How to disable SSH key on Centos 7?

Question

CentOS

I purchased a Yandex cloud, installed Centos, when creating an image, you must force the key to be set, generated it using Putty Key Generator.
I entered the server with a key, how do you turn off key authentication and use a password?

Answer 1

Delete the key
or
write in the openssh config for this user the authorization methods are only password and keyboard-interactive

Answer 2

Read the manual on the sshd configuration file https://linux.die.net/man/5/ssh_config