413 请求实体太大 nginx

>我正在尝试通过更改nginx.conf将PHP应用程序的上传限制增加到512MB，如下所示-

#user  nginx;
worker_processes  1;
#error_log  /var/log/nginx/error.log;
#error_log  /var/log/nginx/error.log  notice;
#error_log  /var/log/nginx/error.log  info;
#pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    client_max_body_size 512M;
    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
    #access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    #tcp_nopush     on;
    #keepalive_timeout  0;
    keepalive_timeout  6500;
    #tcp_nodelay        on;
    #gzip  on;
    #gzip_disable "MSIE [1-6]'.(?!.*SV1)";
    server_tokens off;
    include /etc/nginx/conf.d/*.conf;
}

但是，它似乎仍然被限制在120MB。

有人可以帮忙进行更改以接受超过 120mb 的文件

谢谢。。