Changing the package codebase of your Altiris Symantec Management Platform

This can become handy when your clients can’t resolve the Full Qualified Domain Name (FQDN)
By default, during the installation of the Symantec Altiris Notification Server, SIM (Symantec Installation Manager) populates this regkey with whatever server name you selected during the configuration page during the initial installation, which usually is the Full Qualified Domain Name (FQDN). So, in order to modify the preferred Notification Server hostname for SWD codebase and snapshot URLs, you need to do the following:

• Open the Registry Editor (Open the RUN prompt and type regedit and click OK)
• Go to HKLM>Software>Altiris>eXpress>Notification Server and open the PreferredNSHost regkey.
• Modify the PreferredNSHost regkey by adding the NetBIOS, FQDN, or IP Address that you want to use for SWD codebases and snapshot URLs.
• Restart the Altiris Service
• Then go to Control Panel>Scheduled Tasks and run the NS.Package Refresh schedule (by default it runs everyday at 3:30am). By running this schedule, the SWD codebases and snapshot URLs should be updated.

Note: If for some reason the PreferredNSHost regkey is not present but there is the reference of it on the coreSettings.config, just recreate the regkey. Create a String Value and call it 'PreferredNSHost'.
Additional Note: Do not add ports to the PreferredNSHost setting (such as nsServer:5814 or 10.x.x.x:5484). Adding a port will cause the NS.PackageRefresh to FAIL
http://www.symantec.com/docs/HOWTO10091