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Scenario: Configuring an accelerator outside the firewall

About this scenario  Top

In this scenario, the company wants a way to secure the Web content from intruders. It moved the Web or streaming server inside the firewall and put an appliance configured as an accelerator outside the firewall.

The locations of the Web or streaming server and accelerator are not apparent to users. The user who sends a request thinks that the request is being sent directly to the Web server or streaming server.

Appliance configuration outside a firewall  Top

When you deploy an accelerator outside the firewall, you must configure the firewall so that it allows requests from the accelerator to pass through the firewall to the Web server or streaming server, and then back to the accelerator.

Illustration of the scenario topology  Top

The following illustration shows a single accelerator outside the firewall.

Accelerator host name and IP address  Top

Although the host name is not accelerator-specific, you might need to change it when you deploy the appliance as an accelerator.

The following table shows the configuration of the host name and IP address on the accelerator for this scenario.

Option

Configuration data

Comments

Host Name

www.abc.com

The accelerator takes the host name that was previously assigned to the Web or streaming server.

Primary IP Address

IP address A

 --

After setup, you can change the Primary IP Address option (on the Network - Interfaces page) and the Host Name option (on the System - Host Name page) in the Appliance Manager.

Acceleration rule  Top

The following acceleration rule maps the accelerator IP address, port, and host name settings to the Web server that the appliance accelerates.

With this configuration, any client can access the accelerator because no restrictions are set for the IP addresses that can access it. No client has to directly access the Web server or streaming server, which is on the other side of the firewall.

Accelerator

Web server

IP

Port

Host

Path

IP/DNS Host

Port

Host

Path

*

80

www.abc.com

*

www.internal.abc.com

8080

www.internal.abc.com

*

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