https://blog.ohtly.com/tags/%E6%A0%91%E8%8E%93%E6%B4%BE/ Recent content in 树莓派 on OHTLY Blog Hugo zh-cn Thu, 18 Jun 2026 20:15:12 +0800 https://blog.ohtly.com/posts/2026-06-18-dnsmasq-on-rpi/ Thu, 18 Jun 2026 20:15:12 +0800 https://blog.ohtly.com/posts/2026-06-18-dnsmasq-on-rpi/ <h2 id="环境"> 环境 <a class="heading-link" href="#%e7%8e%af%e5%a2%83"> <i class="fa-solid fa-link" aria-hidden="true" title="链接到标题"></i> <span class="sr-only">链接到标题</span> </a> </h2> <table> <thead> <tr> <th>项目</th> <th>内容</th> </tr> </thead> <tbody> <tr> <td>硬件</td> <td>Raspberry Pi 4 (4GB)</td> </tr> <tr> <td>系统</td> <td>Ubuntu Server 24.04.2 LTS (arm64)</td> </tr> <tr> <td>Docker</td> <td>29.3.0 + Compose v5.1.0</td> </tr> </tbody> </table> <h2 id="方案选型"> 方案选型 <a class="heading-link" href="#%e6%96%b9%e6%a1%88%e9%80%89%e5%9e%8b"> <i class="fa-solid fa-link" aria-hidden="true" title="链接到标题"></i> <span class="sr-only">链接到标题</span> </a> </h2> <p>旧的 DNS 服务器不打算继续用了，在树莓派 4 上重新搭一个。需求很简单：内网设备 hostname 解析 <code>*.lan</code>。</p> <p>备选方案：</p> <table> <thead> <tr> <th>方案</th> <th>语言</th> <th>特点</th> <th>结论</th> </tr> </thead> <tbody> <tr> <td>dnsmasq</td> <td>C</td> <td>极轻量，单二进制，2000年至今</td> <td>✅ 够用</td> </tr> <tr> <td>systemd-resolved</td> <td>C</td> <td>Ubuntu 自带，零安装</td> <td>❌ 对外监听需额外配置，<code>expand-hosts</code> 不支持</td> </tr> <tr> <td>unbound</td> <td>C</td> <td>递归解析器，DNSSEC 强</td> <td>❌ 大炮打蚊子</td> </tr> <tr> <td>CoreDNS</td> <td>Go</td> <td>云原生，插件化</td> <td>❌ 太重</td> </tr> <tr> <td>blocky</td> <td>Go</td> <td>Web UI，策略丰富</td> <td>❌ 功能过剩</td> </tr> </tbody> </table> <p>dnsmasq 入选理由：轻量、稳定、内网场景足够。</p>