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<!DOCTYPE html><html lang="zh-CN" data-theme="light"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"><title>Linux/Windows/Mac刷新DNS缓存 | 王恒's Blog</title><meta name="keywords" content="Java,Hadoop,Linux,Shell,C#,PHP,Python,Coder,Arduino,Raspberry pi"><meta name="author" content="王恒"><meta name="copyright" content="王恒"><meta name="format-detection" content="telephone=no"><meta name="theme-color" content="#ffffff"><meta name="description" content="有时候在网络环境比较糟糕的情况下，修改了域名的A记录执行，本地DNS却迟迟不主动更新。这个时候就需要我们去手动刷新一下本地的DNS记录缓存，方法记录如下： Windows ( XP, ME, 2000, 98)系统： 开始——>运行——>输入cmd并回车 在打开的命令行窗口，输入ipconfig /flushdns 完成！你的Windows DNS 缓存已经得到刷新。 Wind">
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<em>有时候在网络环境比较糟糕的情况下，修改了域名的A记录执行，本地DNS却迟迟不主动更新。这个时候就需要我们去手动刷新一下本地的DNS记录缓存，方法记录如下：
</em><strong style="line-height: 1.714285714; font-size: 1rem;">Windows ( XP, ME, 2000, 98)系统：</strong>
<ol>
<li>开始——>运行——>输入cmd并回车</li>
<li>在打开的命令行窗口，输入ipconfig /flushdns</li>
<li>完成！你的Windows DNS 缓存已经得到刷新。</li>
</ol>
<p><strong>Windows Vista 或 Windows 7 系统：</strong><br>1、打开命令提示符，并选择以管理员身份运行<br>2. 在打开的命令行窗口，输入ipconfig /flushdns<br>你将会看到如下的确认信息： Windows IP 配置<br>已成功刷新 DNS 解析缓存。</p>
<p><strong>Linux系统：</strong><br>刷新 DNS 缓存需要重起 nscd daemon：</p>
<ol>
<li>要重起nscd daemon，在命令行窗口（terminal）输入/etc/rc.d/init.d/nscd restart</li>
<li>命令执行完毕，你的DNS缓存就被刷新了。<br>如果是比较新的Linux版本，你可能需要使用下面的命令： /etc/init.d/nscd restart</li>
</ol>
<p><strong>Mac OS X苹果系统：</strong></p>
<ol>
<li><p>在命令行窗口（terminal）输入lookupd -flushcache<br>例如：bash$ lookupd -flushcache</p>
</li>
<li><p>命令执行完毕，你的DNS缓存就得到了更新。<br>较新的苹果Mac OS X系统应该使用下面的命令： type dscacheutil -flushcache</p>
</content></li>
</ol>
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