So far, I've only talked about using setroubleshoot on text-mode servers. After all, it's very common to see Linux servers running in text-mode, so all of us Linux folk have to be text-mode warriors. But on desktop systems or on servers that have a desktop interface installed, there is a graphical utility that will automatically alert you when setroubleshoot detects a problem:

Click on that alert icon, and you'll see the following:

Click the Troubleshoot button, and you'll see a list of suggestions on how to fix the problem:

As is often the case with GUI thingies, this is mostly self-explanatory, so you shouldn't have any problem figuring it out.