wget -c https://nginx.org/download/nginx-1.13.10.tar.gz
tar -zxvf nginx-1.13.10.tar.gz

// 依赖
yum install gcc 
yum install pcre pcre-devel
yum install zlib zlib-devel
yum install openssl openssl-devel


// 编译安装
./configure
make && make install

whereis nginx   // 查找安装位置
/usr/local/nginx/conf   // 配置
/usr/local/nginx/logs   // 日志


ln -s /usr/local/nginx/sbin/nginx /usr/local/bin/nginx

nginx           // 启动
nginx -t        // 检查配置文件是否正确
nginx -c /etc/nginx.conf    // 启动nginx，并制定配置文件
nginx -s stop       // 相当于查出nginx的进程id然后kill
nginx -s quit       // 待nginx进程处理完毕进行停止
nginx -s reload    
nginx -s reopen                                                                                                                                                                                                                             

ps -aux | grep nginx

# nginx.conf文件
http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format myformat '$http_host - $remote_addr - $remote_user [$time_local] "$request" '
	        '$status $body_bytes_sent "$http_referer" '
	        '"$http_user_agent" $http_x_forwarded_for '
		'"$upstream_addr" "$upstream_status" "$upstream_response_time" "$request_time"';

    # myformat为定义的日志格式
    access_log  logs/access.log  myformat;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    # 引入配置
    include site/*.conf;
}

upstream demo {
      #weigth参数表示权值，权值越高被分配到的几率越大
      server x.x.x.x:8080 weight=1;
      server x.x.x.x:8090 weight=1;
}

server {
      listen       80; 
      server_name  liangzai.pub;

      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header REMOTE-HOST $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      #charset koi8-r;

      #access_log  logs/host.access.log  main;

      location / { 
          #请求转向upstream 名称 定义的服务器列表
          proxy_pass    http://demo ;
 
          # Forward the user's IP address to Rails
          # real_ip_header X-Real-IP;
    }   
}