The Raspberry Pi can be easily connected to a Wifi network, so it’s a good idea to set up an Apache2 server to create a web interface for managing yorr Raspberry Pi. A web server lets yor send and receive web commands, develop a local or global website, or create a web interface to configure or control yorr Raspberry Pi remotely from a computer or smartphone.

In this tutorial, we’ll look at how to set up an Apache2 web server on the Raspberry Pi and create a locally accessible HTML interface.


Recover the Raspberry Pi’s IP address and host name

When working on a network system, it’s important to know the IDs of the devices yor’re using. In the case of an Apache2 server, we’ll need the IP address and host name.

To retrieve the IP address, enter the command:


The IP(inet) address is located under wlan0 if yorr Raspberry Pi is connected to the network via Wifi, and under eth0 if it’s connected via cable. Here, the IP address is

To retrieve the host name, enter the following command in a terminal:


By default, the Raspberry Pi returns “raspberrypi”. Yor can change this setting in the raspi-config configuration wizard.

N.B: It is strongly recommended to change the hostname if yor are using several Raspberry Pi on the same network.

Installing Apache2

To install the Apache package, simply enter the following command in a terminal

sudo apt-get install apache2 -y

N.B: the -y option automatically accepts the installation.

To uninstall the package, enter the command

sudo apt-get remove apache2 --purge

At this point, yor can check that Apache is enabled by entering the following in a browser taskbar



N.B: update with the hostname and IP address corresponding to your device. If the .local address does not work, you need to install and activate the avahi service.

sudo apt-get install avahi-daemon

Modification of rights

Before continuing, you need to give the server and yourself read and write access rights. We will then be able to modify the files without having to go through the root superuser.

First, let’s add the user to the www-data group (Apache’s default group)

sudo usermod -a -G www-data pi

Then we give ownership of the folder to the www-data group

sudo chown -R -f www-data:www-data /var/www/html

Results with ls -l to view access rights

pi@raspberrypi:~ $ ls -l /var/www/
total 4
drwxr-xr-x 2 www-data www-data 4096 mai   16 17:33 html

Finally, enter this line of code to create and modify files easily

sudo chmod -R 775 /var/www/html/

PHP installation

To make your web page dynamic, you need to use the PHP interpreter. To install the packages needed to use PHP, enter the following command

sudo apt-get install php7.3 php7.3-mbstring php7.3-mysql php7.3-curl php7.3-gd php7.3-zip -y

N.B: version 7.3 is the latest version available on the Raspbian repo. You can install more recent versions of php by compiling the sources yourself.

If PHP doesn’t work. You can try these two lines of code.

sudo a2dismod mpm_event
sudo a2enmod php7.3

Then restart service

sudo systemctl restart apache2

The first disables mpm_event, which conflicts with mpm_prefork, and the second enables php, which depends on mpm_prefork.

Creating a Web page

To test the installation, we’re going to create a simple web page that displays certain information about the Raspberry Pi. To do this, we’ll execute shell commands using PHP and the exec() function.

<!DOCTYPE html>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>MyRPi Webpage</title>
	    display: inline-block;
	table, th, td {
	  border: 1px solid black;
	  border-collapse: collapse;
	<div style="width:90%;margin:auto;">
	<div id="icon" style="border-bottom: 3px solid #3aaa35; ">
	    <img src="https://i0.wp.com/www.aranacorp.com/wp-content/uploads/logo-100.png"/>
	    <h1>RPi Info</h1>
		<p><?php echo "Date ".date('Y-m-d H:i:s') ; ?></p>
		   <!-- hardware and os info -->
		      <td>cat /sys/firmware/devicetree/base/model</td>
			  <?php echo shell_exec('cat /sys/firmware/devicetree/base/model'); ?>
		      <td>uname -o</td>
			  <?php echo shell_exec('uname -o'); ?>
		      <td>uname -m</td>
			  <?php echo shell_exec('uname -m'); ?>
		      <td>OS version</td>
		      <td>. /etc/os-release; echo $PRETTY_NAME</td>
			  <?php echo shell_exec('. /etc/os-release; echo $PRETTY_NAME'); ?>
		    <!-- hostname info -->
			  <?php echo shell_exec('hostname'); ?>
		      <td>IP Address</td>
		      <td>hostname -I</td>
			  <?php echo shell_exec('hostname -I'); ?>
		    <!-- GPU/CPU info -->
		      <td>GPU temperature</td>
		      <td>vcgencmd measure_temp</td>
			  <?php $output=exec('vcgencmd measure_temp'); 
			  $output = str_replace('temp=','',$output);
			  $output = str_replace('\'C','',$output);
			  echo $output;?>
		      <td>ARM CPU temperature</td>
		      <td>cat /sys/class/thermal/thermal_zone0/temp</td>
			  <?php $output=exec('cat /sys/class/thermal/thermal_zone0/temp'); 
			  echo $output/1000; ?>
		      <td>ARM Clock</td>
		      <td>vcgencmd measure_clock arm</td>
			  <?php $output=exec('vcgencmd measure_clock arm'); 
			  echo $output; ?>


By entering the url raspberry.local

Solving common problems

If Apache2 has trouble restarting

check that Nginx is not running at the same time

sudo systemctl stop nginx

You can also uninstall it if you don’t need it

sudo apt-get purge nginx

If Linux commands are not launched by PHP

like vcgencmd, you can add www-data to the video group and then restart

sudo usermod -G video www-data


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