Ubuntu 22.04LTS 基础配置

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设置root用户密码

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# 登录系统 shell 命令行设置 root 用户密码
demo@demo-virtual-machine:~/Desktop$ sudo passwd
[sudo] password for demo:		# 输入 demo 用户密码 123456
New password:                       # 设置 root 用户密码 123456
Retype new password:
passwd: password updated successfully 
# 切换 root 用户登录系统
demo@demo-virtual-machine:~/Desktop$ su root 
Password:
root@demo-virtual-machine:/home/demo/Desktop# cd
root@demo-virtual-machine:~#

配置阿里系统安装源

配置系统安装源（自选一个）

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#清华
sudo mv /etc/apt/sources.list{,.bak}
sudo bash -c "cat >> /etc/apt/sources.list << EOF
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
EOF"

sudo apt-get update
#阿里
sudo mv /etc/apt/sources.list{,.bak}
sudo bash -c cat >> /etc/apt/sources.list << EOF
deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
EOF
sudo apt-get update

安装小工具

安装Networkmanager,openssh-server,vim,inetutils-ping,net-tools服务

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sudo apt-get install network-manager openssh-server vim inetutils-ping net-tools -y

开启 root 远程连接服务

修改 sshd_config 文件

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sudo  vim /etc/ssh/sshd_config
# 配置文件末尾处添加如下
PermitRootLogin yes

重启 SSH 服务

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sudo service ssh restart

设置静态ip

进入配置文件夹

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root@demo-virtual-machine:~#  cd /etc/netplan
root@demo-virtual-machine:~#  ll
-rw-r--r--   1 root root   104  8月  9  2022 01-network-manager-all.yaml
##很显然我这里有一个01....

备份旧配置文件

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root@demo-virtual-machine:~# sudo cp 01-network-manager-all.yaml{,.bak}

修改配置文件

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root@demo-virtual-machine:~# sudo vim 01-network-manager-all.yaml
#直接复制
network:
  ethernets:
    ens33:
      dhcp4: false
      addresses:
        - 192.168.48.10/24
      routes:
        - to: default
          via: 192.168.48.2
      nameservers:
        addresses: [192.168.48.2,114.114.114.114]
  version: 2
  
:wq

sudo netplan apply
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