If you need to change the port number that a particular server instance listens on it is a simple task from the instance manager inside of the administration manager FRAM. What though if you want to change the port that FRAM itself listens on?
I recently had to do this after learning about a new requirement on our load balancer in work that precluded the use of port 8087 on the servers for other services such as FusionReactor. Since FR was already installed and I didnt want to have to spend time uninstalling/reinstalling/reconfiguring I decided to see if there was a simple way to just change the port number.
After about an hour of googling and reading forums I could not find an answer that applied to FusionReactor 5 and I finally just started trying to open files and digging around. The solution turns out to be pretty easy.
Using notepad open and edit this file "FusionReactor AM Service.vmoptions" located at:
Inside this file search for and edit this block of text replacing the value with the port number you want FRAM to listen on.
Save your change and restart FusionReactor.