ubuntu系统默认登录账号和密码均为ubuntu
本例设置静态IP适用于 Ubuntu 18.04 LTS、 Ubuntu 20.04 LTS
查看 ubuntu 版本号:
// 系统版本
$ cat /etc/issue
// 内核版本
$ uname -a
查看当前ip:
$ ip addr
$ ifconfig -a
一.网线连接，设置静态IP
修改网络配置文件
$ sudo vi /etc/netplan/50-cloud-init.yaml
设置IP地址为 192.168.1.126, 子网掩码24位即255.255.255.0, 网关为192.168.1.1, DNS1: 233.5.5.5, DNS2: 8.8.8.8
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. 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:
eth0:
dhcp4: no
addresses: [192.168.1.126/24]
optional: true
gateway4: 192.168.1.1
nameservers:
addresses: [223.5.5.5,8.8.8.8]
version: 2
# 其中nameservers addresses 是配置DNS addresses: [DNS,备用DNS]
# gateway4 网关IP
运行命令应用新配置,立即生效
$ sudo netplan apply
二.WIFI连接（每次重新分配IP）
ubuntu@ubuntu:~$ sudo vi /etc/netplan/50-cloud-init.yaml
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. 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:
eth0:
dhcp4: true
optional: true
addresses: [192.168.2.166/22]
gateway4: 59.72.109.254
nameservers:
addresses: [10.10.10.10,10.10.10.11]
wifis:
wlan0:
dhcp4: true
access-points:
#WIFI名字
"B228":
#WIFI密码
password: "123456"
version: 2
