多个站点的定义如下
　　#NameVirtualHost *:80
　　#
　　# VirtualHost example:
　　# Almost any Apache directive may go into a VirtualHost container.
　　# The first VirtualHost section is used for requests without a known
　　# server name.
　　#
　　NameVirtualHost 127.0.0.1:80
　　ServerAdmin [email protected]
　　DocumentRoot /usr/local/tomcat/webapps/ronglian
　　ServerName www.ronglian.com
　　ErrorLog logs/ronglian.com-error_log
　　CustomLog logs/ronglian.com-access_log common
　　ServerAdmin [email protected]
　　DocumentRoot /usr/local/wwwroot/chinaface
　　ServerName www.chinaface.net
　　ErrorLog logs/chinaface.net-error_log
　　CustomLog logs/chinaface.net-access_log common
　　在这里，NameVirtualHost的字段不能省略，否则起apache时报错：
　　VirtualHost 127.0.0.1.80 overlaps with VirtualHost 127.0.0.1:80, the first has precedence, perhaps you need a NameVirtualHost directive——虽然apache能起，
　　同错误描述一样，第二个站点的定义被第一个站点的定义所覆盖，即访问第二个站点指向的其实是第一个
　　NameVirtualHost 字段的端口号不能忽略，否则起apache时报错：
　　VirtualHost 127.0.0.1:80 — mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results
　　[error] VirtualHost 127.0.0.1:80 — mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results——apache不能起
　　如果VirtualHost 字段的端口号确实可用，起apache时报错：
　　VirtualHost 220.231.32.28:0 — mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results——
　　但apache可以启动，访问也正常
　　3 Could not reliably determine the server’s fully qualified domain name
　　加入ServerName 127.0.0.1即可。