Using nginx-1.4.2 on Linux.

Trying to get nginx to work on my local linux system for a moodle install.

These are the official moodle docs for such an install.

https://docs.moodle.org/39/en/Nginx

According to these docs, there should be a "location" directive in nginx.conf. But when I try that, I get:

# cat error.log
2020/08/23 17:01:32 [emerg] 27985#27985: "location" directive is not allowed here in /etc/nginx/nginx.conf:87

Looking at the configuration files in the /etc/nginx directory, I wonder if "location" or "server" directives are supposed to be in the nginx.conf file, or maybe the sites-enabled/default or maybe sites-available/default, or some other file? I have the "location" directive at the end of the file.

Or maybe I'm supposed to put the "location" directive some other place in the nginx.conf file?