Why when I create a new virtual server through virtualmin it appears in the server block this stranger 312875697458.sock?

because when I create a new virtual server through virtualmin, it appears in the server block of this type of socket !? fastcgi_pass unix: /var/php-nginx/35136489157366.sock/socket;

I was accustomed to create via commando aline just make a copy of the dafault with the name domain name in the name of the new virtul server, so I empty all the changes manually, I do not understand why this strange sockets! I decided to work with:

                 previously defined in /etc/php/7.0/fpm/pool.d/www.conf

I do work, but is this by chance an incorrect way of working with virtualmin?

that would be the truth: do not try to do manual what virtualmin does automatically?

this thing: 35136489157366.sock is some kind of virtualmin variable that we can not tinker with? because virtualmin automatically sets things up correctly according to what I do and /etc/php/7.0/fpm/pool.d/www.conf

I have a few stops on my server, and the logs are empty! I do not know if it's because I make the settings manually

but why do I manually do it already works with 35136489157366.sock?

because I do not know what this means above! I only know                 

but why do I manually do it already works with 35136489157366.sock?

because I do not know what this means above! I only know

I really appreciate your help!