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1b- yum update and make sure you have 2x user account
1c- For multi-interface: kubeadm init --apiserver-advertise-address 192.168.56.101
http://www.tothenew.com/blog/how-to-install-kubernetes-on-centos/
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http://www.tothenew.com/blog/how-to-install-kubernetes-on-centos/
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