Backend Development
PHP Tutorial
How do PHP scripts get permission to control Nginx startup and stop?
How do PHP scripts get permission to control Nginx startup and stop?
Apr 01, 2025 am 09:24 AM
Solve the problem of PHP script controlling Nginx startup and stop permissions
This article discusses how to use PHP scripts to control the start and stop of an Nginx server. Many users try to execute system commands using shell_exec() function, but the command execution fails due to insufficient permissions. For example, shell_exec('service nginx stop') seems to be successful, but the Nginx service does not actually stop.
The root cause of the problem is that PHP scripts are usually run as non-root users (such as www-data), and the service command requires root permissions to operate the system. Even if the command returns "done", it does not mean that the service has been successfully stopped.
Solution: Grant sudo permissions
To solve this problem, it is necessary to give PHP runners (such as www-data) permission to execute sudo commands without a password. This requires careful editing of the /etc/sudoers file. It is strongly recommended to use the visudo command to edit the file to avoid file corruption:
sudo visudo
Add the following line at the end of the /etc/sudoers file:
<code># 允許www-data用戶無需密碼執(zhí)行所有sudo命令www-data ALL=(ALL) NOPASSWD: ALL</code>
Note: ALL=(ALL) NOPASSWD: ALL gives www-data users extremely high permissions. Please adjust the permission scope according to actual needs. Only necessary commands are allowed to be executed, such as www-data ALL=(ALL) NOPASSWD: /usr/sbin/service nginx * Only operation of nginx services are allowed.
After the modification is completed, the commands in the PHP code should be changed to:
$command = 'sudo service nginx stop'; $output = shell_exec($command); echo $output; // Output command execution result
Additional steps in the Docker environment:
In the Docker container, you need to install sudo first:
apt-get update && apt-get install -y sudo
Then, follow the steps above to modify the /etc/sudoers file. Make sure that sudo is correctly configured in the container and that the /etc/sudoers file modification takes effect.
Through the above steps, the PHP script can obtain sufficient permissions to control the start and stop of the Nginx service. Remember, modifying the /etc/sudoers file requires careful operation, as incorrect configuration may lead to system instability. It is recommended to back up the file before modification and carefully check the correctness of the configuration after modification.
The above is the detailed content of How do PHP scripts get permission to control Nginx startup and stop?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to download Ouyi on Android phone ok download tutorial (step-by-step tutorial)
Jun 12, 2025 pm 10:18 PM
How to safely download and install Ouyi OK APP? 1. Visit the official website: Use the Android browser to enter the official website and confirm it is the official website; 2. Find the download entrance: Click the "APP Download" button on the homepage; 3. Select the Android version: Select "Android Download" on the download page; 4. Download the APK file: Allow the browser to download APK installation packages from unknown sources; 5. Enable installation permissions: Go to the mobile phone settings to enable the "Unknown Source Application Installation" permission; 6. Complete the installation: Click the APK file to install, etc.
How to download Binance binance download tutorial on Android phone (step-by-step tutorial)
Jun 12, 2025 pm 10:15 PM
Two methods and precautions for downloading Binance on Android phones: 1. Download the APK file through the official website: visit Binance official website www.binance.com, click "Android APK Download", and enable the installation permission of the "Unknown Source" of your phone before completing the installation; 2. Download through a third-party application store: select a trusted store to search for "Binance", confirm the developer information and download and install it. Be sure to get the app from official channels, enable two-factor verification, regularly change passwords and be alert to phishing websites to ensure your account security.
Ouyi download tutorial Ouyi latest version download tutorial (full version)
Jun 18, 2025 pm 07:39 PM
As the world's leading cryptocurrency exchange, OKX provides a safe and reliable trading environment and a rich variety of digital assets. 1. Visit the official website www.okx.com to download the application; 2. Select the Android or iOS version according to the device; 3. Install the application and complete registration or login; 4. Enable two-factor verification to ensure account security. The platform supports spot trading, leveraged trading, contract trading, DeFi, OKX Earn financial management and NFT market.
Official correct address of Ouyi Exchange APP
Jun 17, 2025 pm 01:24 PM
To obtain the official correct address of the Ouyi Exchange APP, you need to go through the following three official channels: 1. Download the official website, visit the official domain name [adid]fe9fc289c3ff0af142b6d3bead98a923[/adid] and download the corresponding system version; 2. Follow the official social media account to obtain the latest download information; 3. Contact the official customer service to confirm. At the same time, users should be alert to phishing websites, check domain names, install antivirus software, enable secondary verification and avoid leakage of personal information to ensure account security.
How do I install PHP on my operating system (Windows, macOS, Linux)?
Jun 20, 2025 am 01:02 AM
The method of installing PHP varies from operating system to operating system. The following are the specific steps: 1. Windows users can use XAMPP to install packages or manually configure them, download XAMPP and install them, select PHP components or add PHP to environment variables; 2. macOS users can install PHP through Homebrew, run the corresponding command to install and configure the Apache server; 3. Linux users (Ubuntu/Debian) can use the APT package manager to update the source and install PHP and common extensions, and verify whether the installation is successful by creating a test file.
How to log in to Ouyi on a computer? ouyi European Exchange PC installation package download
Jun 12, 2025 pm 04:24 PM
Logging into the OIEI Exchange computer and downloading the OIEI Exchange PC installation package is a key step to entering the world of digital currency trading. Imagine that you are sitting in front of your computer, preparing to start your digital currency trading journey, but you find that you don’t know how to log in to the OI Exchange, or you can’t find the download portal for the PC installation package. This will undoubtedly make you feel frustrated. Don’t worry, this article will answer these questions in detail, allowing you to easily get started and enjoy the digital currency market. We will guide you step by step to complete the login and download of the PC installation package of the Ouyi Exchange to ensure that you will not miss any details
The online viewing version of the Manfro Website Entrance For Free Viewing
Jun 12, 2025 pm 08:09 PM
Frogman, a platform for comic lovers, especially those who love Taiwanese version of comics, provides a convenient online viewing channel. Frog Man brings together comic works of various themes, from passionate adventures to sweet love, from fantasy epics to urban life, everything is available to satisfy the tastes of different readers. It not only provides genuine authorized comic resources, ensuring the quality and experience of reading, but also strives to create a friendly comic community so that readers can exchange experiences, share their feelings, and explore the charm of comics together.
How does Docker work with Docker Desktop?
Jun 15, 2025 pm 12:54 PM
DockerworkswithDockerDesktopbyprovidingauser-friendlyinterfaceandenvironmenttomanagecontainers,images,andresourcesonlocalmachines.1.DockerDesktopbundlesDockerEngine,CLI,Compose,andothertoolsintoonepackage.2.Itusesvirtualization(likeWSL2onWindowsorHyp
