sftp文件传输以及用户配置
#ssh 这里默认安装完ssh，ssh安装见[[ssh安装以及配置]] 首先创建传输文件用户
useradd web #这个命令是直接创建用户
adduser web #这个命令创建用户时需要创建用户密码，并同时创建用户组
大约 2 分钟
ssh安装以及配置
安装的系统为ubuntu20.04 添加apt源：
vim /etc/apt/sources.list
写入以下网址(阿里云):
deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
# deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
大约 1 分钟