import subprocess
from IPython.display import clear_output

def run_command(command):
    """Run a shell command and handle errors."""
    try:
        subprocess.run(command, check=True, shell=True)
    except subprocess.CalledProcessError as e:
        print(f"An error occurred: {e}")

# 更新包列表
run_command("apt update")

# 安装 OpenSSH 服务器和 Vim 编辑器
run_command("apt install openssh-server -y")
run_command("apt-get install vim -y")

# 修改 SSH 配置以允许密码认证
config_client_cmd = "sudo sed -i '/PasswordAuthentication/s/^#//g' /etc/ssh/ssh_config"
run_command(config_client_cmd)

# 修改 SSH 配置以允许 root 登录
config_server_cmd = "sudo sed -i '/PermitRootLogin prohibit-password/s/prohibit-password/yes/' /etc/ssh/sshd_config"
run_command(config_server_cmd)

# 重启 SSH 服务
run_command("systemctl restart ssh")

# 设置 root 用户密码
password_change_cmd = "echo 'root:qilan123' | sudo chpasswd"
run_command(password_change_cmd)

# 确保 PermitRootLogin 设置正确并重启服务
os.system("echo 'PermitRootLogin yes' | sudo tee -a /etc/ssh/sshd_config")
run_command("service ssh restart")

# 清理环境变量（如果需要）
clear_output()