IGNA Online

Most network engineers harden the data plane and forget the control plane — until an SNMP flood drops their OSPF adjacencies. This guide walks through a production-ready CoPP policy for Cisco IOS-XE, with real CLI templates, tuning guidance, and the show commands you need to verify it’s working.

QoS misconfigurations are the number-one cause of jittery voice calls and stuttering video in enterprise networks. This guide walks through a production-ready MQC QoS policy for Cisco IOS and IOS-XE — covering DSCP markings, LLQ, CBWFQ, NBAR2 classification, and the exact show commands you need to verify it’s working.

Stop logging into devices one by one. This hands-on guide covers Netmiko, NAPALM, and Nornir — the Python libraries that let network engineers automate Cisco IOS/IOS-XE tasks, parse show command output, push config changes, and run parallel jobs across hundreds of devices. Real code, real CLI examples, production-ready patterns.

Turn a Raspberry Pi into a powerful, privacy-first smart home hub with Home Assistant. This step-by-step guide covers installation, initial setup, integrations, automations, and pro tips to get your homelab-grade smart home running in an afternoon.

Stop sending sensitive data to the cloud. This complete guide shows you how to run powerful open-source AI models like Mistral and Llama locally using Ollama — with Docker, a web UI, VS Code integration, and GPU acceleration.

Build your own Netflix — a complete guide to setting up Plex in Docker with hardware transcoding, remote access, and storage planning.

BGP is the glue that holds the internet together — learn how it works, how to configure it on Cisco, and the security challenges it faces.

Steam Deck, ROG Ally, or Legion Go? A head-to-head comparison of specs, performance, battery life, and which handheld is right for you.

Tailscale makes VPN dead simple — install it, and your devices just connect. Here’s how to set it up with subnet routing, exit nodes, and SSH.