Protecting the Edge Server Against DoS and Password Brute-Force Attacks in Lync Server 2010

Companies that allow employees to remotely sign in to Microsoft Lync Server 2010 communications software from the Internet can be susceptible to denial-of-service (DoS) and brute-force attacks. Both types of attacks involve guessing users’ passwords or locking out user accounts when too many incorrect password attempts are made to a valid Active Directory Domain Services…

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Split-Brain Domain Name Services for Communications Server

There is much to think about in the design of your network perimeter for Office Communications Server-several services are offered in the perimeter network through the Edge Servers. The primary goal when implementing a split-brain DNS solution is to provide a near total disassociation of the internal DNS servers and the perimeter DNS servers. This…

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Protecting the Edge Server Against DoS and Password Brute Force Attacks in Office Communications Server

Companies that allow employees to sign in to Office Communications Server remotely from the Internet can be susceptible to denial-of-service (DoS) and brute-force attacks. These kinds of attacks involve guessing users’ passwords or locking users out of their accounts when too many incorrect password attempts are made to a valid Active Directory user account when…

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