@账号
vboxuser
changeme
@ssh远程登录vbox虚拟机
https://www.cnblogs.com/BuzzWeek/p/17557981.html
Terminal
su - root
changeme
sudo apt-get update
sudo apt-get -y install openssh-server
#启动sshd
systemctl status sshd
@设置允许ssh登录vbox虚拟机
参考：https://blog.csdn.net/darkgray11/article/details/136443000
@vi命令
使用dd删除行
@配置安装源
vi /etc/apt/sources.list
deb https://mirrors.aliyun.com/debian/ bullseye main non-free contrib
deb-src https://mirrors.aliyun.com/debian/ bullseye main non-free contrib
deb https://mirrors.aliyun.com/debian-security/ bullseye-security main
deb-src https://mirrors.aliyun.com/debian-security/ bullseye-security main
deb https://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
deb-src https://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
deb https://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib
deb-src https://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib
预发布软件源，不建议启用
#deb http://mirrors.aliyun.com/debian/ groovy-proposed main restricted universe multiverse
#deb-src http://mirrors.aliyun.com/debian/ groovy-proposed main restricted universe multiverse
@命令
切换root
su - root
查看已安装应用列表
ps -e
安装包
apt install -y sshd