You need assistance in upgrading to 15.5 MP2 in redhat.
redhat
Download: Symantec_DLP_15.5_MP2_Platform_Lin-IN_15.5.0200.01034.zip
cd Downloads
chmod 777 Symantec_DLP_15.5_MP2_Platform_Lin-IN_15.5.0200.01034.zip
cp Symantec_DLP_15.5_MP2_Platform_Lin-IN_15.5.0200.01034.zip /tmp/Symantec_DLP_15.5_MP2_Platform_Lin-IN_15.5.0200.01034.zip
cd /tmp
Unzip file: unzip Symantec_DLP_15.5_MP2_Platform_Lin-IN_15.5.0200.01034.zip
cd DLP/15.5MP2/New_Installs/x64/Release/
mkdir DetectionMP2
cd DetectionMP2
unzip ../DetectionServer.zip
rpm --nopreun --nopostun -Uvh *.rpm
reboot server
Log in to enforce console and verify upgrade is complete