Systems Manager Sentry VPN security: Configuration settings for whether devices enrolled in systems manager should receive a configuration to connect to the client VPN (see the Systems Manager Sentry VPN security section below).Authentication: How VPN clients will be authenticated (see below).
Shared secret: The shared secret that will be used to establish the client VPN connection.WINS server: If VPN clients should use WINS to resolve NetBIOS names, select Specify WINS Servers from the drop-down and enter the IP addresses of the desired WINS servers.
Choose from Google Public DNS, OpenDNS, or specify custom DNS servers by IP address.