Starting nagios:This account is currently not available.

Nagios服务启动报错如下：

[root@quan ~]# service nagios start
Starting nagios:This account is currently not available.
done.

解决方法：

 把 nagios:x:501:501::/home/nagios:/sbin/nologin  

修改为

 nagios:x:501:501::/home/nagios:/bin/bash 

重启nagios服务即可。