\u00e1ch Ki\u1ec3m Tra Port \u0110ang M\u1edf Tr\u00ean Windows B\u1eb1ng L\u1ec7nh CMD, PID, CurrPorts"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Premium-Base\" >Premium Base<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Premium-Base-2\" >Premium Base<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Premium-Pro\" >Premium Pro<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Cloud-Day-%E2%80%93-Base\" >Cloud-Day &#8211; Base<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#1-Tai-sao-quan-tri-vien-can-kiem-tra-port-dang-mo-tren-Windows\" >1. T\u1ea1i sao qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#2-Huong-dan-cach-kiem-tra-port-dang-mo-tren-Windows\" >2. H\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Kiem-tra-port-dang-mo-bang-CMD\" >Ki\u1ec3m tra port \u0111ang m\u1edf b\u1eb1ng CMD<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Kiem-tra-port-dang-mo-bang-Process-ID-PID\" >Ki\u1ec3m tra port \u0111ang m\u1edf b\u1eb1ng Process ID (PID)<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Su-dung-CurrPorts-de-kiem-tra-port-dang-mo\" >S\u1eed d\u1ee5ng CurrPorts \u0111\u1ec3 ki\u1ec3m tra port \u0111ang m\u1edf<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#3-Tim-ma-PID-va-tat-ung-dung-dang-chiem-cmd-port\" >3. T\u00ecm m\u00e3 PID v\u00e0 t\u1eaft \u1ee9ng d\u1ee5ng \u0111ang chi\u1ebfm cmd port<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Giai-quyet-triet-de-loi-dung-port-moi-truong-Local\" >Gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 l\u1ed7i \u0111\u1ee5ng port m\u00f4i tr\u01b0\u1eddng Local<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#4-Cach-kiem-tra-xem-da-mo-port-modem-thanh-cong-ra-Internet-chua\" >4. C\u00e1ch ki\u1ec3m tra xem \u0111\u00e3 m\u1edf port modem th\u00e0nh c\u00f4ng ra Internet ch\u01b0a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Dung-lenh-telnet-port-tu-mang-noi-bo\" >D\u00f9ng l\u1ec7nh telnet port t\u1eeb m\u1ea1ng n\u1ed9i b\u1ed9<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Dung-cong-cu-check-open-port-truc-tuyen\" >D\u00f9ng c\u00f4ng c\u1ee5 check open port tr\u1ef1c tuy\u1ebfn<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Danh-cho-cac-he-thong-Production-yeu-cau-khat-khe\" >D\u00e0nh cho c\u00e1c h\u1ec7 th\u1ed1ng Production y\u00eau c\u1ea7u kh\u1eaft khe<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#5-Danh-sach-cac-port-mang-pho-bien-va-luu-y-thiet-lap-firewall-port\" >5. Danh s\u00e1ch c\u00e1c port m\u1ea1ng ph\u1ed5 bi\u1ebfn v\u00e0 l\u01b0u \u00fd thi\u1ebft l\u1eadp firewall port<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#6-Cau-hoi-thuong-gap-FAQ-khi-quet-port-va-xu-ly-mang\" >6. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ) khi qu\u00e9t port v\u00e0 x\u1eed l\u00fd m\u1ea1ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Trang-thai-LISTENING-ESTABLISHED-TIME-WAIT-la-gi\" >Tr\u1ea1ng th\u00e1i LISTENING, ESTABLISHED, TIME_WAIT l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Tai-sao-mo-port-modem-xong-check-online-van-bao-Closed\" >T\u1ea1i sao m\u1edf port modem xong check online v\u1eabn b\u00e1o Closed?<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Cach-kiem-tra-cong-mang-bang-PowerShell\" >C\u00e1ch ki\u1ec3m tra c\u1ed5ng m\u1ea1ng b\u1eb1ng PowerShell?<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Co-phan-mem-nao-truc-quan-hon-thay-vi-dung-lenh-netstat-khong\" >C\u00f3 ph\u1ea7n m\u1ec1m n\u00e0o tr\u1ef1c quan h\u01a1n thay v\u00ec d\u00f9ng l\u1ec7nh netstat kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Co-can-khoi-dong-lai-may-tinh-sau-khi-Taskkill-mot-port\" >C\u00f3 c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh sau khi Taskkill m\u1ed9t port?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/kiem-tra-port-dang-mo-tren-windows\/#Tong-ket-va-dinh-huong-quan-tri-mang\" >T\u1ed5ng k\u1ebft v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng qu\u1ea3n tr\u1ecb m\u1ea1ng<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Premium-Base-3\" >Premium Base<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Premium-Base-4\" >Premium Base<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Premium-Pro-2\" >Premium Pro<\/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\/kiem-tra-port-dang-mo-tren-windows\/#Cloud-Day-%E2%80%93-Base-2\" >Cloud-Day &#8211; Base<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n<style>\n.interdata-plan-carousel{--blue:#005bea;--blue-dark:#004dcc;--text:#071832;--border:#d8e6fb;--bg:#f3f8ff;container-type:inline-size;background:var(--bg);padding:14px 12px;overflow:hidden}\n.interdata-carousel-heading{color:#003fbd;font-size:18px;line-height:1.35;font-weight:800;text-align:center;margin:0 0 14px}\n.interdata-plan-track{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:0 0 8px;-webkit-overflow-scrolling:touch;scrollbar-width:none}\n.interdata-plan-track::-webkit-scrollbar{display:none}\n.interdata-plan-card,.interdata-plan-card *{box-sizing:border-box}\n.interdata-plan-card{flex:0 0 calc(25% - 9px);min-width:205px;background:#fff;border:1px solid var(--border);border-radius:8px;padding:18px 14px 14px;min-height:382px;display:flex;flex-direction:column;scroll-snap-align:start;box-shadow:0 5px 14px rgba(0,62,145,.08)}\n.interdata-plan-title{color:var(--blue-dark);font-size:17px;line-height:1.25;font-weight:800;text-align:center;margin:0 0 8px}\n.interdata-plan-price{color:var(--blue-dark);font-size:32px;line-height:1;font-weight:900;text-align:center;margin-bottom:14px;white-space:nowrap;letter-spacing:0}\n.interdata-plan-price span{font-size:12px;font-weight:800;margin-left:2px}\n.interdata-plan-badge{align-self:center;display:inline-flex;align-items:center;justify-content:center;background:#ff3934;color:#fff;border-radius:5px;padding:8px 10px;font-size:10px;line-height:1;font-weight:800;margin-bottom:18px;white-space:nowrap}\n.interdata-plan-features{list-style:none!important;padding:0!important;margin:0!important}\n.interdata-plan-features li{display:flex;gap:8px;align-items:flex-start;color:var(--text);font-size:13px;line-height:1.35;font-weight:700;text-align:left;margin:0 0 11px!important;padding:0!important}\n.interdata-plan-icon{width:15px;min-width:15px;height:15px;color:#0069ff;margin-top:2px}\n.interdata-plan-icon svg{display:block;width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}\n.interdata-plan-spacer{flex:1}\n.interdata-plan-button{display:flex;align-items:center;justify-content:center;min-height:44px;width:100%;background:var(--blue);color:#fff!important;border-radius:5px;font-size:14px;font-weight:800;text-decoration:none!important;box-shadow:0 7px 14px rgba(0,91,234,.24);transition:transform .2s ease,background .2s ease}\n.interdata-plan-button:hover{background:var(--blue-dark);color:#fff!important;transform:translateY(-1px)}\n@container (max-width:860px){.interdata-plan-card{flex-basis:calc(33.333% - 8px);min-width:205px}}\n@container (max-width:640px){.interdata-plan-card{flex-basis:calc(50% - 7px);min-width:215px}}\n@container (max-width:480px){.interdata-plan-carousel{padding:12px 10px}.interdata-carousel-heading{font-size:16px}.interdata-plan-card{flex-basis:86%;min-width:235px}.interdata-plan-price{font-size:31px}}\n@media (max-width:360px){.interdata-plan-card{flex-basis:90%;min-width:220px}.interdata-plan-price{font-size:29px}.interdata-plan-badge{font-size:9px}}\n<\/style>\n\n<div class=\"interdata-plan-carousel\">\n  <div class=\"interdata-carousel-heading\"><span style=\"font-family: Roboto, sans-serif; color: red;\">Si\u00eau \u01afu \u0110\u00e3i VPS \/ CLOUD SERVER - Ti\u1ebft Ki\u1ec7m \u0110\u1ebfn 70%<\/span><\/div>\n\n  <svg width=\"0\" height=\"0\" style=\"position:absolute;visibility:hidden\" aria-hidden=\"true\">\n    <symbol id=\"id-icon-cpu\" viewBox=\"0 0 24 24\"><rect x=\"7\" y=\"7\" width=\"10\" height=\"10\" rx=\"2\"><\/rect><path d=\"M4 9h3M4 15h3M17 9h3M17 15h3M9 4v3M15 4v3M9 17v3M15 17v3\"><\/path><path d=\"M10 10h4v4h-4z\"><\/path><\/symbol>\n    <symbol id=\"id-icon-ram\" viewBox=\"0 0 24 24\"><rect x=\"4\" y=\"8\" width=\"16\" height=\"8\" rx=\"2\"><\/rect><path d=\"M7 16v2M11 16v2M15 16v2M19 16v2M7 11h1M11 11h1M15 11h1\"><\/path><\/symbol>\n    <symbol id=\"id-icon-storage\" viewBox=\"0 0 24 24\"><rect x=\"6\" y=\"3\" width=\"12\" height=\"18\" rx=\"2\"><\/rect><path d=\"M9 7h6\"><\/path><circle cx=\"12\" cy=\"16\" r=\"1.5\"><\/circle><\/symbol>\n    <symbol id=\"id-icon-network\" viewBox=\"0 0 24 24\"><path d=\"M5 12.5a10 10 0 0 1 14 0\"><\/path><path d=\"M8.5 16a5 5 0 0 1 7 0\"><\/path><path d=\"M12 19h.01\"><\/path><\/symbol>\n    <symbol id=\"id-icon-gift\" viewBox=\"0 0 24 24\"><rect x=\"3\" y=\"8\" width=\"18\" height=\"13\" rx=\"2\"><\/rect><path d=\"M12 8v13M3 12h18\"><\/path><path d=\"M7.5 8C6.1 8 5 6.9 5 5.5S6.1 3 7.5 3C10 3 12 8 12 8\"><\/path><path d=\"M16.5 8C17.9 8 19 6.9 19 5.5S17.9 3 16.5 3C14 3 12 8 12 8\"><\/path><\/symbol>\n  <\/svg>\n\n  <div class=\"interdata-plan-track\">\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\"><span class=\"ez-toc-section\" id=\"Premium-Base\"><\/span>Premium Base<span class=\"ez-toc-section-end\"><\/span><\/h3>\n      <div class=\"interdata-plan-price\">299K<span>\/3 Th\u00e1ng<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>2 vCore Intel Xeon Scalable<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>2 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>30 GB NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 300 Mbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/best-value-plans-2026\/best-value-plans-premium-base\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\"><span class=\"ez-toc-section\" id=\"Premium-Base-2\"><\/span>Premium Base<span class=\"ez-toc-section-end\"><\/span><\/h3>\n      <div class=\"interdata-plan-price\">999K<span>\/n\u0103m<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>3 vCore Intel Xeon<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>3 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>30 GB SSD NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 300 Mbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/cyber-week-2026\/premium-base\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\"><span class=\"ez-toc-section\" id=\"Premium-Pro\"><\/span>Premium Pro<span class=\"ez-toc-section-end\"><\/span><\/h3>\n      <div class=\"interdata-plan-price\">2.599K<span>\/n\u0103m<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>6 vCore Intel Xeon Scalable<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>8 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>80 GB SSD NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 350 Mbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/cyber-week-2026\/premium-pro\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\">Cloud-Day - Base<\/h3>\n      <div class=\"interdata-plan-price\">2.666K<span>\/n\u0103m<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-gift\"><\/use><\/svg><\/span>T\u1eb7ng 80 GB S3 v\u00e0 1 N\u0102M S\u1eec D\u1ee4NG khi mua 2 n\u0103m tr\u1edf l\u00ean<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>4 vCPU AMD EPYC<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>6 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>60 GB SSD NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 10 Gbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/cloud-day-by-interdata-2026\/cloud-day-base\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n  <\/div>\n<\/div>\n\n\t<div id=\"gap-1052321162\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1052321162 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n<p style=\"text-align: justify;\"><span style=\"font-size: 100%;\"><br \/>\nKhi c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 \u1ea3o c\u1ee5c b\u1ed9 nh\u01b0 XAMPP, c\u01a1 s\u1edf d\u1eef li\u1ec7u SQL hay tri\u1ec3n khai m\u1ed9t \u1ee9ng d\u1ee5ng m\u1edbi, s\u1ef1 c\u1ed1 \u0111\u1ee5ng c\u1ed5ng m\u1ea1ng l\u00e0 l\u1ed7i th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra nh\u1ea5t. \u0110\u1ec3 x\u1eed l\u00fd d\u1ee9t \u0111i\u1ec3m, thao t\u00e1c \u0111\u1ea7u ti\u00ean b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n l\u00e0 <strong>ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows b\u1eb1ng<\/strong> <strong>l\u1ec7nh CMD, PID, CurrPorts<\/strong> nh\u1eb1m x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c ti\u1ebfn tr\u00ecnh n\u00e0o \u0111ang chi\u1ebfm d\u1ee5ng c\u1ed5ng giao ti\u1ebfp. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch d\u00f9ng c\u00e1c l\u1ec7nh h\u1ec7 th\u1ed1ng \u0111\u1ec3 t\u00ecm nguy\u00ean nh\u00e2n, ng\u1eaft \u1ee9ng d\u1ee5ng ng\u1ea7m v\u00e0 x\u00e1c minh k\u1ebft n\u1ed1i m\u1ea1ng m\u1ed9t c\u00e1ch chuy\u00ean nghi\u1ec7p, gi\u00fap b\u1ea1n l\u00e0m ch\u1ee7 h\u1ea1 t\u1ea7ng t\u1eeb m\u00e1y c\u00e1 nh\u00e2n \u0111\u1ebfn h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7.<br \/>\n<\/span><\/p>\n<div style=\"background-color: #eff6ff; padding: 20px; border: 1.5px solid #BFDBFE; border-radius: 12px; margin-bottom: 40px; box-shadow: 0 8px 20px rgba(37, 99, 235, 0.05);\">\n<p style=\"font-family: 'Be Vietnam Pro', sans-serif; font-weight: bold; font-size: 18px; margin-top: 0; margin-bottom: 15px; color: #1e3a8a;\">N\u1ed8I DUNG B\u00c0I VI\u1ebeT<\/p>\n<ul style=\"list-style-type: none; padding-left: 0; margin: 0;\">\n<li style=\"margin-bottom: 10px;\"><a style=\"text-decoration: none; color: #2563eb; font-weight: bold;\" href=\"#section1\">1. T\u1ea1i sao qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows?<\/a><\/li>\n<li style=\"margin-bottom: 10px;\"><a style=\"text-decoration: none; color: #2563eb; font-weight: bold;\" href=\"#section2\">2. H\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows<\/a><\/li>\n<li style=\"margin-bottom: 10px;\"><a style=\"text-decoration: none; color: #2563eb; font-weight: bold;\" href=\"#section3\">3. T\u00ecm m\u00e3 PID v\u00e0 t\u1eaft \u1ee9ng d\u1ee5ng \u0111ang chi\u1ebfm cmd port<\/a><\/li>\n<li style=\"margin-bottom: 10px;\"><a style=\"text-decoration: none; color: #2563eb; font-weight: bold;\" href=\"#section4\">4. C\u00e1ch ki\u1ec3m tra xem \u0111\u00e3 m\u1edf port modem th\u00e0nh c\u00f4ng ra Internet ch\u01b0a<\/a><\/li>\n<li style=\"margin-bottom: 10px;\"><a style=\"text-decoration: none; color: #2563eb; font-weight: bold;\" href=\"#section5\">5. Danh s\u00e1ch c\u00e1c port m\u1ea1ng ph\u1ed5 bi\u1ebfn v\u00e0 l\u01b0u \u00fd thi\u1ebft l\u1eadp firewall port<\/a><\/li>\n<li style=\"margin-bottom: 10px;\"><a style=\"text-decoration: none; color: #2563eb; font-weight: bold;\" href=\"#section6\">6. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ) khi qu\u00e9t port v\u00e0 x\u1eed l\u00fd m\u1ea1ng<\/a><\/li>\n<\/ul>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-42146\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/kiem-tra-port-dang-mo-tren-Windows-1024x683.jpg\" alt=\"ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows\" width=\"1020\" height=\"680\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/kiem-tra-port-dang-mo-tren-Windows-1024x683.jpg 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/kiem-tra-port-dang-mo-tren-Windows-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/kiem-tra-port-dang-mo-tren-Windows-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/kiem-tra-port-dang-mo-tren-Windows.jpg 1536w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<h2 id=\"section1\" style=\"color: #1e3a8a; font-size: 24px; font-weight: bold; text-align: left; border-left: 5px solid #2563EB; padding-left: 15px; margin-top: 40px; margin-bottom: 20px; line-height: 1.4;\"><span class=\"ez-toc-section\" id=\"1-Tai-sao-quan-tri-vien-can-kiem-tra-port-dang-mo-tren-Windows\"><\/span>1. T\u1ea1i sao qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Port (c\u1ed5ng m\u1ea1ng) \u0111\u00f3ng vai tr\u00f2 nh\u01b0 nh\u1eefng c\u00e1nh c\u1eeda \u0111\u1ec3 d\u1eef li\u1ec7u \u0111i v\u00e0o v\u00e0 \u0111i ra kh\u1ecfi m\u00e1y t\u00ednh ho\u1eb7c m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n. Vi\u1ec7c hi\u1ec3u v\u00e0 n\u1eafm r\u00f5 tr\u1ea1ng th\u00e1i c\u00e1c c\u1ed5ng n\u00e0y gi\u1ea3i quy\u1ebft ba v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i trong v\u1eadn h\u00e0nh.<\/p>\n<ul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 25px; color: #1f2937;\">\n<li style=\"margin-bottom: 10px;\"><strong>X\u1eed l\u00fd xung \u0111\u1ed9t ph\u1ea7n m\u1ec1m:<\/strong> M\u00e1y ch\u1ee7 web Apache m\u1eb7c \u0111\u1ecbnh ch\u1ea1y port 80 443. N\u1ebfu Skype ho\u1eb7c m\u1ed9t d\u1ecbch v\u1ee5 ng\u1ea7m kh\u00e1c (nh\u01b0 IIS) \u0111\u00e3 kh\u1edfi ch\u1ea1y tr\u01b0\u1edbc v\u00e0 chi\u1ebfm c\u1ed5ng n\u00e0y, Apache s\u1ebd b\u00e1o l\u1ed7i kh\u00f4ng th\u1ec3 kh\u1edfi \u0111\u1ed9ng. B\u1ea1n b\u1eaft bu\u1ed9c ph\u1ea3i t\u00ecm ra k\u1ebb chi\u1ebfm d\u1ee5ng \u0111\u1ec3 c\u1ea5u h\u00ecnh l\u1ea1i ho\u1eb7c t\u1eaft n\u00f3 \u0111i.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>\u0110\u00e1nh gi\u00e1 r\u1ee7i ro b\u1ea3o m\u1eadt:<\/strong> K\u1ef9 s\u01b0 h\u1ec7 th\u1ed1ng th\u01b0\u1eddng xuy\u00ean qu\u00e9t port \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c d\u1ecbch v\u1ee5 l\u1ea1 \u0111ang l\u1eafng nghe. N\u1ebfu m\u1ed9t c\u1ed5ng Remote Desktop (3389) ho\u1eb7c m\u1ed9t c\u1ed5ng kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c m\u1edf toang ra Internet m\u00e0 kh\u00f4ng c\u00f3 t\u01b0\u1eddng l\u1eeda b\u1ea3o v\u1ec7, h\u1ec7 th\u1ed1ng r\u1ea5t d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng brute-force ho\u1eb7c d\u00ednh m\u00e3 \u0111\u1ed9c.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>X\u00e1c minh lu\u1ed3ng m\u1ea1ng:<\/strong> Khi b\u1ea1n c\u1ea5u h\u00ecnh VPN, Game Server ho\u1eb7c t\u1ef1 host \u1ee9ng d\u1ee5ng t\u1ea1i nh\u00e0, b\u1ea1n ph\u1ea3i NAT port tr\u00ean Router. Ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1ed5ng gi\u00fap x\u00e1c nh\u1eadn b\u1ea1n \u0111\u00e3 \u0111\u1ecbnh tuy\u1ebfn lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u00fang m\u00e1y \u0111\u00edch hay ch\u01b0a.<\/li>\n<\/ul>\n<h2 id=\"section2\" style=\"color: #1e3a8a; font-size: 24px; font-weight: bold; text-align: left; border-left: 5px solid #2563EB; padding-left: 15px; margin-top: 40px; margin-bottom: 20px; line-height: 1.4;\"><span class=\"ez-toc-section\" id=\"2-Huong-dan-cach-kiem-tra-port-dang-mo-tren-Windows\"><\/span>2. H\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f3 nhi\u1ec1u c\u00e1ch \u0111\u1ec3 ki\u1ec3m tra c\u00e1c port \u0111ang m\u1edf tr\u00ean Windows. Trong n\u1ed9i dung n\u00e0y, ch\u00fang t\u00f4i s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n s\u1eed d\u1ee5ng Command Prompt v\u00e0 m\u1ed9t ph\u1ea7n m\u1ec1m mi\u1ec5n ph\u00ed gi\u00fap theo d\u00f5i port \u0111ang ho\u1ea1t \u0111\u1ed9ng m\u1ed9t c\u00e1ch tr\u1ef1c quan. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec1u t\u01b0\u01a1ng th\u00edch v\u1edbi h\u1ea7u h\u1ebft c\u00e1c phi\u00ean b\u1ea3n Windows hi\u1ec7n nay.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-42148\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Cach-kiem-tra-port-dang-mo-tren-Windows-1024x683.jpg\" alt=\"C\u00e1ch ki\u1ec3m tra port \u0111ang m\u1edf tr\u00ean Windows\" width=\"1020\" height=\"680\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Cach-kiem-tra-port-dang-mo-tren-Windows-1024x683.jpg 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Cach-kiem-tra-port-dang-mo-tren-Windows-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Cach-kiem-tra-port-dang-mo-tren-Windows-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Cach-kiem-tra-port-dang-mo-tren-Windows.jpg 1536w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<p>Windows cung c\u1ea5p hai l\u1ec7nh ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ki\u1ec3m tra port. L\u1ec7nh \u0111\u1ea7u ti\u00ean hi\u1ec3n th\u1ecb danh s\u00e1ch c\u00e1c port \u0111ang ho\u1ea1t \u0111\u1ed9ng c\u00f9ng v\u1edbi t\u00ean ti\u1ebfn tr\u00ecnh \u0111ang s\u1eed d\u1ee5ng ch\u00fang. Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, t\u00ean ti\u1ebfn tr\u00ecnh kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c \u1ee9ng d\u1ee5ng ho\u1eb7c d\u1ecbch v\u1ee5 li\u00ean quan. Khi \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u1ec7nh th\u1ee9 hai \u0111\u1ec3 hi\u1ec3n th\u1ecb Process ID (PID), sau \u0111\u00f3 tra c\u1ee9u th\u00f4ng tin chi ti\u1ebft trong Task Manager.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kiem-tra-port-dang-mo-bang-CMD\"><\/span>Ki\u1ec3m tra port \u0111ang m\u1edf b\u1eb1ng CMD<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y m\u1edf Command Prompt v\u1edbi quy\u1ec1n Administrator. Nh\u1ea5n n\u00fat <strong>Start<\/strong>, nh\u1eadp t\u1eeb kh\u00f3a <strong>command<\/strong> v\u00e0o \u00f4 t\u00ecm ki\u1ebfm. Khi k\u1ebft qu\u1ea3 <strong>Command Prompt<\/strong> xu\u1ea5t hi\u1ec7n, nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng v\u00e0 ch\u1ecdn <strong>Run as administrator<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-42150\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/chon-command-prompt.png\" alt=\"ch\u1ecdn command prompt\" width=\"762\" height=\"437\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/chon-command-prompt.png 762w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/chon-command-prompt-300x172.png 300w\" sizes=\"auto, (max-width: 762px) 100vw, 762px\" \/><\/p>\n<p>T\u1ea1i c\u1eeda s\u1ed5 <strong>Command Prompt<\/strong>, nh\u1eadp l\u1ec7nh d\u01b0\u1edbi \u0111\u00e2y r\u1ed3i nh\u1ea5n <strong>Enter<\/strong>:<\/p>\n<pre><code>netstat -ab<\/code><\/pre>\n<p>Sau khi th\u1ef1c thi l\u1ec7nh, h\u00e3y \u0111\u1ee3i kho\u1ea3ng m\u1ed9t \u0111\u1ebfn hai ph\u00fat \u0111\u1ec3 h\u1ec7 th\u1ed1ng t\u1ed5ng h\u1ee3p v\u00e0 hi\u1ec3n th\u1ecb \u0111\u1ea7y \u0111\u1ee7 k\u1ebft qu\u1ea3. Cu\u1ed9n danh s\u00e1ch \u0111\u1ec3 t\u00ecm port c\u1ea7n ki\u1ec3m tra. S\u1ed1 port s\u1ebd xu\u1ea5t hi\u1ec7n sau d\u1ea5u hai ch\u1ea5m \u1edf b\u00ean ph\u1ea3i \u0111\u1ecba ch\u1ec9 IP v\u00e0 t\u00ean ti\u1ebfn tr\u00ecnh t\u01b0\u01a1ng \u1ee9ng s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb ngay b\u00ean d\u01b0\u1edbi.<\/p>\n<p>N\u1ebfu danh s\u00e1ch qu\u00e1 d\u00e0i, b\u1ea1n c\u00f3 th\u1ec3 xu\u1ea5t k\u1ebft qu\u1ea3 ra file v\u0103n b\u1ea3n \u0111\u1ec3 thu\u1eadn ti\u1ec7n cho vi\u1ec7c t\u00ecm ki\u1ebfm b\u1eb1ng ch\u1ee9c n\u0103ng Search c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-42151\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Check-port-tren-command-prompt.png\" alt=\"Check port tr\u00ean command prompt\" width=\"580\" height=\"405\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Check-port-tren-command-prompt.png 580w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Check-port-tren-command-prompt-300x209.png 300w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/p>\n<p>Trong tr\u01b0\u1eddng h\u1ee3p g\u1eb7p kh\u00f3 kh\u0103n khi x\u00e1c \u0111\u1ecbnh ho\u1eb7c x\u1eed l\u00fd c\u00e1c port \u0111ang s\u1eed d\u1ee5ng tr\u00ean m\u00e1y ch\u1ee7, \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a InterData lu\u00f4n s\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 t\u1eeb xa nh\u1eb1m gi\u00fap h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ea3m b\u1ea3o an to\u00e0n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kiem-tra-port-dang-mo-bang-Process-ID-PID\"><\/span>Ki\u1ec3m tra port \u0111ang m\u1edf b\u1eb1ng Process ID (PID)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu vi\u1ec7c xem t\u00ean ti\u1ebfn tr\u00ecnh ch\u01b0a gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng li\u00ean quan, h\u00e3y s\u1eed d\u1ee5ng l\u1ec7nh kh\u00e1c \u0111\u1ec3 hi\u1ec3n th\u1ecb Process ID (PID). T\u1eeb PID n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 tra c\u1ee9u chi ti\u1ebft trong Task Manager \u0111\u1ec3 bi\u1ebft ch\u00ednh x\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ho\u1eb7c d\u1ecbch v\u1ee5 \u0111ang chi\u1ebfm d\u1ee5ng port.<\/p>\n<p>Nh\u1eadp l\u1ec7nh sau v\u00e0o Command Prompt r\u1ed3i nh\u1ea5n Enter:<\/p>\n<pre><code>netstat -aon<\/code><\/pre>\n<p>Trong k\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1, c\u1ed9t ngo\u00e0i c\u00f9ng b\u00ean ph\u1ea3i l\u00e0 PID c\u1ee7a t\u1eebng ti\u1ebfn tr\u00ecnh. H\u00e3y t\u00ecm PID t\u01b0\u01a1ng \u1ee9ng v\u1edbi port m\u00e0 b\u1ea1n mu\u1ed1n ki\u1ec3m tra ho\u1eb7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-42152\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Kiem-tra-port-dang-mo-voi-Process-Identifiers.png\" alt=\"Ki\u1ec3m tra port \u0111ang m\u1edf v\u1edbi Process Identifiers\" width=\"709\" height=\"370\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Kiem-tra-port-dang-mo-voi-Process-Identifiers.png 709w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Kiem-tra-port-dang-mo-voi-Process-Identifiers-300x157.png 300w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/p>\n<p>Ti\u1ebfp theo, m\u1edf <strong>Task Manager<\/strong> b\u1eb1ng c\u00e1ch nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o thanh Taskbar v\u00e0 ch\u1ecdn <strong>Task Manager<\/strong>.<\/p>\n<p>N\u1ebfu \u0111ang s\u1eed d\u1ee5ng Windows 8, Windows 10 ho\u1eb7c c\u00e1c phi\u00ean b\u1ea3n m\u1edbi h\u01a1n, h\u00e3y chuy\u1ec3n sang tab <strong>Details<\/strong>. V\u1edbi c\u00e1c phi\u00ean b\u1ea3n Windows c\u0169 h\u01a1n, th\u00f4ng tin PID th\u01b0\u1eddng n\u1eb1m trong tab <strong>Processes<\/strong>.<\/p>\n<p>S\u1eafp x\u1ebfp danh s\u00e1ch ti\u1ebfn tr\u00ecnh theo c\u1ed9t <strong>PID<\/strong>, sau \u0111\u00f3 t\u00ecm PID \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u1edf b\u01b0\u1edbc tr\u01b0\u1edbc. Khi \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 xem th\u00eam th\u00f4ng tin v\u1ec1 \u1ee9ng d\u1ee5ng ho\u1eb7c d\u1ecbch v\u1ee5 t\u01b0\u01a1ng \u1ee9ng th\u00f4ng qua c\u1ed9t <strong>Description<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-42153\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Xep-ung-dung-dich-vu-theo-PID-1024x357.png\" alt=\"X\u1ebfp \u1ee9ng d\u1ee5ng, d\u1ecbch v\u1ee5 theo PID\" width=\"1020\" height=\"356\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Xep-ung-dung-dich-vu-theo-PID-1024x357.png 1024w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Xep-ung-dung-dich-vu-theo-PID-300x104.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Xep-ung-dung-dich-vu-theo-PID-768x267.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/06\/Xep-ung-dung-dich-vu-theo-PID.png 1054w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<p>N\u1ebfu v\u1eabn ch\u01b0a x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c ch\u01b0\u01a1ng tr\u00ecnh \u0111ang s\u1eed d\u1ee5ng port, h\u00e3y nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o ti\u1ebfn tr\u00ecnh v\u00e0 ch\u1ecdn <strong>Open file location<\/strong>. \u0110\u01b0\u1eddng d\u1eabn th\u01b0 m\u1ee5c c\u1ee7a file th\u1ef1c thi th\u01b0\u1eddng s\u1ebd gi\u00fap b\u1ea1n nh\u1eadn di\u1ec7n ch\u00ednh x\u00e1c \u1ee9ng d\u1ee5ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>T\u1ea1i c\u1eeda s\u1ed5 n\u00e0y, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c t\u00f9y ch\u1ecdn nh\u01b0 <strong>End Process<\/strong>, <strong>Open File Location<\/strong> ho\u1eb7c <strong>Go to Service(s)<\/strong> \u0111\u1ec3 qu\u1ea3n l\u00fd, theo d\u00f5i ho\u1eb7c d\u1eebng ti\u1ebfn tr\u00ecnh n\u1ebfu c\u1ea7n thi\u1ebft.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-CurrPorts-de-kiem-tra-port-dang-mo\"><\/span>S\u1eed d\u1ee5ng CurrPorts \u0111\u1ec3 ki\u1ec3m tra port \u0111ang m\u1edf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu kh\u00f4ng mu\u1ed1n s\u1eed d\u1ee5ng Command Prompt ho\u1eb7c mu\u1ed1n c\u00f3 m\u1ed9t c\u00f4ng c\u1ee5 tr\u1ef1c quan h\u01a1n \u0111\u1ec3 theo d\u00f5i port \u0111ang m\u1edf, b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng <strong>CurrPorts<\/strong> \u2013 ti\u1ec7n \u00edch mi\u1ec5n ph\u00ed \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi NirSoft.<\/p>\n<p>Truy c\u1eadp trang c\u1ee7a CurrPorts v\u00e0 l\u1ef1a ch\u1ecdn phi\u00ean b\u1ea3n ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111ang s\u1eed d\u1ee5ng. Phi\u00ean b\u1ea3n ti\u00eau chu\u1ea9n d\u00e0nh cho Windows 32-bit, trong khi phi\u00ean b\u1ea3n x64 d\u00e0nh cho Windows 64-bit.<\/p>\n<p>Ph\u1ea7n m\u1ec1m n\u00e0y kh\u00f4ng y\u00eau c\u1ea7u c\u00e0i \u0111\u1eb7t. Sau khi t\u1ea3i xu\u1ed1ng, b\u1ea1n ch\u1ec9 c\u1ea7n gi\u1ea3i n\u00e9n file v\u00e0 ch\u1ea1y tr\u1ef1c ti\u1ebfp ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n<p>Trong giao di\u1ec7n CurrPorts, h\u00e3y s\u1eafp x\u1ebfp d\u1eef li\u1ec7u theo c\u1ed9t <strong>Local Port<\/strong> \u0111\u1ec3 d\u1ec5 d\u00e0ng ki\u1ec3m tra c\u00e1c port \u0111ang ho\u1ea1t \u0111\u1ed9ng. C\u00f4ng c\u1ee5 s\u1ebd hi\u1ec3n th\u1ecb \u0111\u1ea7y \u0111\u1ee7 c\u00e1c th\u00f4ng tin nh\u01b0 t\u00ean ti\u1ebfn tr\u00ecnh, PID, s\u1ed1 port, giao th\u1ee9c s\u1eed d\u1ee5ng v\u00e0 \u0111\u01b0\u1eddng d\u1eabn th\u1ef1c thi c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 nh\u1ea5p \u0111\u00fap v\u00e0o b\u1ea5t k\u1ef3 ti\u1ebfn tr\u00ecnh n\u00e0o \u0111\u1ec3 xem th\u00f4ng tin chi ti\u1ebft trong m\u1ed9t c\u1eeda s\u1ed5 ri\u00eang. T\u1ea1i \u0111\u00e2y, to\u00e0n b\u1ed9 d\u1eef li\u1ec7u li\u00ean quan \u0111\u1ebfn k\u1ebft n\u1ed1i m\u1ea1ng v\u00e0 ti\u1ebfn tr\u00ecnh t\u01b0\u01a1ng \u1ee9ng s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng.<\/p>\n<p>Sau khi x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng ho\u1eb7c d\u1ecbch v\u1ee5 \u0111ang s\u1eed d\u1ee5ng port, b\u1ea1n c\u00f3 th\u1ec3 x\u1eed l\u00fd theo nhu c\u1ea7u th\u1ef1c t\u1ebf. N\u1ebfu l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng th\u00f4ng th\u01b0\u1eddng, h\u00e3y c\u00e2n nh\u1eafc thay \u0111\u1ed5i sang port kh\u00e1c n\u1ebfu ph\u1ea7n m\u1ec1m h\u1ed7 tr\u1ee3. Tr\u01b0\u1eddng h\u1ee3p l\u00e0 d\u1ecbch v\u1ee5 h\u1ec7 th\u1ed1ng ho\u1eb7c \u1ee9ng d\u1ee5ng kh\u00f4ng cho ph\u00e9p thay \u0111\u1ed5i port, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1m d\u1eebng d\u1ecbch v\u1ee5 ho\u1eb7c g\u1ee1 b\u1ecf ch\u01b0\u01a1ng tr\u00ecnh n\u1ebfu kh\u00f4ng c\u00f2n c\u1ea7n thi\u1ebft.<\/p>\n<p>B\u00ean c\u1ea1nh c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra port, vi\u1ec7c s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 VPS t\u1ea1i InterData c\u0169ng gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng m\u1ea1ng, c\u1ea5u h\u00ecnh firewall, theo d\u00f5i k\u1ebft n\u1ed1i v\u00e0 x\u1eed l\u00fd nhanh c\u00e1c s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn port nh\u1eb1m \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ea3o m\u1eadt cho m\u00e1y ch\u1ee7.<\/p>\n<h2 id=\"section3\" style=\"color: #1e3a8a; font-size: 24px; font-weight: bold; text-align: left; border-left: 5px solid #2563EB; padding-left: 15px; margin-top: 40px; margin-bottom: 20px; line-height: 1.4;\"><span class=\"ez-toc-section\" id=\"3-Tim-ma-PID-va-tat-ung-dung-dang-chiem-cmd-port\"><\/span>3. T\u00ecm m\u00e3 PID v\u00e0 t\u1eaft \u1ee9ng d\u1ee5ng \u0111ang chi\u1ebfm cmd port<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u00e3 PID (v\u00ed d\u1ee5 4321), b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 t\u00ecm xem s\u1ed1 4321 n\u00e0y thu\u1ed9c v\u1ec1 ph\u1ea7n m\u1ec1m n\u00e0o v\u00e0 bu\u1ed9c n\u00f3 ph\u1ea3i d\u1eebng l\u1ea1i \u0111\u1ec3 tr\u1ea3 l\u1ea1i c\u1ed5ng m\u1ea1ng.<\/p>\n<p style=\"text-align: justify;\"><strong>C\u00e1ch 1: S\u1eed d\u1ee5ng Task Manager<\/strong><\/p>\n<ol style=\"list-style-type: decimal; padding-left: 20px; margin-bottom: 25px; color: #1f2937;\">\n<li style=\"margin-bottom: 10px;\">Nh\u1ea5n t\u1ed5 h\u1ee3p ph\u00edm <code>Ctrl + Shift + Esc<\/code> \u0111\u1ec3 m\u1edf Task Manager.<\/li>\n<li style=\"margin-bottom: 10px;\">Chuy\u1ec3n sang tab <strong>Details<\/strong> (Chi ti\u1ebft).<\/li>\n<li style=\"margin-bottom: 10px;\">Nh\u1ea5p v\u00e0o c\u1ed9t <strong>PID<\/strong> \u0111\u1ec3 s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1, sau \u0111\u00f3 t\u00ecm s\u1ed1 4321.<\/li>\n<li style=\"margin-bottom: 10px;\">C\u1ed9t Name s\u1ebd hi\u1ec3n th\u1ecb t\u00ean \u1ee9ng d\u1ee5ng (v\u00ed d\u1ee5: httpd.exe ho\u1eb7c skype.exe). B\u1ea5m chu\u1ed9t ph\u1ea3i v\u00e0o ti\u1ebfn tr\u00ecnh \u0111\u00f3 v\u00e0 ch\u1ecdn <strong>End task<\/strong>.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\"><strong>C\u00e1ch 2: S\u1eed d\u1ee5ng l\u1ec7nh Taskkill tr\u1ef1c ti\u1ebfp tr\u00ean CMD<\/strong><\/p>\n<p style=\"text-align: justify;\">N\u1ebfu b\u1ea1n quen thu\u1ed9c v\u1edbi thao t\u00e1c d\u00f2ng l\u1ec7nh, b\u1ea1n c\u00f3 th\u1ec3 \u00e9p bu\u1ed9c t\u1eaft ti\u1ebfn tr\u00ecnh b\u1eb1ng l\u1ec7nh <code>taskkill<\/code>. H\u00e3y ch\u1eafc ch\u1eafn CMD \u0111ang ch\u1ea1y \u1edf quy\u1ec1n Admin:<\/p>\n<div style=\"background-color: #1f2937; color: #e5e7eb; padding: 15px; border-radius: 8px; font-family: monospace; font-size: 14px; margin-bottom: 25px; overflow-x: auto;\">taskkill \/PID 4321 \/F<\/div>\n<p style=\"text-align: justify;\">Tham s\u1ed1 <code>\/F<\/code> (Force) \u0111\u1ea3m b\u1ea3o ti\u1ebfn tr\u00ecnh b\u1ecb t\u1eaft ngay l\u1eadp t\u1ee9c m\u00e0 kh\u00f4ng c\u1ea7n x\u00e1c nh\u1eadn t\u1eeb \u1ee9ng d\u1ee5ng.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; background-color: #fff; border: 1.5px solid #BFDBFE; box-shadow: 0 8px 20px rgba(37,99,235,0.08); border-radius: 12px; overflow: hidden; margin: 35px 0;\">\n<div style=\"flex: 1; min-width: 250px; background: linear-gradient(135deg, #1E3A8A 0%, #2563EB 100%); display: flex; align-items: center; justify-content: center; padding: 30px; text-align: center;\">\n<div>\n<p style=\"color: white; font-size: 34px; font-family: 'Be Vietnam Pro', sans-serif; font-weight: bold; margin: 0; line-height: 1.1;\">Thu\u00ea VPS<\/p>\n<p style=\"color: #dbeafe; font-size: 15px; font-weight: 600; margin-top: 12px;\">M\u00f4i tr\u01b0\u1eddng c\u00f4 l\u1eadp<br \/>\nC\u00f3 s\u1eb5n Public IP<br \/>\nQuy\u1ec1n Root\/Admin tuy\u1ec7t \u0111\u1ed1i<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 2; padding: 25px; min-width: 300px;\">\n<h3 style=\"font-family: 'Be Vietnam Pro', sans-serif; color: #1e3a8a; margin-top: 0; font-size: 20px;\"><span class=\"ez-toc-section\" id=\"Giai-quyet-triet-de-loi-dung-port-moi-truong-Local\"><\/span>Gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 l\u1ed7i \u0111\u1ee5ng port m\u00f4i tr\u01b0\u1eddng Local<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 15px; margin-bottom: 15px;\">Vi\u1ec7c c\u00e0i \u0111\u1eb7t \u0111an xen c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 Web Server, Database, Tool Bot hay Docker tr\u00ean m\u00e1y t\u00ednh c\u00e1 nh\u00e2n r\u1ea5t d\u1ec5 g\u00e2y xung \u0111\u1ed9t c\u1ed5ng m\u1ea1ng v\u00e0 ng\u1ed1n t\u00e0i nguy\u00ean ph\u1ea7n c\u1ee9ng c\u1ee5c b\u1ed9. T\u00e1ch bi\u1ec7t m\u00f4i tr\u01b0\u1eddng Development\/Test l\u00ean m\u1ed9t d\u1ecbch v\u1ee5 VPS gi\u00fap b\u1ea1n s\u1edf h\u1eefu m\u1ed9t kh\u00f4ng gian \u0111\u1ed9c l\u1eadp, s\u1ea1ch s\u1ebd. B\u1ea1n to\u00e0n quy\u1ec1n c\u1ea5u h\u00ecnh port, kh\u1edfi t\u1ea1o l\u1ea1i h\u1ec7 \u0111i\u1ec1u h\u00e0nh b\u1ea5t c\u1ee9 l\u00fac n\u00e0o m\u00e0 kh\u00f4ng lo \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c ph\u1ea7n m\u1ec1m l\u00e0m vi\u1ec7c c\u00e1 nh\u00e2n.<\/p>\n<p><a style=\"background: linear-gradient(90deg, #2563EB 0%, #1E3A8A 100%); color: white; padding: 12px 25px; text-decoration: none; font-weight: 600; border-radius: 8px; font-size: 15px; display: inline-block; box-shadow: 0 5px 15px rgba(37,99,235,0.3);\" href=\"https:\/\/interdata.vn\/thue-vps\/\" target=\"_blank\" rel=\"noopener\">Xem c\u1ea5u h\u00ecnh VPS \u27f6<\/a><\/p>\n<\/div>\n<\/div>\n<h2 id=\"section4\" style=\"color: #1e3a8a; font-size: 24px; font-weight: bold; text-align: left; border-left: 5px solid #2563EB; padding-left: 15px; margin-top: 40px; margin-bottom: 20px; line-height: 1.4;\"><span class=\"ez-toc-section\" id=\"4-Cach-kiem-tra-xem-da-mo-port-modem-thanh-cong-ra-Internet-chua\"><\/span>4. C\u00e1ch ki\u1ec3m tra xem \u0111\u00e3 m\u1edf port modem th\u00e0nh c\u00f4ng ra Internet ch\u01b0a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Khi netstat b\u00e1o c\u1ed5ng \u0111ang LISTENING, \u0111i\u1ec1u \u0111\u00f3 ch\u1ec9 c\u00f3 ngh\u0129a l\u00e0 \u1ee9ng d\u1ee5ng \u0111ang m\u1edf tr\u00ean m\u00e1y t\u00ednh (Localhost). N\u00f3 kh\u00f4ng ch\u1ee9ng minh \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00f9ng t\u1eeb m\u1ea1ng Internet c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u00e0o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. B\u1ea1n c\u1ea7n ki\u1ec3m tra k\u1ebft n\u1ed1i t\u1eeb b\u00ean ngo\u00e0i b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p sau.<\/p>\n<h3 style=\"color: #1e3a8a; font-size: 20px; font-weight: bold; margin-top: 25px; margin-bottom: 15px;\"><span class=\"ez-toc-section\" id=\"Dung-lenh-telnet-port-tu-mang-noi-bo\"><\/span>D\u00f9ng l\u1ec7nh telnet port t\u1eeb m\u1ea1ng n\u1ed9i b\u1ed9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">L\u1ec7nh telnet gi\u00fap b\u1ea1n th\u1eed g\u1eedi m\u1ed9t k\u1ebft n\u1ed1i TCP \u0111\u1ebfn IP \u0111\u00edch. \u0110\u1ec3 s\u1eed d\u1ee5ng, tr\u01b0\u1edbc ti\u00ean b\u1ea1n c\u1ea7n b\u1eadt Telnet Client trong m\u1ee5c <em>Turn Windows features on or off<\/em>. Sau \u0111\u00f3, d\u00f9ng m\u1ed9t m\u00e1y t\u00ednh kh\u00e1c c\u00f9ng m\u1ea1ng LAN, m\u1edf CMD v\u00e0 g\u00f5:<\/p>\n<div style=\"background-color: #1f2937; color: #e5e7eb; padding: 15px; border-radius: 8px; font-family: monospace; font-size: 14px; margin-bottom: 25px; overflow-x: auto;\">telnet 192.168.1.100 80<\/div>\n<p style=\"text-align: justify;\">N\u1ebfu m\u00e0n h\u00ecnh CMD chuy\u1ec3n sang m\u00e0u \u0111en tr\u1ed1ng ho\u1eb7c c\u00f3 d\u1ea5u nh\u00e1y nh\u1ea5p nh\u00e1y, port \u0111\u00e3 m\u1edf th\u00e0nh c\u00f4ng trong n\u1ed9i m\u1ea1ng. N\u1ebfu b\u00e1o l\u1ed7i <em>Could not open connection to the host<\/em>, Windows Firewall tr\u00ean m\u00e1y ch\u1ee7 \u0111ang ch\u1eb7n k\u1ebft n\u1ed1i.<\/p>\n<h3 style=\"color: #1e3a8a; font-size: 20px; font-weight: bold; margin-top: 25px; margin-bottom: 15px;\"><span class=\"ez-toc-section\" id=\"Dung-cong-cu-check-open-port-truc-tuyen\"><\/span>D\u00f9ng c\u00f4ng c\u1ee5 check open port tr\u1ef1c tuy\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">\u0110\u1ec3 x\u00e1c minh b\u1ea1n \u0111\u00e3 c\u1ea5u h\u00ecnh NAT\/Port Forwarding th\u00e0nh c\u00f4ng tr\u00ean Router, h\u00e3y s\u1eed d\u1ee5ng m\u1ea1ng 4G ho\u1eb7c m\u1ed9t thi\u1ebft b\u1ecb b\u00ean ngo\u00e0i m\u1ea1ng nh\u00e0 b\u1ea1n. Truy c\u1eadp c\u00e1c trang nh\u01b0 <strong>Ping.eu<\/strong> (m\u1ee5c Port Check) ho\u1eb7c <strong>CanYouSeeMe.org<\/strong>.<\/p>\n<ul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 25px; color: #1f2937;\">\n<li style=\"margin-bottom: 10px;\">Nh\u1eadp IP Public c\u1ee7a b\u1ea1n (trang web th\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng nh\u1eadn di\u1ec7n).<\/li>\n<li style=\"margin-bottom: 10px;\">Nh\u1eadp s\u1ed1 Port c\u1ea7n ki\u1ec3m tra.<\/li>\n<li style=\"margin-bottom: 10px;\">Nh\u1ea5p Check. N\u1ebfu k\u1ebft qu\u1ea3 l\u00e0 <em>Success<\/em> ho\u1eb7c <em>Open<\/em>, d\u1eef li\u1ec7u \u0111\u00e3 th\u00f4ng t\u1eeb Internet v\u00e0o th\u1eb3ng ph\u1ea7n m\u1ec1m c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<div style=\"display: flex; flex-wrap: wrap; background-color: #fff; border: 1.5px solid #BFDBFE; box-shadow: 0 8px 20px rgba(37,99,235,0.08); border-radius: 12px; overflow: hidden; margin: 35px 0;\">\n<div style=\"flex: 1; min-width: 250px; background: linear-gradient(135deg, #1E3A8A 0%, #2563EB 100%); display: flex; align-items: center; justify-content: center; padding: 30px; text-align: center;\">\n<div>\n<p style=\"color: white; font-size: 34px; font-family: 'Be Vietnam Pro', sans-serif; font-weight: bold; margin: 0; line-height: 1.1;\">Thu\u00ea Cloud Server<\/p>\n<p style=\"color: #dbeafe; font-size: 15px; font-weight: 600; margin-top: 12px;\">Ch\u1ecbu t\u1ea3i l\u1edbn<br \/>\nKh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ee9c th\u00ec<br \/>\nFirewall ph\u1ea7n c\u1ee9ng t\u00edch h\u1ee3p<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 2; padding: 25px; min-width: 300px;\">\n<h3 style=\"font-family: 'Be Vietnam Pro', sans-serif; color: #1e3a8a; margin-top: 0; font-size: 20px;\"><span class=\"ez-toc-section\" id=\"Danh-cho-cac-he-thong-Production-yeu-cau-khat-khe\"><\/span>D\u00e0nh cho c\u00e1c h\u1ec7 th\u1ed1ng Production y\u00eau c\u1ea7u kh\u1eaft khe<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 15px; margin-bottom: 15px;\">Khi tri\u1ec3n khai website th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, ERP doanh nghi\u1ec7p ho\u1eb7c database l\u1edbn, vi\u1ec7c m\u1edf port thi\u1ebft b\u1ecb m\u1ea1ng v\u0103n ph\u00f2ng \u0111\u1ec3 public ra ngo\u00e0i l\u00e0 c\u1ef1c k\u1ef3 r\u1ee7i ro v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 gi\u1edbi h\u1ea1n v\u1ec1 b\u0103ng th\u00f4ng. Gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u l\u00e0 \u0111\u01b0a h\u1ec7 th\u1ed1ng l\u00ean Cloud Server. V\u1edbi t\u00e0i nguy\u00ean c\u1ea5p ph\u00e1t ri\u00eang bi\u1ec7t, \u1ed5 c\u1ee9ng SSD NVMe t\u1ed1c \u0111\u1ed9 cao v\u00e0 h\u1ea1 t\u1ea7ng m\u1ea1ng \u0111\u1ea1t chu\u1ea9n Datacenter, Cloud Server x\u1eed l\u00fd m\u01b0\u1ee3t m\u00e0 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp l\u1edbn, cung c\u1ea5p kh\u1ea3 n\u0103ng \u0111\u00f3ng\/m\u1edf port an to\u00e0n th\u00f4ng qua Security Group.<\/p>\n<p><a style=\"background: linear-gradient(90deg, #2563EB 0%, #1E3A8A 100%); color: white; padding: 12px 25px; text-decoration: none; font-weight: 600; border-radius: 8px; font-size: 15px; display: inline-block; box-shadow: 0 5px 15px rgba(37,99,235,0.3);\" href=\"https:\/\/interdata.vn\/cloud-server\/\" target=\"_blank\" rel=\"noopener\">Tri\u1ec3n khai Cloud Server \u27f6<\/a><\/p>\n<\/div>\n<\/div>\n<h2 id=\"section5\" style=\"color: #1e3a8a; font-size: 24px; font-weight: bold; text-align: left; border-left: 5px solid #2563EB; padding-left: 15px; margin-top: 40px; margin-bottom: 20px; line-height: 1.4;\"><span class=\"ez-toc-section\" id=\"5-Danh-sach-cac-port-mang-pho-bien-va-luu-y-thiet-lap-firewall-port\"><\/span>5. Danh s\u00e1ch c\u00e1c port m\u1ea1ng ph\u1ed5 bi\u1ebfn v\u00e0 l\u01b0u \u00fd thi\u1ebft l\u1eadp firewall port<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Trong qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng, hi\u1ec3u r\u00f5 c\u00f4ng n\u0103ng c\u1ee7a c\u00e1c c\u1ed5ng chu\u1ea9n gi\u00fap b\u1ea1n thi\u1ebft l\u1eadp firewall port ch\u00ednh x\u00e1c, ch\u1ec9 cho ph\u00e9p lu\u1ed3ng d\u1eef li\u1ec7u h\u1ee3p l\u1ec7 \u0111i qua.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin-bottom: 25px; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\">\n<thead>\n<tr style=\"background-color: #1e3a8a; color: white;\">\n<th style=\"padding: 12px; border: 1px solid #BFDBFE; text-align: left;\">S\u1ed1 Port<\/th>\n<th style=\"padding: 12px; border: 1px solid #BFDBFE; text-align: left;\">Giao th\u1ee9c \/ D\u1ecbch v\u1ee5<\/th>\n<th style=\"padding: 12px; border: 1px solid #BFDBFE; text-align: left;\">M\u1ee9c \u0111\u1ed9 r\u1ee7i ro khi Public<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB; text-align: center; font-weight: bold;\">80 \/ 443<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">HTTP \/ HTTPS (Web Server)<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">Th\u1ea5p (B\u1eaft bu\u1ed9c m\u1edf cho website ho\u1ea1t \u0111\u1ed9ng)<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 12px; border: 1px solid #E5E7EB; text-align: center; font-weight: bold;\">21 \/ 22<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">FTP \/ SSH (Truy\u1ec1n file, qu\u1ea3n tr\u1ecb Linux)<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">Trung b\u00ecnh (N\u00ean \u0111\u1ed5i port m\u1eb7c \u0111\u1ecbnh ho\u1eb7c gi\u1edbi h\u1ea1n IP)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB; text-align: center; font-weight: bold;\">3389<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">RDP (Remote Desktop Windows)<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB; color: #dc2626; font-weight: bold;\">R\u1ea5t cao (D\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng Ransomware, Brute-force)<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 12px; border: 1px solid #E5E7EB; text-align: center; font-weight: bold;\">3306 \/ 1433<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">MySQL \/ SQL Server Database<\/td>\n<td style=\"padding: 12px; border: 1px solid #E5E7EB;\">Cao (Ch\u1ec9 n\u00ean cho ph\u00e9p IP Web Server k\u1ebft n\u1ed1i t\u1edbi)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><strong>L\u01b0u \u00fd c\u1ea3nh b\u00e1o:<\/strong> Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng m\u1edf port 3389 ra Internet (0.0.0.0\/0) n\u1ebfu b\u1ea1n \u0111ang d\u00f9ng VPS Windows. Thay v\u00e0o \u0111\u00f3, h\u00e3y s\u1eed d\u1ee5ng t\u00ednh n\u0103ng \u0111\u1ed5i port RDP trong Registry ho\u1eb7c thi\u1ebft l\u1eadp VPN Server \u0111\u1ec3 qu\u1ea3n tr\u1ecb an to\u00e0n.<\/p>\n<h2 id=\"section6\" style=\"color: #1e3a8a; font-size: 24px; font-weight: bold; text-align: left; border-left: 5px solid #2563EB; padding-left: 15px; margin-top: 40px; margin-bottom: 20px; line-height: 1.4;\"><span class=\"ez-toc-section\" id=\"6-Cau-hoi-thuong-gap-FAQ-khi-quet-port-va-xu-ly-mang\"><\/span>6. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ) khi qu\u00e9t port v\u00e0 x\u1eed l\u00fd m\u1ea1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"color: #1e3a8a; font-size: 18px; font-weight: bold; margin-top: 20px; margin-bottom: 10px;\"><span class=\"ez-toc-section\" id=\"Trang-thai-LISTENING-ESTABLISHED-TIME-WAIT-la-gi\"><\/span>Tr\u1ea1ng th\u00e1i LISTENING, ESTABLISHED, TIME_WAIT l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; margin-bottom: 20px;\"><strong>LISTENING<\/strong> l\u00e0 \u1ee9ng d\u1ee5ng \u0111ang ch\u1edd k\u1ebft n\u1ed1i t\u1edbi. <strong>ESTABLISHED<\/strong> l\u00e0 m\u1ed9t k\u1ebft n\u1ed1i \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp th\u00e0nh c\u00f4ng v\u00e0 \u0111ang truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u. <strong>TIME_WAIT<\/strong> l\u00e0 k\u1ebft n\u1ed1i \u0111\u00e3 \u0111\u00f3ng nh\u01b0ng h\u1ec7 th\u1ed1ng v\u1eabn gi\u1eef t\u1ea1m m\u1ed9t th\u1eddi gian ng\u1eafn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng r\u1edbt g\u00f3i tin s\u00f3t l\u1ea1i.<\/p>\n<h3 style=\"color: #1e3a8a; font-size: 18px; font-weight: bold; margin-top: 20px; margin-bottom: 10px;\"><span class=\"ez-toc-section\" id=\"Tai-sao-mo-port-modem-xong-check-online-van-bao-Closed\"><\/span>T\u1ea1i sao m\u1edf port modem xong check online v\u1eabn b\u00e1o Closed?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; margin-bottom: 20px;\">L\u1ed7i n\u00e0y x\u1ea3y ra do ba nguy\u00ean nh\u00e2n ch\u00ednh: Nh\u00e0 m\u1ea1ng c\u1ea5p cho b\u1ea1n IP Private (CGNAT) thay v\u00ec Public IP; Windows Firewall \u0111ang ch\u1eb7n c\u00e1c k\u1ebft n\u1ed1i Inbound t\u1edbi port \u0111\u00f3; ho\u1eb7c b\u1ea3n th\u00e2n \u1ee9ng d\u1ee5ng tr\u00ean m\u00e1y c\u1ee7a b\u1ea1n ch\u01b0a ch\u1ea1y (ch\u01b0a \u1edf tr\u1ea1ng th\u00e1i LISTENING).<\/p>\n<h3 style=\"color: #1e3a8a; font-size: 18px; font-weight: bold; margin-top: 20px; margin-bottom: 10px;\"><span class=\"ez-toc-section\" id=\"Cach-kiem-tra-cong-mang-bang-PowerShell\"><\/span>C\u00e1ch ki\u1ec3m tra c\u1ed5ng m\u1ea1ng b\u1eb1ng PowerShell?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; margin-bottom: 20px;\">Tr\u00ean c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u1edbi, thay v\u00ec d\u00f9ng CMD, b\u1ea1n c\u00f3 th\u1ec3 m\u1edf PowerShell v\u00e0 s\u1eed d\u1ee5ng l\u1ec7nh <code>Test-NetConnection -ComputerName [IP] -Port [S\u1ed1 Port]<\/code>. L\u1ec7nh n\u00e0y tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 <em>TcpTestSucceeded: True<\/em> n\u1ebfu port \u0111ang m\u1edf v\u00e0 ph\u1ea3n h\u1ed3i.<\/p>\n<h3 style=\"color: #1e3a8a; font-size: 18px; font-weight: bold; margin-top: 20px; margin-bottom: 10px;\"><span class=\"ez-toc-section\" id=\"Co-phan-mem-nao-truc-quan-hon-thay-vi-dung-lenh-netstat-khong\"><\/span>C\u00f3 ph\u1ea7n m\u1ec1m n\u00e0o tr\u1ef1c quan h\u01a1n thay v\u00ec d\u00f9ng l\u1ec7nh netstat kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; margin-bottom: 20px;\">B\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i ph\u1ea7n m\u1ec1m <strong>TCPView<\/strong> c\u1ee7a Microsoft Sysinternals. \u0110\u00e2y l\u00e0 c\u00f4ng c\u1ee5 d\u1ea1ng \u0111\u1ed3 h\u1ecda, hi\u1ec3n th\u1ecb realtime to\u00e0n b\u1ed9 k\u1ebft n\u1ed1i m\u1ea1ng, t\u00ean ph\u1ea7n m\u1ec1m v\u00e0 cho ph\u00e9p b\u1ea1n click chu\u1ed9t ph\u1ea3i \u0111\u1ec3 &#8220;Kill Process&#8221; d\u1ec5 d\u00e0ng m\u00e0 kh\u00f4ng c\u1ea7n g\u00f5 l\u1ec7nh.<\/p>\n<h3 style=\"color: #1e3a8a; font-size: 18px; font-weight: bold; margin-top: 20px; margin-bottom: 10px;\"><span class=\"ez-toc-section\" id=\"Co-can-khoi-dong-lai-may-tinh-sau-khi-Taskkill-mot-port\"><\/span>C\u00f3 c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y t\u00ednh sau khi Taskkill m\u1ed9t port?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify; margin-bottom: 20px;\">Th\u00f4ng th\u01b0\u1eddng l\u00e0 kh\u00f4ng. Ngay sau khi l\u1ec7nh taskkill th\u1ef1c thi th\u00e0nh c\u00f4ng, c\u1ed5ng m\u1ea1ng s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng ngay l\u1eadp t\u1ee9c. B\u1ea1n ch\u1ec9 c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5 (service) m\u00e0 b\u1ea1n \u0111ang mu\u1ed1n g\u00e1n v\u00e0o c\u1ed5ng \u0111\u00f3 l\u00e0 \u0111\u01b0\u1ee3c.<\/p>\n<div style=\"border-top: 2px dashed #BFDBFE; margin-top: 50px; padding-top: 30px;\">\n<h3 style=\"font-family: 'Be Vietnam Pro', sans-serif; color: #1e3a8a; font-size: 22px; font-weight: bold; margin-bottom: 15px;\"><span class=\"ez-toc-section\" id=\"Tong-ket-va-dinh-huong-quan-tri-mang\"><\/span>T\u1ed5ng k\u1ebft v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng qu\u1ea3n tr\u1ecb m\u1ea1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">L\u00e0m ch\u1ee7 thao t\u00e1c <strong>ki\u1ec3m tra port \u0111ang m\u1edf<\/strong> l\u00e0 k\u1ef9 n\u0103ng b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi m\u1ecdi sysadmin hay l\u1eadp tr\u00ecnh vi\u00ean. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p linh ho\u1ea1t l\u1ec7nh CMD nh\u01b0 <code>netstat -ano<\/code> v\u00e0 <code>taskkill<\/code>, b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 t\u1ef1 ch\u1ea9n \u0111o\u00e1n l\u1ed7i \u0111\u1ee5ng port, x\u00e1c \u0111\u1ecbnh ti\u1ebfn tr\u00ecnh ng\u1ea7m v\u00e0 d\u1ecdn d\u1eb9p m\u00f4i tr\u01b0\u1eddng k\u1ebft n\u1ed1i m\u1ea1ng m\u1ed9t c\u00e1ch ch\u1ee7 \u0111\u1ed9ng. Tuy nhi\u00ean, n\u1ebfu b\u1ea1n th\u01b0\u1eddng xuy\u00ean g\u1eb7p r\u1eafc r\u1ed1i v\u1edbi vi\u1ec7c c\u1ea5u h\u00ecnh NAT modem t\u1ea1i nh\u00e0 hay b\u1ecb nh\u00e0 m\u1ea1ng ch\u1eb7n port, vi\u1ec7c chuy\u1ec3n d\u1ecbch m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c l\u00ean m\u1ed9t h\u1ea1 t\u1ea7ng \u0111\u00e1m m\u00e2y chuy\u00ean nghi\u1ec7p l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd nh\u1ea5t.<\/p>\n<div style=\"background: #EFF6FF; border: 1px solid #2563EB; padding: 30px; margin-top: 25px; border-radius: 12px; text-align: center;\">\n<p style=\"font-family: 'Be Vietnam Pro', sans-serif; font-size: 20px; font-weight: bold; color: #1e3a8a; margin-top: 0;\">Kh\u1edfi t\u1ea1o h\u1ec7 th\u1ed1ng \u0111\u1ed9c l\u1eadp, bypass gi\u1edbi h\u1ea1n m\u1ea1ng c\u00e1 nh\u00e2n<\/p>\n<p style=\"font-size: 15px; margin-bottom: 20px; color: #4b5563;\">S\u1edf h\u1eefu IP t\u0129nh c\u00f4ng khai, to\u00e0n quy\u1ec1n qu\u1ea3n tr\u1ecb c\u1ed5ng m\u1ea1ng v\u00e0 firewall kh\u00f4ng r\u00e0o c\u1ea3n.<\/p>\n<p><a style=\"background: #2563EB; color: #ffffff; padding: 12px 30px; text-decoration: none; font-weight: 600; border-radius: 6px; display: inline-block;\" href=\"https:\/\/interdata.vn\/thue-vps\/\" target=\"_blank\" rel=\"noopener\">Tri\u1ec3n khai m\u00e1y ch\u1ee7 \u1ea3o ngay \u27f6<\/a><\/p>\n<\/div>\n<\/div>\n<p style=\"text-align: justify; font-size: 13px; font-style: italic; color: #6b7280; margin-top: 30px; border-top: 1px solid #E5E7EB; padding-top: 15px;\"><span style=\"font-size: 100%;\"><em>L\u01b0u \u00fd: C\u00e1c t\u1eadp l\u1ec7nh CMD, th\u00f4ng s\u1ed1 v\u00e0 c\u1ea5u h\u00ecnh m\u1ea1ng \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y trong b\u00e0i vi\u1ebft mang t\u00ednh tham kh\u1ea3o v\u00e0 \u00e1p d\u1ee5ng ch\u1ee7 y\u1ebfu cho m\u00f4i tr\u01b0\u1eddng Windows OS. \u0110\u1ecbnh d\u1ea1ng k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i tr\u00ean c\u00e1c phi\u00ean b\u1ea3n Windows kh\u00e1c nhau. Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb c\u1ea7n hi\u1ec3u r\u00f5 ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c PID tr\u01b0\u1edbc khi ra l\u1ec7nh t\u1eaft ng\u1ea7m, \u0111\u1ed3ng th\u1eddi ki\u1ec3m tra k\u1ef9 lu\u1eadt Firewall v\u00e0 \u0111\u00e1nh gi\u00e1 r\u1ee7i ro b\u1ea3o m\u1eadt tr\u01b0\u1edbc khi m\u1edf b\u1ea5t k\u1ef3 c\u1ed5ng d\u1ecbch v\u1ee5 n\u00e0o tr\u00ean h\u1ec7 th\u1ed1ng production.<\/em><\/span><\/p>\n\n\n<style>\n.interdata-plan-carousel{--blue:#005bea;--blue-dark:#004dcc;--text:#071832;--border:#d8e6fb;--bg:#f3f8ff;container-type:inline-size;background:var(--bg);padding:14px 12px;overflow:hidden}\n.interdata-carousel-heading{color:#003fbd;font-size:18px;line-height:1.35;font-weight:800;text-align:center;margin:0 0 14px}\n.interdata-plan-track{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:0 0 8px;-webkit-overflow-scrolling:touch;scrollbar-width:none}\n.interdata-plan-track::-webkit-scrollbar{display:none}\n.interdata-plan-card,.interdata-plan-card *{box-sizing:border-box}\n.interdata-plan-card{flex:0 0 calc(25% - 9px);min-width:205px;background:#fff;border:1px solid var(--border);border-radius:8px;padding:18px 14px 14px;min-height:382px;display:flex;flex-direction:column;scroll-snap-align:start;box-shadow:0 5px 14px rgba(0,62,145,.08)}\n.interdata-plan-title{color:var(--blue-dark);font-size:17px;line-height:1.25;font-weight:800;text-align:center;margin:0 0 8px}\n.interdata-plan-price{color:var(--blue-dark);font-size:32px;line-height:1;font-weight:900;text-align:center;margin-bottom:14px;white-space:nowrap;letter-spacing:0}\n.interdata-plan-price span{font-size:12px;font-weight:800;margin-left:2px}\n.interdata-plan-badge{align-self:center;display:inline-flex;align-items:center;justify-content:center;background:#ff3934;color:#fff;border-radius:5px;padding:8px 10px;font-size:10px;line-height:1;font-weight:800;margin-bottom:18px;white-space:nowrap}\n.interdata-plan-features{list-style:none!important;padding:0!important;margin:0!important}\n.interdata-plan-features li{display:flex;gap:8px;align-items:flex-start;color:var(--text);font-size:13px;line-height:1.35;font-weight:700;text-align:left;margin:0 0 11px!important;padding:0!important}\n.interdata-plan-icon{width:15px;min-width:15px;height:15px;color:#0069ff;margin-top:2px}\n.interdata-plan-icon svg{display:block;width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}\n.interdata-plan-spacer{flex:1}\n.interdata-plan-button{display:flex;align-items:center;justify-content:center;min-height:44px;width:100%;background:var(--blue);color:#fff!important;border-radius:5px;font-size:14px;font-weight:800;text-decoration:none!important;box-shadow:0 7px 14px rgba(0,91,234,.24);transition:transform .2s ease,background .2s ease}\n.interdata-plan-button:hover{background:var(--blue-dark);color:#fff!important;transform:translateY(-1px)}\n@container (max-width:860px){.interdata-plan-card{flex-basis:calc(33.333% - 8px);min-width:205px}}\n@container (max-width:640px){.interdata-plan-card{flex-basis:calc(50% - 7px);min-width:215px}}\n@container (max-width:480px){.interdata-plan-carousel{padding:12px 10px}.interdata-carousel-heading{font-size:16px}.interdata-plan-card{flex-basis:86%;min-width:235px}.interdata-plan-price{font-size:31px}}\n@media (max-width:360px){.interdata-plan-card{flex-basis:90%;min-width:220px}.interdata-plan-price{font-size:29px}.interdata-plan-badge{font-size:9px}}\n<\/style>\n\n<div class=\"interdata-plan-carousel\">\n  <div class=\"interdata-carousel-heading\"><span style=\"font-family: Roboto, sans-serif; color: red;\">Si\u00eau \u01afu \u0110\u00e3i VPS \/ CLOUD SERVER - Ti\u1ebft Ki\u1ec7m \u0110\u1ebfn 70%<\/span><\/div>\n\n  <svg width=\"0\" height=\"0\" style=\"position:absolute;visibility:hidden\" aria-hidden=\"true\">\n    <symbol id=\"id-icon-cpu\" viewBox=\"0 0 24 24\"><rect x=\"7\" y=\"7\" width=\"10\" height=\"10\" rx=\"2\"><\/rect><path d=\"M4 9h3M4 15h3M17 9h3M17 15h3M9 4v3M15 4v3M9 17v3M15 17v3\"><\/path><path d=\"M10 10h4v4h-4z\"><\/path><\/symbol>\n    <symbol id=\"id-icon-ram\" viewBox=\"0 0 24 24\"><rect x=\"4\" y=\"8\" width=\"16\" height=\"8\" rx=\"2\"><\/rect><path d=\"M7 16v2M11 16v2M15 16v2M19 16v2M7 11h1M11 11h1M15 11h1\"><\/path><\/symbol>\n    <symbol id=\"id-icon-storage\" viewBox=\"0 0 24 24\"><rect x=\"6\" y=\"3\" width=\"12\" height=\"18\" rx=\"2\"><\/rect><path d=\"M9 7h6\"><\/path><circle cx=\"12\" cy=\"16\" r=\"1.5\"><\/circle><\/symbol>\n    <symbol id=\"id-icon-network\" viewBox=\"0 0 24 24\"><path d=\"M5 12.5a10 10 0 0 1 14 0\"><\/path><path d=\"M8.5 16a5 5 0 0 1 7 0\"><\/path><path d=\"M12 19h.01\"><\/path><\/symbol>\n    <symbol id=\"id-icon-gift\" viewBox=\"0 0 24 24\"><rect x=\"3\" y=\"8\" width=\"18\" height=\"13\" rx=\"2\"><\/rect><path d=\"M12 8v13M3 12h18\"><\/path><path d=\"M7.5 8C6.1 8 5 6.9 5 5.5S6.1 3 7.5 3C10 3 12 8 12 8\"><\/path><path d=\"M16.5 8C17.9 8 19 6.9 19 5.5S17.9 3 16.5 3C14 3 12 8 12 8\"><\/path><\/symbol>\n  <\/svg>\n\n  <div class=\"interdata-plan-track\">\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\"><span class=\"ez-toc-section\" id=\"Premium-Base-3\"><\/span>Premium Base<span class=\"ez-toc-section-end\"><\/span><\/h3>\n      <div class=\"interdata-plan-price\">299K<span>\/3 Th\u00e1ng<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>2 vCore Intel Xeon Scalable<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>2 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>30 GB NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 300 Mbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/best-value-plans-2026\/best-value-plans-premium-base\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\"><span class=\"ez-toc-section\" id=\"Premium-Base-4\"><\/span>Premium Base<span class=\"ez-toc-section-end\"><\/span><\/h3>\n      <div class=\"interdata-plan-price\">999K<span>\/n\u0103m<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>3 vCore Intel Xeon<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>3 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>30 GB SSD NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 300 Mbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/cyber-week-2026\/premium-base\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\"><span class=\"ez-toc-section\" id=\"Premium-Pro-2\"><\/span>Premium Pro<span class=\"ez-toc-section-end\"><\/span><\/h3>\n      <div class=\"interdata-plan-price\">2.599K<span>\/n\u0103m<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>6 vCore Intel Xeon Scalable<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>8 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>80 GB SSD NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 350 Mbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/cyber-week-2026\/premium-pro\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n\n    <article class=\"interdata-plan-card\">\n      <h3 class=\"interdata-plan-title\">Cloud-Day - Base<\/h3>\n      <div class=\"interdata-plan-price\">2.666K<span>\/n\u0103m<\/span><\/div>\n      <div class=\"interdata-plan-badge\">GIA H\u1ea0N KH\u00d4NG \u0110\u1ed4I GI\u00c1<\/div>\n      <ul class=\"interdata-plan-features\">\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-gift\"><\/use><\/svg><\/span>T\u1eb7ng 80 GB S3 v\u00e0 1 N\u0102M S\u1eec D\u1ee4NG khi mua 2 n\u0103m tr\u1edf l\u00ean<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-cpu\"><\/use><\/svg><\/span>4 vCPU AMD EPYC<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-ram\"><\/use><\/svg><\/span>6 GB RAM<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-storage\"><\/use><\/svg><\/span>60 GB SSD NVMe U.2<\/li>\n        <li><span class=\"interdata-plan-icon\"><svg><use href=\"#id-icon-network\"><\/use><\/svg><\/span>Network: 10 Gbps<\/li>\n      <\/ul>\n      <div class=\"interdata-plan-spacer\"><\/div>\n      <a class=\"interdata-plan-button\" href=\"https:\/\/support.interdata.vn\/index.php?rp=\/store\/cloud-day-by-interdata-2026\/cloud-day-base\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u0110\u0103ng k\u00fd ngay<\/a>\n    <\/article>\n  <\/div>\n<\/div>\n\n\t<div id=\"gap-11958152\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-11958152 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n","protected":false},"excerpt":{"rendered":"<p>Khi c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 \u1ea3o c\u1ee5c b\u1ed9 nh\u01b0 XAMPP, c\u01a1 s\u1edf d\u1eef li\u1ec7u SQL hay tri\u1ec3n khai m\u1ed9t \u1ee9ng d\u1ee5ng m\u1edbi, s\u1ef1 c\u1ed1 \u0111\u1ee5ng c\u1ed5ng m\u1ea1ng l\u00e0 l\u1ed7i th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra nh\u1ea5t. \u0110\u1ec3 x\u1eed l\u00fd d\u1ee9t \u0111i\u1ec3m, thao t\u00e1c \u0111\u1ea7u ti\u00ean b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n l\u00e0 ki\u1ec3m tra port \u0111ang m\u1edf<\/p>\n","protected":false},"author":11,"featured_media":42147,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83,151],"tags":[],"class_list":["post-42145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bao-mat-an-ninh-mang","category-mang"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/42145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=42145"}],"version-history":[{"count":2,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/42145\/revisions"}],"predecessor-version":[{"id":42154,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/42145\/revisions\/42154"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/42147"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=42145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=42145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=42145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}