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OS X Helpful Tips & Guide
To permanently change the Hostname of your device via the terminal
Set or Change Hostname (via Terminal) - OS X 10.6 - 10.10
Open Terminal by going to Applications, then Utilities, and select Terminal
The type the following:
sudo scutil –-set HostName new_hostname
For example: sudo scutil –-set HostName ECE-MACNote: It may also be necessary to perform the following commands to solidify the changes
sudo scutil --set ComputerName <hostname>
For example: sudo scutil --set ComputerName ECE-MAC
sudo scutil --set LocalHostName <hostname>
For example: sudo scutil --set LocalHostName ECE-MAC