Nevertheless, one thing kept me from setting up Pis (Tau?) all over the place. If I want to run the Raspberry Pi headless — no monitor, no keyboard, no mouse, just remote login via Internet — how do I find out its IP address?
I learned of one way to solve the problem: set up a startup script where it speaks the IP address aloud. Then I figured out a second way: run a startup script that displays the IP address on a 16×2 LCD screen.
Neither takes long to configure. Each makes the device easier to set up for remote situations or for hiding in a pocket with a USB battery and becoming a walking performance piece.
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Simple way is to have it register it’s name with dynamic DNS. Set up a Raspberry pi to be an internal DNS/DHCP host that allows dynamic updates from your network. Integrate DHCP and DNS, then when the unit joins the network it automatically registers it’s name with DNS.