As I was following this tutorial (https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-20-04), I created a new user account at step 2, including an account password. Then, I successfully added sudo privileges to this user account (step 3), set up the basic firewall and enables external access for my regular user (step 5).
So far, so good.
Now, when I externally login using ssh user@ipaddress, Ubuntu 20.04 asks for my passphrase, but it permits only the passphrase for my root user. Isn’t that strange? What if I add another user that is not me. He or she will have to know the passphrase for my root user account. That is not really save.
Please let me know what is good practice here.
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