How to login with SSH on drop in DO?

Question

SSH

I added an SSH key from another developer to the droplet. Now I'm trying to log in with this key, but I can't get
Permission denied (publickey) in any way.
Key added, rights too. I seem to be entering correctly. What's wrong - I don't understand

Answer 1

It is sometimes mistakenly believed that SSH uses all the keys in a folder. SSH only uses the key called id_rsa by default. In order for it to use a different key, this must be explicitly specified to the run command.

Answer 2

I believe this is because SSH takes your own password for key authentication and not another developer's. Hence the denied access.