After you use the Server app to set up OS X Server, you can take steps to enhance its security, accessibility, and usefulness.
Enhance the security, accessibility, and usefulness of your new server by following the tutorials in the Server app (Help > Server Tutorials).
Install available updates to OS X Server by using Software Update.
So users can authenticate for services, do one or both of the following:
Create user accounts on your server.
Connect to a network account server (also called a directory server) in your organization to let people use their existing accounts.
Turn on and customize services you want to provide, view server information and change it as needed, and track server alerts.
Allow access to services over the Internet by doing either or both of the following:
To make specific services publicly available on the Internet, configure port mapping on your AirPort device or other router.
To let users securely access all services over the Internet without making services publicly available, use VPN service.
Verify that your service access is functioning as expected. See View Internet reachability details.
Protect the information on your Mac by using a strong administrator password, securing the server when it’s idle, reducing the use of administrator accounts, and logging out when you finish using an administrator account. For instructions, search Mac Help for “Protect the information on your Mac.”