更新
apt update -y
apt-get upgrade -y
apt install vim -y
启用root并开启ssh远程连接
sudo passwd root #修改了root用户的密码从而激活了root用户权限
su root
echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
systemctl restart sshd
启用root桌面登录
#目前并不能直接通过root用户登录进入桌面
修改/root/.profile
    注释：#mesg n 2> /dev/null || true
    新增：tty -s && mesg n || true

修改/etc/pam.d/gdm-autologin和/etc/pam.d/gdm-password
    注释：auth required    pam_succeed_if.so user != root quiet_success

修改/usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
    新增：greeter-show-manual-login=true
    新增：gall-guest=false
安装桌面远程
apt install xrdp -y
systemctl status xrdp
adduser xrdp ssl-cert
systemctl restart xrdp
ufw allow 3389

#闪退
echo xfce4-session >~/.xsession
chmod +x ~/.xsession
sudo systemctl restart xrdp.service

apt install dconf-editor -y