September 2026
SD-WAN Assurance: What to Monitor Before Blaming the ISPNew!!
An SD-WAN assurance runbook for separating ISP, underlay, overlay, policy, DNS, SaaS, and application problems before escalating.
Can a Local Coding Model Run an Agent? Test Tools, Patches, and SafetyNew!!
Use a disposable repository to test a self-hosted coding model's API, tool calls, patch quality, refusal boundaries, and rollback before giving it real code.
Is Your Self-Hosted AI Actually Private? Audit Every Data PathNew!!
A practical audit for local AI prompts, cloud model selection, web and vision sidecars, exposed APIs, logs, and backups before sensitive data enters the system.
Local LLMs in the Codex App: OpenCodex Setup and Privacy LimitsNew!!
Route the Codex app to a local Ollama model through OpenCodex, verify the actual request path, and know when the native Codex CLI is simpler.
Why Port Forwarding Fails: Diagnose Double NAT, CGNAT, and IPv6 Before Buying GearNew!!
A topology-first troubleshooting guide for failed port forwards: public IP checks, double NAT, CGNAT, IPv6 firewall rules, UPnP, VPN, and tunnel alternatives.
Stop Binding Paid Wi-Fi Time To A Phone MAC AddressNew!!
A documentation-backed, testable runbook for Stop Binding Paid Wi-Fi Time To A Phone MAC Address, with safe defaults, validation evidence, failure modes, rollback, and publication-day checks.
EVPN/VXLAN Lab First: Build a Cisco IOS XE Fabric Before Touching ProductionNew!!
A Cisco IOS XE EVPN/VXLAN lab guide focused on underlay, overlay, VTEPs, VNIs, BGP EVPN, validation, and production-readiness checks.
From Digital Twin to Change Window: A Safe Network CI/CD WorkflowNew!!
A network CI/CD workflow showing how to move from intent and digital twin validation to reviewed change windows, rollback, and post-change evidence.
Coding Agents In Docker Sandboxes: Test The BoundaryNew!!
A documentation-backed, testable runbook for Coding Agents In Docker Sandboxes: Test The Boundary, with safe defaults, validation evidence, failure modes, rollback, and publication-day checks.