Updates, patches, and hotfixes are published in update archives. Depending on the deployment type, the update process differs. The firewall must be able to access the following Barracuda services to access the downloads:
Updating a CloudGen Firewall
You can update a CloudGen Firewall using the web interface or on the command line. If the firewall can access the Barracuda update servers, download and install the updates directly from the web interface. For firewalls that do not have access to the download server, or if the update is not available in the web interface, you can also manually install the update.
Updating a High Availability Cluster
To avoid downtime when updating a high availability cluster, you must update only the firewall that is in standby and then transfer the virtual server to the updated unit before the firmware is updated on the other firewall as well.
For more information, see How to Install Updates via Web Interface.