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I'm trying to install Postfix as per Ubuntu's instructions, but during the installation process, I'm getting a purple configuration page with various options listed (no config/internet site etc), but there is nowhere to select or type what installation I require. The terminal doesn't repsond to anything other than shutting it down.

Am I missing something simple here?


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When I've seen such things, I select the option I want with the up and down arrows. Then I use the Tab key until the "OK" button is highlighted. Then press Enter.

I can see this isn't obvious if you're not used to terminal conventions.

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