Deploying a secure Lync Edge
Lync Edge is a role that makes Lync services available to external users and companies in a secure manner. A Lync Edge Server is not part of the internal domain, and in general, it is deployed in a Demilitarized Zone (DMZ) network with a series of limitations (for example, usually, the name resolution of the Lync Servers in the internal network is limited to local hosts file). The previously mentioned restrictions and other security features, however, are not enough to defend the server from some kind of Internet threats including Distributed Denial-of-Service (DDoS) and brute-force attacks. An extremely powerful instrument we have at our disposal to protect our Lync deployment is the Microsoft SIP Processing Language ...
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