We have now gone through some real-world deployment scenarios. These are the common scenarios right now, but you can imagine that there are a lot more available.

As we can see, the global server load balancing feature is a feature that fits best in all the scenarios. This is because the load balancing is based on DNS instead of IP addresses. This allows us to configure one DNS entry for both data centers per resource. Also, the user needs to remember one URL per resource instead of knowing the IP addresses of both data centers and figuring out which IP address is the active one.

In most scenarios, it's best to use a physical appliance because of the traffic that will flow through Citrix NetScaler.

Throughout this book, we have written the most common features that Citrix NetScaler has to offer. These features were explained as much as possible, but of course, not all information can fit in one book. So, if you are interested in learning more about the features of Citrix NetScaler and checking out news about it, we encourage you to visit the following websites and links: