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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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Firewall Ports

Connectivity to an Edge Server or reverse proxy can be limited by firewalls and tricky to troubleshoot because the connections generally cross a few network boundaries. See Chapter 12, “Firewall and Security Requirements,” or Chapter 27 for detailed firewall information. Check firewalls between remote clients, Edge Servers, and internal servers. Also, check whether the Windows Firewall are blocking connections.

→ For a more detailed explanation of firewall scenarios and requirements, see Chapter 27.

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