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If you want to start selling web hosting or need a powerful way to manage multiple websites for clients, combining cPanel/WHM with WHMCS is the industry standard. cPanel gives your clients a beautiful dashboard to manage their websites, emails, and databases. WHMCS sits on top of that to handle all the billing, support tickets, and automatic account creation. Here’s how to get both running on a FlashRDP Linux VPS.

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What You Need Before Starting

  • A FlashRDP VPS running AlmaLinux 8 or 9 (cPanel no longer supports Ubuntu/Debian). We recommend the Gold plan or higher.
  • A valid cPanel license.
  • A valid WHMCS license.
  • A domain name pointing to your FlashRDP server’s IP.

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Step 1: Install cPanel/WHM

Log into your FlashRDP server via SSH as root and run the official cPanel installation script. Note: This process can take 15-30 minutes, so grab a coffee! 
cd /home && curl -o latest -L https://securedownloads.cpanel.net/latest && sh latest
Once it finishes, the script will output a URL (like https://YOUR_IP:2087). Open that in your browser, log in with your root credentials, and follow the setup wizard to configure your nameservers and activate your license.

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Step 2: Set Up the Web Environment

Before installing WHMCS, you need a place to put it:
  1. Inside WHM, go to Create a New Account.
  2. Create an account for your primary domain (e.g., billing.yourdomain.com).
  3. Make sure to assign it a package that has a MySQL database available.

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Step 3: Install WHMCS

  1. Download the latest WHMCS release from their official website.
  2. Log into your new cPanel account at https://YOUR_IP:2083.
  3. Use the File Manager to upload the WHMCS .zip file to your public_html folder and extract it.
  4. Rename the configuration.php.new file to configuration.php.
  5. Create a new MySQL Database and User in cPanel, and save the password.
  6. Open your browser and navigate to https://billing.yourdomain.com/install/install.php to run the WHMCS setup wizard!

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Last modified on June 6, 2026