[root@localhost nagios-plugins-1.4.15]# /etc/init.d/httpd restart

停止 httpd：                                               [确定] 正在启动 httpd：httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain for ServerName  

[root@localhost ~]# nano /etc/httpd/conf/httpd.conf

找到#ServerName localhost:80  去掉注视#