How to set URLs for links?

Question

Yii

There is a site: site.com
All navigation links should enter this domain site.com
And links to static files site2.com

Answer 1

and what prevents hard-coded links in the navigation to one site, and keep the files in storage anywhere

Answer 2

depending on where you have static files and what server. For example, you can redirect everything that goes into the assets folder using .htaccess anywhere.
At the same time, the links themselves remain as they were, why touch them?