现象：

# kubectl get nodes

unable to connect to the server 3360 x 5093360 certificate has expired或is not yet valid解决方案的unable to connect to the server 3360 x 5093360 certificate has expired:

删除Secret k3s-serving

kube CTL-insecure-skip-TLS-verify-n kube-system delete secrets k3s-serving

从系统中删除dynamic-cert.json文件

RM-f/var/lib/rancher/k 3s/server/TL

重新启动K3s进程

Systemctl restart k3s

与Systemctl restart k3s-agent一起检查证书过期时间

命令

for I in ` ls/var/lib/rancher/k3s/server/TLS/*。CRT `；DO ECHO $ I；OpenSSL x509-enddate-noout-in $ I；唐(消歧义)