Why do we need ssl certificate for nginx in chef-server?

Hi Everyone, I want to know, why do we need ssl certificate for nginx in chef-server ? Where do these certificates getting used exactly ?

They’re used by chef-client to fetch config and report results, and by browsers if you choose to enable the now-deprecated Chef Manage.

The embedded Nginx is used as a single front-end endpoint to multiple chef server backend services, so that’s why the certificate is there and not on, say, chef-server itself.