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Thorsten Staerk
Asked: 2014-03-22 04:27:27 +0800 CST

establish passwordless login without asking the user [duplicate]

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On Linux when using dsa keys I establish passwordless login with the command

ssh-copy-id -i .ssh/id_dsa.pub [email protected]

This prompts the user for user's password on target.host. My script knows the password and the user shall not be bothered, how can I do this?

linux

1 Answers

  1. Just generate a pair of keys and provide it with your script. This would be the preshared key to upload a real key.

    EDIT: Generate a separate keys for keydeployment: (deploy, deploy.pub), ship them with your script. This mean that from machine with script (so with those keys) you just can login without a password: 

    ssh -i ./deploy.pub [email protected]

    Then use this key to deploy user key on the target:

    cat deploy.pub .ssh/id_dsa.pub > both.pub
ssh-copy-id -i ./both.pub [email protected]
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