A server that is secured uses the Secure Socket Layer (SSL) protocol to encrypt and decrypt data to protect it from unauthorized access.
Below are the four steps to secure a server:
Step 1: Secure the root and administrator users with a password
Step 2: Create new users who will manage the system
Step 3: Do not give remote access to administrator/default root accounts
Step 4: Configure firewall rules for remote access
Intermediate Cyber Security Interview Questions and Answers