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Cấu hình DNS Client đúng cách trên Windows – Có GUI và có PowerShell luôn! (Open)

Nặc danh

thg 6 16, 2025

Khi một máy tính trong mạng nội bộ không phân giải được tên miền như server01.vnpro.local, đừng vội đổ lỗi cho mạng hay domain controller. Rất có thể bạn quên cấu hình đúng DNS client!

Trong môi trường Windows, DNS là thành phần “xương sống” để Active Directory, email nội bộ, và dịch vụ chia sẻ file hoạt động trơn tru.

Vậy cấu hình DNS client ở đâu?

Cách 1 – Dành cho người mới, dùng GUI:

Mở Network Connections, chọn card mạng → Properties

Chọn Internet Protocol Version 4 (TCP/IPv4) → Properties

Tick chọn: Use the following DNS server addresses

Nhập:
Preferred DNS:

172.16.0.10

Alternate DNS: 172.16.0.21

Bấm Advanced > DNS để kiểm tra thứ tự ưu tiên DNS

Cách 2 – Dành cho dân IT, dùng PowerShell:

Set-DnsClientServerAddress -InterfaceIndex 12 -ServerAddresses ("172.16.0.10", "172.16.0.21")

Tip: Dùng Get-NetAdapter để biết InterfaceIndex.

Khi nào cần cấu DNS thủ công?

Khi máy dùng IP tĩnh

Khi bạn muốn trỏ về DNS nội bộ, không dùng DNS của ISP

Khi join domain mà mãi không resolve được tên domain.local

Kiểm tra lại sau khi cấu hình:

Get-DnsClientServerAddress

Nếu cấu hình đúng, bạn có thể ping server01 hoặc nslookup vnpro.local mà không bị lỗi.

DNS cấu sai, domain join fail, hoặc chậm trễ trong GPO – tất cả đều có thể do cấu hình client DNS chưa đúng!

Anh em đã từng gặp lỗi DNS chưa? Comment chia sẻ để cùng học nhé!

Windows 11 Windows Server

Thêm bình luận

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