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ubuntu ​

配置镜像 ​

备份源 ​

cp /etc/apt/source.list /etc/apt/source.list.bak

清空源 ​

echo > /etc/apt/source.list

更新源 ​

shell
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted" >> /etc/apt/sources.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted" >> /etc/apt/sources.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic universe" >> /etc/apt/sources.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates universe" >> /etc/apt/sources.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic multiverse" >> /etc/apt/sources.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse" >> /etc/apt/sources.list
echo "deb http://us.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb http://security.ubuntu.com/ubuntu bionic-security main restricted" >> /etc/apt/sources.list
echo "deb http://security.ubuntu.com/ubuntu bionic-security universe" >> /etc/apt/sources.list
echo "deb http://security.ubuntu.com/ubuntu bionic-security multiverse" >> /etc/apt/sources.list
echo "deb http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse" >> /etc/apt/sources.list
echo "deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse" >> /etc/apt/sources.list

软件源更新 ​

apt-get update

软件更新 ​

apt-get upgrade

配置 root ​

设置 root 密码 ​

shell
sudo passwd root
修改 sshd_config 文件 开启 root 访问权限 ​
bash
sudo vim /etc/ssh/sshd_config

PermitRootLogin yes
PasswordAuthentication yes
bash
sudo systemctl restart sshd