IPv4 Configuration
By default, NixOS uses DHCP (specifically,
dhcpcd) to automatically configure network
interfaces. However, you can configure an interface manually as
follows:
networking.interfaces.eth0.ipv4.addresses = [ {
address = "192.168.1.2";
prefixLength = 24;
} ];
Typically you’ll also want to set a default gateway and set of name
servers:
networking.defaultGateway = "192.168.1.1";
networking.nameservers = [ "8.8.8.8" ];
Statically configured interfaces are set up by the systemd service
interface-name-cfg.service. The default gateway
and name server configuration is performed by
network-setup.service.
The host name is set using
:
networking.hostName = "cartman";
The default host name is nixos. Set it to the
empty string ("") to allow the DHCP
server to provide the host name.