Home Lab / Enterprise Simulation

Mad Miller
Labs.

A production-grade enterprise merger simulation built in a home lab. Two independent Active Directory forests, purpose-built networking, and a full security stack — designed to demonstrate real infrastructure skills at every layer.

ComputeDell PowerEdge R640
RAM384 GB
Threads80 (dual Xeon)
HypervisorNutanix CE 6.8.1 / AHV
FirewallpfSense 2.8.1
SwitchCisco Catalyst 2960X
VLANs13 segments
Forests2 (merger simulation)

Architecture
01 / COMPUTE

Nutanix HCI

Nutanix CE 6.8.1 on AHV. Single-node cluster with full Prism Element management, CVM, and AHV host. Mirrors the production Nutanix environment at KKI.

02 / IDENTITY

Dual AD forests

Forest A (madmillerlabs.com) and Forest B (megacorplab.com) administered independently to simulate a pre-merger state. Tiered account model, gMSA, break-glass procedures.

03 / NETWORK

Segmented fabric

13 VLANs across management, identity, app, security, VPN, and red team segments. Explicit inter-VLAN ACLs on pfSense. DHCP relay, split-brain DNS, OpenVPN with DDNS.

04 / SECURITY

Defense-in-depth

Wazuh SIEM, Suricata IDS, Velociraptor EDR, Sysmon. PAW jumpbox with Credential Guard. Break-glass accounts with automated Wazuh alerts on use.


Network segmentation
77172.19.77.0/24ManagementMGMT
10172.19.10.0/24Forest A — DCsFOREST A
11172.19.11.0/24Forest A — UsersFOREST A
12172.19.12.0/24Forest A — ServersFOREST A
20172.19.20.0/24Forest B — DCsFOREST B
21172.19.21.0/24Forest B — UsersFOREST B
22172.19.22.0/24Forest B — ServersFOREST B
30172.19.30.0/24Cross-forest trustTRUST
40172.19.40.0/24App ServersAPP
50172.19.50.0/24Security (Wazuh)SEC
60172.19.60.0/24Red TeamRED
98172.19.98.0/24VPN poolVPN

Full stack
HypervisorNutanix CE 6.8.1AHV, Prism Element, CVM
FirewallpfSense 2.8.1Advantech FWA-ASP1012
SwitchCisco Catalyst 2960XIOS 15.2(7)E2, 48-port
OSWindows Server 2025DC, DNS, DHCP, PKI
IdentityActive DirectoryDual forest, tiered accounts
Remote accessOpenVPNCert-based, DDNS via Cloudflare
SIEMWazuhUbuntu 22.04, VLAN 50
IDSSuricatapfSense inline, all VLANs
EDRVelociraptorEndpoint telemetry + Sysmon
DNS / CDNCloudflareAuth DNS, Zero Trust, Pages
EndpointWindows 11 EnterprisePAW, Credential Guard, vTPM
AutomationPowerShellOU structure, account provisioning

Engineers
Live
Nicole Miller
Systems Engineering Manager
madmillerlabs.com — Forest A

14+ years in enterprise infrastructure. Leads Forest A design, core networking, firewall, and security stack. M.S. IT Management, WGU 2026. CISSP in progress.

View portfolio →
Coming soon
John Miller
Systems Administrator
megacorplab.com — Forest B

20 years in IT operations, healthcare systems, and desktop infrastructure. Administers Forest B independently to preserve merger simulation realism.

Portfolio in progress —