httpd   -f   XXXXX/httpd.conf   提示出错

系统是Red Hat Linux release 9 (Shrike)
装的httpd    httpd-2.0.40-21

[root@mysql root]# apachectl configtest
Syntax OK

[root@mysql root]# /etc/rc.d/init.d/httpd restart
停止  httpd                                          [  确定]
启动  httpd                                            [ 确定 ]

[root@mysql bin]# pstree |grep http
    |-httpd---8*[httpd]

[root@mysql root]# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=mysql
GATEWAY=172.16.1.1

[root@mysql bin]# ./httpd -f /usr/local/XXXXXXXX/cfg/httpd.conf
[Thu Oct  2 01:29:21 2008] [alert] httpd: Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName

按照网上所说的，修改/etc/httpd/conf/下的httpd.conf
ServerName 127.0.0.1:80(试过ServerName 172.16.1.212:80,ServerName mysql:80)

还是提示httpd: Could not determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
想不出什么解决的办法。

请帮我看一下，谢谢~