如何隐藏nginx版本号：

[root@localhost /]# vi /etc/nginx/nginx.conf
[root@localhost /]# nginx -t
[root@localhost /]# nginx -s reload

配置文件中，http区段中插入“server_tokens  off;”，重新载入配置文件

worker_processes  1;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    server_tokens  off;
    expires         5s;
    sendfile        on;

隐藏或修改nginx返回的Server信息：

[root@localhost /]# vi /opt/nginx/nginx-1.2.0/src/http/ngx_http_special_response.c 
找到29行：修改展示名称(LLSERVER)
[root@localhost /]# "<hr><center>LLSERVER</center>" CRLF 
[root@localhost /]# cd /opt/nginx/nginx-1.2.0/src/http/ngx_http_header_filter_module.c 
[root@localhost /]# vi /opt/nginx/nginx-1.2.0/src/http/ngx_http_header_filter_module.c 
找到49和50行： 修改展示名称(Server: LLSERVER)
[root@localhost /]# static char ngx_http_server_string[] = "Server: LLSERVER" CRLF; 
[root@localhost /]# static char ngx_http_server_full_string[] = "Server: LLSERVER " NGINX_VER CRLF;