Configure a Leopard client for an Apple Software Update server
November 10, 2008 10:08 am Mac Tips
To configure a Mac running OS X 10.5 (Leopard) to connect to a local Apple Software Update server, simply use the following command, where servername is the name of your local server that runs Software Update. If you have any problems, verify that you can see the update server by accessing the following URL from the client’s web browser: If you don’t see an XML-type page come up, you should verify that the Software Update service is running on the server, and that port 8088 is properly configured to allow traffic on your network.defaults write /Library/Preferences/com.apple.Softwareupdate CatalogURL http://servername:8088/http://servername.domain.com:8088/index.sucatalog

Configure Leopard for a different Software Update Server « Tech Tidbits :
Date: December 3, 2008 @ 4:41 pm
[...] 3 Dec 2008 by Gus via neverblog.net To configure a Mac running OS X 10.5 (Leopard) to connect to a local Apple Software Update server, [...]