Highlights
In this assessment, you are required to secure a network using security countermeasures such as firewalls and principles of system hardening.

Task
You are required to submit a report that includes the following:
1. Configure the firewall using iptables to ensure security and functionality is maintained.
2. Harden the SSH server.
3. Propose an improved network design to establish a DMZ. Justify your new design. You should provide a fully annotated network diagram with full description.
4. Implement the internal firewall using pfSense/OPNsense.
Notes
Any assumptions must be explicitly stated.
For tasks 1, 2, and 4, you must provide detailed step-by-step screenshots as evidence.
Report Template
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