With the Barracuda Control Server, you can troubleshoot problem devices in a remote location from your office, or anywhere, by opening a support tunnel on one or more of your Barracuda Networks products at the same time. Barracuda Networks Technical Support can then assist you with any or all of the devices connected to your Barracuda Control Server. Using the Barracuda Web Application Firewall as an example, you click on ADVANCED > Troubleshooting.
In this example, each Barracuda Web Application Firewall is listed by serial number. If the Action column shows Open, there is not a support tunnel currently open to the device. Click Open to open a support tunnel. You can then click Close at any time to close the support tunnel.