DHCP(Dynamic Host Configuration Protocol)
A service that automatically assigns IP addresses and network settings to devices as they join the network.
Your router usually runs DHCP. For a server, set a DHCP reservation (or a static IP) so its address never changes — every reverse proxy rule and bookmark depends on it.
Related articles
Static IP
A fixed IP address that never changes, either set on the device or reserved on the router.
IP Address
A numeric label that identifies a device on a network, such as 192.168.1.10 (IPv4).
Default Gateway
The device (usually your router) that traffic is sent to when leaving the local network.