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When upgrading to the latest version of Liferay Portal, there are many things to take into account. This guide is designed to assist in the upgrading process. Please read and ensure...

Apache Struts 1 Known Vulnerabilities

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QUESTION: How are Liferay DXP 7.0 and 7.1, and Liferay Portal, affected by the following vulnerabilities? CVE-2016-1181: Arbitrary code execution, denial of service CVE-2016-1182: XSS and denial of service...

SQL Exception Warnings Appear During DXP Upgrade Indicating 'Fallback to recreating the table'

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This article documents a false negative warning message that can occur when upgrading your Liferay platform, and which has caused some confusion amongst our users. During the Liferay DXP upgrade process, several WARN...

Fix Pack and Hotfix installation order on Liferay Portal EE

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The order of fix pack and hotfix updates are determined by engineering in several ways. This order is hardcoded in the update. Environment Versions previous to Portal 6.2 SP11...

Inputting Initial S3 Configuration Settings on DXP 7.0

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This article serves as a reference for how to configure Liferay Digital Experience Platform (DXP) to use Amazon Web Services S3. DXP users can leverage Amazon S3 in two key areas; to serve as a file store repository,...

Update Manager gives plugin update reminders for up to date plugins

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This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. This article documents a known issue where...

System-ext.properties Reference Guide

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This article serves as a reference guide for how to set system wide properties through the system-ext.properties file. Similar to the relationship between the portal.properties and portal-ext.properties files,...

Creating a Backup/Disaster Recovery Environment for Liferay Portal

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This article gives an overview of a backup/disaster recovery environment that is necessary when starting a Liferay Portal project. This backup will often be referenced by Liferay Support Engineers as it is...

Issues With Setting Time Zone Settings on the JVM Level

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Liferay Support does not recommend or endorse specific third-party products over others. Liferay is not responsible for any instructions herein or referenced regarding these products....

Apache Tomcat Security Advisory: CVE-2018-1336

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General Information CVE-2018-1336 reports that, "an improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service." This...

Setting Up Liferay Portal on a DB2 Database

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This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. This article outlines steps on how to setup...

Moving Existing Data From an Old Liferay bundle to a New One

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This article provides a checklist when you move your existing data from an old Liferay environment to a new one. Resolution For database, please backup the database in old environment and import it to the new environment....

Using the Data Migration Tool in Liferay DXP 7.1

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This article documents how to use the data migration tool in the Server Administration section of Liferay Digital Experience Platform (DXP) 7.1. The Data Migration Tool allows administrators to migrate data quickly...

Upgrading to Liferay Portal 6.0 EE SP1

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When upgrading to the latest Liferay Portal, there are many things to take into account. This guide is designed to assist in the upgrading process. Please read and ensure your...

Liferay Information for Common Application Servers

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This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. Resolution...

Document versioning won't display versions after 1.9 is entered

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This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. Upon...

Avoiding a Batch Error When Defining Friendly URLs

legacy Troubleshooting

This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. If you...

Stopping Liferay DXP 7.0 LPKG Modules

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This article documents which LPKG files can be disabled with little or no negative effects as part of Liferay's introduction of modularity in Liferay DXP 7.0. Because certain core functionalities have been turned into...

Understanding Languages in Liferay Portal

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Liferay Portal is designed to handle as many languages as you want to support. This is done by pulling out all language specific text and storing it in the language.properties files....

Liferay DXP Javadocs

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For developers, Liferay has created a set of documentation (Javadocs) that provide API and code detail for working with Liferay DXP's core software. To access the Javadocs, follow either one of the following...

Deploying Plugins via Administration Console

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This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. There are multiple application servers...

Anonymizing Data

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Preserving anonymity of users when providing data to Liferay may be a concern for certain use-cases. The following guidelines should assist in determining which data should be anonymized and finding...

Managing Time Zones in DXP 7.0

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This article documents how to change the time zone in your Liferay DXP 7.0 environment. Given that users are working with the Liferay platform from all over the world, it is important to have the ability to change...

Too Many CPU Intensive Tasks: A Common Performance Issue in DXP 7.0

legacy Troubleshooting

This article documents a common performance issue related to running Too Many CPU Intensive Tasks within Liferay DXP 7.0. Continue reading to discover the necessary information about this issue and how to...

Setting Up the Liferay Platform on AWS EC2

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This article is a guide to help users set up, install and cluster Liferay DXP 7.0 or 7.1 on AWS Elastic Compute Cloud (EC2). Resolution EC2 Instance Set Up There are 2 kinds of EC2 instances: (1)...

Thread Contention: A Common Performance Issue in DXP 7.0

legacy Troubleshooting

This article documents a common performance issue related to Thread Contention within Liferay DXP 7.0. Read below for the necessary information about this issue and how to navigate through it. Resolution...

Virtual Host Quick Guide

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The official Apache Virtual Host Documentation states: The term Virtual Host refers to the practice of running more than one web site (such as company1.example.com and company2.example.com) on a single machine....

Upgrading to Liferay Portal 6.2 EE

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For many customers, upgrading your Liferay platform can be a significant step forward for users, administrators and developers. Not only does an upgrade provide you with the “latest...

Insufficient Resources: A Common Performance Issue in DXP 7.0

legacy Troubleshooting

This article documents a common performance issue related to Insufficient Resources within Liferay DXP 7.0. Read below for the necessary information about this issue and how to navigate through it. Resolution...

Removing '/web/' From Auto-Generated URLs

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This article documents how the Liferay platform will automatically generate URLs appended with /web/, which can also be changed to a friendly URL. This may be an issue for those who do...

Common Causes for the Properties in the 'portal-ext.properties' Not Taking Effect

legacy Troubleshooting

This article documents the circumstances for when properties in the portal-ext.properties are not working correctly. This article also discusses common causes for the properties in the portal-ext.properties not...

Deploying the Liferay Platform on WebSphere Network Deployment Edition

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This article documents how to deploy Liferay Portal 6.2 or Liferay DXP (7.0 or 7.1) on WebSphere Application Server with Network Deployment (commonly abbreviated ND). The Network Deployment Edition is a tool that...

Upgrading to Permission Algorithm 6

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This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable. Permission algorithm 5 was used as the default...

Setting Up the Liferay Platform on Microsoft Azure

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This article outlines what Microsoft Azure is, how to create a Virtual Machine (VM) to run on the Liferay platform and how to configure the Liferay platform with Azure. Resolution What is Azure? Microsoft Azure is a...

Installing Fixes That Involve Updates to Database Tables

legacy Troubleshooting

We understand that some customers have security policies which compel them to use the Liferay platform to connect to the database as a user that does not have elevated privileges; privileges to change the...

Migrating File System Stores

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This article documents how to use the Data Migration tool in the Server Administration section of Liferay DXP 7.0. The Data Migration Tool allows administrators to migrate data quickly between Documents and Media...

Checklist for Upgrading to Liferay DXP

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Upgrading to Liferay DXP (7.0, 7.1, 7.2, or 7.3) is a major project and requires careful planning, testing and execution in order to be successful. However, Liferay DXP and DXP Cloud...

Modifying Cache Size, Time To Live and Replication in DXP 7.0

legacy How To

This article documents how to work with your cache in Liferay DXP 7.0, in order to modify its size, time to live (TTL) and replication. Resolution Modify Default Cache Sizes and Entry TTLs A potential source of...

Disabling OSGI Components for DXP

legacy How To

This article documents how to temporarily disable an OSGI component via Gogo Shell, and how to add a component to the blacklist in order to disable it permanently. We will use the WebDAV component as an example. Resolution...

Installing DXP on IBM DB2 v.10.5

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This article documents steps on how to start Liferay DXP on IBM DB2 10.5. Resolution Creating a Database Start DB2 Command Line Process Plus. Enter the following: create database dxp pagesize 32768 USING CODESET UTF-8...

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