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Barracuda SSL VPN
Overview Documentation

This Product is End-of-Life and End-Of-Support

End-Of-Life and End-Of-Support on December 1st, 2020: All Barracuda SSL VPN sales will cease; neither new sales nor any renewals will be available. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support and services until your contract expires. Please see the End-Of-Life definition as described in the End of Support and End of Life Information.

How to Configure a Server Agent

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The Barracuda Server Agent is used to proxy traffic for resources located in a network which can not be reached directly by the Barracuda SSL VPN. For this example the client will request a web resource hosted on the a.example.com server in the intranet. The Barracuda SSL VPN will use the server agent installed on one of the local servers in the network to connect to the a.example.com server and forward the traffic to the client.

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Step 1. Install the Server Agent client

For every network you want to connect to the Barracuda SSL VPN with a Server Agent, install the client on a system in the network that can reach all the resources you want to access via the SSL VPN.

  1. Log into the SSL VPN web interface.
  2. Open the Manage System > ADVANCED > Server Agents page.
  3. In the Download Clients section, click on the download link for your operating system.

After installing the software package, enter the IP address and authentication information for your Barracuda SSL VPN. The Server Agent will automatically register with the Barracuda SSL VPN. The Server Agent is now listed in the Agents section on the Manage System > ADVANCED > Server Agents page.

Step 2. Authorize the Server Agent

You need to authorize the Server Agent(s) after the initial connection.

  1. Log into the SSL VPN web interface.
  2. Open the Manage System > ADVANCED > Server Agents page.
  3. In the Agents section, locate the Server Agent with the red indicator icon and click More.
  4. Select Authorize. 

The indicator icon is now green. If the indicator icon is yellow, the Server Agent is offline or blocked.

Step 3. Create routes

Routes are used to tell the Barracuda SSL VPN which Server Agent is responsible for a particular resource. You can define multiple routes for every Server Agent.

  1. Log into the SSL VPN web interface.
  2. Open the Manage System > ADVANCED > Server Agents page.
  3. In the Create Route section, enter the following information:
    • Name – Enter a name.
    • Host Pattern – Enter a host pattern. This can be an IP address or a domain. Wildcards are allowed. E.g., 10.0.100.* or *.myco.com
    • Port Pattern – Enter a single port, or port range that applies to the resources using this server agent. E.g., 800*
    • Server Agent – Select the Server Agent from the list.
  4. Click Add.

The routes are now visible in the Routes section. If you want to move a route to a different Server Agent, edit the Server Agent configuration in the Agents list.