Changing the hour hostname

To change the hostname of our Pi Zero, we are going to make use of the raspi-config tool. Type the following command into your SSH connection:

sudo raspi-config

This will bring up the following menu:

Select option 2 using your cursor keys and press Enter to select it. Read and take note of the rules for allowed hostnames, and press Enter to select your new hostname. I am calling mine wearablepi. Once you have entered your new hostname, press Enter to save it. Press your Tab key twice to select <Finish> on the raspi-config menu and press Enter to close raspi-config. You will be prompted to reboot your Pi Zero. Press Enter with <Yes> selected, and your Pi Zero will reboot.

When your Pi Zero reboots, it should now show on your router's Attached Devices list, with its new hostname.

Reconnect to your Pi Zero via SSH and move onto the next section.