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Firewalls and Network Segmentation in Plain Language

Why guest Wi-Fi should never touch your finance VLAN.

· Fraittech, Nanyuki

Network server lights
Stock image via Unsplash (license: Unsplash License).

Why guest Wi-Fi should never touch your finance VLAN.

Key takeaways

Deeper dive

Firewalls filter traffic between zones; segmentation limits how far an attacker moves after one mistake. Guest Wi-Fi, staff PCs, servers, and cameras should not share a flat network.

Log denied connections and review monthly; noise is high at first but patterns reveal misconfigurations early.

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