@adlerspj Thanks for your reply.
I set up microk8s completely new, but i have still the same issue.
~$ kubectl exec -i -t dnsutils -- nslookup google.com
Server: 10.152.183.10
Address: 10.152.183.10#53
Non-authoritative answer:
Name: google.com
Address: 216.58.212.142
~$ kubectl exec -i -t dnsutils2 -- nslookup google.com
;; connection timed out; no servers could be reached
command terminated with exit code 1
~$ kubectl get pods -n kube-system -l k8s-app=kube-dns -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
coredns-7f9c69c78c-zkzw2 1/1 Running 1 (90m ago) 4d20h 10.1.133.138 node01 <none> <none>
~$ kubectl get all -o wide | grep dns
pod/dnsutils 1/1 Running 0 5m59s 10.1.133.141 node01 <none> <none>
pod/dnsutils2 1/1 Running 0 4m51s 10.1.222.77 node02 <none> <none>
Please help