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Infra

Infra illustration
Everything below the application layer: routing and switching, security (VPN, identity, certificates), containers and Kubernetes. Most of it is written against Cisco, Juniper, Fortinet, UniFi and the Rancher family, because that is what is in front of me.
Routing3BGP and OSPF cheat sheets and a dual-homed BGP design with OSPF. Switching1Layer-2 notes: VLANs, trunks, spanning tree. Security3VPN, Cisco ISE and certificate notes. Docker1Container notes: images, volumes, networking, compose. Kubernetes2K3s and RKE2 high-availability cluster builds.