I followed this tutorial. How To Install WordPress with LEMP on Ubuntu 16.04(https://www.digitalocean.com/community/tutorials/how-to-install-wordpress-with-lemp-on-ubuntu-16-04) - I also followed Prerequisites.
Wordpress site works well with letsencrypt.
I tried How To Set Up WordPress Multisite with Nginx on Ubuntu 14.04 (https://www.digitalocean.com/community/tutorials/how-to-set-up-wordpress-multisite-with-nginx-on-ubuntu-14-04).
How can I set up Wordpress Multisite with exsisted wordpress site.
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