The effective hostnameįinally, every machine also has a hostname. Otherwise, it recommends using a numerical IP address. If there's a network name, then the Sharing pane recommends using it. The name returned by doing a reverse-DNS lookup on its IP address, from its DNS server.The name it was assigned by its DHCP server (I'm not 100% sure of this.).On startup, a machine decides its network name by using the first item on this list that is available: Specifically, macOS seems to use the following rule. So this network name is not defined by local configurations but by the surrounding network environment. Since this is the name that macOS advises you to give other systems in order for them to reach you, what matters is that this is what will work for those systems as opposed to what this machine wants to be called. (This name may also define the NetBIOS name reported as currently being used - I'm not sure.) This is the name which appears in macOS's Sharing pane in System Preferences, as part of the SSH connection string for Remote Login, the VNC URL for Screen Sharing, and the SMB URL for File Sharing. The inferred "network name"Įvery machine may also have what I will call a network name, which is a plain old unicast DNS name which it recommends for reaching the system on the local network. If it's not set explicitly, this name is generated by character-simplifying the ComputerName. This is the name seen by other machines via AirDrop and Bonjour-distributed services. This is the name used to form the system's multicast DNS name, which will be a string like "apollo.local.". LocalHostNameĮvery machine also has a LocalHostName. For instance, you could name your machine "apollo". It's what you access by System Preferences / Sharing / Computer Name, by networksetup -getcomputername, or by scutil -get ComputerName. ComputerNameĮvery machine has a pretty user-facing name.
#HOW DO YOU FIND MAC COMPUTER NAME MAC#
Since I couldn't find documentation on how a Mac machine gets its name, I thought I'd write up these notes for my own reference later.Ī macOS machine has a few different names, which might or might not be equal.
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