apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
問題情況：
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$ sudo /etc/init.d/apache2 restart
* Restarting web server apache2
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
解決步驟：
爲了解決這個問題，你需要編輯下面這個httpd.conf文件，打開它並根據如下操作進行編輯：
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sudo gedit /etc/apache2/httpd.conf
默認的httpd.conf是個空文件，現在向裏面加入如下內容：
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ServerName localhost
這裏可以改成自己網站域名如www.baidu.com
保存並退出。
最後重啓服務器：
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sudo /etc/init.d/apache2 restart
http://blog.csdn.net/firstboy0513/article/details/5866133