httpd: Could not reliably determine the server's fully qualified domain name, us

httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName

解决办法：
#vim /web/apache/conf/httpd.conf (在这里/web/apahce是我安装apache的目录，你默认安装的话应该是/usr/local/apache2/icons)
找到#ServerName www.example.com:80   把#去掉，再重启apache即可没事了。
现象：
bogon:~/webserver/httpd-2.0.59 # /usr/local/apache2/bin/apachectl start
httpd: Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
httpd (pid 20183) already running
这个问题应该是沒有在 /etc/httpd/conf/httpd.conf 中设定 ServerName 
vi /usr/local/apache2/conf/httpd.conf
最简单的，修改httpd.conf文件，增加:
ServerName www.example.com:80
我的改为:
ServerName www.example.com:80
再次启动就正常了!