Hi
I have the following error in the log
2019/07/11 01:33:38 [error] 31488#31488: *6 connect() failed (111: Connection refused) while connecting to upstream, client: 186.6.129.22, server: 127.0.0.1, request: “GET /favicon.ico HTTP/1.1”, upstream: “fastcgi://127.0.0.1:9000”, host: “myexample.com:8081”, referrer: “https://myexample.com:8081/”

When I execute nginx -t show me
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

The configuration that I have is
server {

    server_name 127.0.0.1;
    root /var/www/html/moodle;
    index index.php;

    location / {
    try_files $uri /index.php?$query_string;
    }

    location /dataroot/ {
    internal;
    alias /var/moodledata/;
    }

    location ~ [^/]\.php(/|$){
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_index           index.php;
    fastcgi_pass            127.0.0.1:9000;
    include                 fastcgi_params;
    fastcgi_param   PATH_INFO       $fastcgi_path_info;
    fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }

Nginx works well for me when in the configuration disable
root /var/www/html/moodle;
index index.php;

Although what I want is to install moodle 3.6