k8s master The connection to the server 192.168.43.12:6443 was refused did you specify the right host or port?

######需要############执行############ kubeadm init 

4、部署k8s node 且加入master
########192.168.254.142 node3 192.168.254.139 node2
###D:\vm2\centOS 7 64 1801-k8s\k8s_centos.vmx
kube-let=>直接安装在宿主机
\kube-proxy
\docker
\flannel=>跨主机的容器网络通信

#向集群添加节点
##########master:192.168.254.140
####kubeadm join 192.168.254.134:6443 --token vtyk9m.g4afak37myq3rsdi --discovery-token-ca-cert-hash sha256:19246ce11ba3fc633fe0b21f2f8aaaebd7df9103ae47138dc0dd615f61a32d99
kubeadm join 192.168.254.140:6443 --token vtyk9m.g4afak37myq3rsdi --discovery-token-ca-cert-hash sha256:19246ce11ba3fc633fe0b21f2f8aaaebd7df9103ae47138dc0dd615f61a32d99

kubeadm join 192.168.254.140:6443 --token vlxjhl.qjvdctaj15idzq4g --discovery-token-ca-cert-hash sha256:404439be41e8c51f9e8c495bb4e58d80ecbde518463a70bd30a7e4522b48b2e6 --ignore-preflight-errors=all

vlxjhl.qjvdctaj15idzq4g 404439be41e8c51f9e8c495bb4e58d80ecbde518463a70bd30a7e4522b48b2e6

#####查看token
kubeadm token list
#####生成token
kubeadm create token
#####生成长期token
kubeadm token create --ttl 0

#### 8.k8s连载--重新生成k8s token(kubeadm join报错及解决)
https://www.cnblogs.com/ITPower/p/12866713.html

#查看节点 node
kubectl get nodes

#查看节点 node
####status NotReady 需要安装容器 网络
###################参考 3、部署容器 网络插件
###########日志####journalctl -xefu kubelet####

kubectl get pods --all-namespaces
kubectl get pods -n kube-system
kubectl get pods -n kube-system -o wide |grep node

####组件状态信息
kubectl get cs

####查询名称空间
kubectl get ns