Before Opening
- Before Opening a Clustering Ticket
 - Before Opening a Document Library Ticket
 - Before Opening a LAR/Staging Ticket
 - Before Opening a Liferay API Ticket
 - Before Opening a Liferay Performance Ticket
 - Before Opening a Liferay Sync Ticket
 - Before Opening an Accessibility Ticket
 - Before Opening an Activation Key Ticket
 - Before Opening an Authentication Ticket
 - Before Opening an Upgrade Ticket
 - Before Opening a Portal Deployment Ticket
 - Before Opening a Search/Indexing ticket
 - Before Opening a Security Ticket
 - Before Opening a Shutdown/Inoperable System Ticket
 - Before opening a ticket related to VPN on Liferay PaaS
 - Before Opening a User Interface (UI) Ticket
 - Before Opening a Web Content Management Ticket
 
Before Opening a Shutdown/Inoperable System Ticket
The following article outlines a short checklist of questions to ask and steps to take before opening a Shutdown/Inoperable Systems ticket in Liferay Help Center. By taking a moment to go through this checklist before opening a Help Center request, you're ensuring the fastest possible resolution for the particular issue.
Resolution
For each ticket, please attach your portal-ext.properties file as well as the output of the patching-tool info command specific to the environment.
For shutdown/inoperable systems error tickets, in the event the system becomes shutdown or inoperable, please work through the following checklist and include the resulting information when you create a Help Center ticket:
- Check the application server logs, searching for error messages related to peripheral systems connection and verify they are up and running and reachable from the Liferay DXP servers.
 - Because Liferay DXP works in cooperation with other systems, those too need to be checked such as, but not limited to: 
                
- Database connections
 - Search index servers (Elastic, Solr) connections,
 - LDAP servers
 - Web servers
 
 - Lastly, check your infrastructure such as, but not limited to: 
                
- Network settings,
 - Physical servers,
 - Memory allocation,
 - Hard drives
 - Firewall
 
 
If any of those systems or the infrastructure are malfunctioning, it is unlikely that Liferay DXP can operate normally, exhibiting different types of errors.