title: Invalid x509 certificate for kubernetes master
body: <p>I am trying reach my k8s master from my workstation. I can access the master from the LAN fine but not from my workstation. The error message is:</p>
  
  <pre><code>% kubectl --context=employee-context get pods
  Unable to connect to the server: x509: certificate is valid for 10.96.0.1, 10.161.233.80, not 114.215.201.87
  </code></pre>
  
  <p>How can I do to add 114.215.201.87 to the certificate? Do I need to remove my old cluster ca.crt, recreate it, restart whole cluster and then resign client certificate? I have deployed my cluster with kubeadm and I am not sure how to do these steps manually.</p>