Networking Archives - Page 8 of 10

Networking tutorial - IT technology blog

Linux QoS with tc and iproute2: Stop Your Backups from Killing Your App

April 6, 2026

Tired of backups choking your production web traffic? Learn how to use Linux Traffic Control (tc) and HTB to prioritize critical services and guarantee bandwidth.

Networking

Benchmarking Linux Network Performance: A Practical Guide to iperf3 and mtr

April 3, 2026

Tired of vague network complaints? Learn to use iperf3 and mtr to pinpoint bottlenecks, measure throughput, and analyze packet loss like a pro.

Networking

6 Months of Encrypted DNS on Linux: My Real-World Take on DoT and DoH

April 2, 2026

Secure your Linux DNS queries with DoT and DoH. This guide provides a 6-month review of production performance, including step-by-step setups for systemd-resolved and cloudflared.

Networking

tcpdump: Network Packet Analysis from the Linux Command Line

April 2, 2026

tcpdump is the go-to command-line tool for capturing and analyzing network packets on Linux — no GUI, no overhead, just raw visibility into what's actually flowing through your interfaces. This guide walks through practical capture commands, BPF filters, and real production debugging scenarios to help you troubleshoot network issues fast.

Networking

Stop Juggling Ports: Automate Docker Traffic with Traefik and Let’s Encrypt

March 30, 2026

Say goodbye to manual Nginx updates. This guide shows you how to set up Traefik for Docker, enabling automatic SSL and dynamic routing through simple container labels.

Networking

Dynamic Routing on Linux: A 6-Month FRRouting Production Post-Mortem

March 29, 2026

Is static routing holding your Linux infrastructure back? Discover how we moved to FRRouting to achieve sub-second failover and automated route discovery in a production environment.

Networking

Fixing 2 AM Network Outages: A Guide to CIDR Overlaps and DNS Troubleshooting

March 29, 2026

Production down at 2 AM? Manual IP math is your enemy. This guide covers a real-world troubleshooting workflow using subnet calculators and DNS tools to fix routing conflicts fast and privately.

Networking

Cloudflare Tunnel: Securely Expose Internal Services Without Opening Firewall Ports

March 27, 2026

Picture this: It's 2 AM, and you need to expose an internal service. Opening firewall ports is a massive security risk, but Cloudflare Tunnel offers a secure, port-free solution. This guide details how to set it up, allowing you to safely publish web apps and SSH without compromising your network.

Networking

Configure HAProxy/Nginx Load Balancer for Web App High Availability

March 27, 2026

Don't let a single server failure take down your web application. Learn how to configure HAProxy and Nginx as robust load balancers to ensure high availability and enhance scalability. This tutorial walks you through quick setups, deep dives into configurations, and shares essential practical tips for a resilient production environment.

Networking

Tailscale: Simple Mesh VPN for Small Teams – A Practical Guide

March 26, 2026

Discover how Tailscale simplifies networking for small teams, providing secure and easy access to devices anywhere. This guide covers its mesh VPN approach, pros and cons, recommended setup, and a step-by-step implementation for seamless connectivity.