1. nginx 的yum安装

1.1 搭建nginx相关的yum源

注意：本次安装所获得的软件包都是来源于httpd源（都是由该软件包厂商提供）。所以切记不能像往常一样直接使用本地源去安装一切包

vim /etc/yum.repos.d/nginx.repo
[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0

enabled=1

1.2 刷新yum仓库，安装启动nginx服务

yum clean all && yum makecache
yum install nginx -y
nginx -v

systemctl start nginx
systemctl enable nginx

2. mysql的yum 安装

2.1 卸载一切与mysql有关的包

——为了新mysql版本的包做环境准备，以免老版本干扰新版本的植入

yum remove mariadb* -y

2.2 wget mysql相关的yum源

注意： wget默认会将下载的安置在当前目录

cd /opt
wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
yum -y install mysql57-community-release-el7-10.noarch.rpm
（注意：当这一步执行完成以后，会在/etc/yum.repos.d中
生成mysql-community.repo 和mysql-community-source.repo ）

cd /etc/yum.repos.d

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

yum -y install mysql-community-server

2.3 启动mysql服务并且做一些初步设置

systemctl start mysqld.service
systemctl enable mysqld.service
systemctl status mysqld.service

yum安装的数据库初始密码的查看:

grep "password" /var/log/mysqld.log #在日志文件中找出root用户的初始密码
grep "password" /var/log/mysqld.log | awk '{print $NF}'

数据库密码修改

mysql -u root -p

ALTER USER 'root'@'localhost' IDENTIFIED BY 'Admin@123'; #密码设置要求有大小写字母、数字和符号组合

grant all privileges on *.* to root@"%" identified by "Admin@123" with grant option; #允许所有通过数据库密码访问的主机
flush privileges; #刷新数据库

2.4 停止版本更新，稳定数据库的运行

yum -y remove mysql57-community-release-el7-10.noarch #为了防止每次yum操作都会自动更新，卸载这个软件

3. php的yum安装

3.1 获取php的相关yum源

注意：下载保持好网络的畅通性。

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

3.2 安装相关的依赖拓展模块

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 \
php72w-redis

systemctl start php-fpm
systemctl enable php-fpm
php -v

3.3 nginx支持php的解析

cd /etc/nginx/conf.d
//给default.conf 做一个备份，防止配置修改错误，无法还原
cp default.conf default.conf.bak

修改php的默认配置：

vim /etc/nginx/conf.d/default.conf
......
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; #将 /scripts 修改为nginx的工作目录
include fastcgi_params;
}

保存配置后并重启服务：

systemctl restart nginx

4. lnmp的连接测试

4.1 nginx和php的连接测试
创建php页面测试，进行访问测试

cd /usr/share/nginx/html
vim index.php
<?php
phpinfo();
?>

4.2 lnmp的连接测试

vim /usr/share/nginx/html/index.php
<?php
$link=mysqli_connect('192.168.80.10','root','Admin@123');
if($link) echo "<h1>Success!!</h1>";
else echo "Fail!!";
?>