BGP Communities and Route Filtering on Cisco IOS-XE: A Practical Engineer's Guide
New post up — BGP communities and route filtering on Cisco IOS-XE. Covers community propagation, outbound tagging, inbound local-pref filtering, RTBH for...
Spanning Tree Protocol (STP) and RSTP on Cisco IOS-XE: Configuration, Troubleshooting, and Best Practices
New post from Sarah Chen on ignaonline.com: Spanning Tree Protocol (STP) and RSTP on Cisco IOS-XE: Configuration, Troubleshooting, and Best Practices STP and...
Self-Hosting Authentik: Add Real SSO to Your Homelab
Hey, Running a homelab with 5+ self-hosted apps and tired of managing separate logins for each one? Today we published a full walkthrough on setting up...
Trail Communication Setup for Off-Road Adventures: CB Radios, GMRS, and Satellite Messengers
Hey there, New post from Jake Morrison on IGNA Online — this one is for everyone who has ever lost their buddy around a blind corner with zero cell signal....
AAA Authentication with TACACS+ and Cisco ISE on IOS-XE: The Complete Configuration Guide
New post from Sarah Chen on ignaonline.com: AAA Authentication with TACACS+ and Cisco ISE on IOS-XE: The Complete Configuration Guide Stop guessing who ran...
Self-Hosting Vaultwarden: Run Your Own Bitwarden Password Manager on Docker
New post on ignaonline.com Stop trusting third parties with your passwords. This week's guide walks through running Vaultwarden — a lightweight, self-hosted...
IPv6 Deployment on Cisco IOS-XE: A Practical Engineer's Guide
Most enterprise networks still run dual-stack at best in 2026 — and many haven't touched IPv6 at all. That's no longer acceptable. ISPs hand out IPv6...
Best GPUs for 1440p Gaming in 2026: RTX 5070, RX 9070 XT, and the Cards Worth Buying
New post on ignaonline.com by Jimmy Whitlock: Best GPUs for 1440p Gaming in 2026: RTX 5070, RX 9070 XT, and the Cards Worth Buying Jimmy's no-BS guide to the...
DMVPN Phase 2 on Cisco IOS-XE: Spoke-to-Spoke Tunnels Explained
New post from Sarah Chen on ignaonline.com: DMVPN Phase 2 Configuration on Cisco IOS-XE: Spoke-to-Spoke Tunnels Explained DMVPN Phase 2 enables direct spoke-...
OSPF Troubleshooting on Cisco IOS-XE: Adjacency Failures, Flapping, and Fixes
Hey, New post on IGNA Online from Sarah Chen: OSPF Troubleshooting on Cisco IOS-XE: Adjacency Failures, Flapping, and Fixes OSPF adjacency failures are one...
Airing Down for the Trail: Off-Road Tire Pressure Guide and Best Portable Compressors (2026)
New post from Jake Morrison on IGNA Online. Covers the physics of airing down, PSI recommendations by terrain (rocks, sand, mud), deflator tool comparisons,...
Cisco EEM Scripts: Automate IOS-XE with Embedded Event Manager
New post on IGNA Online: Cisco EEM Scripts: Automate IOS-XE with Embedded Event Manager Cisco's Embedded Event Manager (EEM) is one of the most underutilized...
DeFi Security in 2026: $169M in Q1 Hacks and the AI Arms Race in Smart Contracts
Q1 2026 saw 34 DeFi protocols hacked for $169M — and the attackers are getting faster. AI models are now autonomously exploiting smart contract...
New on IGNA Online: Control Plane Policing (CoPP) on Cisco IOS-XE
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...
New on IGNA Online: QoS on Cisco IOS/IOS-XE: A Practical Guide to Prioritizing Voice and Video Traffic
QoS misconfigurations are the number-one cause of jittery voice calls and stuttering video in enterprise networks. This guide walks through a production-...
New on IGNA Online: Network Automation with Python: Netmiko, NAPALM, and Nornir — A Practical Guide
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...