vim /etc/httpd/conf.d/test.conf
<virtualhost *:80>
documentroot /data/asite
servername www.a.com
<Directory "/data/asite">
Require all granted
</Directory>
</virtualhost>
<virtualhost *:80>
documentroot /data/bsite
servername www.b.com
<Directory "/data/bsite">
Require all granted
</Directory>
</virtualhost>
<virtualhost *:80>
documentroot /data/csite
servername www.c.com
<Directory "/data/csite">
Require all granted
</Directory>
</virtualhost>