Putty error: No supported authentication methods available (server sent: publickey)

June 17, 2017 123 views
Nginx LEMP Ubuntu 16.04 Ubuntu

I am trying to setup a server for my wordpress site. I was going through this tutorial (https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-16-04) to setup ssh keys.
After step five when it says to try logging in with the ssh keys with the newly created user putty returns back with a error saying: "No supported authentication methods available (server sent: publickey)"
I put the public key in the authorized_keys file and everything the tutorial said but it still returns that error. If I try logging in to root with the same private key it works fine. It just shows that error when I try logging in with the new user.

Any help would be appreciated.

1 comment
  • I would also like to mention, I made the keys with Puttygen and I added the public key to digitalocean. I used the key when creating the droplet.

1 Answer

@thelunchbawx

The public key generated by puttygen cannot be used directly on Ubuntu you need to change its format as mentioned here

Hope this helps

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