一、准备三台主机

192.168.100.11         mysql

192.168.100.12         nginx

192.168.100.13         php

二、关闭防火墙及安全策略

 systemctl stop firewalld

 setenforce 0

 三、安装nginx（192.168.100.11）

1、添加nginx源

vim /etc/yum.repos.d/nginx.repo
[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1

2、yum下载nginx

yum install nginx -y                          #--安装nginx
nginx -v                                            #--查看nginx版本

3、启动nginx

systemctl start nginx.service        
systemctl enable nginx.service 

四、安装mysql（192.168.100.12）

1、安装mysql

yum remove mariadb* -y

2、配置

cd /etc/yum.repos.d

wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm

#---解析主机地址，使用阿里源
yum -y install mysql57-community-release-el7-10.noarch.rpm

#--下载mysql源
sed -i 's/gpgcheck=1/gpgcheck=0/' mysql-community.repo

#--修改源文件

yum -y install mysql-community-server

#--安装mysql

3、启动mysql

systemctl start mysqld.service
systemctl enable mysqld.service

 4、获取mysql初始密码

grep "password" /var/log/mysqld.log | awk '{print $NF}'

#--在日志文件中找出root用户的初始密码

 5、登录mysql

mysql -uroot -p
Enter password:         #输入初始密码 Q3ua.n-36/-R

ALTER USER 'root'@'localhost' IDENTIFIED BY 'Admin@123';     #更改密码

yum -y remove mysql57-community-release-el7-10.noarch   #--卸载mysql自动更新

五、安装php

1、安装php

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm 
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

#--失败就多试几次

yum -y install php72w php72w-cli php72w-common php72w-devel php72w-embedded php72w-gd php72w-mbstring php72w-pdo php72w-xml php72w-fpm php72w-mysqlnd php72w-opcache
 

 2、启动php

systemctl start php-fpm
systemctl enable php-fpm

3、配置php

useradd -M -s /sbin/nologin php         #--创建php用户 

vim /etc/php.ini
date.timezone = Asia/Shanghai

vim /etc/php-fpm.d/www.conf
user = php
group = php
listen = 192.168.80.12:9000
listen.allowed_clients = 192.168.80.10

六、配置nginx支持php

cd /etc/nginx/conf.d
vim default.conf
......
    location ~ \.php$ {
        root           /www;
        fastcgi_pass   192.168.80.12:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;  # $document_root 和 root 属性一样
        include        fastcgi_params;
    }

systemctl restart nginx

vim /www/index.php
<?php
phpinfo();
?>

vim /www/test.php
<?php
$link=mysqli_connect('192.168.80.11','root','Admin@123');
if($link) echo "<h1>Success!!</h1>";
else echo "Fail!!";
?>