Centos7下通过yum搭建apache+php+mysql服务器

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　　1.关闭防火漆
systemctl stop firewalld.service#关闭防火墙
systemctl disable firewalld.service#禁止防火墙开机启动　　2.安装apache

yum install httpd -y
systemctl start httpd.service　　3.安装php

　　更新软件仓库
rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm　　安装PHP及插件

yum install -y php56w php56w-opcache php56w-xml php56w-mcrypt php56w-gd php56w-devel php56w-mysql php56w-intl php56w-mbstring　　4.安装mysql

　　提前安装net-tools工具,下载地址ftp://mirror.switch.ch/pool/4/mirror/centos/7.3.1611/os/x86_64/Packages/net-tools-2.0-0.17.20131004git.el7.x86_64.rpm
下载mysql完整压缩包,下载地址

http://cdn.mysql.com//Downloads/MySQL-5.6/MySQL-5.6.35-1.el6.x86_64.rpm-bundle.tar
　　将这两个文件放到/usr/local/src文件夹下
cd /usr/local/src
rpm -ivh net-tools-2.0-0.17.20131004git.el7.x86_64.rpm#根据具体版本确定
tar xvf MySQL-5.6.35-1.el6.x86_64.rpm-bundle.tar#解压缩mysql的rpm组合包　　安装MySQL-client-5.6.35-1.el6.x86_64.rpm
rpm -ivh MySQL-client-5.6.35-1.el6.x86_64.rpm　　安装MySQL-devel-5.6.35-1.el6.x86_64.rpm
rpm -ivh MySQL-devel-5.6.35-1.el6.x86_64.rpm　　卸载当前系统的mariadb
rpm -qa | grep mariadb
rpm -e --nodeps `rpm -qa | grep mariadb`　　安装MySQL-server-5.6.35-1.el6.x86_64.rpm
rpm -ivh MySQL-server-5.6.35-1.el6.x86_64.rpm
systemctl start mysql.service　　此时mysql安装完成,但由于不知道密码无法进入

　　5.重置mysql密码
　　关闭mysql服务
systemctl stop mysql.service　　绕过密码验证
mysqld_safe --user=mysql --skip-grant-tables--skip-networking
#提示一下内容后
161212 15:10:30 mysqld_safe Logging to '/var/lib/mysql/localhost.localdomain.err'.
161212 15:10:30 mysqld_safe A mysqld process already exists
按Ctrl+c终止　　输入用户登录命令

mysql -u root mysql
UPDATE user SET Password=PASSWORD('your_password') where USER='root';
#将your_password改为自己的密码
FLUSH PRIVILEGES;#更新
quit#退出mysql
systemctl start mysql.service#启动mysql　　这是数据库依旧不能使用,登录会提示
You must SET PASSWORD before executing this statement　　解决办法
mysql -u root -p your_password
SET PASSWORD  = PASSWORD('your_new_password');　　至此,mysql安装成功.