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Wednesday, March 10, 2010

SSL configuration on clustered environment of Exchange 2007 server

By default, Exchange 2007 server is SSL enabled and to disable the SSL settings are very simple. If you want to disable the SSL settings of Exchange server, one can go through one of our post s which describe how to disable the SSL configurations from Exchange 2007 server.

In order to describe the SSL configuration on Exchange 2007 server on clustered environment, it is not an easy for one because in clustered environment Exchange server does have distributed servers for managing the request.

First of all, one would like to describe the clustered environment of Exchange server which have CAS servers, Edge transport servers (ETS), Hub transport servers (HTS), Active directory servers, Exchange mailbox server clusters and public folder cluster.

Basically, when one create any request for Exchange server, the request comes at CAS (Client Access Server (OWA)) servers  first and through ETS and HTS, Exchange server passes the request to Mailbox server clusters and provide access for Mailbox resources.

Now, one is taking a scenario or you can say requirement. The requirement is, one do not want to configure SSL on Exchange mailbox clusters. One wants to configure the SSL for CAS servers since these servers handle the client requests.

In this case, one makes all CAS servers SSL enabled and disabled the SSL settings on Mailbox server clusters since Exchange is SSL enabled by default. Now, when request sent by the client for Exchange server, it handle firstly from CAS servers which all should be SSL enabled, then pass the request to Mailbox server clusters for accessing mailbox resources.

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