Hello, Guys!

I'm a newbie with Nginx. I'm thinking something is it possible to redirect to random domains. For example, I have several domains
mydomain.com
mydomain1.com
mydomain2.com
mydomain3.com
All domains are pointed to the same site which is hosted on one server. Is it possible when I request my default domain mydomain.com to choose randomly and redirect to one domain from the pool? I tried with rewrite rules, upstream balancing module also maps config with default domain and others. But no success.

Thanks! :)