SSH Passwordless Login Using SSH Keygen in 5 Easy Steps

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Ravi Saive

I am Ravi Saive, creator of TecMint. A Computer Geek and Linux Guru who loves to share tricks and tips on Internet. Most Of My Servers runs on Open Source Platform called Linux. Follow Me: Twitter, Facebook and Google+

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242 Responses

  1. Tiny says:

    If you are getting prompted for SSH password then you missed a step :)

    Make sure that you save the id_rsa.pub (the public key) into the keys folder of the user that you wish to SSH into.

    So for example, if you want to SSH as root, then you need the key stored in /root/.ssh/authorized_keys.

    If you want to ssh as ‘yourname‘ then it will be /home/yourname/.ssh/authorized_keys.

    To set this up, you first need to SSH into the destination with username/password combination. Now you’re in, you can copy the ssh public key into the right location. This is why you see “enter your password here” above.

  2. resh says:

    Really awesome article, thank you very much.

  3. BKT says:

    what is the password used in ENTER YOUR PASSWORD section

  4. jivnesh says:

    Thanks. It works in one go, without any error.

  5. RF says:

    I’ve followed your very useful and detailed tutorial line for line but still get prompted for a password each time I ssh into the remote host. Are there any settings in ssh_config or sshd_config that need updating following this?

    • Ali Ahmed says:

      same issue here using Redhat 6.9

    • Chris Pesoa says:

      @RF and @AliAhmed

      Try this:

      On the machine where the ‘authorized_keys‘ file resides, set proper permissions for the directory .ssh and the file.

      # chmod 700 ~/.ssh/
      # chmod 600 ~/.ssh/authorized_keys
      

      Then, to test:

      In the SSHD config file: */etc/ssh/sshd_config*

      Disable PasswordAuthentication directive
      PasswordAuthentication no
      

      Save, reload/restart sshd deamon.

      This should solve the prompting password field.

      Good luck.

  6. DBA Canada says:

    The best and clear explanation ever. Thanks for doing this and keep it up with this excellent articles

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