Question How to redirect a Macintosh client to a local Software Update Server.
Updating preference settings to allow a client to use a local Software Update Server
There are three options, depending on which user(s) and which tool (GUI or command line utility) that should be affected. Note that the port specification is required only if your update server uses a port other than the default port(s).
1.To update the preference setting for the local user (who is running the command). This method only affects the GUI Software Update tool.