[Linux] yum安装分布式LNMP架构

news2024/11/13 9:17:58

1. 在一台主机安装nginx（192.168.136.120）

1.1 搭建nginx相关的yum源

cd /yum.repos.d
mkdir bak
mv *.repo bak
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 安装启动nginx服务

yum install nginx -y 
nginx -v

systemctl start nginx
systemctl enable nginx

2. 在另一台主机安装mysql（192.168.136.130）

2.1 wget mysql相关的yum源

yum remove mariadb* -y   #卸载一切与mysql有关的包

cd /etc/yum.repos.d

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
sed -i 's/gpgcheck=1/gpgcheck=0/' mysql-community.repo
yum -y install mysql-community-server
注意 ： wget默认会将下载的安置在当前目录

2.2 启动mysql服务并且做一些初步设置

systemctl start mysqld.service
systemctl enable mysqld.service

过滤出密码并登录，修改默认密码

grep "password" /var/log/mysqld.log			#在日志文件中找出root用户的初始密码
2021-07-31T07:55:00.366359Z 1 [Note] A temporary password is generated for root@localhost: ga7%<d<0*jD&

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

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

2.3 停止自动更新

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

三、在第三台主机安装php（192.168.136.140）

3.1 获取php的相关yum源

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

systemctl start php-fpm
systemctl enable php-fpm  #启动服务和设置开机自启
php -v   #查看版本号，同时也可以测试php的基础功能是否可以使用

这玩意我安装太慢了，几kb/s，没贴图！！！

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：

location ~ \.php$ {
        root           html;
        fastcgi_pass   127.0.0.1:9000;    #本机连接
        fastcgi_index  index.php;
        #fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        fastcgi_param  SCRIPT_FILENAME  /usr/share/nginx/html$fastcgi_script_name; 
          #修改该配置，使其支持nginx的访问设置
        include        fastcgi_params;
    }



nginx -t

保存配置后并重启服务：

systemctl restart nginx

四、LNMP的连接测试（192.168.136.120）

4.1 nginx和php的连接测试

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

4.2 测试mysql是否能连接成功

vim /usr/share/nginx/html/index.php
<?php
$link=mysqli_connect('192.168.136.120','root','Admin@123');
if($link) echo "<h1>Success!!</h1>";
else echo "Fail!!";
?>