If you change the hostname and run pdm_configure, you will encounter the following error message and will not be able to continue the configuration.
After clicking on <OK>, the following error appears.
CA Service Desk 17.x
In order to change the host name, please follow the steps as shown below.
NOTE: Please take a backup of the file system and database before you do the above change.
NOTE: If the hostname has already changed, causing Service Desk not to start correctly, you will need to update the database directly instead.
NOTE: This procedure works if Service Desk only is installed on the server. If other components are installed such as xFlow and Search Server, this will not affect the settings for either of these other components. In this situation, the Swingbox Migration method is the only way to successfully change the hostname of the server.