To set up communication between Studio and the server on which you are debugging:
Ensure the Zend Debugger is installed on your server.
The Zend Debugger comes bundled with Zend Core and Zend Platform, but can also be downloaded as a separate component from http://www.zend.com/en/products/studio/downloads.
To ensure your server is running the latest stable PHP distribution, see the Zend PHP Web Server topic.Ensure the machine on which your Studio is installed is an allowed host for your debugger.
The method for configuring this setting will depend on whether you have Zend Core, Zend Platform or the standalone Zend Debugger installed on your system.
See Setting your Zend Studio to be an Allowed Host for more information.In Studio, configure your server according to the instructions under Adding Servers in the PHP Servers Preferences.
Ensure the correct settings are configured in your Debug Preferences and Installed Debuggers Preferences pages.
Ensure you have a dummy.php file in your remote server's document root.
If your server is situated behind a firewall or other security device, see Setting Up Tunneling for information on how to enable a communication tunnel.
If you don't know whether your server is situated behind a firewall, contact your System Administrator.
