I have some URL Rewrite rules at the root of IIS (i.e. not in a specific site). They are at the root because they Route to Server Farm, and apparently that has to be done at the root (I don't see the option for "Route to a Server Farm" when I create a URL Rewrite rule on a site.)
I would like to enable Failed Request Tracing so I can see what's going on with this particular rule, but I don't see a way to enable it at the root, only on a site-by site basis. How do I enable Failed Request Tracing at the root?