How to open access to hosts, nginx?

Question

Nginx

Good afternoon. Please tell me this question.
There is a squid proxy on board (it was configured before me), the problem is that when authorizing on a web resource, the plugin of this resource does not work correctly. Tech support said it is necessary to provide access to hosts, for example:
gleb.company.ru on ports 80, 443, 55331;
The lead engineer said that this should be configured through nginx, but I still don’t understand what does nginx have to do with it if squid is on board. What commands are responsible for this and how to configure it correctly?
PS The site is not local, but the Internet.
Thank you in advance.

Answer 1

task conditions are not complete

Answer 2

Give the command on the command line in the desired directory:grep access squid.conf