How to solve problem with ssh authentication?

Question

I am trying to login into remote server without password using ssh but I am get the error:

Permission denied (publickey)

To copy .pub key to the server, I had:

PasswordAuthentication = yes (in the sshd_config file).

After I copied the .pub key, the i disabled the password in the ssh_config I had:

PasswordAuthentication = no

Now when I tried to ssh:

ssh 'server@192.168.xx.x'

I was getting the error:

Permission denied (publickey)

How can I solve the problem?

I have changed the authorized_keys permission, the .ssh/ permission and so on, but the problem persist. I have even used the ssh-agent $SHELL && ssh-add command.

Answer 1

I always use below step to create new ssh connection to remote machines:

1. Generate a new ssh key pair (just press enter until back to shell):

   localhost$ ssh-keygen -t rsa
   localhost$ cp .ssh/id_rsa.pub .ssh/authorized_keys
   

2. Copying the newly created public key to remote machine:

   localhost$ ssh-copy-id username@myIP
   username@myIP password:
   

3. Now try to login (there will be no password prompt):

   ssh username@myIP
   

Notes: I never edit ssh_config and sshd_config so maybe you can restore them back to the original state unless they already connected.