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Enabling Optimization of Animated GIFs
Official Documentation
Enabling Optimization of Animated GIFs To scale animated GIFs, Adaptive Media uses an external tool called Gifsicle. If Gifsicle isn't installed and image/gif is included as a supported MIME type,...
Configuring External Services
Official Documentation
Configuring External Services Liferay provides integration with external services for converting files and generating file previews. Three of these services can be enabled in the Server...
Web Application Firewall
Official Documentation
Web Application Firewall Liferay Cloud 5.x.x Liferay Cloud includes a web application firewall called ModSecurity. It inspects requests sent to the web server against a predefined set of custom...
Virtual Instances
Official Documentation
Virtual Instances Liferay DXP can host multiple portals on one installation. These are called virtual instances. Each virtual instance has completely separate data and configurations. Each is...
Liferay Cloud Native Provisioning
Official Documentation
Liferay Cloud Native Provisioning Liferay's cloud native experience is a Kubernetes-based Helm chart for portable deployment of Liferay instances to any cloud with a Kubernetes engine. This...
Upgrading to Jakarta
Official Documentation
Upgrading to Jakarta Liferay DXP 2025.Q3+/Portal 2026.Q1+ Liferay stepped into the future of enterprise Java when it moved to Jakarta EE starting with the DXP 2025 Q3 and the 2026 Q1 Portal...
Running Liferay DXP in Amazon Web Services
Official Documentation
Running Liferay DXP in Amazon Web Services There are three ways to host Liferay DXP in AWS: Installing Liferay DXP using the plain Helm chart. Installing Liferay DXP from AWS Marketplace. ...
Creating an OAuth2 Application
Official Documentation
Creating an OAuth2 Application When you have an application that can use OAuth 2.0 for authorization, you must register that application so Liferay can recognize it. Open the Global Menu...
Search Results Behavior
Official Documentation
Search Results Behavior Previously, you learned how to display search results. There are additional Search Results concepts and configurations that can enhance your search results: Filtering...
Using the Account Selector Fragment Set
Official Documentation
Using the Account Selector Fragment Set Currently, this feature is behind a release feature flag (LPD-58472). Read Release Feature Flags for more information. The Account Selector fragment set is...
Running Liferay on any Kubernetes Cluster
Official Documentation
Running Liferay on any Kubernetes Cluster These instructions are purposefully generic. They install a cluster that works on any Kubernetes implementation, but additional work is needed to make that...
Setting Rates for Tax Calculations for Commerce 2.0 and Earlier Versions
Official Documentation
Setting Rates for Tax Calculations for Commerce 2.0 and Earlier Versions Define tax rates in Liferay Commerce using configurable tax engines and assign them to tax categories. You can then apply...
Setting Rates for Tax Calculations for Commerce 2.1 and Earlier Versions
Official Documentation
Setting Rates for Tax Calculations for Commerce 2.1 and Earlier Versions Define tax rates in Liferay Commerce using configurable tax engines and assign them to tax categories. You can then apply...
Commerce Roles Reference
Official Documentation
Commerce Roles Reference Liferay includes four roles out-of-the-box for Commerce: account administrator, account member, buyer, and order manager. You can modify these roles or create additional...
Configuring a Message Boards Category Mailing List
Official Documentation
Configuring a Message Boards Category Mailing List The Message Boards widget is deprecated as of Liferay DXP 2024.Q4/Portal GA129. See 2024.Q4 Maintenance Mode and Deprecations for details. You...
Creating Message Boards Threads
Official Documentation
Creating Message Boards Threads The Message Boards widget is deprecated as of Liferay DXP 2024.Q4/Portal GA129. See 2024.Q4 Maintenance Mode and Deprecations for details. A thread is a series of...
Creating Message Boards Categories
Official Documentation
Creating Message Boards Categories The Message Boards widget is deprecated as of Liferay DXP 2024.Q4/Portal GA129. See 2024.Q4 Maintenance Mode and Deprecations for details. Message Boards...
Publishing Apps in Marketplace
Official Documentation
Publishing Apps in Marketplace The process of publishing a DXP app differs slightly from that of Cloud apps. Log into your Liferay account at marketplace.liferay.com. Open the Dashboard menu...
Acquiring DXP Apps
Official Documentation
Acquiring DXP Apps There are two types of DXP apps in marketplace: free and paid. Free apps can be downloaded, deployed to Liferay DXP, and used immediately without deploying a license. Paid apps...
Creating Code with Liferay Workspace
Official Documentation
Creating Code with Liferay Workspace Liferay Workspace is the developer's tool for creating and managing Liferay development projects. Creating Projects Blade CLI makes it easy to create projects...
Creating Job Scheduler Templates
Official Documentation
Creating Job Scheduler Templates Liferay Self-Hosted Liferay PaaS Job Scheduler Tasks are created by implementing the DispatchTaskExecutor interface. Liferay DXP provides multiple out-of-the-box...
Liferay Theme Objects For JSPs
Official Documentation
Liferay Theme Objects For JSPs When you include the tag in your JSP, you gain access to several Liferay theme objects via variables. These objects are described in the table below: ...
Migrating properties which are set through Control Panel to portal-ext.properties file
legacy How To
Important Notification: Modifying the database is a risky operation! Always make a backup of your database before any modifications! If your custom portal properties are already set...
Portal Best Practices
legacy
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. The...
A 'ClassNotFoundException' Thrown by WebLogic 12c
legacy Troubleshooting
This article documents a known issue that occurs when deploying portlets that use JNDI. Liferay Digital Experience Platform (DXP) isn't able to load Weblogic's JNDI classes by default, which often results in a...
Poor Performance in DB2 When Executing SQL Queries Over Big Tables Filtering by a Column With a Non-Unique Index
legacy Troubleshooting
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. Any implementation of these...
Autodeploying Plugins in WebSphere With Liferay 6.1 EE GA2
legacy How To
Starting with Liferay Portal 6.1 EE GA2, plugins can be autodeployed to WebSphere. As a part of the Liferay autodeploy process, the Liferay platform will call the Websphere's wsadmin script interface to deploy the...
Liferay's "Verify" Process
legacy
This article explains a few key facts surrounding the "verify" process in the Liferay Portal and steps that need to be taken to ensure the integrity of the database being used by the...
Installing Portlets Within the Control Panel in 6.1 GA2
legacy How To
In Liferay Portal 6.1 EE GA2, administrators do not have the ability to deploy plugins from the control panel. In order to achieve the installation of portlets not within Liferay...
Liferay DXP 7.1 Database Portal Properties
legacy How To
This article is intended to provide a list of all the Liferay DXP 7.1 database properties that can be used to connect your DXP 7.1 installation to various databases. To use any of them, uncomment the block of code you...
Migrating Tag Sets During the Upgrade Process From Liferay Portal 5.2 to 6.0
legacy How To
This article outlines the changes to Tags and Tag Sets between Liferay Portal 5.2 to Liferay Portal 6.0, and later versions. Specifically: The changes to the Tags Navigation Portlet (Where Did Tag Sets Go?) How to...
JBoss EAP vs. JBoss AS
legacy
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....
DLFileRank Causes Deadlock or SQL Update Batch Errors
legacy Troubleshooting
With DLFileRank enabled, Deadlock or SQL Update Batch Errors may happen due to DLFileRank updates. When using DLFileRank, unique constraints can be found due to the amount of writes...
Changes in Enabling serviceLocator Calls in Liferay DXP 7.0
legacy How To
This article documents a change in where to define serviceLocator properties in Liferay platforms; both in Portal and Digital Experience Platform (DXP). Developers familiar with this functionality in Portal 6.2 can...
Inputting Initial S3 Configuration Settings on DXP 7.0
legacy How To
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,...
Fix Pack and Hotfix installation order on Liferay Portal EE
legacy
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...
Update Manager gives plugin update reminders for up to date plugins
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. This article documents a known issue where...
Setting Up Liferay Portal on a DB2 Database
legacy How To
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
legacy How To
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....
Apache Tomcat Security Advisory: CVE-2018-1336
legacy Troubleshooting
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...