nginx基本配置

一 查询 ps -ef|grep nginx

root       9612   9519  0 10:50 pts/8    00:00:00 grep nginx
root      21255  41822  0 Mar15 ?        00:01:06 nginx: worker process                   
root      21256  41822  0 Mar15 ?        00:01:06 nginx: worker process                   
root      21257  41822  0 Mar15 ?        00:01:16 nginx: worker process                   
root      21258  41822  0 Mar15 ?        00:01:19 nginx: worker process                   
root      41822      1  0 Jan24 ?        00:00:00 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf

二  执行 cat /etc/nginx/nginx.conf

user root root;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections  10240;
}


http {
    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;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;
}

1. 运行用户 

   user root root;

2 启动进程

   worker_processes auto;

   这样nginx会自动根据核心数为生成对应数量的worker进程。（通常设置成和cpu的数量相等）

   可用的核心数: lscpu 或者

                      cat /proc/cpuinfo | grep 'processor' | wc -l 

3 全局错误日志及PID文件

   error_log /var/log/nginx/error.log;

   pid /var/run/nginx.pid;

4 加载动态模块

include /usr/share/nginx/modules/*.conf

nginx -v
nginx version: nginx/1.10.2

cd /usr/share/nginx/modules/

ls
mod-http-geoip.conf         mod-http-perl.conf         mod-mail.conf
mod-http-image-filter.conf  mod-http-xslt-filter.conf  mod-stream.conf
cat mod-http-geoip.conf 
load_module "/usr/lib64/nginx/modules/ngx_http_geoip_module.so";
cat mod-mail.conf 
load_module "/usr/lib64/nginx/modules/ngx_mail_module.so";

5. 设定http服务器

http {

application/octet-stream

  这个类型会让浏览器认为响应是普通的文件流，并提示用户下载文件

}