无法在LEMP Stack NGINX上设置子域

Question

我在Vultr上托管了一个VPS，并且在过去12个小时里一直在挣扎。问题是我试图设置一个子域，但是在任何地方都找不到标准配置。我看到的大多数博客或stackoverflow问题的根文件夹位于/ var / www。我正在使用的一个具有在usr / share / nginx / html

上配置的根目录

此外，etc / nginx上的配置文件显示以下内容

从VULTR中采样LEMP虚拟主机文件。默认的NGINX文件位于/var/default-conf/nginx/conf.d

/var/default-conf/nginx/conf.d中的conf.d文件具有以下代码

server {
listen       80;
server_name  domainname.com;

#charset koi8-r;
#access_log  /var/log/nginx/host.access.log  main;

location / {
    root   /usr/share/nginx/html;
    index  index.php index.html;
}

#error_page  404              /404.html;

# redirect server error pages to the static page /50x.html
#
error_page   500 502 503 504  /50x.html;
location = /50x.html {
    root   /usr/share/nginx/html;
}

# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
#    proxy_pass   http://127.0.0.1;
#}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
#    root           html;
#    fastcgi_pass   127.0.0.1:9000;
#    fastcgi_index  index.php;
#    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
#    include        fastcgi_params;
#}

# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
#    deny  all;
#}
}
server {
listen       80;
server_name  subdomain.domainname.com;

#charset koi8-r;
#access_log  /var/log/nginx/host.access.log  main;

location / {
    root   /usr/share/nginx/html/subdirectory;
    index  index.php index.html;
}

#error_page  404              /404.html;

# redirect server error pages to the static page /50x.html
#
error_page   500 502 503 504  /50x.html;
location = /50x.html {
    root   /usr/share/nginx/html;
}

# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
#    proxy_pass   http://127.0.0.1;
#}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
#    root           html;
#    fastcgi_pass   127.0.0.1:9000;
#    fastcgi_index  index.php;
#    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
#    include        fastcgi_params;
#}

# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
#    deny  all;
#}
}

问题在于，即使我访问子域，它也会在根文件夹中显示该站点。我成功地为主域和子域都设置了SSL证书。但是，子域不会从文件夹中提取文件。

任何帮助将不胜感激。