ruby on rails ssh connection without giving a password

Question

Currently i'm doing an ssh connection in my code like this:

Net::SSH.start( @HOST, @USER, :password => @PASS ) do|ssh|
   @result = ssh.exec!("ls")
   end

Now I need to do an SSH connection without giving any password. I was not able to find the exact format to start ssh connection without giving any password.

I have added the SSH keys in authorized key list of the HOST. I remember seeing the below code somewhere on the net when i browsed for ssh without password.

Net::SSH.start( @HOST, @USER) do|ssh|
       @result = ssh.exec!("ls")
       end

Please correct me if iam wrong

Zach Smith · Accepted Answer · 2017-08-10 09:39:03Z

2

You have to point to your private key, not public key:

@USER = "me" 
@KEYS = ["my private key here"] 
@HOST = hostname  
Net::SSH.start( @HOST, @USER, :key_data=>@KEYS, :keys_only=>TRUE ) do|ssh|
  @result = ssh.exec!("ls")                 
end

and now it does not take the password anymore.

edited Aug 10, 2017 at 9:39

Zach Smith

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answered Aug 17, 2012 at 21:00

user1455116

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1 Comment

Zach Smith Over a year ago

Thanks! Question: do you know how to automatically accept the rsa host key? (the first time you log onto linux you have to type 'yes' to accept the host key that is exchanged)

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