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Barracuda CloudGen Firewall

This Firmware Version Is End-Of-Support

Documentation for this product is no longer updated. Please see End-of-Support for CloudGen Firewall Firmware for further information on our EoS policy.

How to Configure Custom Block Pages and Texts

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The Barracuda NextGen Firewall F-Series uses generic, unbranded block pages by default. You can change the HTML source of these pages to adjust the content and style to fit your needs. Each page has a predefined list of placeholder objects that are replaced on-the-fly by the F-Series Firewall when the block page is delivered to the client. Custom block pages can be used only for services using the Forwarding or Distributed Firewall services. The HTTP proxy does not support custom block pages.

Block PageServiceAction Triggering the Block Page
Access Block PageFirewall Service

Matching Deny or Block access rule with the advanced setting Block Page for TCP 80 set to Access Block Page.

Application Control Block PageFirewall Service / Application ControlConnection blocked due to the action set in the matching application rule.
File Content Block PageFirewall Service / File Content FilteringConnection blocked due to the file content policy set in the matching application rule.
Fail-Close Block PageURL Filter or Virus Scanner not availableThe Fail Close policy for the URL Filter, Virus Scanner, or SSL Interception must be set and:
  • URL Filter or Virus Scanner service is unavailable
  • Configuration settings prevented the virus scanning engine from scanning the file. E.g., Block encrypted archives.
  • SSL Interception is unavailable.
  • Internal errors.
Mail Security Content Scan TextFirewall Service / Mail SecurityPlaceholder text to replace email attachments removed due to the mail security DNSBL check.
Mail Security Virus Scan TextFirewall Service / Mail SecurityPlaceholder text to replace infected email attachments removed by the virus scanner.
Quarantine PageATPPage displayed for users in ATP quarantine.
URL Filter Block PageFirewall Service / URL FilterConnection blocked due to a URL Filter category.
URL Filter Override PageFirewall Service / URL FilterConnection blocked due to a URL Filter policy with the action override.
URL Filter Warning PageFirewall Service / URL FilterConnection blocked due to a URL Filter category.
User Agent Block PageFirewall Service / User Agent FilteringConnection blocked due to the user agent policy set in the matching application rule.
Virus Scanner Block PageVirus Scanner, ATPConnection/Download blocked due to detected malware

In this article

Edit a Block Page

You can use HTML, CSS, and JavaScript code. Images up to 30 kB can be inserted as base64 encoded HTML code.

  1. Go to CONFIGURATION > Configuration Tree > Box > Virtual Servers > your virtual server > Firewall > Response Messages.
  2. Click Lock
  3. In the left menu, click the block page you want to edit.
  4. In the HTML source code window, edit the source code of the block page.

    You can use CSS, JavaScript, and HTML.

  5. Click External View or Update Preview to see the changes in an external browser or the preview area.
  6. (optional) Click Insert Element to insert placeholder values or images into the block page. The available placeholder values depend on the block page.
    block01.png
  7. Click Send Changes and Activate.

Reset a Block Page to the Factory Default

You can reset the block pages to its default value.

  1. Go to CONFIGURATION > Configuration Tree > Box > Virtual Servers > your virtual server > Firewall > Response Messages.
  2. Click Lock.
  3. In the left menu, click on the block page you want to reset.
  4. Click on Restore Default.
    reset_block_page.png
  5. Click Yes.
  6. Click Send Changes and Activate.
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