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itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">TLS Settings</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本:v2.5</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">本页总览</button></div><div class="theme-doc-markdown markdown"><header><h1>TLS Settings</h1></header><p>Changing the default TLS settings depends on the chosen installation method.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="running-rancher-in-a-highly-available-kubernetes-cluster">Running Rancher in a highly available Kubernetes cluster<a href="#running-rancher-in-a-highly-available-kubernetes-cluster" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接">​</a></h2><p>When you install Rancher inside of a Kubernetes cluster, TLS is offloaded at the cluster&#x27;s ingress controller. The possible TLS settings depend on the used ingress controller:</p><ul><li>nginx-ingress-controller (default for RKE1 and RKE2): <a href="https://kubernetes.github.io/ingress-nginx/user-guide/tls/#default-tls-version-and-ciphers" target="_blank" rel="noopener noreferrer">Default TLS Version and Ciphers</a>.</li><li>traefik (default for K3s): <a href="https://doc.traefik.io/traefik/https/tls/#tls-options" target="_blank" rel="noopener noreferrer">TLS Options</a>.</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="running-rancher-in-a-single-docker-container">Running Rancher in a single Docker container<a href="#running-rancher-in-a-single-docker-container" class="hash-link" aria-label="标题的直接链接" title="标题的直接链接">​</a></h2><p>The default TLS configuration only accepts TLS 1.2 and secure TLS cipher suites. You can change this by setting the following environment variables:</p><table><thead><tr><th>Parameter</th><th>Description</th><th>Default</th><th>Available options</th></tr></thead><tbody><tr><td><code>CATTLE_TLS_MIN_VERSION</code></td><td>Minimum TLS version</td><td><code>1.2</code></td><td><code>1.0</code>, <code>1.1</code>, <code>1.2</code>, <code>1.3</code></td></tr><tr><td><code>CATTLE_TLS_CIPHERS</code></td><td>Allowed TLS cipher suites</td><td><code>TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256</code>,<br><code>TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384</code>,<br><code>TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305</code>,<br><code>TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256</code>,<br><code>TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384</code>,<br><code>TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305</code></td><td>See <a href="https://golang.org/pkg/crypto/tls/#pkg-constants" target="_blank" rel="noopener noreferrer">Golang tls constants</a></td></tr></tbody></table></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/rancher/rancher-docs/edit/main/versioned_docs/version-2.5/reference-guides/installation-references/tls-settings.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>编辑此页</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">最后<!-- -->于 <b><time datetime="2023-05-26T18:19:30.000Z">2023年5月26日</time></b> <!-- -->更新</span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="文档分页导航"><a class="pagination-nav__link pagination-nav__link--prev" href="/zh/v2.5/reference-guides/installation-references/helm-chart-options"><div class="pagination-nav__sublabel">上一页</div><div class="pagination-nav__label">Rancher Helm Chart Options</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/zh/v2.5/reference-guides/installation-references/feature-flags"><div class="pagination-nav__sublabel">下一页</div><div class="pagination-nav__label">Feature Flags</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#running-rancher-in-a-highly-available-kubernetes-cluster" class="table-of-contents__link toc-highlight">Running Rancher in a highly available Kubernetes cluster</a></li><li><a href="#running-rancher-in-a-single-docker-container" class="table-of-contents__link toc-highlight">Running Rancher in a single Docker container</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2024 SUSE Rancher. 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