Restrict clients to a specific Remote Desktop Task Server
You can restrict clients to take instructions only from a specified Task Server. To do so, you use the command-line to add a plist key entry to a preference file on each client. The plist key value is the Network ID (MAC address) of the en0 interface of the Task Server.
To execute the command-line tool, you can:
Use an SSH session to the client computer
Use Terminal on the client computer
Use the Send UNIX Command from Remote Desktop
Execute the command-line tool as root or using
sudo. If you use the Send UNIX Command as root,
sudo isn’t necessary.
In the Terminal app , enter the following command to create the plist entry:
sudo defaults write /Library/Preferences/com.apple.ARDAgent ServerWhiteList -array <en0>
Replace en0 with the en0 Network ID of the Task Server (no spaces, dashes, or other punctuation in it).
Enter the following command to add additional Task Servers to the plist entry:
sudo defaults write /Library/Preferences/com.apple.ARDAgent ServerWhiteList -array-add <en0>
Replace en0 with the en0 Network ID of the Task Server.