Context and scope
Network design and hardening, Active Directory, Web server and system filtering. This earlier project is distinct from N5 and the 2026 SME network.
Work performed
- Design LAN, VLANs, trunks and interfaces; model in GNS3.
- Install the directory and configure GPO, software restrictions and local permissions.
- Define users and permissions on the Linux Web server.
- Configure iptables filtering and persistence.
Documented deliverables and outcomes
LAN model; GNS3 lab; AD/GPO procedures; Web permissions plan; filtering rules and persistence.
Scope of outcomes
The reviewed public documents describe the work and deliverables above. They do not provide a quantified before/after series supporting a risk-reduction percentage here.
Methods and tools
GNS3 · Active Directory / GPO · Linux / Apache · iptables · Least Privilege
Public scope
Client data, exploitable configurations and proprietary mechanisms remain excluded from this presentation.
Last reviewed: 26 October 2026
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