/etc/ssl/nginx/ directory. Use your SCP client or other secure file transfer tools.
nginx binary version to ensure that you have NGINX Plus installed correctly:
In order to upgrade from the previous version of nginx-plus, run apt-get update and apt-get install nginx-plus
Default repository path is configured to point to the latest NGINX Plus release with an ability to downgrade to one of the previous releases issued within 2 years. If you want to stick to the particular release, you should modify repository URL in the /etc/apt/sources.list.d/nginx-plus.list file in a following way:
where xx is a release number.