Establish SSH trust relationship between clusters

Purpose requirements

A set of 10 hosts in the cluster, establish an SSH trust relationship, so that all the hosts in the cluster can not lose passwords to each other access.

Workaround

1. Generate the private key in Server1

Ssh-keygen
Ssh-copy-id [email protected]

SCP-RP Id_rsa [Email protected]:root/.ssh/

2. View the private key and Authorized_keys on the 192.168.1.2

1 root root 409 Jul 5 20:35 Authorized_keys
1 root root 1675 Jul 5 16:04 Id_rsa
1 root root 2376 Jul 5 20:49 known_hosts

3. Copy the private key and Authorized_keys to all trusted nodes at the same time, solve the problem
SCP-RP Authorized_keys id_rsa [email protected]:/root/.ssh/
SCP-RP Authorized_keys id_rsa [email protected]:/root/.ssh/
...............

Establish SSH trust relationship between clusters