Chapter 14: Working with ClusterXL High Availability

One of the first objects we created in our lab was a cluster consisting of two gateways. Generally, the term cluster is applied to a group of computers performing identical tasks. High-availability (HA) clusters are those that are designed to provide fault tolerance, maintaining uninterrupted functionality in the case of a failure of one or more of their members. Our cluster is running in HA mode, and it is time for us to take a closer look at how it works and at a few tools that we can use for its routine maintenance, diagnostics, and operation.

Considering the importance of firewalls and threat prevention gateways in any environment, often, it is imperative to assure their survivability ...

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