[问题]关于apache架设虚拟服务器出的错 [已解决]

[9981]

9981@ubuntu_server:/etc/apache2/sites-available$ sudo /etc/init.d/apache2 restart
* Forcing reload of apache 2.0 web server... [Sat Nov 10 13:08:07 2007] [error] (EAI 2)Name or service not known: Failed to resolve server name for ***.***.***.*** (check DNS) -- or specify an explicit ServerName
[Sat Nov 10 13:08:07 2007] [error] (EAI 2)Name or service not known: Failed to resolve server name for ***.***.***.*** (check DNS) -- or specify an explicit ServerName

请问这是什么错误啊？

[9981]

哦！
解决了，没有设域名。