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ssh root@server 'Permission denied (publickey)'

Posted September 21, 2017 9.1k views
SecurityUbuntu 16.04

SSH authentication works and happens automatically when I log into my server with Putty. However, when I run ssh root@server or ssh new_user@server, after following the tutorial on adding a new user and giving it root permissions, I get ‘permission denied (publickey)’. Should I worry about this, are either of my users secure?

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2 answers
678JZY September 22, 2017

i have the same question how to reslove it

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  • asllc.james October 8, 2017

    After a long time away from my droplet, I had this same problem.

    I simply had to remember that I use “ssh -i <key-file> user@server”
    Where the key file is the the one you generated during the tutorial.

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pixelgrinch September 22, 2017

Assuming you created the .ssh folder and public key file within your new user, make sure you are referencing the proper private key when you ssh login.

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  • tocoolfourskool September 22, 2017

    How would i reference a particular key?

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    • asllc.james October 8, 2017

      Generally, when you setup your key pair (public and private keys) they are placed in the ~/.ssh directory.

      To reference a particular key, use the -i (identity) command line option.

      For example:
      ssh -i .ssh/my-user-key my-user@my-host-ip

      Where my-user-key is the file name for the private key you generated for your user on your local machine.

      my-user is the username on your droplet

      my-host-ip is the ip address of the host you’re ssh'ing to.

      Search for “how to log in with ssh” in this forum.

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