重启Apache出现警告信息Could not reliably determine the server's fully qualified domain name,

1.错误描述：

重启Apache服务出现下列警告：

 service apache2 restart 
 * Restarting web server apache2
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 192.168.1.1. Set the 'ServerName' directive globally to suppress this message
 ...done.

2.错误解决（ubuntu）：

在/etc/apache2/apache2.conf配置文档中加入下面的一句：

ServerName 127.0.0.1:80

再次重启Apache服务后，警告消除

root@server:~# service apache2 restart
 * Restarting web server apache2
   ...done.
root@server:~#