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VPN basics

Compare architecture first; measure any claimed improvement second.

Write down the permitted destination and expected return path.

Ask what remains visible after the tunnel ends.

Treat maintenance and recovery as part of the design.

One device should have one identifiable, revocable peer identity.

Bring the client, destination, and identity model to the same planning session.

A supported client combination matters more than a generic platform badge.

Test a removed identity before onboarding the whole team.

Check the name, returned address, port, and application in that order.

A private address is not a complete authorization policy.

Map prompt storage and tool permissions separately from the tunnel.

Draw the packet path and payment path as different diagrams.

An unfavorable result is still useful evidence.

Choose message protections first; add a tunnel for a specific network need.