connection timed out; no servers could be reached when connect CoreDNS server

Question

When I using dig command to test the CoreDNS server,it shows: connection timed out; no servers could be reached:

[root@ops001 ~]# /opt/k8s/bin/kubec         


        

Answer 1

I finally find some server's kube-proxy not start,and the route foward rule not refresh,using this command to start kube-proxy fix this problem:

systemctl start kube-proxy