nginx中隐藏响应头/返回头信息/php版本号/服务器信息

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    index index.php index.html index.htm;
    server_tokens off;
 
    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  65;
 
    #gzip  on;
 
    include /etc/nginx/conf.d/*.conf;
}

; Decides whether PHP may expose the fact that it is installed on the server
; (e.g. by adding its signature to the Web server header).  It is no security
; threat in any way, but it makes it possible to determine whether you use PHP
; on your server or not.
; http://www.php.net/manual/en/ini.core.php#ini.expose-php
expose_php = Off