January 5, 2018 · Networking · Email This Post

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From ubuntu 17.10 he package ifupdown and so /etc/network/interfaces are no longer used. Ubuntu 17.10 Server uses the package netplan instead, which configures systemd-networkd.

What is Netplan?

Netplan is a YAML network configuration abstraction for various backends (NetworkManager, networkd).

It is a utility for easily configuring networking on a system. It can be used by writing a YAML description of the required network interfaces with what they should be configured to do. From this description it will generate the required configuration for a chosen renderer tool.

Netplan reads network configuration from /etc/netplan/*.yaml which are written by administrators, installers, cloud image instantiations, or other OS deployments. During early boot it then generates backend specific configuration files in /run to hand off control of devices to a particular networking daemon.

You need add the ip address details in

/etc/netplan/01-netcfg.yaml

file.

Netplan Examples

If you want to add the ip address,gateway and DNS servers use the following syntax

enp0s8:
dhcp4: no
addresses: [192.168.56.10/24]
gateway4: 192.168.56.1
nameservers:
addresses: [8.8.8.8]

In the above example enp0s8 is interface name

If you want to add static routes add the following syntax

routes:
-- to: 0.0.0.0/0
via: gateway address
metric: 1

Once you add the above syntax you can run the following commands as root to test & activate the configuration

sudo netplan --debug generate

sudo netplan apply

If you want more information related to netplan check this document.

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1 Comment to “How to assign static ip address in Ubuntu 17.10 (Artful Aardvark)”

  1. A Guy says:

    And how is this better than what we had before?

    It isn’t. It is change for the sake of change.

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