Microsoft 70-647 Exam Answer: A Explanation: To ensure that mobile users are allowed to access WSS from the Internet by using their Windows Mobile devices securely and to ensure that all the connections from the Internet to WSS are encrypted, you need to use external Firewall solution by using Microsoft Internet Security and Acceleration ISA Server 2006 and create a HTTPS publishing rule on ISA Server. The Firewall will ensure a secure connection to the internal network of the company. When you publish an application through ISA Server 2006, you are protecting the server from direct external access because the name and IP address of the server are not accessible to the user. The user accesses the ISA Server computer, which then forwards the request to the server according to the conditions of the server publishing rule. When you create a secure Web publishing rule, you can configure how SSL requests will be redirected as Hypertext Transfer Protocol (HTTP) requests or as SSL requests. Reference: Deploying Office SharePoint Server 2007 with ISA Server 2006 / No direct access to the server from the Internet http://technet.microsoft.com/en-us/library/cc268368.aspx
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