I have an issue where my customer used a different hostname naming convention than my company did, for the devices they purchased from us. Example:
We named the devices Lenny1, so the FQDN is lenny1.whatever.com and user@Lenny1 is what is visible to users when they log in to the device.
The customer used the name PCAP02 for this same device. This creates confusion for users when they log in and see Lenny1 as the system name.
For very complex reasons, we cannot easily change the /etc/hosts file to use the names that our customer uses. My question is, is there a way to spoof the system name that the customer will see, when they log in? This change needs to be purely cosmetic, so that the users won't get confused about what system they're logging in to.