Below is the procedure to change the Host Address of the PostgreSQL Source and Target Environments (If the Host address of the underlying Source and Target server has also changed):
Disable the dSources.
Disable the VDBs.
Login to the Delphix Management application.
Click on the existing environment name you want to modify and open the environment information screen.
In the Attributes section, click the Pencil icon located next to it.
Update the Host address to the new one and save the results by clicking on the Save (Tick) icon. The new Host address will now be updated.
Re-enable the dSources.
Re-enable the VDBs.