To automatically redirect every request to / (root) to /login in an IIS (Internet Information Services) environment with .NET, you can do this by adding a redirect rule in your web.config file. Here's how to set it up:

1. Open your web.config file, which is located in the root of your web application.

2. Inside the section, add a rewrite rule like the following:

Explanation:

matches the root URL / (an empty string after the domain).

performs a 301 permanent redirect to /login.

This ensures that only the root (/) is redirected to /login, and requests to other URLs like /t will not be affected.