Paths
A guided order through the catalog. Pick a destination and solve the challenges in sequence; each one builds on the last, and every step still earns its own verified proof.
Routing fundamentals
From your first static route to BGP policy at the edge, in the order the skills build.
9 challenges~6 h
Network security basics
Lock down hosts, write real ACL policy, and finish by catching attacks in logs.
8 challenges~5 h
Road to DevOps
From running one service properly to CI, containers, Kubernetes, and Terraform.
9 challenges~4 h
Troubleshooting drills
Nine broken networks. Diagnose from symptoms to root cause, ending with a full outage.
9 challenges~8 h