Grafana Alloy Log Collection — Docker Logs with Loki in 2026

Grafana Alloy is the official Promtail replacement with EOL in March 2026. This guide covers a complete Docker logging stack with Alloy, Loki, and Grafana — including Alloy config syntax, Docker auto-discovery, host log collection, and the migration path from Promtail.

May 14, 2026 · 10 min · 2056 words · GnTech

Cloudflare Tunnel with Docker — Expose Homelab Services Securely

Run Cloudflare Tunnel in Docker to expose homelab services through Cloudflare’s edge. No open firewall ports, automatic HTTPS, and per-service ingress rules via a single cloudflared container.

May 14, 2026 · 7 min · 1368 words · GnTech
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Windows Server 2025: Windows Hello for Business — Hybrid Key Trust

Deploy Windows Hello for Business in hybrid key trust mode: enterprise PKI setup, DC certificates, GPO policy, user enrollment, PIN configuration, and verification.

May 14, 2026 · 11 min · 2155 words · GnTech
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Windows Server 2025: Entra ID Hybrid Join + Device Registration

Configure Microsoft Entra hybrid join for on-premises domain-joined devices: SCP via GPO or Entra Connect, automatic registration startup via Scheduled Task, verification with dsregcmd, and troubleshooting registration failures.

May 14, 2026 · 9 min · 1909 words · GnTech
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Windows Server 2025: Writeback — Cloud to On-Premises (Password, Device, and Group)

Enable password writeback (SSPR), device writeback (Hybrid Entra Join), and group writeback (Microsoft 365 groups) from cloud to on-premises Active Directory using Entra Connect.

May 14, 2026 · 10 min · 2126 words · GnTech

Docker Compose Health Checks — Reliable Service Startup Orchestration

Stop using sleep and wait-for-it scripts. Use Docker Compose health checks with proper conditions to orchestrate service startup in your homelab reliably.

May 14, 2026 · 10 min · 1984 words · GnTech
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Windows Server 2025: Microsoft Entra Connect — On-Premises to Cloud Identity Sync

Step-by-step Microsoft Entra Connect v2 installation on Windows Server 2025: prerequisites, express install, custom configuration with OU filtering and writeback, verification, and mandatory upgrade before September 30, 2026.

May 14, 2026 · 11 min · 2315 words · GnTech

Proxmox ZFS ARC Tuning — Optimize Cache for VM Performance

Set deterministic ZFS ARC limits, add L2ARC without wasting RAM on metadata, and tune recordsize and compression for your Proxmox homelab VMs.

May 14, 2026 · 10 min · 2027 words · GnTech
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Windows Server 2025 Group Policy Management — GPMC, WUfB, and Central Store

Step-by-step Group Policy management on Windows Server 2025: GPMC install, GPO creation/linking, security and WMI filtering, ADMX templates, backup/restore, and Windows Update for Business deployment rings.

May 14, 2026 · 16 min · 3208 words · GnTech

Docker Socket Proxy — Secure API Access Without Giving Away Root

Secure your Docker socket with a proxy that grants granular API permissions to Portainer, Watchtower, Traefik, and Dozzle — without exposing root-level access.

May 14, 2026 · 10 min · 2126 words · GnTech