Moving Docker from development to production requires thinking carefully about data persistence, network isolation, and secret management. This guide covers production‑ready patterns using Docker Comp...
LUKS full disk encryption protects your data at rest, and pairing it with TPM2 allows passwordless unlocking on trusted hardware. Walk through the full setup from scratch.
A default SSH configuration is often the weakest point in a Linux server's security. This guide covers key‑based authentication, fail2ban, port knocking, and essential SSHD configuration hardening.
Run containers without root using Podman: user namespaces, subuid setup, ports, volumes, Compose, and Quadlet units that start your containers at boot.
Set up a WireGuard VPN server on Linux: key generation, server and client configs, IP forwarding and NAT, firewall rules, and how to troubleshoot a tunnel.
Btrfs vs ZFS compared for home servers and NAS boxes: checksums, snapshots, RAID, memory use, licensing, and why Synology builds on Btrfs.
Learn LVM step by step: physical volumes, volume groups, logical volumes, growing filesystems online, snapshots, moving data between disks and LVM on LUKS.
A practical guide to systemd units: writing service files, replacing cron with timers, socket activation, drop-in overrides, logs and sandboxing.
Write Bash scripts that fail safely: strict mode, quoting, ERR and EXIT traps, temp files, argument parsing, locking, and ShellCheck, with tested examples.
Practical find and xargs recipes: match by name, age, size and permissions, handle spaces with -print0, use -exec +, prune folders, run jobs in parallel.