AWS's centos is slightly different in version.
When using the 6th generation, the default login user is root
Using the 7th generation system, the default login user is centos
Otherwise, you will not be able to log in
AWS's centos is slightly different in version.
When using the 6th generation, the default login user is root
Using the 7th generation system, the default login user is centos
Otherwise, you will not be able to log in