Tutorials

Homelab
Proxmox Backup Server for Beginners

A beginner-friendly Proxmox Backup Server guide explaining PBS, retention, pruning, verification, restore drills, encryption, offsite sync, and sizing.

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Homelab
Proxmox 9.x Upgrade Plan for Home Labs

A practical Proxmox 9.x upgrade runbook for home labs, covering backups, pve8to9 checks, repositories, Ceph caveats, rollback, and post-upgrade validation.

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Networking
Philippine 3G Shutdown Audit For Every Branch Device

Audit branch modems, alarms and payment devices by carrier, location and actual voice, SMS or data use. Verify the applicable shutdown schedule and test replacements before removing the existing cellular path.

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Network Security
Scan-To-Email After The SMTP AUTH Delay

Choose a scanner mail path by authentication capability and recipient scope. Separate SMTP AUTH from Basic authentication, then plan delivery, attachment and queue-recovery checks without broad tenant exceptions.

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AI
Minimum Viable Evals for Technical AI Workflows

A practical AI evals guide for testing prompts, RAG, coding assistants, config review, assertions, Ragas, promptfoo, and regression checks.

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Network Security
Prepare For NTLM-Off Windows

Start NTLM reduction with auditing and application dependency repair. Identify service, scanner and share access before testing denial in a recoverable scope, rather than applying domain-wide restrictions without evidence.

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Network Security
Windows Server 2012/R2 Final ESU Exit

Plan Windows Server 2012 and 2012 R2 retirement by server role, supported destination and recovery dependencies. Validate identity, applications and newer data before treating a copied VM as a completed migration.

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Homelab
Performance Tuning Ollama and Local LLMs Without Guesswork

Tune Ollama from a repeatable baseline, checking model fit, context, memory placement, concurrency, and answer quality; change one setting at a time and keep a rollback path.

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Homelab
The 2026 Secure Boot Certificate Transition For Proxmox And Debian

Separate physical-host firmware, Debian boot packages, Proxmox virtual firmware and Windows guest trust during Secure Boot planning. Rehearse console and recovery access before changing enrolled certificates.

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AI
Open WebUI Security Baseline: Patch, Isolate, And Test Tool Permissions

Assess Open WebUI patch scope and ordinary-user access to chats, files, retrieval collections and tools. Test backend denials separately from visible interface controls, using synthetic data and harmless actions.

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