Name resolution error on kubernetes cluster?

Hi there,

I have problems when services should get internet access. I would like to get the ArgoCD get running in my cluster. I get the graphical interface of the programm and everything started. The only thing that doesn’t work is the connection to the Git repo. I get the error:

dial tcp: lookup github.com on 10.96.0.10:53: server misbehaving

I’ve been working with kubernetes for a short time. I set up my own cluster on a virtualized environment (VirtualBox). Each VM has two network adapters: one for NAT and one Host-Only for communication between the individual nodes. I created the cluster using kubeadm init. So far everything works.

I think it’s because I don’t have a load balancer in the cluster??? Or is it the DNS server? A completely wrong IP is assigned. Why??? Where does this IP come from? How can I solve this problem? Unfortunately I’m at the end of my knowledge and googling. I hope someone can help me :slight_smile: