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安装nginx

    yum install yum-priorities -y
    wget http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
    rpm -ivh nginx-release-centos-7-0.el7.ngx.noarch.rpm
    yum install nginx
    systemctl start nginx.service #启动nginx
    systemctl stop nginx.service #停止
    systemctl restart nginx.service #重启
    systemctl enable nginx.service #设置开机启动

更改nginx端口号（根据自己需求 例如：LAMP&&LNMP双环境同时存在）

    cd /etc/nginx/conf.d/
    vim default.conf
    把listen 80改成listen 81
    systemctl restart nginx.service #重启nginx

访问http://ip:81即可看到nginx首页

安装php-fpm

 yum install php-fpm
    systemctl start php-fpm.service #启动php-fpm
    systemctl enable php-fpm.service #设置开机启动

更改nginx配置文件识别php

vi /etc/nginx/conf.d/default.conf，把之前的#给去掉就可以了，顺手改一下fastcgi_param

    location ~ \.php$ {
        root           html;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  /usr/share/nginx/html/$fastcgi_script_name;
        include        fastcgi_params;
    }

负载配置

    upstream site{
            server 172.16.170.138;
            server 172.16.170.139;
    }
    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;
        #access_log  /var/log/nginx/log/host.access.log  main;

        location / {
            root   /usr/share/nginx/html;
            index  index.html index.htm;
            proxy_pass http://site;
        }