DirectAccess – Installation – Configuration in Windows Server 2016/2019


Windows Server 2012R2 Windows Server 2016 Windows Server 2019

DirectAccess is a feature available with the Remote Access role, which allows you to set up an automatic connection solution to the corporate network for mobile computers or for small remote sites.

Unlike a VPN, the connection is initiated directly by a service on the remote computer, which allows for similar behavior if the workstation is in the corporate network:

  • Applying group policies.
  • Ability to open another user session in the Active Directory.

DirectAccess also has two other benefits that are:

  • The automatic connection without manipulation on the part of the user.
  • The ability to force internet traffic through the corporate network which allows to apply the rules of web filtering (proxy).

DirectAccess relies on the IPv6 protocol for communication between the corporate network and the customer.

Before establishing the connection, the client tests access to a probe to find out if it is in the company network or outside.

For DNS resolution, a Group Policy configures the NRPT table so that the computer when it is connected to the corporate network sends the requests from the local domain to the DirectAccess server.

It is possible to increase the security of connections by identifying computers with a certificate.

In this tutorial, we will see how to deploy DirectAccess with a server with a single network card behind a firewall.

DirectAccess deployment

This tutorial can also be used to deploy DirectAccess with Windows 2012R2

To work you have to make the server accessible from the Internet by correctly configuring the NAT / PAT.

Documentation Microsoft : https://docs.microsoft.com/fr-fr/windows-server/remote/remote-access/directaccess/directaccess



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