最近把vps系统重新安装了一下，更换了系统模版为CentOS7。命令和CentOS6有所不同。

1、更新系统

yum makecache fast
yum update

2、安装apache

yum install httpd

3、安装数据库mariadb

yum install mariadb mariadb-server mariadb-devel

4、安装php和常用库

php php-devel php-common php-cli php-mbstring php-gd php-bcmath php-pdo php-pear php-xml php-xmlrpc php-mysqlnd

5、启动httpd、mysqld

systemctl start httpd.service
systemctl start mariadb.service

6、设置开机自启动服务

systemctl enable httpd.service
systemctl enable mariadb.service

7、配置apache

vim /etc/httpd/conf/httpd.conf

1）添加php支持
找到：

DirectoryIndex index.html

改为：

DirectoryIndex index.html index.php

找到：

AddType application/x-gzip .gz .tgz

在其下面加上以下内容：

AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps

2）添加伪静态

<Directory "/home/live-in.org">
    AllowOverride All
    # Allow open access:
    Require all granted
</Directory>

3）在文件末尾添加虚拟主机配置

<VirtualHost *:80>
DocumentRoot "/home/live-in.org"
ServerName www.live-in.org
ErrorLog logs/live-in.org-error_log
CustomLog logs/live-in.org-access_log common
DeflateCompressionLevel 5
AddOutputFilterByType DEFLATE text/html text/css text/javascript application/x-javascript
</VirtualHost>

<VirtualHost *:80>
DocumentRoot "/var/www/html"
ServerName xxx.xxx.xxx.xxx
</VirtualHost>

PS：xxx.xxx.xxx.xxx填服务器IP

4）调整prefork进程数

<IfModule mpm_prefork_module>
    StartServers          2
    MinSpareServers       2
    MaxSpareServers       3
    MaxClients            4
    MaxRequestsPerChild  500
</IfModule>