How to Setup a VPN
Solutions for keeping remote users connected to Exchange Server have traditionally centered around using Outlook Web Access. However, there is no reason why your remote users can't connect to your Exchange organization using a Virtual Private Network (VPN).A virtual private network (VPN) is a communications network tunneled through another network, and dedicated for a specific network. One common application is secure communications through the public Internet, but a VPN need not have explicit security features, such as authentication or content encryption. VPNs, for example, can be used to separate out the traffic of different user communities over an underlying network with strong security features.
A VPN may have best-effort performance, or may have a defined Service Level Agreement (SLA) between the VPN customer and the VPN service provider. Generally, a VPN has a topology more complex than point-to-point. The distinguishing characteristic of VPNs are not security or performance, but that they overlay other network(s) to provide a certain functionality that is meaningful to a user community.
In case you aren't familiar with VPN technology, a VPN is a logical, secure connection across an insecure network, such as the Internet. Remote users can use their existing Internet connections to securely connect to your network, just as if they were in the office.
Better still, VPN technology is Exchange-independent. This means your remote users can use your VPN connection to access Exchange Server regardless of the version, and can also access other network resources.
VPN technology is extremely useful in organizations with a lot of remote users, but it can be somewhat complicated to set up. This guide will walk you step-by-step through the process.
We will tell how to setup a Broadband Router that has IPSec VPN capabilities for secure remote access to your home network from anywhere on the Internet. Detailed configuration will be shown for multiple brands of routers. The VPN IPSec client will be SSH-Sentinel since it is free for non-commercial use.
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