进入到Apache的配置文件：cd /etc/httpd/conf/http.conf
在后面添加：
<VirtualHost *:80> ???# This first-listed virtual host is also the default for *:80 ???ServerName www.example.com ???ServerAlias example.com ????DocumentRoot "/var/www/html/"</VirtualHost>
详细参考官网：http://httpd.apache.org/docs/2.4/vhosts/name-based.html
一个服务器的Apache2.4.6配置多个域名
原文地址：https://www.cnblogs.com/wanyong-wy/p/9257787.html