Location of the liveupdate.conf
     Windows Server
           <Drive>:\Program Files\Symantec\Scan Engine
            OR
           <Drive>:\Program Files (x86)\Symantec\Scan Engine

On a Windows server running Scan Engine the liveupdate.conf will look like this.

Note: Use a editor to open and edit the file.

Example:

# LiveUpdate.conf

cacheMode=false
downloadCachesize=5368709120
maxPackageContentSize=2147483647
maxPackageSize=2147483647
 

To configure the Scan Engine to use the liveupdate.conf file because the customer has a proxy server that they use to connect to the Internet, this is what is necessary to be present in the liveupdate.conf file.

1. Browse to the directory where the liveupdate.conf file exist.
2. Use a editor like notepad to open the file.
3. Add these lines to the liveupdate.conf file.
   
   hosts/0/url=http://liveupdate.symantecliveupdate.com:80/
   hosts/1/url=http://liveupdate.symantec.com:80/
   
   Note: Where <IP address> replace it with the IP address of the proxy server. Where <Port Number> replace it with Port Number that the proxy server uses. Now if the proxy server uses a username or password then fill it in.  If it does not then 'proxyusername' and 'proxypassword' can be omitted. 
   
   proxy=<IP address>:<Port Number>
   proxyusername=<username>
   proxypassword=<password>
   
   logfile=<The path to where the Java LiveUpdate folder exist>
   
   Example on Windows 2003 box: C:\Documents and Settings\All USers\Application Data\Symantec\Java LiveUpdate\liveupdt.log
   
   Example on Windows 2008 or Window 2012 box: C:\ProgramData\Symantec\Java LiveUpdate\liveupdt.log
   
   workdir=<The path to where the \Java LiveUpdate\Downloads folder exist>
   
   Example on Windows 2003 box: C:\Documents and Settings\All USers\Application Data\Symantec\Java LiveUpdate\Downloads
   
   Example on Windows 2008 or Windows 2012 box: C:\ProgramData\Symantec\Java LiveUpdate\Downloads

Here is a example of how it should look when you have add the necessary lines.

Example on a Windows 2003 box:

# LiveUpdate.conf
hosts/0/url=http://liveupdate.symantecliveupdate.com:80/
hosts/1/url=http://liveupdate.symantec.com:80/
cacheMode=false
downloadCachesize=5368709120
maxPackageContentSize=2147483647
maxPackageSize=2147483647
proxy=<IP address>:<Port Number>
proxyusername=<username>
proxypassword=<password>
logfile=C:\Documents and Settings\All USers\Application Data\Symantec\Java LiveUpdate\liveupdt.log
workdir=C:\Documents and Settings\All USers\Application Data\Symantec\Java LiveUpdate\Downloads

Example on a Windows 2008 or Windows 2012 box:

# LiveUpdate.conf
hosts/0/url=http://liveupdate.symantecliveupdate.com:80/
hosts/1/url=http://liveupdate.symantec.com:80/
cacheMode=false
downloadCachesize=5368709120
maxPackageContentSize=2147483647
maxPackageSize=2147483647
proxy=<IP address>:<Port Number>
proxyusername=<username>
proxypassword=<password>
logfile=C:\ProgramData\Symantec\Java LiveUpdate\liveupdt.log
workdir=C:\ProgramData\Symantec\Java LiveUpdate\Downloads

restart the Protection Engine service after saving the file.