Note that from the options given, the best option or best practice for hardening a server are:
Server hardening is the process of improving the security of a server by taking steps to protect it from potential threats.
This can include installing security software, applying security patches and updates, disabling unnecessary services and software, and implementing security measures such as firewalls and authentication systems.
Note that the purpose of server hardening is to reduce the risk of unauthorized access to the server and protect it from potential attacks or vulnerabilities. By following best practices for server hardening, businesses and organizations can ensure that their servers are secure and protected from potential threats.
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