systemctl stop firewalld.service #停止firewall 
  systemctl disable firewalld.service #禁止firewall开机启动 

vi /etc/selinux/config 
#SELINUX=enforcing #注释掉 
SELINUX=disabled #增加 
:wq! #保存退出 
setenforce 0 #使配置立即生效

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 

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

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

 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; 
  } 

在 /usr/share/nginx/html中新建一个test.php <"htmlcode">

  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; 
    } 




9.域名修改  把上面site,localhost改为www.a.com
Lamp安装
1.安装apache


yum install httpd #根据提示，输入Y安装即可成功安装 
  systemctl start httpd.service #启动apache 
  systemctl stop httpd.service #停止apache 
  systemctl restart httpd.service #重启apache 
  systemctl enable httpd.service #设置apache开机启动 



2.安装mariadb（MySQL）


 yum install mariadb mariadb-server #询问是否要安装，输入Y即可自动安装,直到安装完成 
  systemctl start mariadb.service #启动MariaDB 
  systemctl stop mariadb.service #停止MariaDB 
  systemctl restart mariadb.service #重启MariaDB 
  systemctl enable mariadb.service #设置开机启动 



3.修改mysql密码，安装后默认为空
修改mysql密码：set password for 'root'@'localhost'=password('root');


mysql授权远程连接（navicat等）： grant all on *.* to root identified by 'root'; 


4.安装PHP以及组件，使PHP支持 MariaDB


yum install php php-mysql php-gd libjpeg* php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-bcmath php-mhash 
#这里选择以上安装包进行安装，根据提示输入Y回车 
systemctl restart mariadb.service #重启MariaDB 
systemctl restart httpd.service #重启apache



5.访问测试


cd /var/www/html
vi index.php #输入下面内容
 <?php
  phpinfo();
?>
:wq! #保存退出


在客户端浏览器输入服务器IP地址，可以看到如下图所示相关的配置信息！
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