linux Archives - Page 13 of 23

Stop the Symlink Madness: Managing Java and Python Versions with update-alternatives

May 3, 2026

Ditch the manual symlinking. This guide shows you how to use Linux update-alternatives to master version management for Java, Python, and GCC in production.

Linux

Stop Using VMs: Master Distrobox for a Cleaner Linux Workflow

May 2, 2026

Ditch the heavy virtual machines. Learn how to run Arch, Fedora, and Kali Linux inside your terminal with full GUI support and native performance using Distrobox.

Linux

Linux Environment Variables: From Local Shells to Production Servers

May 1, 2026

Master Linux environment variables with this practical guide. Learn the differences between .bashrc and /etc/environment, how to handle .env files, and best practices for securing production secrets.

Networking

Split-Horizon DNS with BIND9: Stop Hairpinning Your Internal Traffic

April 30, 2026

Solve routing loops and improve network security by configuring Split-Horizon DNS with BIND9. This guide shows you how to serve different IP addresses based on the user's location.

Linux

Mastering Sed and Awk: High-Performance Linux Text Processing

April 30, 2026

Ditch the heavy editors. Master Sed and Awk to process massive log files and automate reports directly from the Linux command line without risking a server crash.

Networking

GNS3 on Ubuntu: Build a Pro-Grade Network Lab Without the Hardware Cost

April 30, 2026

Ditch the expensive hardware. This guide shows you how to install GNS3 on Ubuntu, tune it for peak performance using KVM, and bridge your virtual labs to the physical world.

Linux

Mastering Software RAID with mdadm: A Practical Guide to Linux Disk Redundancy

April 29, 2026

Don't let a drive failure take down your server. This guide shows you how to configure mdadm on Linux to create RAID 0, 1, 5, and 6 arrays for maximum uptime.

Linux

Linux IPC: A Practical Guide to Pipes, Queues, Shared Memory, and Sockets

April 29, 2026

A deep dive into Linux IPC mechanisms. Learn when to use Pipes, Sockets, and Shared Memory, featuring performance tips and resource management strategies.

Networking

Linux Network Performance Monitoring with Prometheus and Grafana: A to Z Guide

April 28, 2026

Learn how to monitor Linux network performance using Prometheus, node_exporter, and Grafana. This guide covers installation, key PromQL queries for TCP retransmits and packet drops, Grafana dashboard setup, and production alerting rules — based on real-world experience tracking down silent network saturation issues.

Networking

Deploying Network Access Control (NAC) with PacketFence: Automate Device Authentication on Wired and Wi-Fi Networks

April 28, 2026

PacketFence is an open-source NAC platform that controls which devices can connect to your wired and Wi-Fi network using 802.1X, RADIUS, and dynamic VLAN assignment. This guide covers installation, switch configuration, Active Directory integration, and deployment tips drawn from a real ransomware incident response.