Wordpress Plugin Installation - Failed to connect to FTP Server - Safest Solution?

Question

I succesfully set up a VPS LEMP-stack with Wordpress. When I am trying to install plugins from the WP backend, I am prompted with the following message:

To perfo         


        

Answer 1

sudo chown -R www-data:www-data wp_site_root
sudo chmod -R g+rw wp_site_root

solved my problem.