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Installation FAQ
José Valim edited this page Nov 29, 2022
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This may be caused by a faulty hostname configuration. You can verify if that's the case with:
$ scutil --get HostName
If it prints "HostName: not set", then the issue is confirmed. To address this, you can set the Hostname to _
and let macOS fill it in for you:
$ sudo scutil --set HostName _
Prompt your password and you should be good to go.
If you are using Livebook from the command line, you may also pass the --name livebook@127.0.0.1
option.