Configure centralized AAA on Cisco IOS-XE using TACACS+ and Cisco ISE, covering authentication method lists, per-command authorization, ISE policy sets, command sets, and real-world troubleshooting with full CLI examples.
n8n is the self-hosted alternative to Zapier and Make — free, open source, and running entirely on your own hardware. This guide walks through a production-ready Docker Compose deployment with PostgreSQL, Nginx reverse proxy, environment variable configuration, and practical homelab workflow examples.
A complete guide to enabling IPv6 on Cisco IOS-XE — dual-stack interfaces, OSPFv3 with address-family, DHCPv6 server and relay, RA Guard, DHCP Guard, and BGP IPv6 peering with real CLI examples.
Which portable power station actually holds up on the trail? After testing EcoFlow, Jackery, Bluetti, and Goal Zero setups in Moab and southern Utah, here are the honest picks for overlanders in 2026 — by capacity, solar input, and how they handle real camp loads.
A hands-on guide to DMVPN Phase 2 on Cisco IOS-XE — configure mGRE tunnels, NHRP, IPsec, and EIGRP for direct spoke-to-spoke VPN connectivity without static tunnel configuration between sites. Includes real CLI examples and troubleshooting guidance.
A complete guide to deploying Immich on Docker—automatic phone backup, face recognition, smart search, and full control of your photo library. Self-hosted Google Photos that actually works.
A complete engineer guide to upgrading Catalyst 9000 series switches on IOS-XE: converting from Bundle Mode to Install Mode, running ISSU on StackWise stacks, applying targeted SMU patches, and maintaining a golden image across your fleet.
A practical guide to DDR5 RAM speeds, capacity, and kits for gaming in 2026. Covers DDR5-6000 as the sweet spot, XMP 3.0 and EXPO profiles, AMD vs Intel platform differences, and the best kits from G.Skill, Corsair, and Kingston.
A practical deep dive into Spanning Tree Protocol and RSTP on Cisco IOS-XE. Covers root bridge election, PortFast, BPDU Guard, Root Guard, Loop Guard, Bridge Assurance, TCN storm troubleshooting, and Catalyst 9000 gotchas with real show command output.
A complete hands-on guide to configuring MPLS L3VPN on Cisco IOS-XE — from LDP label distribution and VRF definitions to BGP VPNv4 peering, PE-CE routing options, and VRF route leaking, with real CLI examples and show command output throughout.
BGP communities let you attach policy metadata to routes across your entire network. This guide covers standard, extended, and large communities on Cisco IOS-XE — with real CLI examples for tagging, filtering, RTBH blackholing, and a complete dual-homed enterprise policy configuration.
A sharp technical breakdown of how ZK-rollups work, where the major zkEVMs stand in 2026, what it actually costs to transact on each, and why this matters for every serious DeFi participant.
