Networking
Ubiquiti Site Magic Routing: A No-Nonsense Beginner Guide to Routes, Route Injection, and Software-Defined Wide Area Network Fabric Design
Site Magic is one of those UniFi features that feels easy until the first routing problem shows up. The tunnel says it is connected. Both sites look healthy. You can see the remote gateway. Then the actual server, printer, backup target, or management page still does not work. That is when the uncomfortable truth appears: […]
Building a Network Digital Twin Workflow
A network digital twin is useful when it models topology, intent, policy, dependencies, and change impact. Here is a practical workflow for using it safely.
Homelab DNS Guide: Local Names, Ad Blocking, and Reliability
A practical homelab DNS design for local names, ad blocking, split DNS, redundant resolvers, VPN clients, and safe internal naming.
Campus Segmentation Design: From VLANs to Unified Fabric
Campus segmentation should evolve from VLAN sprawl toward a hierarchy of VRFs, virtual networks, SGTs, and group-based policy that operations teams can actually manage.
Wi-Fi 7 in the Enterprise: Where Cisco’s Outdoor APs Fit
Wi-Fi 7 is not just a speed upgrade. Outdoor and large-venue Wi-Fi 7 designs need channel planning, PoE, uplink capacity, RF validation, client readiness, and operational telemetry.
Cisco C9550 Smart Switches and the AI-Ready Campus Core
The Cisco C9550 Series points campus core and aggregation design toward higher uplink density, stronger telemetry, hardware-rooted trust, Live Protect, and post-quantum readiness.
Homelab VLAN Design: Simple Network Segmentation That Works
A practical VLAN design guide for homelabs, covering trust zones, VLAN IDs, trunks, access ports, firewall rules, mDNS, and rollback planning.
Post-Quantum Networking: What Cisco’s Quantum-Ready Push Means
Post-quantum networking is about inventory, crypto-agility, long-lived data risk, secure boot, VPNs, certificates, and refresh planning before the emergency arrives.
Designing Networks With DoD IL5 in Mind: Campus, Data Center, IT, and OT Security
A network is not "Department of Defense (DoD) Impact Level 5 (IL5) compliant" by itself. A network can, however, be designed to support a mission system categorized at IL5 or pursuing a DoD IL5 authorization. That distinction matters. IL5 is about the mission system, the authorization boundary, the data being protected, the controls that are […]
Live Protect and Runtime Vulnerability Shielding for Network Infrastructure
Live Protect is Cisco’s runtime shielding approach for reducing exposure while teams plan upgrades. It should complement patching, segmentation, and lifecycle management, not replace them.