nginx.conf的events，http段一般固定配置

 user nobody nobody;  #使用的用户可以按照实际情况修改

 worker_processes ;   #指定nginx开启的进程数，将其设置为可用的CPU内核数将是一个好的开始

 error_log /usr/local/nginx/logs/nginx_error.log crit;

 pid /usr/local/nginx/logs/nginx.pid;

 worker_rlimit_nofile ; #更改worker进程的最大打开文件数限制。设置后你的操作系统和Nginx可以处理比“ulimit -a”更多的文件，所以把这个值设高，这样nginx就不会有“too many open files”问题了。

 events

 {

     use epoll;

     worker_connections ;

 }

 http

 {

     include mime.types;

     default_type application/octet-stream;

     server_names_hash_bucket_size ;

     server_names_hash_max_size ;

     log_format combined_realip '$remote_addr $http_x_forwarded_for [$time_local]'

     '$host "$request_uri" $status'

     '"$http_referer" "$http_user_agent"';

     sendfile on;

     tcp_nopush on;

     keepalive_timeout ;

     client_header_timeout 3m;

     client_body_timeout 3m;

     send_timeout 3m;

     connection_pool_size ;

     client_header_buffer_size 1k;

     large_client_header_buffers  4k;

     request_pool_size 4k;

     output_buffers  32k;

     postpone_output ;

     client_max_body_size 10m;

     client_body_buffer_size 256k;

     client_body_temp_path /usr/local/nginx/client_body_temp;

     proxy_temp_path /usr/local/nginx/proxy_temp;

     #fastcgi_temp_path /usr/local/nginx/fastcgi_temp;

     #fastcgi_intercept_errors on;

     tcp_nodelay on;

     gzip on;

     gzip_min_length 1k;

     gzip_buffers  8k;

     gzip_comp_level ;

     gzip_http_version 1.1;

     gzip_types text/plain application/x-javascript text/css text/htm application/xml;

    include vhosts/*.conf; （虚拟主机）

 }