Change the URL root path in ASP.NET MVC or IIS - asp.net

Question

I'm working with a server with a custom URL: http://example.com/site/ and as you can see I need to change the default root path ("/") of my application to prevent 404 errors. Using IIS rewrite module with a outbound rule seems to work, with all html links and references being converted properly to query the internal website. The problem is when a Redirect() or RedirectToAction() method is used in my controllers, the internal name of the website is dropped so a 404 is caused. This is my IIS outbound rule:
<rewrite>
<outboundRules>
<rule name="Add path prefix to urls" stopProcessing="true">
<match filterByTags="A, Form, Img, Link, Script" pattern="^/(.*)" />
<action type="Rewrite" value="/site{R:0}" />
</rule>
</outboundRules>
</rewrite>
So to clarify: I have http://example.com/site/ when a redirection occurs to Account/Login, it becomes http://example.com/account/login instead of http://example.com/site/account/login . I guess the RouteConfig has to be tinkered with but I don't know how, or if I can do this in IIS. I have the following in my RouteConfig class:
routes.MapRoute(
name: "SiteRoot",
url: "site/{controller}/{action}",
defaults: new { controller = "Home", action = "Index" }
);
routes.MapRoute(
name: "Default",
url: "{controller}/{action}",
defaults: new { controller = "Home", action = "Index" }
);
Thank you.

Answer 1

Assuming the issue is only with pages protected by the authorize annotation, you probably need to update the /App_Start/Startup.Auth.cs file to change the login path. You're looking for LoginPath = new PathString("/Account/Login"), which you'll change to LoginPath = new PathString("/site/Account/Login"),. In the MVC 5 starter site I tested in this was on line #28.
In my testing with your redirect rule and route configuration normal RedirectToActions worked fine, but if you're having trouble you might try removing the "Default" route mapping so that URL structure isn't selected by the router when trying to redirect.