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For CentOs I am trying to configure a ssh key but it denies the approval. I tried this from the following link:

For more details I raised the same question on server fault: "ssh-keygen problem"

Please let me know any alternatives.

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"Denies the approval"? – Ignacio Vazquez-Abrams Nov 26 '10 at 5:16
Yes i meant it would prompt for the password inspite the key is set – Rajeev Nov 26 '10 at 5:18

If it is asking for a "password" your SSH server isn't configured correctly.

If it is asking for a "passphrase" then this is working as intended, if you don't want to have to enter a passphrase while using keys then do not enter a passphrase when creating the key.

Not using a passphrase is a security issue, you should think about your servers situation (importance of what it does, who may be able to access it, etc) before proceeding without a passphrase.

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