Migrate Docker from iptables to the native nftables firewall backend. Configure docker daemon.json for nftables on Debian 13, test port publishing, and troubleshoot common migration issues.
Prevent OOM killer crashes on your Docker homelab host. Configure systemd OOMD, set proper oom_score_adj values, enable earlyoom, and apply cgroups v2 memory limits for reliable container operation.
Run Docker Buildx on a single Linux host to produce amd64 plus arm64 images. Configure QEMU binfmt emulation, build with buildx bake, and push multi-manifest images to any registry.
Passthrough an Intel iGPU through Proxmox to a VM for Jellyfin hardware transcoding. Configure IOMMU, bind vfio-pci, verify groups, and tune performance.
Monitor disk health proactively with smartmontools and Scrutiny. Covers smartd alert configuration, reading SMART attributes, and deploying a Scrutiny Docker dashboard for centralized multi-host disk health tracking.
Harden your Docker images with multi-stage builds, distroless base images, and runtime security options. A practical guide to reducing image size and CVEs in your homelab.
Compare Btrfs and ZFS for homelab storage on Proxmox and Docker. Architecture, memory, snapshots, compression, and practical recommendations.
Protect your homelab from brute-force attacks with Fail2ban. Deploy on bare-metal for SSH and configure custom jails for Docker containers using Traefik and Nginx logs with email alerting.
Automate PostgreSQL and MySQL database backups in Docker Compose with cron-driven pg_dump and mysqldump, retention pruning, healthchecks monitoring, and S3 off-site upload. Production-ready configs included.
Complete guide to Linux CPU frequency scaling and power management for 24/7 homelab servers. Covers cpupower governors, Intel and AMD p-state drivers, Turbo Boost control, C-states, and performance tuning tradeoffs with real commands.