站点启用/中不允许使用 nginx“mail”和“stream”指令

当我尝试在 nginx 中使用流或邮件指令时遇到问题。 我正在使用 nginx/1.16.1 和 Ubuntu 18.04.4 LTS。
这是我的 nginx.conf

user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 1200;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    server_tokens off;

    server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log off;
                    #/var/log/nginx/access.log;
    error_log /var/log/nginx/error_website.log;
    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.websiteconf;
    include /etc/nginx/sites-enabled/*.websiteconf;
}

我想在我的站点配置之一（test.streamconf）中使用“stream”指令

stream {
            server {
                    listen 500 udp;
                   proxy_pass test.com:500;
            }
            server {
                    listen 4500 udp;
                    proxy_pass test.com:4500;
            }
}

但是，如果我为启用站点的文件夹创建符号链接并使用“sudo nginx -t”测试我的配置，我会收到以下错误消息：

nginx：[emerg]此处不允许使用“stream”指令 /etc/nginx/sites-enabled/test.streamconf:1
nginx：配置文件/etc/nginx/nginx.conf测试失败

The stream and mail module is already installed...

我有什么错吗？

好吧，现在我明白了。 nginx 加载嵌套的各个配置。
我现在已将以下所有根添加到 nginx.conf 中：

user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 1200;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    server_tokens off;

    server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log off;
                    #/var/log/nginx/access.log;
    error_log /var/log/nginx/websiteerror.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml appl$

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.websiteconf;
    include /etc/nginx/sites-enabled/*.websiteconf;
}


stream {
    access_log off;
    error_log /var/log/nginx/streamerror.log;

    include /etc/nginx/conf.d/*.streamconf;
    include /etc/nginx/sites-enabled/*.streamconf;
}

我的“流”配置文件现在看起来像这样（我想我也必须在这里从“流”开始）......

server {
    listen  [::]:4500 ipv6only=off;
    listen  [::]:500 ipv6only=off;
    proxy_pass      server_name.com:$server_port;
    proxy_protocol  on;
}