The Global URL Settings tab hosts additional configuration settings that pertain to the URL Set, and so it is time to introduce it. We will talk about the URL Set tab first, and then go back to the Global URL Settings.
The URL Set, also known as URL List, Rule Set or Security Rules is one of the most important security mechanisms within UAG. This is basically an engine that checks each web request that UAG receives from clients against a list of rules, and determines if it is to be allowed or denied. This engine is extremely powerful, as it allows the administrator to configure what is OK and what is not with a high level of granularity. We have already glimpsed at these rules earlier, in Chapter 3, and soon we will learn how to configure it.
The URL Set is a list of rules that define URL patterns (using our favourite mechanism: Regular Expressions), and how UAG should handle them. When you publish applications on the portal, some application templates...