This video describes how to test JDBC Connectivity using the JDBC test utility and applies to domain repository, model repository service, metadata manager service, reporting service
Converting and adding of a self signed certificate to use a Webservice Consumer transformation
How to unassign services from an expired key and assign them to a valid key in 9.1.0 and 9.5.1
How to find in which host the Repository Integration service is running in a multi node domain