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Security Features and Administrative Controls
Security is implemented through a layered approach, often called Defense-in-Depth.
| Device/System | Security Features (5+) | Administrative Controls |
|---|---|---|
| Edge Firewall (Palo Alto PA-850) | 1. Next-Generation Capabilities (Application awareness, not just ports). 2. Threat Prevention (IPS/Antivirus/Anti-Spyware). 3. SSL Decryption (Visibility into encrypted traffic). 4. VPN Gateway. 5. URL Filtering. | Role-based access control (RBAC), Centralized management via Panorama, Audit logging, $\text{SSH/HTTPS}$ access with $\text{MFA}$. |
| Authentication Server (Windows Server 2022) | 1. Group Policy Objects (GPOs) (Enforce workstation security). 2. Kerberos/NTLM (Secure authentication protocol). 3. Multi-Factor Authentication (MFA) integration. 4. Password Policy Enforcement. 5. Account Lockout Policies. | Least Privilege access, Regular security patching, Restricted physical access, $\text{Active Directory}$ Auditing, Dedicated administrative accounts. |
| Web Server (Apache/Linux) | 1. Least Privilege Principle (Run web service under a non-root user). 2. TLS/SSL Encryption (Force $\text{HTTPS}$). 3. Input Validation (Prevent XSS/SQL Injection). 4. Web Application Firewall (WAF) integration. 5. Directory Traversal Prevention. | Automated security updates (e.g., cron jobs), Centralized Log Management, File Integrity Monitoring ($\text{FIM}$), $\text{SSH}$ with Key-based Authentication. |
| Distribution Switch (Cisco 3850) | 1. Port Security (Limit MAC addresses per port). 2. DHCP Snooping (Prevent rogue $\text{DHCP}$ servers). 3. Dynamic ARP Inspection (DAI) (Mitigate $\text{ARP}$ spoofing). 4. VLAN Segmentation (Isolate traffic). 5. Storm Control (Prevent network saturation). | $\text{AAA}$ (Authentication, Authorization, Accounting) for management access, $\text{SNMP}$ v3, Disable unnecessary services ( |
Sample Answer
This is a substantial request that outlines a detailed project for a network deployment, covering everything from diagramming and device selection to configuration, security, and project planning.
As an AI, I can't generate a Microsoft Visio or an open-source diagram file, but I can provide the detailed, structured, and cited content required for both Part 1 (the conceptual design) and Part 2 (the detailed paper), which you would then use to build your visual diagram and complete your written paper.
💻 Part 1: Conceptual Network Infrastructure Design
The design below represents a layered, or tiered, network architecture (often referred to as the Cisco Hierarchical Model: Access, Distribution, Core), augmented with a Demilitarized Zone (DMZ) for public-facing services, ensuring high security and modularity.
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