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How to find out your PC Mac address (Windows 10/11Ubuntu and Other Linux Distros) → https://wwwitsfoss.howtogeek.com/761481/how-to-find-your-mac-address-on-windows-10-or-11linux/

Advised MAC Address format in TEXT file: AA:BB:CC:DD:EE:FF

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Due to web browsers aren't allowed to read the MAC address from the computer directly, we need an interface in between to read the MAC address and send it back to the WINX system.

E-HORS Archived WAMP software → https://www.ehors.com/downloads/laragon-wamp.exe

Kindly advise NOT to use RANDOM MAC Address:
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Requirement:

Computer with Windows Operating System
Can install WAMP (Windows Apache Management Protocol)

Install lightweight PHP service on the computer to handle MAC Address reading

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Requirement:

Computer with Ubuntu
Php 7.4, apache
Must login by root user

Login by root user

In Ubuntu Application folder to find "Terminal"
Logo as ::Image Added
Enter command :
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sudo -i
Enter password
After login root user account will be same as tis :: Image Added

Install Apache2 and php7.4

Update repository
install apache
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apt install apache2 -y
Install php7.4 version

Steps to install PHP 7.2 on Ubuntu 22.04 LTS server or desktop
The steps given here can also be used for other Linux distros based on Ubuntu 22.04 LTS such as POP OS Linux, Linux Mint, Elementary OS, and more…
1. Run system update
Our system must be in its latest state to avoid any package conflict. Hence, before going further, let’s first run the system update command to ensure all the available security updates are on our Ubuntu.
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sudo apt update && sudo apt upgrade
2. Add Ondrej PPA Repository on Ubuntu 22.04
We cannot install the PHP7.4 packages using the default system repository of Ubuntu 22.04 because the default version of PHP present to install in this Ubuntu version is PHP 8.1. Hence, to get the older version, add the PPA repository called Ondrej.
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sudo apt install software-properties-common
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sudo add-apt-repository ppa:ondrej/php -y
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3. Install PHP 7.4 on Ubuntu 22.04
Now, we can install PHP7.4 on our Ubuntu 22.04 Linux, however, we need to mention the version number with the command otherwise the system will install the php8.1 on our system. Here are the commands to follow:
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sudo apt install php7.4
For Common Extensions you can use:
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sudo apt install php7.4-{cli,common,curl,zip,gd,mysql,xml,mbstring,json,intl}
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4. Set PHP7.4 as the default version
Note: This step is only needed by those who are using two versions of PHP. For example, on Ubuntu 22.04 you are using PHP 7.4 and PHP 8.1 both. Hence, to make one of them as system’s default version we can use the update-alternatives command:
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sudo update-alternatives --config php
Enter one of the “Selection” numbers of the listed PHP version that you want to make the system’s default one. For example, here 7.4 is at 1 number, hence we have typed the same followed by pressing of the “Enter” key.
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Install lightweight PHP service on the computer to handle MAC Address reading

It will open your directory root folder windows and should only have 1 file called "index.php".
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Right-click in the opened windows explorer and create a new "text" file in the folder as follows:
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Highlight the whole file name when creating a new text file as follows, including the file extension
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Give it the name "getmac.php", and click away to save the file name
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Now right-click on the file name "getmac.php" and edit with notepad.exe
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cd /var/www/html/
Command to generate the php file
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nano /var/www/html/getmac.php

Once you have the file open, copy the following code into the "getmac.php"

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language	php
linenumbers	true

<?php
header('Access-Control-Allow-Origin: *');
$Result = array("STATUS" => "", "MAC_ADDR" => "");
function ReadMacAddressWinCommand()
{
    global $Result;
    if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
        $GetMacResult = exec('getmac /fo csv /nh | findstr /V /R /C:"disconnected"') or die("UNABLE_EXEC_GETMAC_CMD");
        if ($GetMacResult != "") {
            // First see if can explode out \n and or \r\n
            $ConnectionResults = explode("\n", $GetMacResult);
            // ONLY USe first connection;
            $ActiveConnectionFirst = $ConnectionResults[0];
            // Get Only MAC Address;
            $ConnectionInfo = explode(",", $ActiveConnectionFirst);
            // MAC ADDRESS TAKE OUT "
            $ActiveMacAddress = str_replace('"', '', $ConnectionInfo[0]);
            //
            if ($ActiveMacAddress != "") {
                $Result["STATUS"] = "OK";
                $Result["MAC_ADDR"] = $ActiveMacAddress;
            }
        } else {
            $Result["STATUS"] = "CANNOT_GET_MAC_ADDRESS";
        }
    } else {
        $Result["STATUS"] = "NOTN_WIN_SYSTEM";
    }
}
if (isset($_REQUEST["CMD"]) && $_REQUEST["CMD"] == "GETMAC") {
    // First test read a fixed txt file
    $FixMacAddressFile = "./StationMacAddress.txt";
    $MacAddressFile = fopen($FixMacAddressFile, "r");
    if ($MacAddressFile) {
        $MacAddressFixed = rtrim(fread($MacAddressFile, filesize($FixMacAddressFile)));
        fclose($MacAddressFile);
        if (preg_match('/^(?:(?:[0-9a-f]{2}[\:]{1}){5}|(?:[0-9a-f]{2}[-]{1}){5}|(?:[0-9a-f]{2}){5})[0-9a-f]{2}$/i', $MacAddressFixed) == 1) {
            $Result["STATUS"] = "OK";
            $Result["MAC_ADDR"] = $MacAddressFixed;
        } else {
            ReadMacAddressWinCommand();
        }
    } else {
        ReadMacAddressWinCommand();
    }
}
echo json_encode($Result);

Note
Copy from here and right click to paste in terminal

Save the file
Note
Press keyboard: Ctrl + X >>>>> enter : Y >>>>>>>>>>> Press : Enter
Now chekc the MAC address for this computer first , and you can follow command
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ip addr show
Example: after command will show this:: (Green colour line is MAC Address of this computer) Image Added
Select the mac address (select and mark is copy in ubuntu function): 08:00:27:ef:a5:70
Now create another file called "StationMacAddress.txt"
, using the
and method
in
same point
13
2
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Click away to save the file name
Open the file "StationMacAddress.txt" with notepad.exe as point 16
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nano /var/www/html/StationMacAddress.txt
Note
a. Put in your mac address of the POS station as registered in MIN into the file (Example),

make sure no "new line" after the mac address
b. Right click the mouse for paste the MAc Address to StationMacAddress.txt
Save and exist :
Note
Press keyboard: Ctrl + X >>>>> enter : Y >>>>>>>>>>> Press : Enter
Open the file "StationMacAddress.txt" with cat function (This step is double check the MAX A)
Save this text file.
Save it and that all, you can "test" it by calling from browser: localhost:8888/getmac.php?CMD=GETMAC and should have the following screen.