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Public Key Authentication in Serv-U

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Created by Dhalia Turiaga, last modified by Nigel on May 01, 2017

Views: 1,410 Votes: 0 Revisions: 3


Serv-U MFT Server supports the powerful option to authenticate SFTP users using Public Key Authentication. This method of authentication allows users to connect using only a private key file along with a public key stored in Serv-U, and eliminates the need to remember a username and a password when logging in.


  1. Open the user account which will authenticate via private key.
  2. In the Limits & Settings tab, select the "Password" limit type.
  3. Set the "SSH Authentication Type" to "Public Key Only"
  4. In the User Information tab, provide the path to the user's public key.
  5. Further options are also available.

    • If you want to require users to authenticate using both Password and Key options, leave the SSH Authentication Type set to "Password and Public Key" to require both.

    • To require only one option choose "Password or Public Key".



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