Hello,
You might also want to check this best practices guide
http://www.symantec.com/business/support/index?page=content&id=TECH164224&profileURL=https%3A%2F%2Fsymaccount-profile.symantec.com%2FSSO%2Findex.jsp%3FssoID%3D1397097227511ZZ64l9EPYZjKtJ1A4t9sDHU4bmNZ4517n246m
Best Regards,