I Installed Yii2.0,and Then How To Visit My Website

my website root is located at /var/www/site1/public_html

I install yii2.0 at /var/www/site1/public_html/yii2 (the position of file yii is /yii2/yii)

I want to know

  1. how to visit my website ,is the url /frontend/web/index.php?

  2. where the document_root should located ? should i move the document_root from /var/www/site1/public_html to /var/www/site1/public_html/yii2/frontend/web ?

help me…