AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1.

       在Unbuntu中重启Apache服务器出现错误：AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1.等等。解决方法：

       $ sudo vim /etc/apache2/apache2.conf

     

      最后加入一句: ServerName localhost:80