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markdown"><header><h1>Technical FAQ</h1></header><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-can-i-reset-the-administrator-password">How can I reset the administrator password?<a href="#how-can-i-reset-the-administrator-password" class="hash-link" aria-label="Direct link to How can I reset the administrator password?" title="Direct link to How can I reset the administrator password?"></a></h3><p>Docker Install:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ docker exec -ti <container_id> reset-password</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">New password for default administrator (user-xxxxx):</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"><new_password></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Kubernetes install (Helm):</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ KUBECONFIG=./kube_config_cluster.yml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ kubectl --kubeconfig $KUBECONFIG -n cattle-system exec $(kubectl --kubeconfig $KUBECONFIG -n cattle-system get pods -l app=rancher --no-headers | head -1 | awk '{ print $1 }') -c rancher -- reset-password</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">New password for default administrator (user-xxxxx):</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"><new_password></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="i-deleteddeactivated-the-last-admin-how-can-i-fix-it">I deleted/deactivated the last admin, how can I fix it?<a href="#i-deleteddeactivated-the-last-admin-how-can-i-fix-it" class="hash-link" aria-label="Direct link to I deleted/deactivated the last admin, how can I fix it?" title="Direct link to I deleted/deactivated the last admin, how can I fix it?"></a></h3><p>Docker Install:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ docker exec -ti <container_id> ensure-default-admin</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">New default administrator (user-xxxxx)</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">New password for default administrator (user-xxxxx):</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"><new_password></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Kubernetes install (Helm):</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ KUBECONFIG=./kube_config_cluster.yml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ kubectl --kubeconfig $KUBECONFIG -n cattle-system exec $(kubectl --kubeconfig $KUBECONFIG -n cattle-system get pods -l app=rancher | grep '1/1' | head -1 | awk '{ print $1 }') -- ensure-default-admin</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">New password for default administrator (user-xxxxx):</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"><new_password></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-can-i-enable-debug-logging">How can I enable debug logging?<a href="#how-can-i-enable-debug-logging" class="hash-link" aria-label="Direct link to How can I enable debug logging?" title="Direct link to How can I enable debug logging?"></a></h3><p>See <a href="/troubleshooting/other-troubleshooting-tips/logging">Troubleshooting: Logging</a></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="my-clusterip-does-not-respond-to-ping">My ClusterIP does not respond to ping<a href="#my-clusterip-does-not-respond-to-ping" class="hash-link" aria-label="Direct link to My ClusterIP does not respond to ping" title="Direct link to My ClusterIP does not respond to ping"></a></h3><p>ClusterIP is a virtual IP, which will not respond to ping. Best way to test if the ClusterIP is configured correctly, is by using <code>curl</code> to access the IP and port to see if it responds.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="where-can-i-manage-node-templates">Where can I manage Node Templates?<a href="#where-can-i-manage-node-templates" class="hash-link" aria-label="Direct link to Where can I manage Node Templates?" title="Direct link to Where can I manage Node Templates?"></a></h3><p>Node Templates can be accessed by opening your account menu (top right) and selecting <code>Node Templates</code>.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="why-is-my-layer-4-load-balancer-in-pending-state">Why is my Layer-4 Load Balancer in <code>Pending</code> state?<a href="#why-is-my-layer-4-load-balancer-in-pending-state" class="hash-link" aria-label="Direct link to why-is-my-layer-4-load-balancer-in-pending-state" title="Direct link to why-is-my-layer-4-load-balancer-in-pending-state"></a></h3><p>The Layer-4 Load Balancer is created as <code>type: LoadBalancer</code>. In Kubernetes, this needs a cloud provider or controller that can satisfy these requests, otherwise these will be in <code>Pending</code> state forever. More information can be found on <a href="/how-to-guides/new-user-guides/kubernetes-clusters-in-rancher-setup/set-up-cloud-providers">Cloud Providers</a> or <a href="https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/" target="_blank" rel="noopener noreferrer">Create External Load Balancer</a></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="where-is-the-state-of-rancher-stored">Where is the state of Rancher stored?<a href="#where-is-the-state-of-rancher-stored" class="hash-link" aria-label="Direct link to Where is the state of Rancher stored?" title="Direct link to Where is the state of Rancher stored?"></a></h3><ul><li>Docker Install: in the embedded etcd of the <code>rancher/rancher</code> container, located at <code>/var/lib/rancher</code>.</li><li>Kubernetes install: in the etcd of the RKE cluster created to run Rancher.</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-are-the-supported-docker-versions-determined">How are the supported Docker versions determined?<a href="#how-are-the-supported-docker-versions-determined" class="hash-link" aria-label="Direct link to How are the supported Docker versions determined?" title="Direct link to How are the supported Docker versions determined?"></a></h3><p>We follow the validated Docker versions for upstream Kubernetes releases. The validated versions can be found under <a href="https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.10.md#external-dependencies" target="_blank" rel="noopener noreferrer">External Dependencies</a> in the Kubernetes release CHANGELOG.md.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-can-i-access-nodes-created-by-rancher">How can I access nodes created by Rancher?<a href="#how-can-i-access-nodes-created-by-rancher" class="hash-link" aria-label="Direct link to How can I access nodes created by Rancher?" title="Direct link to How can I access nodes created by Rancher?"></a></h3><p>SSH keys to access the nodes created by Rancher can be downloaded via the <strong>Nodes</strong> view. Choose the node which you want to access and click on the vertical ⋮ button at the end of the row, and choose <strong>Download Keys</strong> as shown in the picture below.</p><p><img loading="lazy" alt="Download Keys" src="/assets/images/downloadsshkeys-617979ebc3df306cf60b60325923b283.png" width="442" height="426" class="img_ev3q"></p><p>Unzip the downloaded zip file, and use the file <code>id_rsa</code> to connect to you host. Be sure to use the correct username (<code>rancher</code> or <code>docker</code> for RancherOS, <code>ubuntu</code> for Ubuntu, <code>ec2-user</code> for Amazon Linux)</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">$ ssh -i id_rsa user@ip_of_node</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-can-i-automate-task-x-in-rancher">How can I automate task X in Rancher?<a href="#how-can-i-automate-task-x-in-rancher" class="hash-link" aria-label="Direct link to How can I automate task X in Rancher?" title="Direct link to How can I automate task X in Rancher?"></a></h3><p>The UI consists of static files, and works based on responses of the API. That means every action/task that you can execute in the UI, can be automated via the API. There are 2 ways to do this:</p><ul><li>Visit <code>https://your_rancher_ip/v3</code> and browse the API options.</li><li>Capture the API calls when using the UI (Most commonly used for this is <a href="https://developers.google.com/web/tools/chrome-devtools/#network" target="_blank" rel="noopener noreferrer">Chrome Developer Tools</a> but you can use anything you like)</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="the-ip-address-of-a-node-changed-how-can-i-recover">The IP address of a node changed, how can I recover?<a href="#the-ip-address-of-a-node-changed-how-can-i-recover" class="hash-link" aria-label="Direct link to The IP address of a node changed, how can I recover?" title="Direct link to The IP address of a node changed, how can I recover?"></a></h3><p>A node is required to have a static IP configured (or a reserved IP via DHCP). If the IP of a node has changed, you will have to remove it from the cluster and readd it. After it is removed, Rancher will update the cluster to the correct state. If the cluster is no longer in <code>Provisioning</code> state, the node is removed from the cluster.</p><p>When the IP address of the node changed, Rancher lost connection to the node, so it will be unable to clean the node properly. See <a href="/how-to-guides/new-user-guides/manage-clusters/clean-cluster-nodes">Cleaning cluster nodes</a> to clean the node.</p><p>When the node is removed from the cluster, and the node is cleaned, you can readd the node to the cluster.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-can-i-add-more-argumentsbindsenvironment-variables-to-kubernetes-components-in-a-rancher-launched-kubernetes-cluster">How can I add more arguments/binds/environment variables to Kubernetes components in a Rancher Launched Kubernetes cluster?<a href="#how-can-i-add-more-argumentsbindsenvironment-variables-to-kubernetes-components-in-a-rancher-launched-kubernetes-cluster" class="hash-link" aria-label="Direct link to How can I add more arguments/binds/environment variables to Kubernetes components in a Rancher Launched Kubernetes cluster?" title="Direct link to How can I add more arguments/binds/environment variables to Kubernetes components in a Rancher Launched Kubernetes cluster?"></a></h3><p>You can add more arguments/binds/environment variables via the <a href="/reference-guides/cluster-configuration/rancher-server-configuration/rke1-cluster-configuration#rke-cluster-config-file-reference">Config File</a> option in Cluster Options. For more information, see the <a href="https://rancher.com/docs/rke/latest/en/config-options/services/services-extras/" target="_blank" rel="noopener noreferrer">Extra Args, Extra Binds, and Extra Environment Variables</a> in the RKE documentation or browse the <a href="https://rancher.com/docs/rke/latest/en/example-yamls/" target="_blank" rel="noopener noreferrer">Example Cluster.ymls</a>.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-do-i-check-if-my-certificate-chain-is-valid">How do I check if my certificate chain is valid?<a href="#how-do-i-check-if-my-certificate-chain-is-valid" class="hash-link" aria-label="Direct link to How do I check if my certificate chain is valid?" title="Direct link to How do I check if my certificate chain is valid?"></a></h3><p>Use the <code>openssl verify</code> command to validate your certificate chain:</p><div class="theme-admonition theme-admonition-tip alert alert--success admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span>tip</div><div class="admonitionContent_S0QG"><p>Configure <code>SSL_CERT_DIR</code> and <code>SSL_CERT_FILE</code> to a dummy location to make sure the OS-installed certificates are not used when verifying manually.</p></div></div><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">SSL_CERT_DIR=/dummy SSL_CERT_FILE=/dummy openssl verify -CAfile ca.pem rancher.yourdomain.com.pem</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">rancher.yourdomain.com.pem: OK</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>If you receive the error <code>unable to get local issuer certificate</code>, the chain is incomplete. This usually means that there is an intermediate CA certificate that issued your server certificate. If you already have this certificate, you can use it in the verification of the certificate like shown below:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">SSL_CERT_DIR=/dummy SSL_CERT_FILE=/dummy openssl verify -CAfile ca.pem -untrusted intermediate.pem rancher.yourdomain.com.pem</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">rancher.yourdomain.com.pem: OK</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>If you have successfully verified your certificate chain, you should include needed intermediate CA certificates in the server certificate to complete the certificate chain for any connection made to Rancher (for example, by the Rancher agent). The order of the certificates in the server certificate file should be first the server certificate itself (contents of <code>rancher.yourdomain.com.pem</code>), followed by intermediate CA certificate(s) (contents of <code>intermediate.pem</code>).</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">-----BEGIN CERTIFICATE-----</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">%YOUR_CERTIFICATE%</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">-----END CERTIFICATE-----</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">-----BEGIN CERTIFICATE-----</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">%YOUR_INTERMEDIATE_CERTIFICATE%</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">-----END CERTIFICATE-----</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>If you still get errors during verification, you can retrieve the subject and the issuer of the server certificate using the following command:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">openssl x509 -noout -subject -issuer -in rancher.yourdomain.com.pem</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">subject= /C=GB/ST=England/O=Alice Ltd/CN=rancher.yourdomain.com</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">issuer= /C=GB/ST=England/O=Alice Ltd/CN=Alice Intermediate CA</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="how-do-i-check-common-name-and-subject-alternative-names-in-my-server-certificate">How do I check <code>Common Name</code> and <code>Subject Alternative Names</code> in my server certificate?<a href="#how-do-i-check-common-name-and-subject-alternative-names-in-my-server-certificate" class="hash-link" aria-label="Direct link to how-do-i-check-common-name-and-subject-alternative-names-in-my-server-certificate" title="Direct link to how-do-i-check-common-name-and-subject-alternative-names-in-my-server-certificate"></a></h3><p>Although technically an entry in <code>Subject Alternative Names</code> is required, having the hostname in both <code>Common Name</code> and as entry in <code>Subject Alternative Names</code> gives you maximum compatibility with older browser/applications.</p><p>Check <code>Common Name</code>:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">openssl x509 -noout -subject -in cert.pem</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">subject= /CN=rancher.my.org</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Check <code>Subject Alternative Names</code>:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">openssl x509 -noout -in cert.pem -text | grep DNS</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> DNS:rancher.my.org</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="why-does-it-take-5-minutes-for-a-pod-to-be-rescheduled-when-a-node-has-failed">Why does it take 5+ minutes for a pod to be rescheduled when a node has failed?<a href="#why-does-it-take-5-minutes-for-a-pod-to-be-rescheduled-when-a-node-has-failed" class="hash-link" aria-label="Direct link to Why does it take 5+ minutes for a pod to be rescheduled when a node has failed?" title="Direct link to Why does it take 5+ minutes for a pod to be rescheduled when a node has failed?"></a></h3><p>This is due to a combination of the following default Kubernetes settings:</p><ul><li>kubelet<ul><li><code>node-status-update-frequency</code>: Specifies how often kubelet posts node status to master (default 10s)</li></ul></li><li>kube-controller-manager<ul><li><code>node-monitor-period</code>: The period for syncing NodeStatus in NodeController (default 5s)</li><li><code>node-monitor-grace-period</code>: Amount of time which we allow running Node to be unresponsive before marking it unhealthy (default 40s)</li><li><code>pod-eviction-timeout</code>: The grace period for deleting pods on failed nodes (default 5m0s)</li></ul></li></ul><p>See <a href="https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/" target="_blank" rel="noopener noreferrer">Kubernetes: kubelet</a> and <a href="https://kubernetes.io/docs/reference/command-line-tools-reference/kube-controller-manager/" target="_blank" rel="noopener noreferrer">Kubernetes: kube-controller-manager</a> for more information on these settings.</p><p>In Kubernetes v1.13, the <code>TaintBasedEvictions</code> feature is enabled by default. See <a href="https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/#taint-based-evictions" target="_blank" rel="noopener noreferrer">Kubernetes: Taint based Evictions</a> for more information.</p><ul><li>kube-apiserver (Kubernetes v1.13 and up)<ul><li><code>default-not-ready-toleration-seconds</code>: Indicates the tolerationSeconds of the toleration for notReady:NoExecute that is added by default to every pod that does not already have such a toleration.</li><li><code>default-unreachable-toleration-seconds</code>: Indicates the tolerationSeconds of the toleration for unreachable:NoExecute that is added by default to every pod that does not already have such a toleration.</li></ul></li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="can-i-use-keyboard-shortcuts-in-the-ui">Can I use keyboard shortcuts in the UI?<a href="#can-i-use-keyboard-shortcuts-in-the-ui" class="hash-link" aria-label="Direct link to Can I use keyboard shortcuts in the UI?" title="Direct link to Can I use keyboard shortcuts in the UI?"></a></h3><p>Yes, most parts of the UI can be reached using keyboard shortcuts. For an overview of the available shortcuts, press <code>?</code> anywhere in the UI.</p></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/docs/faq/technical-items.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>Edit this page</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">Last updated<!-- --> on <b><time datetime="2024-04-09T21:10:29.000Z">Apr 9, 2024</time></b></span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/faq/dockershim"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Dockershim FAQ</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/faq/security"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Security FAQ</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="#how-can-i-reset-the-administrator-password" class="table-of-contents__link toc-highlight">How can I reset the administrator password?</a></li><li><a href="#i-deleteddeactivated-the-last-admin-how-can-i-fix-it" class="table-of-contents__link toc-highlight">I deleted/deactivated the last admin, how can I fix it?</a></li><li><a href="#how-can-i-enable-debug-logging" class="table-of-contents__link toc-highlight">How can I enable debug logging?</a></li><li><a href="#my-clusterip-does-not-respond-to-ping" class="table-of-contents__link toc-highlight">My ClusterIP does not respond to ping</a></li><li><a href="#where-can-i-manage-node-templates" class="table-of-contents__link toc-highlight">Where can I manage Node Templates?</a></li><li><a href="#why-is-my-layer-4-load-balancer-in-pending-state" class="table-of-contents__link toc-highlight">Why is my Layer-4 Load Balancer in <code>Pending</code> state?</a></li><li><a href="#where-is-the-state-of-rancher-stored" class="table-of-contents__link toc-highlight">Where is the state of Rancher stored?</a></li><li><a href="#how-are-the-supported-docker-versions-determined" class="table-of-contents__link toc-highlight">How are the supported Docker versions determined?</a></li><li><a href="#how-can-i-access-nodes-created-by-rancher" class="table-of-contents__link toc-highlight">How can I access nodes created by Rancher?</a></li><li><a href="#how-can-i-automate-task-x-in-rancher" class="table-of-contents__link toc-highlight">How can I automate task X in Rancher?</a></li><li><a href="#the-ip-address-of-a-node-changed-how-can-i-recover" class="table-of-contents__link toc-highlight">The IP address of a node changed, how can I recover?</a></li><li><a href="#how-can-i-add-more-argumentsbindsenvironment-variables-to-kubernetes-components-in-a-rancher-launched-kubernetes-cluster" class="table-of-contents__link toc-highlight">How can I add more arguments/binds/environment variables to Kubernetes components in a Rancher Launched Kubernetes cluster?</a></li><li><a href="#how-do-i-check-if-my-certificate-chain-is-valid" class="table-of-contents__link toc-highlight">How do I check if my certificate chain is valid?</a></li><li><a href="#how-do-i-check-common-name-and-subject-alternative-names-in-my-server-certificate" class="table-of-contents__link toc-highlight">How do I check <code>Common Name</code> and <code>Subject Alternative Names</code> in my server certificate?</a></li><li><a href="#why-does-it-take-5-minutes-for-a-pod-to-be-rescheduled-when-a-node-has-failed" class="table-of-contents__link toc-highlight">Why does it take 5+ minutes for a pod to be rescheduled when a node has failed?</a></li><li><a href="#can-i-use-keyboard-shortcuts-in-the-ui" class="table-of-contents__link toc-highlight">Can I use keyboard shortcuts in the UI?</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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