Which of the following steps should be prioritized when preparing to establish a secured communication to a database server on port 1433, which is hosted on a remote machine?
Change the default port used by the server from 1433 to a non-standard port.
Enable Secure Shell (SSH) access to the database server.
Enable IPv6 on the server hosting the database.
Establish a Virtual Private Network (VPN) connection.
Securing communication to a database server involves ensuring data transmitted over the network is encrypted. Using a VPN establishes a secure tunnel between the client and the server, thereby encrypting all data in transit, making it a priority for secure database communications. While enabling IPv6 might improve network structure and future-proof the system, it doesn't directly secure the data transmitted to the database server. Changing the server's default port can obscure the service from some automated attacks but does nothing to encrypt or otherwise directly protect data in transit. Enabling SSH is not standard for securing communications to database servers as it is more commonly associated with secure shell access to Unix-like systems.
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