Can someone tell me a safe way to change the server hostname after you already DNN web portals running on it?

thanks,

 

Changing the hostname does effect the "Site Import/Export" job in the Scheduler. In the task information, the hostname is listed in the "Servers" box. If you change the server hostname, then the "Site Import/Export" task will run, but the target will be the old server address. Updating the hostname there will allow the tasks to move from 'submitted' to 'in progress' one at a time, when the Scheduled task runs. You may need to kick it off manually to test it, and if you have a backlog of import/exports, may have to kick it off a few times (I did these exports consecutively, waiting until they completed).