Remote access systems, such as Microsoft Remote Desktop Connection, Virtual Network Computing (VNC) and similar...
products, allow you to connect to a computer over the network and manipulate it with your mouse and keyboard as if you were sitting at the computer. When you connect to the remote system, you will be prompted to enter your username and password before gaining access.
Many enterprises use these two technologies in tandem for security reasons. Users who wish to make remote access connections to use computers on the corporate network must first connect to the VPN and then establish the remote access connection. This strategy prevents unknown Internet users from directly attempting unauthorized remote access connections, providing an added layer of security.
Dig Deeper on Network Access Control technologies
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