Linode does not set the hostname when a virtual machine is created, therefore if you import it in Bunnyshell, the name of the imported machine will be localhost. If you wish to avoid this please follow this steps prior to importing it:
Step 1. sudo nano /etc/hosts
Step 2. change 127.0.1.1 your-current-hostname to 127.0.1.1 your-new-hostname and then save the file
Step 3. sudo nano /etc/hostsname
Step 4. change currently entered hostname in that file and enter your new hostname after which you save the file
Step 5. reboot the instance