Reference Guide

Working with Firewall Tunneling
Tunneling is not available for MS Windows Operating Systems.
Zend Server Reference Manual
Tunneling provides a means to establish a persistent connection between Zend Studio and a remote
server situated behind a firewall or NAT. After a firewall tunnel is created, instead of assigning more
communication ports for the Debug / Profile Sessions with the remote server, all communication between
Zend Studio and the remote server proceeds through the tunnel.
Note for Windows users:
Tunneling does not work when Zend Server is installed on a Windows-based server. However, you can
perform remote debugging to a machine behind a firewall as long as the correct ports are open on both
ends.
The tunnel communication port should be used in the following circumstances:
1. When debugging or profiling files on a remote server which is behind a firewall or other security
device.
2. Establishing communication between Zend Studio and Zend Server when Zend Server is running on
a remote server which is behind a firewall or other security device. The communication between Zend
Studio and Zend Server facilitates the integration of Zend Server event reporting capabilities with
Zend Studio’s editing, debugging and profiling features, and makes it more effective.
To set up a tunneling connection, several configuration settings must be defined, both in Zend Studio and
on your server's debugger. This can be done through Zend Server , Zend Platform, Zend Core or your
php.ini file.
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