Updating timezone data in Data Loss Prevention JRE software, corrects for cancellation of Brazil DST

Products

• Data Loss Prevention Enforce
• Data Loss Prevention
• Data Loss Prevention Network Monitor
• Data Loss Prevention Network Email
• Data Loss Prevention Network Discover
• Data Loss Prevention Endpoint Suite
• Data Loss Prevention Endpoint Prevent

Issue/Introduction

Earlier this year, the government of Brazil canceled its plan to observe Daylight Savings Time (DST) beginning in November of 2019.  This change potentially affects timestamp information in Data Loss Prevention 15.5 and previous versions, as the JRE version for use with DLP does not account for the change in Brazil's DST observance.

To address this issue, Data Loss Prevention administrators can update the Time Zone Database file with a file that has the latest timezone information for Brazil and for other locations around the world. This article provides instructions for updating the Time Zone Database file in the JRE software.

Symantec recommends this procedure for customers in Brazil in particular.

Resolution

To update the Time Zone Database file in the JRE software used by Data Loss Prevention, follow the steps for your operating system platform as provided in this section.

Instructions for Windows Enforce and Detection Servers

1. Stop DLP Services.
2. Download the Java SE Timezone Updater Tool from https://www.oracle.com/technetwork/java/javase/downloads/tzupdater-download-513681.html. Download the file to an easily accessible directory, such as c:\temp.
3. Download the tzdata2019c-rearguard.tar.gz file that is attached to this article. Download to the same directory where you downloaded the Timezone Updater Tool in step 1.
4. Unzip the Timezone Updater Tool.
5. Change directory to the JRE bin location. On Windows, this is typically in c:\Program Files\Symantec\DataLossPrevention\ServerJRE\1.8.0_181\bin.
6. Run the following command: C:\Program Files\Symantec\DataLossPrevention\ServerJRE\1.8.0_181\bin>java -jar C:\temp\tzupdater.jar -l file:///c:/temp/tzdata2019c-rearguard.tar.gz
7. Restart DLP Services.

Instructions for Linux Enforce and Detection Servers

1. Stop DLP Services.
2. Download the Java SE Timezone Updater Tool from https://www.oracle.com/technetwork/java/javase/downloads/tzupdater-download-513681.html. Download the file to an easily accessible directory, such as /opt/temp.
3. Download the tzdata2019c-rearguard.tar.gz file that is attached to this article. Download to the same directory where you downloaded the Timezone Updater Tool in step 1.
4. Unzip the Timezone Updater Tool.
5. Change directory to the JRE bin location. On Linux, this is typically in /opt/Symantec/DataLossPrevention/ServerJRE/1.8.0_181/bin.
6. Run the following command as root: java -jar /opt/tmp/tzupdater.jar -l file:///opt/tmp/tzdata2019c-rearguard.tar.gz
7. Restart DLP Services.