https://blog.gntech.me/ Recent content on GnTech Blog Hugo en-us Sat, 20 Jun 2026 10:30:00 -0400 https://blog.gntech.me/posts/2026-06-20-homelab-10gbe-networking-mikrotik-proxmox/ Sat, 20 Jun 2026 10:30:00 -0400 https://blog.gntech.me/posts/2026-06-20-homelab-10gbe-networking-mikrotik-proxmox/ Plan and deploy 10GbE networking for your homelab — MikroTik CRS switch configuration, SFP+ cabling choices, Proxmox host integration, and Linux NIC tuning for maximum throughput. https://blog.gntech.me/posts/2026-06-20-docusaurus-homelab-documentation-guide/ Sat, 20 Jun 2026 09:30:00 -0400 https://blog.gntech.me/posts/2026-06-20-docusaurus-homelab-documentation-guide/ Build and deploy Docusaurus as a self-hosted documentation site for your homelab. From install to Docker deployment with full-text search, versioning, and GitOps publishing. https://blog.gntech.me/posts/2026-06-18-linux-tcp-bbr-congestion-control-proxmox-docker-lxc/ Thu, 18 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-18-linux-tcp-bbr-congestion-control-proxmox-docker-lxc/ Step-by-step guide to enabling TCP BBR congestion control on Linux for Proxmox hosts, Docker containers, and LXC. Includes sysctl tuning, kernel module loading, iperf3 benchmarks, and practical performance gains for homelab and remote streaming. https://blog.gntech.me/posts/2026-06-17-cgroups-v2-docker-container-resource-limits/ Wed, 17 Jun 2026 13:30:00 -0400 https://blog.gntech.me/posts/2026-06-17-cgroups-v2-docker-container-resource-limits/ Deep dive into Linux cgroups v2 for Docker container resource control — memory.max/high, CPU quotas, I/O weights, PSI monitoring, and docker-compose deploy.resources configurations for homelab. https://blog.gntech.me/posts/2026-06-17-cilium-cni-k3s-ebpf-networking-homelab/ Wed, 17 Jun 2026 11:00:00 -0400 https://blog.gntech.me/posts/2026-06-17-cilium-cni-k3s-ebpf-networking-homelab/ Replace K3s default Flannel with Cilium CNI for eBPF-powered networking, kube-proxy replacement, Hubble observability, and identity-based network policies in your homelab. https://blog.gntech.me/posts/2026-06-16-proxmox-firewall-security-hardening/ Tue, 16 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-16-proxmox-firewall-security-hardening/ Harden Proxmox VE with datacenter-level firewall rules, dynamic IPSets for trusted management networks, fail2ban protection, and cluster-wide security policies. https://blog.gntech.me/posts/2026-06-16-container-runtimes-runc-vs-crun-docker/ Tue, 16 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-16-container-runtimes-runc-vs-crun-docker/ Compare runc and crun container runtimes for Docker in your homelab. Benchmark startup times, memory usage, and io_uring support. Switch runtimes in minutes with a simple daemon.json change. https://blog.gntech.me/posts/2026-06-15-docker-overlay2-storage-driver-linux-guide/ Mon, 15 Jun 2026 18:30:00 -0400 https://blog.gntech.me/posts/2026-06-15-docker-overlay2-storage-driver-linux-guide/ Deep dive into Docker's overlay2 storage driver on Linux — how layers work, managing disk space, troubleshooting common issues, and performance tuning for homelab deployments. https://blog.gntech.me/posts/2026-06-15-paperless-ngx-docker-deployment-homelab/ Mon, 15 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-paperless-ngx-docker-deployment-homelab/ Deploy Paperless-ngx with Docker Compose for self-hosted AI-powered document management. OCR, ML auto-classification, consumption templates, and automated ingestion pipeline. https://blog.gntech.me/posts/2026-06-15-proxmox-api-tokens-rbac-secure-automation/ Mon, 15 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-proxmox-api-tokens-rbac-secure-automation/ Set up Proxmox API tokens with role-based permissions for secure automation, Terraform, Ansible, and third-party tool access without sharing root credentials. https://blog.gntech.me/posts/2026-06-15-mikrotik-routeros-container-apps-deployment/ Mon, 15 Jun 2026 16:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-mikrotik-routeros-container-apps-deployment/ Deploy Gitea, Home Assistant, and other services on MikroTik RouterOS with the new App catalog. One-click container setup with automatic firewall, NAT, and networking. https://blog.gntech.me/posts/2026-06-15-samba-file-server-proxmox-lxc-zfs/ Mon, 15 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-15-samba-file-server-proxmox-lxc-zfs/ Build a lightweight, high-performance Samba NAS inside a Proxmox LXC with direct ZFS dataset passthrough. Covers privileged LXC setup, UID mapping, performance tuning, and backup integration. https://blog.gntech.me/posts/2026-06-15-docker-monitoring-prometheus-grafana-homelab/ Mon, 15 Jun 2026 14:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-docker-monitoring-prometheus-grafana-homelab/ Deploy a full Docker monitoring stack with Prometheus, Grafana, cAdvisor, and node_exporter in your homelab. Real docker-compose configs, dashboards, and alerting. https://blog.gntech.me/posts/2026-06-15-opnsense-virtual-firewall-proxmox-homelab/ Mon, 15 Jun 2026 14:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-opnsense-virtual-firewall-proxmox-homelab/ Deploy OPNsense as a virtual firewall in Proxmox for full network segmentation, VLAN routing, IDS/IPS with Suricata, and WireGuard VPN — real configs included. https://blog.gntech.me/posts/2026-06-15-ntfy-self-hosted-push-notification-server-homelab/ Mon, 15 Jun 2026 11:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-ntfy-self-hosted-push-notification-server-homelab/ Deploy ntfy.sh on Docker for unified push notifications across your homelab. Integrate with Uptime Kuma, Prometheus Alertmanager, and cron scripts for real-time mobile alerts. https://blog.gntech.me/posts/2026-06-15-proxmox-zfs-snapshot-replication-backup/ Mon, 15 Jun 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-proxmox-zfs-snapshot-replication-backup/ Automate Proxmox VM backups with ZFS snapshot replication using zfs send/recv, sanoid, and syncoid. Real scripts, cron schedules, and disaster recovery walkthrough. https://blog.gntech.me/posts/2026-06-13-podman-rootless-containers-docker-alternative-homelab/ Sat, 13 Jun 2026 14:00:00 -0400 https://blog.gntech.me/posts/2026-06-13-podman-rootless-containers-docker-alternative-homelab/ Migrate from Docker to rootless Podman for safer homelab deployments. Installation, podman-compose, Quadlets, rootless networking, and Docker migration strategies. https://blog.gntech.me/posts/2026-06-13-docker-supply-chain-security-sbom-image-signing/ Sat, 13 Jun 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-06-13-docker-supply-chain-security-sbom-image-signing/ Secure your container supply chain in the homelab with SBOM generation via Syft, image signing with Cosign, vulnerability scanning via Grype, and Docker Content Trust enforcement. Real commands and workflows. https://blog.gntech.me/posts/2026-06-12-docker-compose-yaml-anchors-extensions/ Fri, 12 Jun 2026 18:00:00 -0400 https://blog.gntech.me/posts/2026-06-12-docker-compose-yaml-anchors-extensions/ Stop repeating config across docker-compose services. Learn YAML anchors, x-blocks, and extension patterns to write clean, maintainable Compose files for your homelab. https://blog.gntech.me/posts/2026-06-12-proxmox-vm-disk-performance-benchmark/ Fri, 12 Jun 2026 16:30:00 -0400 https://blog.gntech.me/posts/2026-06-12-proxmox-vm-disk-performance-benchmark/ Benchmark and tune Proxmox VM disk performance. Compare VirtIO-blk vs VirtIO-SCSI single controllers, IO threads, aio modes, and cache settings with fio benchmark results.