https://jackylee3362.github.io/tags/%E7%BD%91%E7%BB%9C/ Recent content in 网络 on JackyLee's Blog https://jackylee3362.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E https://jackylee3362.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E Hugo en Sun, 16 Aug 2026 00:00:00 +0000 https://jackylee3362.github.io/wiki/cs/cli/ufw/ Sun, 16 Aug 2026 00:00:00 +0000 https://jackylee3362.github.io/wiki/cs/cli/ufw/ <blockquote> <p>查看 <code>tldr ufw</code></p> </blockquote> <h2 id="安装-ufw">安装 ufw</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-sh" data-lang="sh"><span class="line"><span class="cl">sudo apt install ufw </span></span></code></pre></div><h2 id="开启和关闭-ufw">开启和关闭 ufw</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-sh" data-lang="sh"><span class="line"><span class="cl">sudo ufw <span class="nb">enable</span> </span></span><span class="line"><span class="cl">sudo ufw disable </span></span></code></pre></div><h2 id="添加规则">添加规则</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-sh" data-lang="sh"><span class="line"><span class="cl">sudo ufw allow </span></span><span class="line"><span class="cl">sudo ufw allow 22/tcp <span class="c1"># 例如添加ssh端口,防止断开</span> </span></span></code></pre></div><h2 id="拒绝规则">拒绝规则</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-sh" data-lang="sh"><span class="line"><span class="cl">sudo ufw deny 22/tcp </span></span></code></pre></div><h2 id="查看规则">查看规则</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-sh" data-lang="sh"><span class="line"><span class="cl">sudo ufw status </span></span><span class="line"><span class="cl">sudo ufw status verbose </span></span></code></pre></div><h2 id="删除规则">删除规则</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-sh" data-lang="sh"><span class="line"><span class="cl"><span class="c1"># 删除</span> </span></span><span class="line"><span class="cl">sudo ufw delete <span class="nv">$rule_number</span> </span></span></code></pre></div>