Homework Help is Here – Start Your Trial Now!
Engineering
Computer Science
What are the major functions of a firewall?

What are the major functions of a firewall?

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
See similar textbooks
icon
Related questions
Question
**Major Functions of a Firewall:** Firewalls play a crucial role in protecting computer networks from unauthorized access and cyber threats. Their main functions include: 1. **Packet Filtering:** Firewalls examine packets of data against a set of rules. Only packets that meet the criteria are allowed to pass through to the network. 2. **Proxy Service:** Firewalls can serve as intermediaries between end users and the internet, processing requests and filtering content before it reaches the network. 3. **Stateful Inspection:** This function allows the firewall to monitor active connections and determine whether incoming packets are part of an existing conversation or if they are attempting to initiate a new connection. 4. **Network Address Translation (NAT):** Firewalls can alter network addresses in data packets to mask the origin or destination, adding an extra layer of privacy. 5. **Logging and Monitoring:** Firewalls track and log activities, which is essential for diagnosing problems and understanding network behavior in the event of a breach. --- **Expectations for Packet Filtering Software Development:** 1. **Accuracy and Efficiency:** Your software should accurately allow or block packets according to predetermined rules while maintaining high processing speeds to minimize delays. 2. **Security:** Implement robust security measures to ensure the software is resistant to attacks and cannot be easily bypassed. 3. **Flexibility:** Develop the software to support a wide range of protocols and customizable rules to adapt to different network configurations and security policies. 4. **User-Friendly Interface:** Design an intuitive interface for administrators to set rules and monitor traffic with minimal training. 5. **Scalability:** Ensure the software can handle increasing volumes of data as network demands grow over time. These competencies are critical for successfully contributing to network security efforts through packet filtering software.
Transcribed Image Text:**Major Functions of a Firewall:** Firewalls play a crucial role in protecting computer networks from unauthorized access and cyber threats. Their main functions include: 1. **Packet Filtering:** Firewalls examine packets of data against a set of rules. Only packets that meet the criteria are allowed to pass through to the network. 2. **Proxy Service:** Firewalls can serve as intermediaries between end users and the internet, processing requests and filtering content before it reaches the network. 3. **Stateful Inspection:** This function allows the firewall to monitor active connections and determine whether incoming packets are part of an existing conversation or if they are attempting to initiate a new connection. 4. **Network Address Translation (NAT):** Firewalls can alter network addresses in data packets to mask the origin or destination, adding an extra layer of privacy. 5. **Logging and Monitoring:** Firewalls track and log activities, which is essential for diagnosing problems and understanding network behavior in the event of a breach. --- **Expectations for Packet Filtering Software Development:** 1. **Accuracy and Efficiency:** Your software should accurately allow or block packets according to predetermined rules while maintaining high processing speeds to minimize delays. 2. **Security:** Implement robust security measures to ensure the software is resistant to attacks and cannot be easily bypassed. 3. **Flexibility:** Develop the software to support a wide range of protocols and customizable rules to adapt to different network configurations and security policies. 4. **User-Friendly Interface:** Design an intuitive interface for administrators to set rules and monitor traffic with minimal training. 5. **Scalability:** Ensure the software can handle increasing volumes of data as network demands grow over time. These competencies are critical for successfully contributing to network security efforts through packet filtering software.
Expert Solution
Step 1

As per our company guidelines, only one question will be answered. So, please repost the remaining questions separately.

Firewall is a network security device which provides security to the network. It allows only authorised data into the network by blocking unauthorised data. There are mainly three types of firewalls, that are: Hardware based firewall, software based firewall and cloud firewalls.

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Types of Security Technology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
SEE MORE TEXTBOOKS