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Diffstat (limited to 'nixos/doc/manual/configuration/ipv4-config.section.md')
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diff --git a/nixos/doc/manual/configuration/ipv4-config.section.md b/nixos/doc/manual/configuration/ipv4-config.section.md new file mode 100644 index 00000000000..c73024b856d --- /dev/null +++ b/nixos/doc/manual/configuration/ipv4-config.section.md @@ -0,0 +1,35 @@ +# IPv4 Configuration {#sec-ipv4} + +By default, NixOS uses DHCP (specifically, `dhcpcd`) to automatically +configure network interfaces. However, you can configure an interface +manually as follows: + +```nix +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: + +```nix +networking.defaultGateway = "192.168.1.1"; +networking.nameservers = [ "8.8.8.8" ]; +``` + +::: {.note} +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 [](#opt-networking.hostName): + +```nix +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. |