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Barracuda Load Balancer ADC

Configuring Cloaking

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Cloaking prevents leakage of information about a website or service that is vulnerable to web attacks. HTTP headers and return codes are concealed before sending a response to a client. The response headers are filtered based on the headers defined in the Headers to Filter field found under Additional Options.

When Suppress Return Code is set to Yes, the Barracuda Load Balancer ADC inserts a default or custom response page in case of any error responses from the server. Typically, the Barracuda Load Balancer ADC uses the default response page for error responses from the server. You can also define a custom response page by navigating to the SECURITY > Libraries page, scrolling to the Response Pages section, and clicking Add Response Page.

Cloaking features include:

  • Removing banner headers, such as "Server" etc., from responses.
  • Blocking client error (status code 4xx) and server error (status code 5xx) responses.

To configure cloaking, complete the following steps:

  1. Navigate to Security > Security Policies.
  2. Select a policy from the Policy Name list or create a New Security Policy.
  3. Scroll to the Cloaking section and configure the cloaking settings as necessary. See the online help for additional information.
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