Network Security
Private DNS for Homelabs Without Leaking Internal Services
Plan private homelab naming with home.arpa or an owned domain, split DNS, VPN resolution, and certificate choices, then check public records and recovery from each client network.
Home DNS Without a Single Point of Failure: Pi-hole, AdGuard Home, and Technitium
Design Pi-hole, AdGuard Home, or Technitium DNS around consistent records, independent resolver failure domains, and client failover tests, with a documented recovery path before changing DHCP.
Nginx Proxy Manager vs Caddy vs Traefik: A Reverse Proxy Decision Tree
A reverse proxy decision tree for homelabs: when to pick Nginx Proxy Manager, Caddy, Traefik, or raw NGINX.
Tailscale vs WireGuard vs Cloudflare Tunnel vs Reverse Proxy
A practical remote access comparison: Tailscale, raw WireGuard, Cloudflare Tunnel, and reverse proxies solve different homelab problems.
Cisco Catalyst C9550 vs C9350: Choose the Right Campus Role
Map C9350 access requirements and an incumbent C9500 design to a C9550 model, then verify software, optics, licensing, failure tests, and rollback before migration.
Cisco Live 2026 Lab Build: A Small-Scale Reference Architecture
Plan an isolated lab for segmentation, branch routing, private-app access, telemetry, and governed changes, with failure and rollback exercises; this is a proposed build, not reported test results.
Branch Network Design for the AI Era
AI-era branch design needs SD-WAN, SSE, secure access, local resilience, application steering, Wi-Fi capacity, segmentation, and experience telemetry.
A Practical Post-Quantum Readiness Checklist for Network Teams
A practical checklist for network teams preparing for post-quantum cryptography: inventory, risk ranking, platform support, certificates, VPNs, secure boot, and refresh planning.
Resilience Planning for Cisco Networks: Patch, Shield, Replace, or Segment
A practical resilience model for Cisco networks should classify each exposure into patch, shield, replace, or segment, with owners, deadlines, and evidence.
Browser Password Managers vs Dedicated Vaults: How to Choose
Choose Chrome, Edge, Firefox, Apple Passwords, Bitwarden, or 1Password based on devices, sharing, recovery, and threat model.