key_auth

If you want to use pubkey authentication, then you need to call key_auth.

 user "bob";
 private_key "/home/bob/.ssh/id_rsa"; # passphrase-less key
 public_key "/home/bob/.ssh/id_rsa.pub";

 key_auth;


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group "servers", "server_big" => { user => 'my_user', private_key => '/home/user/key.pem', key_auth => 1 };