# DNS ( Domain Name System ) 當瀏覽器發送 request 的時候,其實是發送一個網址,但要怎麼知道網址的 IP 位置呢?就是靠 DNS  ```javascript= // Terminal 查詢網域的 IP 位置,輸入 nslookup <要查詢的網域名稱> ``` ###### tags:`前端筆記` {%hackmd @unayojanni/H1Qq0uKkK %}
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