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<button id=search-close title=取消搜索 type=reset aria-label=取消搜索><svg class="icon menu-close"><use xlink:href="/v1.20/img/icons.svg#menu-close"/></svg></button></form></nav></header><div class=banner-container></div><article class=post itemscope itemtype=http://schema.org/BlogPosting><div class=header-content><h1>DNS 证书管理</h1><p>在 Istio 中配置和管理 DNS 证书。</p></div><p class=post-author>Nov 14, 2019 <span>| </span>By Lei Tang - Google</p><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.20/img/icons.svg#callout-warning"/></svg></div><div class=content>该博客文章是在 Istio 1.4 的版本下编写的，因此其中某些内容现在可能已过时。</div></aside></div><div><p>默认情况下, <code>Istio</code> 的 <code>DNS</code> 证书是由 <code>Citadel</code> 来管理的。<code>Citadel</code> 是一个功能强大的组件，不仅维护自己的私有签名密钥，而且充当证书颁发机构（CA）。</p><p>在 <code>Istio</code> 的 1.4 版本中，我们引入了一项新功能，可以安全地配置和管理由 <code>Kubernetes CA</code> 签名的 <code>DNS</code> 证书，它具有以下优点。</p><ul><li><p>轻量级 <code>DNS</code> 证书管理，不依赖于 <code>Citadel</code>。</p></li><li><p>与 <code>Citadel</code> 不同的是，此功能不维护私有签名密钥，从而增强了安全性。</p></li><li><p>简化了向 <code>TLS</code> 客户端分发根证书。客户不再需要等待 <code>Citadel</code> 生成和分发其 <code>CA</code> 证书。</p></li></ul><p>下图显示了在 <code>Istio</code> 中配置和管理 <code>DNS</code> 证书的体系结构。<code>Chiron</code> 是在 <code>Istio</code> 中配置和管理 <code>DNS</code> 证书的组件。</p><figure style=width:50%><div class=wrapper-with-intrinsic-ratio style=padding-bottom:82.13367609254499%><a data-skipendnotes=true href=/v1.20/zh/blog/2019/dns-cert/architecture.png title="在 Istio 中配置和管理 DNS 证书的架构"><img class=element-to-stretch src=/v1.20/zh/blog/2019/dns-cert/architecture.png alt="在 Istio 中配置和管理 DNS 证书的架构"></a></div><figcaption>在 Istio 中配置和管理 DNS 证书的架构</figcaption></figure><p>要尝试此新功能，请参阅 <a href=/v1.20/zh/docs/tasks/security/cert-management/dns-cert>DNS 证书管理内容</a>。</p></div><nav class=pagenav><div class=left></div><div class=right><a title="正式启用访问 Istio 资源。" href=/v1.20/zh/blog/2019/announcing-istio-client-go/ class=next-link>Istio client-go 发布公告<svg class="icon right-arrow"><use xlink:href="/v1.20/img/icons.svg#right-arrow"/></svg></a></div></nav></article><footer class=footer><div class="footer-wrapper container-l"><div class="user-links footer-links"><a class=channel title='Istio 的代码在 GitHub 上开发' href=https://github.com/istio/community aria-label=GitHub><svg class="icon github"><use xlink:href="/v1.20/img/icons.svg#github"/></svg>
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