How can i fix the RKE Problem in ./rke_linux-amd64 up

1

[My Environment]
Centos 7.3
docker 1.13.1

When i Run “./rke_linux-amd64 up” , It will occur allow error: (PS: Anyone can help me to fix ?)

INFO[0000] Building Kubernetes cluster
INFO[0000] [dialer] Setup tunnel for host [172.31.169.50]
WARN[0000] Failed to set up SSH tunneling for host [172.31.169.50]: Can’t retrieve Docker Info: error during connect: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.24/info: Failed to dial ssh using address [172.31.169.50:22]: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
WARN[0000] Removing host [172.31.169.50] from node lists
FATA[0000] Cluster must have at least one etcd plane host

2

See steps described here: https://rancher.com/docs/rancher/v2.x/en/installation/troubleshooting-ha/ssh-tunneling/#failed-to-dial-to-var-run-docker-sock-ssh-rejected-administratively-prohibited-open-failed