Tutorials
Coding Agents In Docker Sandboxes: Test The Boundary
Distinguish Docker Sandboxes from ordinary containers before assessing a coding agent. Review mounts, credentials, sockets and network controls with harmless boundary tests, without claiming isolation makes escape impossible.
The First 60 Minutes Of A Small-Office Cyber Incident
Organize the first hour around clean communications, safety-aware containment, backup protection and an evidence timeline. Prepare a responder handoff without confusing isolation or elapsed time with completed recovery.
Network Source of Truth Before AgenticOps: NetBox, Nautobot, and Intent Data
A practical source-of-truth guide for preparing NetBox, Nautobot, and intent data before AI-assisted network automation.
Fix Sticky Wi-Fi Clients: 802.11k/v/r, Minimum RSSI, and Roaming Tests
A practical sticky-client Wi-Fi guide: AP placement, transmit power, 802.11k/v/r, minimum RSSI, Apple behavior, controller settings, and roaming tests.
RouterOS Device Mode Can Silently Disable PisoWiFi HotSpot
Inspect RouterOS device mode and HotSpot's inactive reason before rebuilding a PisoWiFi portal. Preserve feature overrides, paid-session records and local recovery before any physically confirmed, rebooting mode change.
DNS Privacy vs DNS Filtering: Stop Mixing Up the Jobs
A DNS guide explaining the difference between encrypted DNS, DNSSEC, Protective DNS, malware filtering, parental controls, and resolver bypass.
Moving Beyond SMS MFA: A Household Migration Plan
A household MFA migration plan for moving from SMS codes to authenticator apps, passkeys, security keys, recovery codes, and carrier protections.
Local Water Meter Monitoring: Privacy, Radio Data, and Safe Setup
Build a receive-only water-monitoring workflow without opening or modifying utility equipment. Check authorization, radio and cloud dependencies, data retention, leak alerts, and what detailed usage can reveal about a household.
Why Your Local Model Server Fails On User Two
Diagnose overlapping model requests through latency, queueing, failures and memory use. Compare consistent prompt workloads and cache conditions before setting admission limits from single-user throughput or another server's benchmark.
Email Is the Root Account: Lock It Down Before Anything Else
Protect the mailbox that receives high-impact account resets and map its actual recovery dependencies. Review hidden access and independent fallback methods without assuming every linked service uses the same recovery model.