I created a cluster with 2 vm's. I followed instructions listed below.This is on RHEL 7.3 This is after kubernetes was installed using yum. The version of kubernetes is 1.7

commands on Master01-only

sysctl net.bridge.bridge-nf-call-iptables=1
sysctl net.bridge.bridge-nf-call-ip6tables=1
systemctl stop firewall
systemctl disable firewall
systemctl status firewall
systemctl start iptables.service
systemctl enable iptables.service
iptables -F
service kubelet restart
kubeadm init --pod-network-cidr 10.244.0.0/16

make sure you copy the kubeadm join command that gets displayes after cluster creation"

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl get nodes
kubectl describe nodes
cd ~/Downloads
kubectl apply -f flannel.yml
kubectl apply -f flannel-rbac.yml
kubectl create -f rolebinding.yml
kubectl create -f role.yml

commands on node-only

sysctl net.bridge.bridge-nf-call-iptables=1
sysctl net.bridge.bridge-nf-call-ip6tables=1
systemctl stop firewall
systemctl disable firewall
systemctl status firewall
systemctl start iptables.service
systemctl enable iptables.service
iptables -F
kubeadm join --token xxxxxx.xxxxxxxxxxxxxx x.x.x.x:6443

The issue i am having is that the dns is not working as expected. Have been struggling with this for past two days. Would appreciate any help.