I use this simple bash script to set all four of the computer names so they are consistent.
There are differences between the computer names, but I typically want them all the same. The only one I set differently is the NetBIOS name because it can only be 15 characters. In order to make it unique, I just set it as the computer’s serial number, which is saved in a variable in the script. And since the serial numbers are only 12-13 digits long, it’s perfect!