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Run ssh-keygen command on SYS1 to generate Public and Private
Key.Now add the content from id_rsa.pub created in SYS1 to all the
other nodes (SYS2 & SYS3) to respective location as below.Private file
(id_rsa) should have permission 600 and should be stored secure in
SYS1 alone.We can also change passphrase of private key by using
command ssh-keygen -p -f ~/.ssh/id_rsa.
http://girishg.net/ssh-password-less-authentication-setup-guide/

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Art of listening

  • 1. Run ssh-keygen command on SYS1 to generate Public and Private Key.Now add the content from id_rsa.pub created in SYS1 to all the other nodes (SYS2 & SYS3) to respective location as below.Private file (id_rsa) should have permission 600 and should be stored secure in SYS1 alone.We can also change passphrase of private key by using command ssh-keygen -p -f ~/.ssh/id_rsa. http://girishg.net/ssh-password-less-authentication-setup-guide/