Knowledgebase: WHMCS
Installing WHMCS
Posted by Pacific Host on 04 December 2011 04:10 PM

Downloading WHMCS

Click here to download WHMCS by finding the WHMCS article and clicking the download link associated with it.

Installing Ioncube

WHMCS is encrypted using Ioncube to protect the source code. These days most servers/webhosts have Ioncube support compiled into the PHP build by default so you don't normally need to do anything extra for it. However if you find you do need to install Ioncube on your server, then you can find out how to do this in our Ioncube Installation Tutorial

Installing WHMCS

Installing WHMCS is very simple. The following steps will guide you through the process:

  1. Unzip the contents of the zip file to a folder on your computer
  2. Rename the file to configuration.php
  3. Upload the entire whmcs folder to your website - if you experience problems, try uploading in binary mode
  4. Next you can rename the folder to whatever you like (billing, clients, etc...)
  5. Now visit the installation script at to run the installer process - if you get an Ioncube related error message, see the installation Ioncube steps above
  6. Follow the instructions on screen to install which will involve setting file permissions as listed below, entering your license key and setting up your primary admin account
  7. When complete, delete the install folder from your web server and CHMOD the configuration.php file back to 644.
Required file & folders permissions (unless your php is suPHP or PHPSuExec):

/configuration.php          CHMOD 777 Writeable
/attachments                CHMOD 777 Writeable
/downloads                  CHMOD 777 Writeable
/templates_c                CHMOD 777 Writeable

Post Installation Suggested Steps

After installation is completed, we recommend that you go through and configure your new WHMCS system in the following order:

  1. Login to the Admin Area and configure your General Settings (Setup > General Settings)
  2. Setup your Payment Gateways (Setup > Payment Gateways)
  3. Setup your Products & Services (Setup > Products/Services)
  4. Configure your Domain Pricing (Setup > Domain Pricing)
  5. Setup your Support Ticket Departments (Setup > Support Departments)
  6. Setup email piping so you can manage tickets using the WHMCS Support Desk - for full instructions on this please see the Email Piping article
  7. Ensure the WHMCS Cron Job is setup and configure automated tasks (Setup > Automation Settings)
  8. Place some test orders on your website to check everything works as expected

For furthur guidance, you can watch video tutorials we have prepared for the above tasks @

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