Why doesn't the centos root password change?

Question

linux

Tell me how to change the password on the root from under another user?
tried sudo passwd root

sudo passwd root
Changing password for user root.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.

but I still can't login.
Tell me what I'm doing wrong

Answer 1

see /etc/ssh/sshd_config PermitRootLogin