linux___nginx(centos)

1.安装nginx需要的依赖库

yum install -y gcc patch libffi-devel python-devel zlib-devel bzip2-devel openssl openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

2.下载源码安装包

cd /opt
wget -c https://nginx.org/download/nginx-1.9.6.tar.gz

3.解压

tar -zxvf nginx-1.12.0.tar.gz    #解压在/opt目录下

4..释放编译文件 开启nginx状态监测功能

cd /opt/nginx-1.12.0
./configure --prefix=/opt/nginx196 --with-http_ssl_module --with-http_stub_status_module

5.编译安装

make && make install

6.启动nginx

cd /opt/nginx112/sbin
./nginx #启动  
/opt/nginx196/sbin/nginx     ##启动nginx

#启动了,然后在浏览器输入 192.168.11.73就能访问到  welcome to nginx页面,


./nginx -s stop #关闭
./nginx -s reload  # 平滑重启 ，修改了nginx.conf之后，可以不重启服务，加载新的配置

7.nginx配置文件所在位置

Nginx主配置文件/etc/nginx/nginx.conf是一个纯文本类型的文件，整个配置文件是以区块的形式组织的。一般，每个区块以一对大括号{}来表示开始与结束。

8.nginx配置相关文档

   worker_processes  5;

#error_log  logs/error.log;

events {
   worker_connections 1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    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  logs/access.log  main;
    sendfile        on;
    keepalive_timeout  65;
    #gzip  on;
    server {
        listen       80;
        server_name  www.qishi5douyu.com;
        
        location / {
            root   /opt/web_server/douyu;
            index  index.html index.htm;
        }
        #error_page  404              /404.html;
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }   
    }   
    server {
        listen 80;
        server_name www.qishi5huya.com;
        location /{ 
            root /opt/web_server/huya;
            index index.html;
        }   
    }   
    server {
        listen 80;
        server_name www.qishi5zhanqi.com;
        location /{ 
            root /opt/web_server/zhanqi;
            index index.html;
        }   
    }   

}

9.为了配合第8步的使用，需要创建一些文件

cd /opt
rm -rf web_server
mkdir -p web_server/huya
mkdir -p web_server/douyu
mkdir -p web_server/zhanqi
touch web_server/huya/index.html
touch web_server/huya/index.html
touch web_server/huya/index.html
分别打开这三个index.html文件
vim index.html
分别添加三个直播网站的源代码内容
然后保存退出

10.修改host（window下）

c:\windowssystem32driversetchosts

192.168.1.197    www.qishi5douyu.com
192.168.1.197    www.qishi5huya.com
192.168.1.197    www.qishi5zhanqi.com



#然后再重启
/opt/nginx196/sbin/nginx -s reload

11.nginx实现负载均衡

# 在http代码块里面,添加配置
upstream qishi_upstream {
    server 192.168.12.200;
    server 192.168.12.253;
}

在location代码块内,添加
location / {
    proxy_pass http://qishi_upstream;
}