我的nginx和PHP是装在同一台服务器，这里如果要配置socket方式该如何操作呢，环境如下
1、php-fpm的socket文件：
/var/opt/remi/php74/run/php-fpm/www.sock

2、nginx的虚拟服务站点的配置如下
server {
listen 80;
server_name 阿里申请的域名;

access_log  /var/log/nginx/audio.access.log  main;
root   /opt/app/audio;

location / {
    index  index.php;
}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
    fastcgi_pass   unix:/var/opt/remi/php74/run/php-fpm/www.sock;
    fastcgi_index  index.php;
    include        fastcgi_params;
    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
}

#location / {
#    root   /opt/app/audio;
#    index  index.html index.htm;
#}

#error_page  404              /404.html;

# redirect server error pages to the static page /50x.html
#
error_page   500 502 503 504 404 /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;
#}

}

3、跟踪/var/log/nginx/error.log 得到如下结果
2021/08/05 16:22:28 [crit] 15288#15288: *4 connect() to unix:/var/opt/remi/php74/run/php-fpm/www.sock failed (13: Permission denied) while connecting to upstream, client
权限被限制，将/var/opt/remi/php74/run/php-fpm/www.sock 文件的组权限和用户权限都修改为nginx还是报权限错误

这个问题可以怎么解决