Troubleshooting Kubectl Error The Connection To The Server X.X.X.X 6443 Was Refused - Did You Specify The Right Host or Port - The Geek Diary
Troubleshooting Kubectl Error The Connection To The Server X.X.X.X 6443 Was Refused - Did You Specify The Right Host or Port - The Geek Diary
Troubleshooting Kubectl Error The Connection To The Server X.X.X.X 6443 Was Refused - Did You Specify The Right Host or Port - The Geek Diary
The connection to the server x.x.x.x:6443 was refused - did you specify the right host or port?
2. Current user must have Kubernetes cluster configuration environment variable (Details of
how to are listed under section Preparing to Use Kubernetes as a Regular User), e.g.:
If TCP port 6443 is not available, check firewall/iptables Rules matching requirements:
$ firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: eno1
sources:
services: ssh dhcpv6-client
ports: 10250/tcp 8472/udp 6443/tcp
protocols:
masquerade: yes
forward-ports:
source-ports:
icmp-blocks:
rich rules:
6. Try restarting Kubernetes cluster which will also do some basic checks:
$ kubeadm-setup.sh restart
Restarting containers now ...
Detected node is master ...
Checking if env is ready ...
Checking whether docker can pull busybox image ...
Checking access to ca-docker-registry.us.oracle.com/kubernetes_developer ...
Trying to pull repository ca-docker-registry.us.oracle.com/kubernetes_developer/pause-amd64 ...
3.0: Pulling from ca-docker-registry.us.oracle.com/kubernetes_developer/pause-amd64
Digest: sha256:f037e4f1990d76b0711e00035d0aeb0869ff9c4ece517e0a90af4ea3f601760e
Status: Image is up to date for ca-docker-registry.us.oracle.com/kubernetes_developer/pause-amd64:3.0
Checking firewalld settings ...
Checking iptables default rule ...
Checking br_netfilter module ...
Checking sysctl variables ...
Restarting kubelet ...
Waiting for node to restart ...
....
Restarting pod kube-flannel-ds-6htqw
pod "kube-flannel-ds-6htqw" deleted
Restarting pod kube-flannel-ds-fmjjw
pod "kube-flannel-ds-fmjjw" deleted
Restarting pod kube-flannel-ds-j982j
pod "kube-flannel-ds-j982j" deleted
Master node restarted. Complete synchronization between nodes may take a few minutes.