18.04 LTS 네트워크 설정

참고: https://help.ubuntu.com/lts/serverguide/network-configuration.html

 

OS: 18.04.03 LTS

Kernel: 4.15.0-58-generic

 

vi /etc/netplan/50-cloud-init.yaml 

 Default상태

# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
    ethernets:
        enp0s5:
            dhcp4: true
    version: 2

설정한 상태

[DHCP구성시]
network:
    ethernets:
        enp0s5:
            dhcp4: true <-DHCP사용 여부
    version: 2

[Static 구성시]
network:
    ethernets:
        enp0s5:
            dhcp4: no <-DHCP사용 여부
            addresses: [10.211.55.71/24] <-IP설정
            gateway4: 10.211.55.1 <-Gateway설정
            nameservers: <-DNS설정 명시
              addresses: [168.126.63.1,8.8.8.8] <-DNS설정
    version: 2

netplan apply