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Configuring NBDE on Fedora with Clevis and Tang: Automatic LUKS Unlocking on Your Local Network

By admin July 13, 2026

A guide to configuring NBDE (Network-Bound Disk Encryption) on Fedora with Clevis and Tang to automatically unlock LUKS-encrypted drives on reboot within a local network, without manually entering a passphrase. Includes practical experience from 6 months of production use, plus how to handle Tang server unavailability.

Linux

eza, bat, and fd-find on Linux: The Modern Trio Replacing ls, cat, and find

By admin July 13, 2026

eza, bat, and fd-find are three modern Rust tools that replace ls, cat, and find on Linux with syntax highlighting, integrated git status, and simpler syntax. This guide covers installation and real-world usage with specific command examples for both Ubuntu/Debian and CentOS/RHEL.

Linux

Optimizing the Linux Kernel: How to ‘Tailor-Make’ and Package .deb for Ubuntu and Debian

By admin July 12, 2026

Learn how to compile the Linux Kernel from source to remove redundant modules, reduce RAM consumption, and package it as a .deb for more efficient Ubuntu/Debian server management.

Linux

Linux Filesystem Comparison: ext4, XFS, Btrfs, and F2FS — Choosing the Right One for Each Server Scenario

By admin July 10, 2026

A detailed comparison of four popular Linux filesystems — ext4, XFS, Btrfs, and F2FS — covering performance, key features, and real-world use cases. A practical guide to choosing the right filesystem for each server type: database, storage, general purpose, and flash storage devices.

Linux

systemd-networkd: Minimal Linux Server Network Configuration — Replace NetworkManager with .network Files

By admin July 10, 2026

A guide to switching from NetworkManager to systemd-networkd on a headless Linux server — configure your network with simple .network files that are lighter and boot faster. Includes a 5-minute quick start, static IP and DHCP setup, multi-interface and VLAN configuration, and practical debugging tips from real VPS management experience.

Linux

Writing udev Rules on Linux: Fixed Network Interface Names and Auto-triggering Scripts on USB Plug-in

By admin July 8, 2026

udev rules give you control over how Linux names hardware devices — from network interfaces to USB serial ports. This guide covers writing practical rules to assign fixed interface names by MAC address, create persistent symlinks for USB devices, and auto-run scripts when a device is plugged in.

Linux

A Practical Guide to jq on Linux: Filtering and Processing JSON from APIs in the Terminal

By admin July 8, 2026

When you're debugging production at 2 AM staring at an unreadable wall of JSON in your logs, jq saves you more time than any other approach. This guide compares jq against grep and Python for handling JSON in the terminal, covering everything from basic syntax to filtering Docker containers and Kubernetes API responses in practice.

Fedora

Installing and Configuring Redis on Fedora Server: Handling SELinux and firewalld for High-Performance Cache Server Deployment

By admin July 7, 2026

Redis on Fedora Server won't connect after installation — the root cause typically comes from three layers: the default localhost bind address, firewalld blocking port 6379, and SELinux enforcing mode denying network connections. This article goes straight to fixing all three, with a production security deployment checklist included.

Linux

Expert Tricks for Using sysstat to Diagnose a Slow Linux Server

By admin July 7, 2026

Don't let your Linux server run slow without knowing why. Learn how to use iostat, vmstat, sar, and mpstat to track down performance bottlenecks and troubleshoot incidents like a pro.

Fedora

How to Install and Configure NFS Server on Fedora: Securely Share Directories on Your Local Network with SELinux and firewalld

By admin July 6, 2026

A guide to installing NFS Server on Fedora from quick start to full detail: configuring /etc/exports, properly opening firewalld, enabling SELinux booleans, and fixing ports so firewall rules survive reboots. Includes instructions for mounting from a client and handling common real-world errors.