Reference no: EM132696041

CTS240 Advanced Network Defense - Anne Arundel Community College

Firewalling

Introduction

This lab focuses on the configuration and use of the building firewalling software on Ubuntu Linux. Blocking malicious traffic is a stable task for firewall administrators. This lab gives you experience on rule creation and auditing of rulebase enforcement. Working in groups outside of class is acceptable for working through the hurdles and roadblocks that you may run into during the lab work.

Lab Objectives

• Configure command line firewall in Linux
• Improve firewall rulebase to block connections to specific websites
• Test, confirm and observe packet forwarding and drops in Wireshark
Specs/Software Used

• 1 Linux VM
• UFW Firewall (installed on Linux)
• Wireshark

Tasks

1) setup the lab environment (1 ubuntu VM, Wireshark, Firefox and 1 or more terminals)

2) Select 3 target sites (such as facebook, espn and barnesandnoble)

3) Confirm successful connections to each site

4) Turn on UFW firewall and create rules to block connects to the 3 sites you select

5) Test and confirm that the connections are blocked.

6) Capture the successful and failed attempts and analyze the Wireshark capture to show, specifically, the successful and unsuccessful connection attempts and what you can and cannot see from the capture.

7) Write-up your lab report to meet all standards for formal lab reports for this course.

Attachment:- Firewall Design.rar