NetFix Lab
Networking knowledge comes alive when you put it to work.
A safe place to get
your hands on the problem.
NetFix Lab is an interactive network troubleshooting platform for students, helpdesk technicians, network engineers, and MSP teams. Investigate realistic failures, inspect devices, run diagnostic commands, and verify the repair yourself.
Try the DNS challengeBuilt for the student I once was.
Zakaria Chahir on the dream, the missing resources, and the mission behind NetFix Lab.
Follow the network
Explore an interactive topology of workstations, switches, routers, and servers. Device configuration and diagnostic results share the same simulated state.
Diagnose, don’t guess
Practice IP configuration checks, ping, DNS queries, and route tracing in a deterministic Windows-style terminal.
Entirely simulated
All addresses and domains are synthetic training data. No command executes on your computer or connects to a live network. Progress stays in this browser.
DNS, DHCP, VLAN, firewall, and VPN labs are playable.
Troubleshoot route-based IPsec, compare traffic selectors, and restore connectivity between two simulated offices.