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Which of the following services does a firewall do that is regarded as its most important? What are the best practices for employing packet-filtering software, and what are the criteria for doing so?

Which of the following services does a firewall do that is regarded as its most important? What are the best practices for employing packet-filtering software, and what are the criteria for doing so?

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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**Firewall Services and Packet-Filtering Best Practices** 1. **Primary Firewall Service:** - A firewall's most important service is controlling and monitoring incoming and outgoing network traffic based on predetermined security rules to protect against unauthorized access. 2. **Best Practices for Packet-Filtering Software:** - Implement strict rules that dictate which packets can pass through, based on IP addresses, protocols, and ports. - Regularly update and audit rules to adapt to new security threats and ensure that obsolete or insecure rules are removed. - Use a layered security approach by combining packet filtering with other security measures like intrusion detection systems. - Log all activities to monitor for suspicious activities and perform timely analyses. - Prioritize the principle of least privilege by only allowing essential packets to pass through.
Transcribed Image Text:**Firewall Services and Packet-Filtering Best Practices** 1. **Primary Firewall Service:** - A firewall's most important service is controlling and monitoring incoming and outgoing network traffic based on predetermined security rules to protect against unauthorized access. 2. **Best Practices for Packet-Filtering Software:** - Implement strict rules that dictate which packets can pass through, based on IP addresses, protocols, and ports. - Regularly update and audit rules to adapt to new security threats and ensure that obsolete or insecure rules are removed. - Use a layered security approach by combining packet filtering with other security measures like intrusion detection systems. - Log all activities to monitor for suspicious activities and perform timely analyses. - Prioritize the principle of least privilege by only allowing essential packets to pass through.
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