
Networking
Hostname
The hostname is a human-readable alias for a device on a network. The hostname identifies your Raspberry pi in your home network.
- The hostname is stored in 
/etc/hostname. 
To change the hostname:
- Edit 
/etc/hostname. - Edit 
/etc/hoststo change127.0.0.1 old-hostnameto127.0.0.1 new-hostname. 
DHCP Reservation
Your home router probably runs a DHCP server which reassigns local IP addresses to your devices. If you’re using the Raspberry pi as a server, then you’d probably like to have a stable IP address.