What user is running the Symantec DLP software on RHEL?
If the service is presently running, you can find the user with the below command
grep `ps -eo "%U %c" | grep SymantecDLP | awk '{print substr($1,1, length($1)-1)}'` /etc/passwd
Alternatively, you can see from the config file which user the services will run as after service start
grep 'RUN_AS_USER=' /etc/init.d/SymantecDLPDetectionServerService