通过Web浏览器(PHP)重新启动Linux服务器

问题描述：

在Google上打开并阅读所有结果后，我认为是时候在某个地方创建自己的线程了.很抱歉，我需要问一个已经问过的问题，我对此压力还不够，但是我没有其他选择，因为没有其他问题可以帮助我实现我的目标.

After opening and reading every result on Google, I figured it's time to make my own thread somewhere. I am sorry that I need to ask a question that's already been asked before, I cannot stress this enough, but I have no other option as no other question asked has helped me achieve what my goal is.

我正在尝试通过通过HTML(用于按钮/文本)和PHP(用于执行上述功能)的Web界面设置重新启动/执行其他系统功能的方法.

I'm trying to setup a means of rebooting/doing other system functions through a web interface powered by HTML (for the buttons/text) and PHP (for the execution of the aforementioned functions).

我无法使它正常工作.我读过我需要将网络用户添加到 sudoers 文件中，我已经尝试过了.我正在服务器上运行Nginx，如何将用户添加到sudoers中?

I'm unable to get this to work. I've read that I need to add the web user to the sudoers file, and I've tried. I'm running Nginx on my server, how do I add the user to the sudoers in my case?

此外，我知道安全隐患.

Also, I'm aware of the security risks.

以下是我到目前为止的内容:

The following is what I have so far:

HTML(index.html):

<body>

<h3>Restart</h3>
<p>
<form action="restart.php" method="get">
  <input type="submit" value="Press me.">
</form>
</p>

</body>

PHP(restart.php):

<?php
echo "This is a test";
echo "<br>";
echo "<br>";
echo shell_exec('ifconfig');
echo "<br>";
echo "<br>";
echo "Restarting server...";
exec ('/usr/bin/sudo /etc/init.d/portmap restart');
shell_exec("/sbin/reboot");
exec("/sbin/reboot");
system("/sbin/reboot");
?>

请记住，在这里，我只有太多东西试图执行，因此我确保当其中之一起作用时，我就击中了目标.IFConfig只是一项测试，以确保它实际上能够执行.

Mind you that here, I only have so many things attempting to execute, so that I make sure I hit the target when one of them works, if that makes sense. The IFConfig is just a test to make sure that it's actually able to execute.

Sudoers:

# User privilege specification
root    ALL=(ALL:ALL) ALL
www-data reboot = NOPASSWD: /sbin/reboot

这一切都在Ubuntu 14.04 LEMP上完成.

This is all on Ubuntu 14.04 LEMP.

答

您可以通过编辑sudoers文件来完成此操作:

Sudoers:

www-data ALL=(root) NOPASSWD: /sbin/reboot

如果主机名是不是'reboot'，则第一个ALL用于主机名 ，我建议您保留ALL，因为它可以在任何主机名中使用.这就是为什么它在您的服务器上似乎不起作用

The first ALL is for the hostname if you're hostname is not 'reboot' I advise you to keep ALL as it will work in any hostname. That's why it doesn't seem to work on your server

restart.php

exec('sudo /sbin/reboot');

或者无需编辑您的sudoers文件.

首先创建一个文件，您将在其中存储您的root密码

〜/密码:

myrootpassword

第二次在php文件作为root用户运行任何命令(不要忘记指定存储密码的文件)

phpfile.php:

exec('sudo -u root -S /sbin/reboot < ~/password');

通过Web浏览器(PHP)重新启动Linux服务器

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