Tutorials
Keycloak 26.7.1 Security Response: Map the Fixes to the Features You Actually Use
Keycloak 26.7.1 includes many security fixes. This guide maps them to OIDC, SAML, FGAP, DCR, LDAP, metrics, and upgrade validation.
Local AI Hardware Sizing: CPU, NPU, GPU, RAM, and VRAM
A local AI hardware sizing guide explaining model memory, quantization, KV cache, CPU-only use, NPUs, GPUs, RAM, VRAM, and upgrade tiers.
Bazarr 1.6.1 Security Response: Patch or Isolate, Rotate Keys, and Check for RCE
A practical Bazarr response plan for the 1.6.1 authentication bypass chain: isolate exposure, patch, rotate secrets, review logs, and decide when to rebuild.
Portainer 2.44 Security and Bootstrap Tokens: Secure First Run and Existing Installs
A Portainer security runbook for first-run exposure, setup tokens, agent trust, endpoint permissions, backups, and management-plane isolation.
October 2026 DNSSEC Root Key Rollover: Test Your Resolver Now
A documentation-backed, testable runbook for October 2026 DNSSEC Root Key Rollover: Test Your Resolver Now, with safe defaults, validation evidence, failure modes, rollback, and publication-day checks.
Entra Connect Sync September 30 Hard Stop
A documentation-backed, testable runbook for Entra Connect Sync September 30 Hard Stop, with safe defaults, validation evidence, failure modes, rollback, and publication-day checks.
Local AI Is Finally Useful: What Should You Run First?
A practical local AI starter guide for Ollama, LM Studio, Open WebUI, embeddings, structured output, private notes, and first useful workflows.
Audit Entra Password Reset Before September 7
A documentation-backed, testable runbook for Audit Entra Password Reset Before September 7, with safe defaults, validation evidence, failure modes, rollback, and publication-day checks.
WordPress Core Under Active Exploitation: Verify the Fix and Rule Out Compromise
Updating WordPress core is only the first step. Use this checklist to verify versions, checksums, users, cron, uploads, logs, WAF data, and rebuild criteria.
DNS Drift: Why Your Router, Browser, VPN, and Phone Use Different Resolvers
A detailed DNS audit for home networks and homelabs where router DHCP, browser Secure DNS, VPN clients, IPv6, and mobile Private DNS do not agree.