Kubernetes - You must be logged in to the server (Unauthorized)

Reason

• Certificates have been expired.

Solution

• Run: kubeadm init phase certs all --apiserver-cert-extra-sans=ALL_IPS_TO_BE_ACCEPTED_BY_THE_CERT --apiserver-advertise-address=ADDRESS
• Run: cp /etc/kubernetes/admin.conf ~/.kube/config

OpenShift

oc login -u kubeadmin -p 'PASSWORD' https://api.crc.testing:6443