一、基于端口（同一个IP，不同的端口）
Listen 80
Listen 8088

NameVirtualHost 192.168.1.7:80
NameVirtualHost 192.168.1.7:8088

<VirtualHost 192.168.1.7:80>
DocumentRoot /var/www/html/site1
ServerName 192.168.1.7:80
</VirtualHost>
<VirtualHost 192.168.1.7:8088>
DocumentRoot /var/www/html/site2
ServerName 192.168.1.7:8088
</VirtualHost>

二、基于IP（不同IP，80端口，最常用最重要)
NameVirtualHost 192.168.1.7:80
NameVirtualHost 192.168.1.8:80

<VirtualHost 192.168.1.7:80>
    DocumentRoot /var/www/html/site1
    ServerName 192.168.1.7:80
</VirtualHost>
<VirtualHost 192.168.1.8:80>
    DocumentRoot /var/www/html/site2
    ServerName 192.168.1.7:80
</VirtualHost>

三、基于主机头（同IP，80端口，不同的FQDN）
NameVirtualHost 192.168.1.7:80

<VirtualHost www.softscape.com>
    DocumentRoot /var/www/html/site1
    ServerName www.softscape.com
</VirtualHost>
<VirtualHost www1.softscape.com>
    DocumentRoot /var/www/html/site2
    ServerName www1.softscape.com
</VirtualHost>