Everyone knows the power of SSH. SSH’s usefulness blows major security issues out of the water, when you authenticate with your server from your local computer using public key authentication.
I mess up a lot with PC, and one day, whatever the reasons were, I couldn’t seamlessly log into my server, and had to enter password. I don’t hate passwords, but just typing them in all the time is boring. I’ve been enduring this nightmare for a while, but went reading what the problem is. Figured the solution is simple:
First: Reset your server pairing information on your local PC:
ssh-keygen -R SERVER_IP_ADDRESS
Then: Generate new ssh id_rsa on your local PC:
local~$ ssh-keygen # will generate this output Generating public/private rsa key pair. Enter file in which to save the key (/Users/localuser/.ssh/id_rsa):
Next: Copy generated key to server which will be used for authentication. I used ssh-copy-id for the first time, and the experience was amazing:
ssh-copy-id demo@SERVER_IP_ADDRESS
Now, ssh into your IP address again, and it shouldn’t ask you for password to your user account.
NOTE: DO NOT ALLOW login to your Sever via root!
