How To Hide PHP Version in Linux

Hide PHP Version in Linux

In this tutorial, we will show you how to hide the PHP version on a Linux server. In default Apache/PHP configuration, the server sends HTTP Header with the information of which PHP version is running on the server. The HTTP response header “X-Powered-By” displays the version of PHP that is running on the server. This information can be used by an attacker to try to exploit any vulnerabilities in the PHP version you are running, especially if you are running an older version with known vulnerabilities.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation hide PHP version information in the header on a Linux server.

Prerequisites

  • A server running one of the following operating systems: Ubuntu 22.04, 20.04, and any other Debian-based distribution like Linux Mint.
  • It’s recommended that you use a fresh OS install to prevent any potential issues.
  • SSH access to the server (or just open Terminal if you’re on a desktop).
  • A non-root sudo useror access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Hide PHP Version in Linux

Step 1: First take the backup copy of file php.ini.

cp -p /etc/php.ini /etc/php.ini.orig

Step 2. Edit the php.ini and search for keyword expose_php and make it off I use vi or nano editor. You can select your favorite editor:

nano /etc/php.ini

Next, find the expose_php and change its default value from On to Off:

expose_php = Off

Now restart the apache webserver:

systemctl restart httpd

To check whether it is working or not request a response using the below command:

curl -I http://www.your-domain.com/

Result:

HTTP/1.1 200 OK
Server: nginx
Date: Mon, 01 Feb 2016 01:47:57 GMT
Content-Type: text/html; charset=UTF-8
Vary: Accept-Encoding
X-Pingback: http://www.y0urdomain.com/xmlrpc.php
Date: Wed, 11 Feb 2015 14:10:43 GMT
X-Page-Speed: 1.9.32.2-4321
Cache-Control: max-age=0, no-cache

Congratulations! You have successfully hidden the PHP version. Thanks for using this tutorial hide PHP version in the HTTP Headers on the Linux system. For additional help or useful information, we recommend you to check the official PHP website.

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