You would like to configure Symantec Protection Engine (SPE) to get updates from an internal LiveUpdate Administrator (LUA) server by using XMLModifier to update the LiveUpdate.xml
To configure Symantec Protection Engine (SPE) to get update from Internal LiveUpdate server
On Windows computers, the default location for the Liveupdate.xml is:
On Solaris and Linux computers, the default location for the Liveupdate.xml file is /opt/SYMCScan/bin/
Note: Make a backup of the Liveupdate.xml before you make any changes.
XMLModifier.exe -s //liveupdate/UpdateServer/Server/@value "<ip address or hostname>" liveupdate.xml
Allowed values: IP address or Hostname of the internal LiveUpdate Server
XMLModifier.exe -s //liveupdate/UpdateServer/Port/@value 7070 liveupdate.xml
Allowed Value: The designated port for the LiveUpdate Server Definitions Content
XMLModifier.exe -s //liveupdate/UpdateServer/Path/@value "clu-prod" liveupdate.xml
Allowed Value: Path to the LiveUpdate Server Definitions Content
XMLModifier.exe -s //liveupdate/UpdateServer/UserName/@value "Domain\Account" liveupdate.xml
Allowed Value: Define the account that will have access to the LiveUpdate Server content
XMLModifier.exe -k //liveupdate/UpdateServer/Password/@value "Password" "C:\Program Files\Symantec\Scan Engine" liveupdate.xml
Allowed Value: Password to access the LiveUpdate Server content
Note: The password will be encrypted and stores in specified path "C:\Program Files\Symantec\Scan Engine"
Note: Restart Symantec Protection Engine service after updating Liveupdate.xml
To force the engine to immediately try to update virus definitions create a file with the following name and drop it in "C:\Program Files\Symantec\Scan Engine"
LUNowFlag
Within 10 seconds the file should disappear. Check to see if the definitions updated. If they do not examine the last entries of the file "C:\Program Files\Symantec\Scan Engine\Definitions\Stargate\logs\lux.log" for an explanation.
Normally you will see something similar to the following indicating success:
09:58:06.815821 [Inventory Synchronization - END]
09:58:06.815821 [Server Selection - START]
09:58:06.863562     Result Code: 0x00010000
09:58:06.863562     Result Message: OK
09:58:06.863562     [Server - START]
09:58:06.863562         Host ID: [REMOVED BY AUTHOR]
09:58:06.863562         Status Code: 2
09:58:06.863562         Status Message: Server was selected
09:58:06.863562         Protocol: HTTP
09:58:06.863562         Hostname: 192.0.2.207
09:58:06.863562         Port: 7070
09:58:06.863562         Path: /clu-prod
09:58:06.863562         Proxy ID: {00000000-0000-0000-0000-000000000000}
09:58:06.863562         Proxy Bypass: false
09:58:06.863562     [Server - END]
09:58:06.863562     Used proxy list was empty
09:58:06.863562 [Server Selection - END]
09:58:06.863562 [Check for Updates - START]
09:58:06.950182     Result Code: 0x00010000
09:58:06.950182     Result Message: OK
09:58:06.950182     Component Status Changes:
09:58:06.950182         None
09:58:06.950182     [Component - START]
09:58:06.950182         Component ID: {CD657291-9FEB-46FD-8F22-4A67F2F0D3BE}
09:58:06.950182         Available Updates: 1
09:58:06.950182         [Package - START]
09:58:06.950182             Item: Virus Definitions
09:58:06.950182             Description: Norton AntiVirus Definitions
09:58:06.950182             File: 1694549928jtun_sgwinoennful.7z
09:58:06.950182             Reboot Flag: false
09:58:06.950182             Sequence Name: CurDefs
09:58:06.950182             Sequence Number: 230912019
09:58:06.950182         [Package - END]
09:58:06.950182     [Component - END]
09:58:06.950182 [Check for Updates - END]
09:58:06.950182 [Package Download - START] 
09:58:06.950182     Component: {CD657291-9FEB-46FD-8F22-4A67F2F0D3BE}
09:58:06.950182     File: 1694549928jtun_sgwinoennful.7z
09:58:10.777137     Result Code: 0x00010000
09:58:10.777137     Result Message: OK
09:58:10.777137 [Package Download - END]
09:58:10.777137 [Package Decompression - START]
09:58:10.777137     Component: {CD657291-9FEB-46FD-8F22-4A67F2F0D3BE}
09:58:10.777137     File: 1694549928jtun_sgwinoennful.7z
09:58:21.293734     Result Code: 0x00010000
09:58:21.293734     Result Message: OK
09:58:21.293734 [Package Decompression - END]
09:58:21.293734 [Initialize Package Installs - START]
09:58:21.293734     Result Code: 0x00010000
09:58:21.293734     Result Message: OK
09:58:21.293734     Component Status Changes:
09:58:21.293734         None
09:58:21.293734 [Initialize Package Installs - END]
09:58:21.293734 [Package Install - START]
09:58:21.293734     Component: {CD657291-9FEB-46FD-8F22-4A67F2F0D3BE}
09:58:21.293734     File: 1694549928jtun_sgwinoennful.7z
09:58:21.293734     Action Item: SGWinFRes.dis
09:58:21.434364     Result Code: 0x00010000
09:58:21.434364     Result Message: OK
09:58:21.434364 [Package Install - END]
09:58:21.434364 [Finalize Package Installs - START]
09:58:24.793709     Result Code: 0x00010000
09:58:24.793709     Result Message: OK
09:58:24.793709     Component Status Changes:
09:58:24.793709         None
09:58:24.793709 [Finalize Package Installs - END]
09:58:24.793709 [Finalize Session - START]
09:58:24.793709     Result Code: 0x00010000
09:58:24.793709     Result Message: OK
09:58:24.793709     Component Status Changes:
09:58:24.793709         None
09:58:24.793709 [Finalize Session - END]
09:58:24.824995 [Session Results - START]
09:58:24.824995     Session Result Code: 0x00010000
09:58:24.824995     Session Result Message: OK
09:58:24.840588     [Component Result - START]
09:58:24.840588         Component ID: {CD657291-9FEB-46FD-8F22-4A67F2F0D3BE}
09:58:24.840588         Display Name: Stargate Definition
09:58:24.840588         PVL: Stargate-SPEforNAS 1.0 Definitions for x64-windows_MicroDefsB.CurDefs_SymAllLanguages
09:58:24.840588         Result Code: 0x00010000
09:58:24.840588         Result Message: OK
09:58:24.840588         [Package Result - START]
09:58:24.840588             File: 1694549928jtun_sgwinoennful.7z
09:58:24.840588             Result Code: 0x00011003
09:58:24.840588             Result Message: UNKNOWN
09:58:24.840588         [Package Result - END]
09:58:24.840588     [Component Result - END]
09:58:24.840588 [Session Results - END]
09:58:24.840588 [Session Summary - START]
09:58:24.840588     Components: 1
09:58:24.840588     Packages:   1
09:58:24.840588     Success:    1
09:58:24.840588     Fail:       0
09:58:24.840588 [Session Summary - END]