A global organization keeps personnel application servers that are local to each country. Which of the following hardening techniques should the organization use to restrict access to only sites that are in the same country?

A global organization keeps personnel application servers that are local to each country. Which of the following hardening techniques should the organization use to restrict access to only sites that are in the same country?

• A. Encrypt all data transmissions
• B. Configure a firewall
• C. Change default ports
• D. Implement VPN access

Answer: (B)

Configuring a firewall is an effective hardening technique for restricting access to application servers based on geographical location. Firewalls can be set up to allow or deny traffic based on various criteria, including the source IP addresses. By applying country-based IP restrictions, the organization can ensure that only traffic originating from within the same country is allowed to access the personnel application servers. This approach enhances security by preventing unauthorized access from external locations, which is particularly important for sensitive personnel data. Furthermore, while encrypting data transmissions, changing default ports, and implementing VPN access are valuable security measures, they do not specifically address the requirement of limiting access based on geographical origin. Encryption secures data in transit, but does not control who can connect to the server; changing default ports may help obscure services but does not inherently restrict access; and while VPN access can provide a secure means for remote users to connect, it does not by itself impose geographical restrictions on access. Therefore, a firewall is the most direct and effective method for achieving this specific security objective.

Configuring a firewall is an effective hardening technique for restricting access to application servers based on geographical location. Firewalls can be set up to allow or deny traffic based on various criteria, including the source IP addresses. By applying country-based IP restrictions, the organization can ensure that only traffic originating from within the same country is allowed to access the personnel application servers. This approach enhances security by preventing unauthorized access from external locations, which is particularly important for sensitive personnel data.

Furthermore, while encrypting data transmissions, changing default ports, and implementing VPN access are valuable security measures, they do not specifically address the requirement of limiting access based on geographical origin. Encryption secures data in transit, but does not control who can connect to the server; changing default ports may help obscure services but does not inherently restrict access; and while VPN access can provide a secure means for remote users to connect, it does not by itself impose geographical restrictions on access. Therefore, a firewall is the most direct and effective method for achieving this specific security objective.